Satellite Swarm Spots North Pole Drift : Discovery News

6/27/2014
Swarm reveals Earth’s changing magnetism / Swarm / Observing the Earth / Our Activities / ESA
→ EUROPEAN SPACE AGENCY
ESA
ABOUT US
OBSERVING THE EARTH
ESA's magnetic field
mission
OUR ACTIVITIES
CONNECT WITH US
FOR MEDIA
FOR EDUCATORS
FOR KIDS
SWARM
Search here
ESA > Our Activities > Observing the Earth > Swarm
Related links
An Earth Explorer
Heading true north
Understanding Earth’s
protective shield
Facts and figures
Third Swarm scie nce
m e e ting
About the mission
Swarm in orbit
Meet the team
Magne tic fie ld update
Multimedia
Image gallery
Video gallery
Downloads
Services
Subscribe
Earth from Space :
Swarm re sults
e x plaine d
Magnetic field changes
SWARM REVEALS EARTH’S CHANGING MAGNETISM
19 June 2014 The first set of high-resolution results from ESA’s three-satellite Swarm constellation
reveals the most recent changes in the magnetic field that protects our planet.
Magne tic fie ld: an
introduction
Launched in November 2013, Swarm is providing unprecedented insights into the complex
workings of Earth’s magnetic field, which safeguards us from the bombarding cosmic radiation and
DTU Space
charged particles.
Measurements made over the past six months
confirm the general trend of the field’s
weakening, with the most dramatic declines over
the Western Hemisphere.
But in other areas, such as the southern Indian
Ocean, the magnetic field has strengthened
since January.
The latest measurements also confirm the
movement of magnetic North towards Siberia.
These changes are based on the magnetic
signals stemming from Earth’s core. Over the
June 2014 magnetic field
coming months, scientists will analyse the data
to unravel the magnetic contributions from other sources, namely the mantle, crust, oceans,
ionosphere and magnetosphere.
This will provide new insight into many natural processes, from those occurring deep inside our
planet to space weather triggered by solar activity. In turn, this information will yield a better
http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/Swarm_reveals_Earth_s_changing_magnetism
1/3
6/27/2014
Swarm reveals Earth’s changing magnetism / Swarm / Observing the Earth / Our Activities / ESA
understanding of why the magnetic field is weakening.
“These initial results demonstrate the excellent performance of
Swarm,” said Rune Floberghagen, ESA’s Swarm Mission Manager.
“With unprecedented resolution, the data also exhibit Swarm’s
capability to map fine-scale features of the magnetic field.”
The first results were presented today at the ‘Third Swarm Science
Meeting’ in Copenhagen, Denmark.
Earth's magnetic field
Sofie Carsten Nielsen, Danish Minister of Higher Education and
Science, highlighted the Danish contribution to the mission. Swarm
continues the legacy of the Danish Ørsted satellite, which is still operational, as well as the
German Champ mission. Swarm’s core instrument – the Vector Field Magnetometer – was provided
by the Technical University of Denmark.
Denmark’s National Space Institute, DTU Space, has a leading role –
together with 10 European and Canadian research institutes – in the
Swarm Satellite Constellation Application and Research Facility, which
produces advanced models based on Swarm data describing each of
the various sources of the measured field.
Swarm
“I’m extremely happy to see that Swarm has materialised,” said
Kristian Pedersen, Director of DTU Space.
RATE THIS
VIEWS
52351
SHARE
Like
Rating: 4.69/5 (123 votes
Share
Tw eet
cast)
2.1k
434
90
29 points
137
RELATED ARTICLES
Swarm’s precise sense of magnetism
07 May 2014
Swarm heads for new heights
06 February 2014
ESA’s Swarm trio on its way to watch over our planet’s
magnetic shield
22 November 2013
@ESA_EO
LATEST ARTICLES
MOST-VIEWED ARTICLES
MOST-VIEWED IMAGES
http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/Swarm_reveals_Earth_s_changing_magnetism
MOST-VIEWED VIDEOS
2/3
EARTH FROM SPACE: SPECIAL EDITION
Earth from Space - Special ed1t1on
Re leased: 03/ 04/ 2012
Rating *****
Earth from Space: Special edrt1on
Re le ase d: 18/ 02/2014
Rating *****
RELATED LINKS
Wa t chin:
Ill
f,!.!§ll!!.f.j,j. .
Embe d Cod e
.
~
.:irc=-• ht.t.p: //,,...,,,.,,.. esa . 'l.n t./ •p• C• 'l.n?'l.de o • / conee n~/ ?i e w/
embed.jv/ 43s ;•; • 1ll'l.dt.b.• • e40 • h.e l.9h.t.•_· •_•_o _·
- - - --=A
More 'Earth from Space' videos
DETAILS T
Titl e Earth from Space : Special edition
Re le a sed 19/ 06/ 2014
Length 00 :05 : 58
Lan g u age English
Foot a g e Type Interview
Copyright ESA
Description
ESA Earth observation
USING OUR VIDEOS
Terms and Condrt:Jons
Help
Discover more about our planet with the Earth from Space video programme.
Contact us
In this special edition, Nils Olsen from DTU Space joins the show to discuss the la tes t measurements of Earth's
magne tic field and changes observed over the last six months by ESA's Swarm mission.
Our activities
Observing the Carth
[ Sea c r
ESA > Our Activit ies > Soace News
Human Spaceflight
Launchers
Navigation
Space Science
MOST VIEWED ARTICLES
Article 1-10 of 3 51
page 1 o f 3 6
............................................................................................................................................................................
l l 2 13 14 l 5 l 6 1718 19 l lO I > >>
.
,_
Space Engineering
Operations
· Technology
· Telecommunications &
Integrated Applications
Calendar
ESA-sponsored
conferences
Dat e
Views
Art icle
19 Mar 20 13
268674
Black hole - star pair orbiting at dizzying speed
21 Mar2013
1677 13
Planck reveals an almost per fect Universe
20 Jan 20 14
84844
31Jan 20 13
689 15
Building a lunar base with 30 printing
17 Jan 20 13
66866
Reull Vallis: a river ran through it
19 Jun 20 14
52358
Swarm reveals Earth's changing magnetism
.. SPACE IN VIDEOS
I
ESA's 'sleeping beauty' wakes up from deep space hibernation
10 Dec 20 13
52 196
Wake up, Rosetta!
02Apr 20 13
4 7605
Black hole wakes up and has a light snack
11 Nov 20 13
3759 1
GOCE gives in to gravity
10 Jan 20 14
35632
Suit up for Skinsuit
Article 1-10 o f 3 51
page 1 o f 3 6
············································································································································································
1 12 13 14 15 16 1718 19 110 1> >>
Figures updated to 27/06/2014
-
-
-
__
BBC News - Swarm mission makes magnetic maps
News
Sport
Weather
Capital
Future
Shop
TV
Radio
More…
Search
SCIENCE & ENVIRONMENT
Home
UK
Africa
Asia
Europe
Latin America
Mid-East
US & Canada
20 June 2014 Last updated at 11:04 GMT
Business
Health
Sci/Environment
Share
Tech
Entertainment
Video
Top Stories
EU signs pacts with
ex-USSR states
Swarm mission makes magnetic maps
By Jonathan Amos
Science correspondent, BBC News
Summit set to snub UK over Juncker
Sudan 'apostasy' woman freed again
China 'denies food' to held academic
Leukaemia clue in breast cancer
Features & Analysis
Forgotten flight
The little-known story of one of
the world's earliest hijackings
Twice a day
How Indian women manage
without toilets
Race against time
Can Iraq sort itself out before it's
too late to stop Isis?
Best of frenemies
Young Taiwanese protest against
China, but also want to work
there
A field snapshot in June. Reds are strong; blues are weak. The view is dominated by the core contribution
Europe's Swarm space mission has begun making maps of Earth's
magnetic field.
Related Stories
Data just released shows how the field generated in the planet's liquid
outer core varies in strength over the course of a few months.
Swarm 'delivers on
magnetic promise'
Swarm's early assessment appears to support the prevailing view that
this magnetic cloak in general is weakening.
Many experts believe it heralds a flip in the poles, where north becomes
south and vice versa, although it would take thousands of years to
complete.
The European Space Agency's Swarm mission was launched last
November.
It comprises three satellites that are equipped with a variety of
instruments - the key ones being state-of-the-art magnetometers that
measure field strength and direction.
Satellites launch to
map magnetism
Mission to sense
ocean magnetism
Most Popular
Shared
Sudan death row woman freed again
Amazon 'bullying' UK publishers
Rooftop prisoners offered sun cream
The long, dark walk to the toilet
EU signs pacts with ex-USSR states
Read
EU signs pacts with ex-USSR states
They fly in a configuration that offsets one platform from the other two.
Pornographic videos flood YouTube
The intention is that this should provide a three-dimensional view of the
field, and make it easier to tease apart its various components.
The long, dark walk to the toilet
In the release this week from Esa, we get a view that is dominated by the
EU summit set to confirm Juncker
http://www.bbc.com/news/science-environment-27941557[27/06/2014 12:06:27]
BBC News - Swarm mission makes magnetic maps
contribution (95%) from the core. But eventually, Swarm will have the
sensitivity to describe magnetism from other, more subtle sources,
including that generated by the movement of our salt-water oceans.
The story of a 60-year-old hijacking
LaBeouf charged over theatre conduct
The growing problem of Pablo Escobar’s
hippos
Bad review couple win compensation
Maliki: Russian jets will turn tide
Sudan death row woman freed again
Video/Audio
Harry visits Brazil's 'crack land'
'The most beautiful metro in the world'
One-minute World News
Putin aide calls Ukraine leader a Nazi
Change in the field since January. Reds are a strengthening; blues are a weakening
The maps on this page use the magnetic unit of a nanoTesla. Earth's
field typically has a full strength of some 50,000nT.
The moment Ukraine signed EU deal
Obama congratulates Team USA
Maliki: Russian jets purchased by Iraq
The maps illustrate a snapshot (in June) and the change that occurs
through time (January to June). In the latter, field strength is seen to drop
over the western hemisphere but rise in other areas, such as the
southern Indian Ocean.
Who is the man leading Boko Haram?
Webscape: Discover who takes Bitcoin
Earth's magnetic field is worthy of study because it is the vital shield that
protects the planet from all the charged particles streaming off the Sun.
Without it, those particles would strip away the atmosphere, just as they
have done at Mars.
Investigating the magnetic field also has direct practical benefits, such as
improving the reliability of satellite navigation systems which can be
affected by magnetic and electrical conditions high in the atmosphere.
"I started my career in magnetometry and the accuracy we had then in
the laboratories was less than what we can fly in space now," explained
Prof Volker Liebig, the director of Earth observation at Esa.
"So what we have on Swarm is fantastic, but we need long time series to
understand fully the Earth's magnetic field, and we will get that from this
mission," he told BBC News.
The alien brains living on
Earth
What creature has brains mostly in their
arms? Read more...
Programmes
http://www.bbc.com/news/science-environment-27941557[27/06/2014 12:06:27]
Date : 23/06/2014
Pays : ESPAGNE
Surface : 64 %
Mots : 429
> Lire cet article sur le site web
El Polo Norte magnético se desplaza hacia Siberia
Los satélites de la misión Swarm confirman el debilitamiento del campo magnético El Polo Norte magnético se
desplaza ESA Copenhague. (Efe).- Los primeros resultados de la misión Swarm, el grupo de tres satélites
lanzados en noviembre por la Agencia Espacial Europea (ESA), confirman la tendencia general sobre el
debilitamiento del campo magnético terrestre y el desplazamiento del Polo Norte magnético hacia Siberia. Según
aseguraron los responsables del proyecto en una conferencia organizada por la ESA en Copenhague, el
debilitamiento es mayor en el hemisferio occidental, aunque en otras áreas como el Índico sur se ha producido el
fenómeno contrario. Las medidas registradas por Swarm desde enero pasado confirman también el desplazamiento
progresivo del Polo Norte magnético hacia Siberia. Los expertos reunidos en Copenhague estimaron que en un
plazo de entre 5.000 y 10.000 años habrá una inversión en el campo magnético, un fenómeno que se ha producido
varias veces antes en la historia del planeta, la última hace 780.000 años. Nils Olsen, uno de los científicos al
frente del proyecto, calificó de "excelentes" los datos preliminares aportados por la misión, aunque resaltó a Efe
que ha pasado "demasiado poco tiempo" para sacar conclusiones más amplias sobre las mediciones de la
operación, que durará cuatro años, y sus aplicaciones. Las alteraciones detectadas en los primeros resultados de
Swarm están basadas en señales magnéticas del núcleo terrestre. Para las próximas observaciones se incluirán
también otras fuentes de medición como el manto, la corteza, los océanos, la ionosfera y la magnetosfera, lo que
permitirá un mayor conocimiento de diversos procesos naturales. La misión Swarm despegó del cosmódromo de
Plesetsk (Rusia) en noviembre para estudiar los procesos en el interior de la Tierra, comprender mejor su campo
magnético y por qué se está debilitando esta burbuja que protege el planeta de la radiación cósmica y las
partículas cargadas que llegan a través del viento solar. La misión, que usa tecnología europea y canadiense, tiene
también como objetivo aplicaciones prácticas, como mejorar la precisión de los sistemas de navegación por
satélite y la predicción de terremotos o hacer más eficaz la extracción de recursos naturales. Los datos científicos
-abiertos a toda la comunidad investigadora- se descargarán a través de la estación de seguimiento de Kiruna
(Suecia) y se procesarán, distribuirán y archivarán en el Centro para la Observación de la Tierra de la ESA en
Frascati (Italia). Te puede interesar: los usuarios que han consultado esto también han visto... Si todavía no estás
registrado en LaVanguardia.com, regístrate ahora: El acceso se ha realizado correctamente. Muchas gracias.
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ALLEMAGNE
Périodicité : Quotidien
Surface : 40 %
Mots : 340
(Zusammenfassung 1545) «Swarm»-Satelliten:
Erdmagnetfeld wird nicht überall schwächer (Foto - Archiv
und Foto-Illustration)
Seit November sind die drei europäischen «Swarm»-Satelliten unterwegs im All. Sie nehmen das Magnetfeld der
Erde unter die Lupe. Der Schutzschild wird schwächer - aber nicht überall. Kopenhagen (dpa) - Das
lebenswichtige Magnetfeld der Erde wird zur Verblüffung von Weltraumforschern nicht überall schwächer. Das
geht aus ersten Daten des europäischen Satelliten-Trios «Swarm» hervor, die Wissenschaftler der europäischen
Weltraumagentur Esa am Donnerstag bei einer Konferenz in Kopenhagen vorstellten. Der Schutzschild vor
gefährlichen Teilen aus dem All nimmt seit vielen Jahrzehnten langsam ab. «In manchen Regionen haben wir aber
sogar eine Intensivierung, zum Beispiel südöstlich von Afrika», sagte der Forscher Nils Olsen. Am stärksten
nimmt das Magnetfeld dagegen in der westlichen Hemisphäre ab. Mancherorts, wie etwa in der
Südatlantik-Region, werde das Feld sogar bis zu zehn Mal so schnell schwächer als im globalen Durchschnitt,
berichteten die Forscher. Die Satelliten «Alpha», «Bravo» und «Charlie» sind seit November 2013 in einer Höhe
von rund 500 Kilometern unterwegs und liefern seitdem genaue Daten über Stärke, Richtung und Schwankungen
des Magnetfeldes. Die große Errungenschaft, die sich die Forscher von dem Einsatz der Satelliten erhoffen, ist
eine weltweite detaillierte Übersicht über das Magnetfeld und seine Veränderungen. Weil durch Teilchenschauer
etwa Stromnetze gestört werden könnten, sei es «wichtig zu wissen, wie ein magnetisches Feld sich entwickelt»,
sagte Olsen. Die ersten Satellitendaten haben außerdem die Wanderung des magnetischen Nordens Richtung
Sibirien bestätigt. Durch das «Swarm»-Trio wollen die Wissenschaftler auch Aufschlüsse etwa über das
Weltraumwetter gewinnen. Die Satelliten könnten nach Einschätzung der Forscher viel länger im All bleiben als
geplant. «Wir nehmen an, dass "Swarm" länger dauert als vier Jahre - alles sieht danach aus», sagte der
Wissenschaftler Roger Haagmans. Bis zu zehn Jahre könnten die drei baugleichen Satelliten demnach den
lebenswichtigen Schutzschild vor gefährlichen Teilchen aus dem All erkunden. # dpa-Notizblock Missing
Internet [Esa](http://dpaq.de/8dJDY)
[Die
Swarm-Mission](http://dpaq.de/zYwQU)
[Mitteilung
Esa](http://dpaq.de/ASr4R) Missing
Orte - [IDA Conference Center](Kalvebod Brygge 31, 1560 København V,
Dänemark) dpa wbj xx z2 si 191549 Jun 14 Copyright: dpa Deutsche Presse-Agentur GmbH
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ALLEMAGNE
Périodicité : Quotidien
Surface : 22 %
Mots : 178
Satelliten-Trio «Swarm» könnte viel länger im All bleiben
als geplant (Foto - Archiv)
Kopenhagen (dpa) - Das europäische Satelliten-Trio «Swarm» könnte das Magnetfeld der Erde vom All aus viel
länger untersuchen als geplant. «Wir nehmen an, dass "Swarm" länger dauert als vier Jahre - alles sieht danach
aus», sagte der Wissenschaftler Roger Haagmans am Donnerstag bei einer «Swarm»-Konferenz in Kopenhagen.
Bis zu zehn Jahre könnten die drei baugleichen Satelliten der europäischen Weltraumagentur Esa demnach den
lebenswichtigen Schutzschild vor gefährlichen Teilchen aus dem All unter die Lupe nehmen. «Alpha», «Bravo»
und «Charlie» sind seit November 2013 in einer Höhe von rund 500 Kilometern unterwegs und liefern seitdem
genaue Daten über Stärke, Richtung und Schwankungen des Magnetfeldes. Dieses wird wie von den
Wissenschaftlern erwartet schwächer - aber nicht überall gleichermaßen, haben die Forscher schon
herausgefunden. # dpa-Notizblock Missing
Redaktionelle Hinweise - Zusammenfassung bis 1600 - ca. 30 Zl. Missing
Internet - [Esa](http://dpaq.de/8dJDY) - [Die Swarm-Mission](http://dpaq.de/zYwQU) Missing
Orte - [IDA Conference
Center](Kalvebod Brygge 31, 1560 København V, Dänemark) dpa wbj xx n1 si 191432 Jun 14 Copyright: dpa
Deutsche Presse-Agentur GmbH
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ESPAGNE
Page(s) : 1
Surface : 67 %
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ESPAGNE
Surface : 56 %
efefuturo.com
Mots : 379
> Lire cet article sur le site web
Satélites de la misión Swarm confirman el debilitamiento del
campo magnético
Copenhague (EFEfuturo).- Los primeros resultados de la misión Swarm, el grupo de tres satélites lanzados en
noviembre por la Agencia Espacial Europea (ESA), confirman la tendencia general sobre el debilitamiento del
campo magnético terrestre. Jueves 19.06.2014 Según aseguraron hoy los responsables del proyecto en una
conferencia organizada por la ESA en Copenhague, el debilitamiento es mayor en el hemisferio occidental,
aunque en otras áreas como el Índico sur se ha producido el fenómeno contrario. Las medidas registradas por
Swarm desde enero pasado confirman también el desplazamiento progresivo del Polo Norte magnético hacia
Siberia. Los expertos reunidos en Copenhague estimaron que en un plazo de entre 5.000 y 10.000 años habrá una
inversión en el campo magnético, un fenómeno que se ha producido varias veces antes en la historia del planeta,
la última hace 780.000 años. Nils Olsen, uno de los científicos al frente del proyecto, calificó de "excelentes" los
datos preliminares aportados por la misión, aunque resaltó a Efe que ha pasado "demasiado poco tiempo" para
sacar conclusiones más amplias sobre las mediciones de la operación, que durará cuatro años, y sus aplicaciones.
Las alteraciones detectadas en los primeros resultados de Swarm están basadas en señales magnéticas del núcleo
terrestre. Para las próximas observaciones se incluirán también otras fuentes de medición como el manto, la
corteza, los océanos, la ionosfera y la magnetosfera, lo que permitirá un mayor conocimiento de diversos procesos
naturales. La misión Swarm despegó del cosmódromo de Plesetsk (Rusia) en noviembre para estudiar los procesos
en el interior de la Tierra, comprender mejor su campo magnético y por qué se está debilitando esta burbuja que
protege el planeta de la radiación cósmica y las partículas cargadas que llegan a través del viento solar. La misión,
que usa tecnología europea y canadiense, tiene también como objetivo aplicaciones prácticas, como mejorar la
precisión de los sistemas de navegación por satélite y la predicción de terremotos o hacer más eficaz la extracción
de recursos naturales. Los datos científicos -abiertos a toda la comunidad investigadora- se descargarán a través de
la estación de seguimiento de Kiruna (Suecia) y se procesarán, distribuirán y archivarán en el Centro para la
Observación de la Tierra de la ESA en Frascati (Italia). EFE
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 20/06/2014
Pays : ESPAGNE
Page(s) : 40
Diffusion : (95855)
Périodicité : Quotidien
Surface : 13 %
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 20/06/2014
Pays : ESPAGNE
Surface : 56 %
Mots : 375
> Lire cet article sur le site web
Confirman el debilitamiento del campo magnético de la
Tierra - La Razón digital
Los primeros resultados de la misión Swarm, el grupo de tres satélites lanzados en noviembre por la Agencia
Espacial Europea (ESA), confirman la tendencia general sobre el debilitamiento del campo magnético terrestre.
Según aseguraron los responsables del proyecto en una conferencia organizada por la ESA en Copenhague, el
debilitamiento es mayor en el hemisferio occidental, aunque en otras áreas como el Índico sur se ha producido el
fenómeno contrario. Las medidas registradas por Swarm desde enero pasado confirman también el desplazamiento
progresivo del Polo Norte magnético hacia Siberia. Los expertos reunidos en Copenhague estimaron que en un
plazo de entre 5.000 y 10.000 años habrá una inversión en el campo magnético, un fenómeno que se ha producido
varias veces antes en la historia del planeta, la última hace 780.000 años. Nils Olsen, uno de los científicos al
frente del proyecto, calificó de «excelentes» los datos preliminares aportados por la misión, aunque resaltó a Efe
que ha pasado «demasiado poco tiempo» para sacar conclusiones más amplias sobre las mediciones de la
operación, que durará cuatro años, y sus aplicaciones. Las alteraciones detectadas en los primeros resultados de
Swarm están basadas en señales magnéticas del núcleo terrestre. Para las próximas observaciones se incluirán
también otras fuentes de medición como el manto, la corteza, los océanos, la ionosfera y la magnetosfera, lo que
permitirá un mayor conocimiento de diversos procesos naturales. La misión Swarm despegó del cosmódromo de
Plesetsk (Rusia) en noviembre para estudiar los procesos en el interior de la Tierra, comprender mejor su campo
magnético y por qué se está debilitando esta burbuja que protege el planeta de la radiación cósmica y las
partículas cargadas que llegan a través del viento solar. La misión, que usa tecnología europea y canadiense, tiene
también como objetivo aplicaciones prácticas, como mejorar la precisión de los sistemas de navegación por
satélite y la predicción de terremotos o hacer más eficaz la extracción de recursos naturales. Los datos científicos
-abiertos a toda la comunidad investigadora- se descargarán a través de la estación de seguimiento de Kiruna
(Suecia) y se procesarán, distribuirán y archivarán en el Centro para la Observación de la Tierra de la ESA en
Frascati (Italia).
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ITALIE
Surface : 61 %
(1/2)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ITALIE
Surface : 61 %
(2/2)EARTH OBSERVATION
Tous droits de reproduction réservés
Date : 19/06/2014
Pays : ESPAGNE
Surface : 98 %
Mots : 663
> Lire cet article sur le site web
España hace negocio en órbita
Se situará en una órbita a 620 kilómetros de altitud desde donde tomará imágenes en alta resolución de la
superficie terrestre Lanzamiento del Deimos-2 - El satélite español de observación de la Tierra se situará en una
órbita a 620 kilómetros de altitud El satélite español de observación de la Tierra Deimos-2 está a punto para ser
lanzado al espacio hoy jueves a las 21.11 (hora española) desde la base rusa de Dombarovsky. Construido por la
empresa Elecnor Deimos, el satélite se situará en una órbita a 620 kilómetros de altitud desde donde tomará
imágenes en alta resolución de la superficie terrestre. Las imágenes se comercializarán para, entre otros objetivos,
mejorar la gestión de cosechas, la prevención de hambrunas, el control de la piratería en el Índico y la reacción
ante incendios o inundaciones.Deimos-2 es el sucesor de Deimos-1, misión pionera que ha demostrado que un
satélite español financiado únicamente con capital privado puede ser rentable. Lanzado hace cinco años, Deimos-1
ha conseguido como principales clientes al Gobierno de Estados Unidos -que le contrata para suministrar datos
que permitan optimizar las cosechas- y la Unión Europea -que le contrata, por ejemplo, para monitorizar sequías
en África y enviar ayuda humanitaria a tiempo-."Tenemos clientes en todo el mundo. Hacemos desde detección de
cultivos ilegales en Colombia hasta control de inundaciones en Australia, terremotos en Japón o ayudar en la
búsqueda del avión de Malasia", explica Miguel Belló, director general de Elecnor Deimos.Con el nuevo satélite,
la empresa prevé mejorar su servicio. Si Deimos-1 capta imágenes de 650 kilómetros de lado y fotografía la
superficie terrestre como un gran angular, Deimos-2 aumenta la resolución hasta los 12 kilómetros y la fotografía
como un teleobjetivo. Tener los dos satélites simultáneamente en órbita permitirá a Elecnor Deimos ofrecer a sus
clientes al mismo tiempo una visión de conjunto y una visión detallada de las zonas de más interés. "Cuando
rastreamos piratas en el Índico, por ejemplo, nos interesa tener una resolución muy alta", señala Belló.La misión
tiene un presupuesto total de 60 millones de euros -frente a los 25 millones de Deimos-1- y una duración prevista
de siete años. Si el satélite sigue en buen estado en el año 2021, en principio se prorrogará la misión. También
está previsto prolongar la de Deimos-1, que en principio debía retirarse en el 2015 pero se conserva en buen
estado.Para el lanzamiento se ha contratado un cohete ruso Dnepr, un antiguo misil de la guerra fría al que se ha
retirado la cabeza nuclear para reutilizarlo -y venderlo- con fines no militares. Unos quince minutos después del
lanzamiento, el satélite se situará en una órbita que sobrevolará los polos y posteriormente desplegará sus cuatro
paneles solares. Deimos-2 va equipado además con un motor de propulsión iónica alimentado con xenón para
corregir su trayectoria cuando sea preciso. Con 300 kilos de peso, tres metros de longitud y uno de anchura (sin
contar los paneles solares), se trata de un satélite pequeño para el que la propulsión iónica es ideal.Una vez en
órbita, se comprobará que todos los dispositivos del satélite funcionan correctamente desde el centro de control de
la misión ubicado en Puertollano (Castilla-La Mancha). Aunque las primeras imágenes llegarán en los próximos
días, harán falta varios meses para calibrar la cámara antes de iniciar su explotación comercial. Con unos 350
trabajadores, la mayoría de ellos ingenieros, Elecnor Deimos es una empresa íntegramente española. Fue fundada
en el 2001 y trabajó desde sus inicios en proyectos de la Agencia Espacial Europea (ESA), con lo que adquirió la
experiencia necesaria para construir y comercializar sus propios satélites. En el 2006 incorporó al astronauta Pedro
Duque, que acababa de obtener una excedencia de cinco años de la ESA, para dirigir la puesta en marcha del
programa de satélites Deimos. Te puede interesar: los usuarios que han consultado esto también han visto... Si
todavía no estás registrado en LaVanguardia.com, regístrate ahora: El acceso se ha realizado correctamente.
Muchas gracias.
(1/1)EARTH OBSERVATION
Tous droits de reproduction réservés
Il campo magnetico della Terra è sempre più debole. I risultati di Swarm | Effetto Terra
Forum
Scienza
BLOG
Ambiente
EFFETTO TERRA
Newsletter
Cultura
REGISTRATI
Edicola
Tecnologia
Comportamento
LOGIN
Video
iFocus
GEOLOGIA
CAMPO MAGNETICO SEMPRE PIÙ DEBOLE. CHE SUCCEDERÀ ALLA TERRA?
Cerca
Cerca
GEOLOGIA
Campo magnetico sempre più debole. Che succederà
alla Terra?
Il satellite europeo Swarm ha iniziato a mappare il campo magnetico terrestre.
Confermando alcuni trend e aiutandoci a capire l’evoluzione del magnetismo terrestre.
Su questo blog
Questo blog ha il desiderio di raccontare la vita, le
storie, il palpito del nostro Pianeta, la Terra. L'unico
pianeta che, ad oggi, conosciamo possedere una vita
intelligente.
Il nostro pianeta è in continua evoluzione. Vulcani,
terremoti, uragani e tornado, ma anche piccoli ruscielli
di montagna, dolci colline e i grandi oceani ci dicono
che il nostro pianeta è vivo.
E come ogni essere vivente vivo, ogni giorno ha un
nuovo racconto da rivelarci.
E fin che sarà possibile cercheremo insieme, ossia
anche con l'aiuto di chi legge, di raccontare le sue
storie, i suoi palpiti e i suoi sussulti.
Chi cercherà di tenere le fila di questo racconto è Luigi
Bignami. Sono un geologo che ha come obiettivo di
raccontare a chi ha poco tempo di seguire tutti gli
avvenimenti che interessano la Terra, ma che ne è
Il colore blu indica un indebolimento del campo magnetico terrestre, quello rosso un rafforzamento
Il campo magnetico terrestre che ci protegge dalle radiazioni provenienti dal
cosmo e che indirizza la bussola verso il Polo Nord si sta indebolendo.
Lo si sapeva già da tempo, ma ora c’è una certezza assoluta. Lo ha stabilito il satellite
Swarm dell’Esa. Lanciato nel novembre 2013, Swarm fornisce dati senza precedenti
sul complesso funzionamento del campo magnetico della Terra.
http://blog.focus.it/effetto-terra/2014/06/21/campo-magnetico-sempre-piu-debole-che-succedera-alla-terra/[27/06/2014 13:44:08]
interessato, quel che avviene giorno dopo giorno al
nostro pianeta e di vivere insieme a voi la grande
avventura dell'esplorazione di questa "astronave",
davvero rara, se non unica nel suo genere.
Post più letti
1. Ecco il "primo extraterrestre" caduto sulla Terra
Il campo magnetico della Terra è sempre più debole. I risultati di Swarm | Effetto Terra
2. Prime luci sulla misteriosa struttura del Mar Baltico
3. E se 2012 DA14...
Le misurazioni effettuate nel corso degli ultimi sei mesi confermano la tendenza
generale di indebolimento del campo magnetico, con un calo davvero drammatico
che sta verificandosi nell’emisfero occidentale. In altre aree del pianeta, tuttavia, come
sull’Oceano Indiano meridionale, il campo magnetico si sta rafforzato da gennaio.
4. Terremoto in Adriatico. C'è pericolo tsunami?
5. La colpa del freddo è la mancanza di ghiacci polari
6. Terremoto in Campania, non si fa così!
7. I terremoti che hanno colpito l'Italia
8. Terremoto in Emilia Romagna
9. Nuove scosse in Emilia: perché il terremoto non è
E si sposta. Le ultime misurazioni, tra l’altro, confermano anche il movimento del
Polo Nord magnetico verso la Siberia. Questi cambiamenti sono basati sui segnali
magnetici che hanno il loro motore nel nucleo della Terra. In particolare nel nucleo
esterno dove il movimento del ferro allo stato liquido produce il campo magnetico
terrestre.
terminato
10. Gli studi per prevedere i terremoti (parte prima)
Archivio
Seleziona
mese
Seleziona
mese
Nel corso dei prossimi mesi, gli scienziati analizzeranno i dati per svelare i contributi
magnetici provenienti da altre fonti, vale a dire dal mantello, dalla crosta, dagli oceani,
dalla ionosfera e dalla magnetosfera.
Categorie
Ciò fornirà una nuova visione di molti processi naturali, da quelli che si verificano in
profondità all’interno del nostro pianeta fino a quelli prodotti dall’attività solare. A sua
volta, questa informazione produrrà una migliore comprensione del perché il campo
magnetico si sta indebolendo.
«Questi primi risultati dimostrano l’ottima performance di Swarm», ha dichiarato
Rune Floberghagen, Mission Manager di Swarm. «Con una risoluzione senza
precedenti, i dati mostrano valori molto particolareggiati per ogni singola area del
pianeta, fondamentale per capire cosa sta avvenendo a livello globale al campo
magnetico».
Blogroll
Ambiente
Documentation
Animali
Plugins
Archeologia
Suggest Ideas
Clima
Support Forum
Curiosity
Themes
Energia
WordPress Blog
Esopianeti
WordPress Planet
Geologia
Ghiacci
Marte
Misteri
Natura
Osservare la Terra dal
I primi risultati sono stati presentati 19 giugno 2014 presso il terzo Swarm Science
Meeting a Copenhagen, Danimarca.
cielo
Senza categoria
Spazio
I più colpiti saranno gli animali. Ma cosa significa un campo magnetico sempre più
debole? Al momento gli scienziati non si sbilanciano, ma stando ad alcune previsioni
potrebbe voler dire che siamo vicini ad un’inversione del campo medesimo. Questo
potrebbe portare il Polo Nord a diventare il Polo Sud e viceversa. Tranquilli, ci
metterà migliaia di anni e non sarà un evento così repentino.
Terremoto
Il fenomeno dell’inversione dei poli è già successo tante volte nel passato remoto della
Terra, ma mai da che esiste l’ Homo sapiens e dunque non sappiamo esattamente si ci
potrebbero essere delle ripercussioni.
TUTTI I BLOG
Uomini del Pianeta
Terra
Vulcani
preistoria
Focus su Twitter
Certo è che ce ne potrebbero essere per molti animali, soprattutto uccelli, che
utilizzano il campo magnetico per le migrazioni.
Di luigibignami Pubblicato 21 giugno 2014
0
Tag:
250
22
3
5
Tweet
Lascia un Commento
L'oasi del Mar Morto
L'indirizzo email non verrà pubblicato. I campi obbligatori sono contrassegnati *
dead-sea-wonder-of-nature.com
Nome *
Il bacino più basso del mondo
Sorgenti, piscine e piante uniche!
Email *
http://blog.focus.it/effetto-terra/2014/06/21/campo-magnetico-sempre-piu-debole-che-succedera-alla-terra/[27/06/2014 13:44:08]
Swarm reveals Earth’s changing magnetism -- ScienceDaily
Mobile: iPhone
?
Health
Latest Headlines
Android
Web
PhYsical/Tech
Follow: Facebook
Twitter
EnVirOnment
Health & Medicine
Mind & Brain
Featured Research
Google+
SOcietY/EducatiOn
Space & Time
Matter & Energy
Subscribe: RSS Feeds
QuirKY
Computers & Math
Plants & Animals
from universities, journals, and other organizations
Search
Earth & Climate
Save/Print:  
Fossils & Ruins
Share:     
Breaking News:
Superconductor World Record Set
Swarm reveals Earth’s changing magnetism
Date: June 20, 2014
Email Newsletters
Enter keyword or phrase ...
Share This
Source: European Space Agency
Summary: The first set of high-resolution results from ESA's three-satellite
Swarm constellation reveals the most recent changes in the magnetic
field that protects our planet. Launched in November 2013, Swarm is
providing unprecedented insights into the complex workings of Earth's
magnetic field, which safeguards us from the bombarding cosmic
radiation and charged particles. Measurements made over the past six
months confirm the general trend of the field's weakening, with the
most dramatic declines over the Western Hemisphere.
  Email to a friend
  Facebook
  Twitter
  Google+
  Print this page
  More options
Related Topics
Earth & Climate
 Atmosphere
 Geomagnetic Storms
Related Stories
 Geology
 Earth Science
How Solar Wind Can Break
Through Earth's Magnetic Field
 Weather
June 9, 2014 — Space is not
empty. A wind of charged particles
blows outwards from the Sun,
carrying a magnetic field with it. Sometimes this
solar wind can break through the Earth’s magnetic
field. Researchers ... full story
 Environmental
Awareness
Related Articles
 Geophysics
 Tide
Satellite Trio to Explore the
Earth's Magnetic Field
 Earth
 Power station
 Radiant energy
 Temperature record of
the past 1000 years
Changes in Earth’s magnetic field from January to June 2014 as measured by
the Swarm constellation of satellites. These changes are based on the magnetic
signals that stem from Earth’s core. Shades of red represent areas of
strengthening, while blues show areas of weakening over the 6-month period.
Credit: ESA/DTU Space
T
[Click to enlarge image]
he first set of high-resolution results from ESA's three-satellite
Swarm constellation reveals the most recent changes in the
magnetic field that protects our planet.
Launched in November 2013, Swarm is providing
unprecedented insights into the complex workings of
Earth's magnetic field, which safeguards us from the
bombarding cosmic radiation and charged particles.
Measurements made over the past six months
confirm the general trend of the field's weakening,
with the most dramatic declines over the Western
Hemisphere.
But in other areas, such as the southern Indian
Ocean, the magnetic field has strengthened since
January.
Studio sul
colesterolo
clinlife.it/Colesterolo…
Cerchiamo persone
con malattie
cardiovascolari. Altre
informazioni
The latest measurements also confirm the
movement of magnetic North towards Siberia.
These changes are based on the magnetic signals
stemming from Earth's core. Over the coming
months, scientists will analyse the data to unravel the magnetic contributions from
http://www.sciencedaily.com/releases/2014/06/140620115751.htm[27/06/2014 13:45:41]
Nov. 22, 2013 — In a dense fog, a
Russian Rockot rocket on 22
November 2013 cleared the
launchpad of the Baikonur Cosmodrome on
schedule at 13:02:15 CET. In the tip of the rocket:
three identical satellites to ... full story
Swarm Intelligence: New
Collective Properties of Swarm
Dynamics Uncovered
Mar. 15, 2013 — A new study of
animal swarms uncovers some new features of
their collective behavior when overcrowding sets
in. Swarming is the spontaneous organized motion
of a large number of individuals. It is ... full story
Rapid Changes in the Earth's
Core: The Magnetic Field and
Gravity from a Satellite
Perspective
Oct. 22, 2012 — Annual to decadal
changes in Earth's magnetic field in
a region that stretches from the
Atlantic to the Indian Ocean have a
close relationship with variations of gravity in this
area. From this ... full story
The Science Behind Those EyePopping Northern Lights
Oct. 2, 2012 — Stormy weather on
the sun drives the glistening aurorae
Swarm reveals Earth’s changing magnetism -- ScienceDaily
other sources, namely the mantle, crust, oceans, ionosphere and magnetosphere.
in our clear night ... full story
This will provide new insight into many natural processes, from those occurring deep
inside our planet to space weather triggered by solar activity. In turn, this information
will yield a better understanding of why the magnetic field is weakening.
 more related stories
"These initial results demonstrate the excellent performance of Swarm," said Rune
Floberghagen, ESA's Swarm Mission Manager.
"With unprecedented resolution, the data also exhibit Swarm's capability to map finescale features of the magnetic field."
The first results were presented June 19, 2014 at the 'Third Swarm Science Meeting'
in Copenhagen, Denmark.
Sofie Carsten Nielsen, Danish Minister of Higher Education and Science, highlighted
the Danish contribution to the mission. Swarm continues the legacy of the Danish
Ørsted satellite, which is still operational, as well as the German Champ mission.
Swarm's core instrument -- the Vector Field Magnetometer -- was provided by the
Technical University of Denmark.
Denmark's National Space Institute, DTU Space, has a leading role -- together with
10 European and Canadian research institutes -- in the Swarm Satellite
Constellation Application and Research Facility, which produces advanced models
based on Swarm data describing each of the various sources of the measured field.
"I'm extremely happy to see that Swarm has materialised," said Kristian Pedersen,
Director of DTU Space.
Trending Topics
from the past week
Plants & Animals
 Insects (including
Butterflies)
Story Source:
The above story is based on materials provided by European Space Agency. Note:
Materials may be edited for content and length.
 Zoology
Cite This Page:
 Genetics
 Biotechnology and
Bioengineering
 Microbiology
MLA
APA
Chicago
 Soil Types
European Space Agency. "Swarm reveals Earth’s changing magnetism."
ScienceDaily. ScienceDaily, 20 June 2014.
<www.sciencedaily.com/releases/2014/06/140620115751.htm>.
 Bacteria
 Birds
Earth & Climate
 Air Quality
Share This
 Pollution
  Email to a friend
 Renewable Energy
  Facebook
 Water
  Twitter
 Geochemistry
  Google+
 Energy and the
Environment
  Print this page
 Geography
  More options
 Snow and
Avalanches
Fossils & Ruins
 Ancient DNA
 Cultures
 Early Climate
 Origin of Life
 Charles Darwin
More Earth & Climate News
Friday, June 27, 2014
 Human Evolution
 Ancient Civilizations
Featured Research
Bloodsucking Mite
Threatens UK Honeybees
from universities, journals, and other organizations
 Bloodsucking Mite Threatens UK Honeybees
 Water-Cleanup Catalysts Tackle Biomass Upgrading
 Fossils
In Other News
... from NewsDaily.com
June 26, 2014 — Scientists have
discovered how a bloodsucking
parasite has transformed Deformed
Wing Virus (DWV) into one of the
biggest threats facing UK honeybees. Honeybees are
a key pollinating insect, adding ... full story
 Geothermometer for Methane Formation Developed
Science News
 Animals Built Reefs 550 Million Years Ago
 Ancient Ocean Currents: Effect On Ice Ages
 California scientists discover mouse-like
mammal related to elephants
 How Electric Fish's Jolt Evolved: Genomic Basis
 Hawaii at center of battle over aquarium fish
 Foul Fumes Derail Dinner for Hungry Moths
 Virology; Agriculture and Food; Microbes and More;
Pests and Parasites
 New Species of Elephant-Shrew Discovered
 Reef madness: scientists find oldest animal-built
marine structure
 Optical Fibers for Use in Harsh Environments
 Organics Boosts Biodiversity On Farmlands
 newer top stories | older top stories 
 Warning, high voltage: scientists solve mysteries
of electric fish
 Russia to debut first new space rocket design
since Soviet era
Health News
http://www.sciencedaily.com/releases/2014/06/140620115751.htm[27/06/2014 13:45:41]
Swarm reveals Earth's changing magnetism
Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
your email address
.
.
► NASA Space ► NASA Earth ► The Earth ► Earth First
Swarm reveals Earth's changing
magnetism
by Staff Writers
Paris (ESA) Jun 20, 2014
The first set of high-resolution results from
ESA's three-satellite Swarm constellation
reveals the most recent changes in the
magnetic field that protects our planet.
Launched in November 2013, Swarm is
providing unprecedented insights into the
complex workings of Earth's magnetic field,
which safeguards us from the bombarding
cosmic radiation and charged particles.
Measurements made over the past six months
confirm the general trend of the field's
weakening, with the most dramatic declines
over the Western Hemisphere. But in other
areas, such as the southern Indian Ocean, the Changes in Earth's magnetic field from January to
June 2014 as measured by the Swarm
magnetic field has strengthened since
constellation of satellites. These changes are
January.
based on the magnetic signals that stem from
Earth's core. Shades of red represent areas of
The latest measurements also confirm the
strengthening, while blues show areas of
movement of magnetic North towards Siberia. weakening over the 6-month period. Image
courtesy ESA/DTU Space. For a larger version of
These changes are based on the magnetic
this image please go here.
signals stemming from Earth's core. Over the
coming months, scientists will analyse the data to unravel the magnetic contributions from
other sources, namely the mantle, crust, oceans, ionosphere and magnetosphere.
http://www.spacemart.com/reports/Swarm_reveals_Earths_changing_magnetism_999.html[27/06/2014 15:35:17]
Space weather
report for an
subscribe free
Swarm reveals Earth's changing magnetism
This will provide new insight into many natural processes, from those occurring deep
inside our planet to space weather triggered by solar activity. In turn, this information will
yield a better understanding of why the magnetic field is weakening.
"These initial results demonstrate the excellent performance of Swarm," said Rune
Floberghagen, ESA's Swarm Mission Manager.
"With unprecedented resolution, the data also exhibit Swarm's capability to map finescale features of the magnetic field."
The first results were presented at the 'Third Swarm Science Meeting' in Copenhagen,
Denmark.
Sofie Carsten Nielsen, Danish Minister of Higher Education and Science, highlighted the
Danish contribution to the mission. Swarm continues the legacy of the Danish Orsted
satellite, which is still operational, as well as the German Champ mission. Swarm's core
instrument - the Vector Field Magnetometer - was provided by the Technical University of
Denmark.
Denmark's National Space Institute, DTU Space, has a leading role - together with 10
European and Canadian research institutes - in the Swarm Satellite Constellation
Application and Research Facility, which produces advanced models based on Swarm
data describing each of the various sources of the measured field.
"I'm extremely happy to see that Swarm has materialised," said Kristian Pedersen,
Director of DTU Space.
.
alien world
Paris (ESA) Jun 10, 2014
For the first time, ESA is providing regular
space-weather reports for a spacecraft
orbiting another planet. When your
spacecraft is surfing deep into the
atmosphere of an alien world, you need the
latest information on conditions that could
affect your trajectory. If that planet is
Venus, that means knowing what's
happening on our Sun in real time, because
solar activity can greatly influ ... read more
Scientists see Earth's most abundant mineral for the first
time
Researchers develop efficient approach to manufacture
3D metal parts
Selex ES is upgrading RAT 31 DL radar in Turkey
Defense against laser beam flashes at aircraft being
tested
Exelis enhancing communications for NATO country
Chemring integrates new system with Resolve
Northrop Grumman Receives Funding for Electronic
Warfare Systems for US Army and Navy
UK Connects with Allied Protected Communication
Satellites
European satellite chief says industry faces challenges
Payload fueling begins for nexy Arianespace Soyuz flight
Arianespace A World Leader In The Satellite Launch
Market
Airbus Group and Safran To Join Forces in Launcher
Activities
Soyuz Rocket puts Russian GLONASS-M navigation
satellite into orbit
Russia may join forces with China to compete with US,
European satnavs
Related Links
ESA Swarm
The latest information about the Commercial Satellite Industry
► Earth First ► Earth Ocean ► Earth World ► Earth Map
http://www.spacemart.com/reports/Swarm_reveals_Earths_changing_magnetism_999.html[27/06/2014 15:35:17]
Russia Says GLONASS Accuracy Could Be Boosted to Two
Feet
Northrop Grumman tapped for new miniature navigation
system
European Space Agency says magnetic north is drifting southward
Free Newsletters - Space - Defense - Environment - Energy - Solar - Nuclear
..
your email address
.
.
► NASA Space ► The Earth ► NASA Earth
► Esa
European Space Agency says magnetic
north is drifting southward
by Brooks Hays
London (UPI) Jun 23, 2013
The Earth's magnetic north pole is drifting
southward towards Siberia, according to
researchers at the European Space Agency
(ESA).
As part of ESA's Swarm mission, scientists
have been mapping the planet's magnetic field
with the help three satellites. Each satellite is
equipped with several Earth-studying tools -including magnetometers, which measure the
magnetic field's strength and direction.
"I started my career in magnetometry and the
accuracy we had then in the laboratories was
disclaimer: image is for illustration purposes only
less than what we can fly in space now,"
Volker Liebig, the director of Earth observation at ESA, recently told BBC News. "So what
we have on Swarm is fantastic, but we need long time series to understand fully the
Earth's magnetic field, and we will get that from this mission."
Results from the Swarm mission suggest that not only is magnetic north on the move, but
the entire magnet field is weakening, leaving Earth potentially exposed to additional
cosmic radiation. This, however, is considered normal, with the magnet cloak likely to
regain its strength in the near future.
Analysis of ancient rocks buried deep in the Earth lead scientists to believe Earth's
http://www.spacedaily.com/reports/European_Space_Agency_says_magnetic_north_is_drifting_southward_999.html[27/06/2014 15:37:07]
Monitoring
climate change
subscribe free
European Space Agency says magnetic north is drifting southward
magnetic north and south poles switch every few million years. The latest from Swam
suggests the poles may once again be preparing to trade sides; though the flip-flop itself
takes several thousand years.
A study published in 2011 surmised that the shifting magnetic poles are affected by the
movement of Earth's tectonic plates.
Currently, Swarm satellites have only honed in on the general magnetic field generated
by Earth's molten core. But scientists expect to study more delicate magnetic fields in the
future, such as the field generated by the movement of the world's oceans.
"These initial results demonstrate the excellent performance of Swarm," said Rune
Floberghagen, ESA's Swarm Mission Manager. "With unprecedented resolution, the data
also exhibit Swarm's capability to map fine-scale features of the magnetic field."
Graphene Is The
Future
.
from space
Paris (ESA) Jun 16, 2014
How do measurements from satellites flying
above Earth provide essential information on
the effects of climate change on our planet?
Scientific and political organisations
considered the question in London. Held at
the Royal Society, the 'Space: the new view
on climate change' event focused on climate
change monitoring by satellites and the
achievements of ESA's Climate Change
Initiative. ... read more
NASA LRO's Moon As Art Collection Is Revealed
Solar photons drive water off the moon
55-year old dark side of the moon mystery solved
New evidence supporting moon formation via collision of
2 planets
outsiderclub.com/Graphene
Learn How It Will Change The
World It's All In This Free Investor
Rpt.
Curiosity celebrates one-year Martian anniversary
Aluminum-Bearing Site on Mars Draws NASA Visitor
Mars Curiosity Rover Marks First Martian Year with
Mission Successes
NASA Invites Comment on Mars 2020 Environmental
Impact Statement
Orion Parachute Test Hits No Snags
Related Links
NASA has a Problem with Unauthorized Access to it's
Technologies
Earth Observation News - Suppiliers, Technology and Application
► Esa
Recommend
Recommend
► Map Earth ► New Earth ► More Space
Share You and 21 others recommend this.21 people
recommend this. Be the first of your friends.
Elon Musk plans to take people to Mars within 10 years
Tweet
16
Moon to see first tourists by 2017, single roundtrip ticket
costs $150 mln
Chinese lunar rover alive but weak
China's Jade Rabbit moon rover 'alive but struggling'
Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.
Chinese space team survives on worm diet for 105 days
Moon rover Yutu comes closer to public
Add a comment...
✔
A Laser Message from Space
Also post on Facebook Posting as Mariangela D'Acunto (Not you?)
http://www.spacedaily.com/reports/European_Space_Agency_says_magnetic_north_is_drifting_southward_999.html[27/06/2014 15:37:07]
Comment
Comment using...
D-Day for the International Space Station
Swarm Mission Reveals Earth's Weakening Magnetic Field : Space : Nature World News
SECTIONS
Swarm Mission Reveals Earth's Weakening Magnetic Field
4 Comments
By Jenna Iacurci
Like
26
Tweet
5
0
Share
1
E-mail Text Size
Jun 24, 2014 10:13 AM EDT
The European Space Agency's (ESA) Swarm mission recently revealed Earth's weakening magnetic field, which is necessary to protect our planet from
bombarding cosmic radiation and charged particles. (Photo : ESA/DTU Space)
The European Space Agency's (ESA) Swarm mission recently revealed Earth's weakening magnetic field, which is
necessary to protect our planet from bombarding cosmic radiation and charged particles.
Launched in November 2013, the three-satellite Swarm constellation provided high-resolution insight into the complex
workings of Earth's magnetic field, using instruments such as magnetometers that measure field strength and direction.
Six months of measurements confirmed that the field is continuously weakening, with the most dramatic declines over
http://www.natureworldnews.com/articles/7731/20140624/swarm-mission-reveals-earths-weakening-magnetic-field.htm[27/06/2014 15:20:09]
Swarm Mission Reveals Earth's Weakening Magnetic Field : Space : Nature World News
the Western Hemisphere.
SHARE THIS STORY
5
26
0
Tweet
Like
Though the general trend is a fading one, other areas like the southern Indian
Ocean have actually strengthened since January. The latest measurements also
confirm the shifting of magnetic North towards Siberia.
1
Share
RELATED ARTICLES
Evenly Matched:
Magnetic Fields vs Black
Holes' Pull
Magnetic 'Fingerprint' of
the Galaxy May Help
Uncover Details of the
Big Bang
Results from the Swarm mission suggest that the magnetic cloak is once again
switching sides, where north becomes south and vice versa. Although, experts
note that this "flip-flop" could take thousands of years, BBC News reported.
Researchers believe that the magnetic field will most likely regain its strength
in the future - hopefully sooner rather than later because it is a vital shield
from charged particles streaming off of the Sun. Without it, those particles
would strip away the atmosphere, just as they have done to Mars.
These changes are based on magnetic changes stemming from the Earth's
core, but in the coming months researchers plan to investigate changes from
other sources as well, such as the mantle, crust, oceans, ionosphere and
magnetosphere, according to the ESA press release.
This will provide new insight into many natural processes, and also possibly explain why the field is weakening.
Another practical benefit is improving the reliability of satellite navigation systems which can be affected by magnetic
and electrical conditions high in the atmosphere.
"I started my career in magnetometry and the accuracy we had then in the laboratories was less than what we can fly in
space now," Professor Volker Liebig, the director of Earth observation at ESA, explained to BBC News.
"So what we have on Swarm is fantastic, but we need long time series to understand fully the Earth's magnetic field,
and we will get that from this mission," he said.
The first results were presented June 19, 2014 at the 'Third Swarm Science Meeting' in Copenhagen, Denmark.
Tags
Magnetic field , Earth , ESA
TV Das Original Clean Maxx AEG Electrolux Junior 2.0
1087 Aspirabriciole a …
Aspirabriciole a batteria …
€27,71
€24,98
http://www.natureworldnews.com/articles/7731/20140624/swarm-mission-reveals-earths-weakening-magnetic-field.htm[27/06/2014 15:20:09]
Satellite Swarm Spots North Pole Drift : Discovery News
8 Places Humans and Wild Animals Clash
Earth
Satellite Swarm Spots North Pole Drift
Jun 22, 2014 03:33 AM ET // by Jason Major
View Related Gallery »
Swarm measurements of Earth’s magnetic field from June 2014. Blue areas show where it has
weakened.
ESA/DTU Space
http://news.discovery.com/earth/satellite-swarm-spots-north-pole-drift-140622.htm[27/06/2014 15:04:26]
Satellite Swarm Spots North Pole Drift : Discovery News
Up Next
Sea Turtles From Shell to Surf: Photos
‹›
The North Pole is moving. Not the geographic axis around which Earth spins, of course, but rather its magnetic
pole, the north end of which is slowly but steadily wandering across the Arctic Ocean toward Siberia. Scientists
have known about our planet’s shifting magnetic field for a long time, since at least 1904 — and today we now
have a “Swarm” of satellites investigating its many inconsistencies from orbit.
NEWS: Satellite Swarm Maps Earth’s Magnetic Field
Launched in November 2013, ESA’s Swarm mission consists of three 9-meter satellites orbiting the planet at
altitudes of 300-530 km (186-330 miles). Their goal is to monitor Earth’s dynamic magnetic field, observing its
changes over a period of four years.
The data gathered by the Swarm satellites will help scientists better understand how our magnetic field works,
how it’s influenced by solar activity, and why large parts of it are found to be weakening.
Because the magnetic field is our planet’s first line of defense against radiation from both the sun and deep
space, understanding what makes it tick is very important.
ANALYSIS: Earth vs. Sun: Flipping Magnetic Face Off
The first high-definition measurements from Swarm have been made and what’s become apparent are
weakening regions within the core-generated magnetic field over the western hemisphere, while parts of the
southern Indian Ocean show strengthening fields.
Swarm measurements also confirm the march of the magnetic north pole toward Russia.
http://news.discovery.com/earth/satellite-swarm-spots-north-pole-drift-140622.htm[27/06/2014 15:04:26]
Satellite Swarm Spots North Pole Drift : Discovery News
“These initial results demonstrate the excellent performance of Swarm,” said Rune Floberghagen, ESA’s
Swarm Mission Manager. “With unprecedented resolution, the data also exhibit Swarm’s capability to map finescale features of the magnetic field.”
Watch a video of the Swarm compass findings below:
It’s known that Earth’s magnetic poles occasionally reverse, a process that takes several thousand years to
complete and creates a much more complex and unpredictable — but still protective — field during the interim.
And while the weakening observed by Swarm could be a sign of a polarity reversal on the way, it’s an event
that’s probably still thousands of years away.
NEWS: Earth’s Magnetic Field Made Quick Flip-Flop
Meanwhile, missions like Swarm will allow us to better understand the magnetic field we have today, in order to
understand what it will do in the future.
Read more about Earth’s moving magnetic field here, and find out what would happen during a magnetic
reversal here.
Source: ESA
100%
MIND BLOWER
DISCOVERYnewsletter
Invalid Email
Recommended for you
0%
MUST KNOW
0%
LOL
0%
GENIUS
SUBSCRIBE
SUBSCRIBE
http://news.discovery.com/earth/satellite-swarm-spots-north-pole-drift-140622.htm[27/06/2014 15:04:26]
0%
WIN
0%
REALLY?
Date : 23/06/2014
Pays : ESPAGNE
Surface : 77 %
Mots : 520
> Lire cet article sur le site web
El norte magnético se desplaza hacia Siberia
Satélites europeos confirman la tendencia: el lugar al que apuntan las brújulas no será el mismo ESA Cambios en
el campo magnético de enero a junio de 2014. Las áreas en rojo muestran las zonas donde se refuerza, y las azules
donde se debilita El primer conjunto de resultados de alta resolución a partir de tres satélites de la constelación
Swarm de la Agencia Espacial Europea (ESA) confirma una tendencia que ya se había observado en los últimos
años: el movimiento del norte magnético desde Norteamérica, donde se encuentra en la actualidad, hacia Siberia.
Este cambio, que podría acontecer en menos de medio siglo según anunciaron los geofísicos ya hace varios años,
podría suponer que las auroras boreales dejaran de aparecer en los cielos de Alaska para hacerlo en Siberia y el
norte de Europa. Donde apuntan las brújulas no será el mismo sitio. Lanzado en noviembre de 2013, Swarm
proporciona conocimientos sin precedentes en el complejo funcionamiento del campo magnético de la Tierra, que
nos protege de la radiación cósmica. Las mediciones realizadas durante los últimos seis meses confirman el
movimiento del norte magnético desde la isla de Bathurst, en Canadá, hacia Siberia. Este conocimiento es
fundamental en muchos campos, como para los marinos, que se fían de sus brújulas para dirigir la navegación. No
hay que confundir los polos magnéticos con los geográficos. Los primeros no son constantes, y cambian
ligeramente año a año. Los científicos consideran probable que estos movimientos sean oscilaciones cíclicas, por
lo que después de desplazarse a Siberia es posible que vuelva de nuevo a Canadá. Los resultados también
refuerzan la tendencia general de debilitamiento del campo magnético, con descensos más drásticos en el
hemisferio occidental. Pero en otras áreas, tales como el sur del Océano Índico, el campo magnético se ha
fortalecido desde enero. Estos cambios se basan en las señales magnéticas derivadas de núcleo de la Tierra. En los
próximos meses, los científicos analizarán los datos para desentrañar las contribuciones magnéticas de otras
fuentes, como el manto, la corteza, los océanos, la ionosfera y la magnetosfera. Esto proporcionará una nueva
visión de muchos de los procesos naturales que se producen en el interior de nuestro planeta con el clima espacial
provocado por la actividad solar. A su vez, esta información dará lugar a una mejor comprensión de por qué el
campo magnético se está debilitando. Los primeros resultados han sido presentados en el III Encuentro de
Ciencias del Swarm, en Copenhague, Dinamarca. Comentarios Imprimir Compartir En Vídeo Toda la actualidad
de Ciencia En imágenes Toda la actualidad de Ciencia Noticias relacionadas Inversión de los polos magnéticos de
la Tierra: ¿el regreso a la Edad de Piedra? Los perros prefieren defecar alineados con el campo magnético de la
Tierra ¿Puede el campo magnético de la Tierra volverse loco de repente? El escudo protector de la vida en la
Tierra El misterio de las auroras boreales de San Valentín El núcleo de la Tierra gira mucho más despacio de lo
que se creía El Sol invierte su campo magnético Así funciona el escudo magnético de la Tierra
Tous droits de reproduction réservés
Swarm reveals Earth's changing magnetism
Sign In
Top Send Feedback
Physics
Home
Nanotechnology
Astronomy & Space
Earth
Space Exploration
Astronomy & Space
Chemistry
Biology
Technology
Other Sciences
Register
Medicine & Health
June 20, 2014
Swarm reveals Earth's changing magnetism
Jun 20, 2014
Featured
Popular
Most shared
Physicist suggests speed of light
might be slower than thought
Jun 26, 2014
73
Hydrogen breakthrough could be a
game-changer for the future of car
fuels Jun 24, 2014
18
Pesticides threaten birds and bees
alike, study says Jun 24, 2014
4
Mysterious X-ray signal intrigues
astronomers Jun 24, 2014
16
Tofu ingredient could revolutionise
solar panel manufacture Jun 26,
2014
1
Earth's magnetic field. Credit: ESA/ATG Medialab
(Phys.org) —The first set of high-resolution results from ESA's three-satellite Swarm
constellation reveals the most recent changes in the magnetic field that protects our
planet.
Launched in November 2013, Swarm is
providing unprecedented insights into the
complex workings of Earth's magnetic field,
which safeguards us from the bombarding
cosmic radiation and charged particles.
Phys.org on facebook
Measurements made over the past six months
confirm the general trend of the field's
weakening, with the most dramatic declines
over the Western Hemisphere.
Relevant PhysicsForums posts
But in other areas, such as the southern Indian
Ocean, the magnetic field has strengthened
since January.
Ratio of matter to radiation density
22 hours ago
structure of galaxy and the laws behind it
Jun
25, 2014
The latest measurements also confirm the movement of magnetic North towards
Siberia.
These changes are based on the magnetic signals stemming from Earth's core. Over
the coming months, scientists will analyse the data to unravel the magnetic
contributions from other sources, namely the mantle, crust, oceans, ionosphere and
magnetosphere.
http://phys.org/news/2014-06-swarm-reveals-earth-magnetism.html[27/06/2014 15:29:49]
pulsating stars
Jun 25, 2014
interaction of three black holes
earth as a capacitor
stability of black hole
Jun 25, 2014
Jun 25, 2014
Jun 25, 2014
Swarm reveals Earth's changing magnetism
This will provide new insight into many natural processes, from those occurring deep
inside our planet to space weather triggered by solar activity. In turn, this information
will yield a better understanding of why the magnetic field is weakening.
"These initial results demonstrate the excellent performance of Swarm," said Rune
Floberghagen, ESA's Swarm Mission Manager.
June 2014 magnetic field. Credit: ESA/DTU Space
"With unprecedented resolution, the data also exhibit Swarm's capability to map finescale features of the magnetic field."
The first results were presented today at the 'Third Swarm Science Meeting' in
Copenhagen, Denmark.
Sofie Carsten Nielsen, Danish Minister of Higher Education and Science, highlighted
the Danish contribution to the mission. Swarm continues the legacy of the Danish
Ørsted satellite, which is still operational, as well as the German Champ mission.
Swarm's core instrument – the Vector Field Magnetometer – was provided by the
Technical University of Denmark.
http://phys.org/news/2014-06-swarm-reveals-earth-magnetism.html[27/06/2014 15:29:49]
More from Physics Forums - Astronomy &
Astrophysics
Swarm reveals Earth's changing magnetism
Swarm constellation over Earth. Credit: ESA/AOES Medialab
Denmark's National Space Institute, DTU Space, has a leading role – together with 10
European and Canadian research institutes – in the Swarm Satellite Constellation
Application and Research Facility, which produces advanced models based on Swarm
data describing each of the various sources of the measured field.
"I'm extremely happy to see that Swarm has materialised," said Kristian Pedersen,
Director of DTU Space.
Explore further: Swarm's precise sense of magnetism
Provided by European Space Agency
4.6 /5 (30 votes)
•
Tweet
1
reddit
http://phys.org/news/2014-06-swarm-reveals-earth-magnetism.html[27/06/2014 15:29:49]
Swarm rivela cambiamenti del campo magnetico terrestre
Contatti
Pubblicità
Chi siamo
Prima Pagina Dati geografici Rilievo BIM CAD GIS Terra e spazio Scienze della terra Territorio Servizi
Swarm rivela cambiamenti del campo magnetico terrestre
25 Giugno 2014 Renzo Carlucci
La prima serie di risultati ad alta risoluzione dalla costellazione Swarm composta da tre satelliti dell'ESA rivela i più
recenti cambiamenti nel campo magnetico che protegge il nostro pianeta. Lanciata nel novembre 2013, Swarm
fornisce informazioni senza precedenti sul complesso funzionamento del campo magnetico della Terra, che ci
protegge dal bombardamento di particelle e radiazioni cosmiche.
Le misurazioni effettuate nel corso degli ultimi sei mesi confermano la tendenza generale di indebolimento del
campo, con il calo più drammatici sopra l'emisfero occidentale. Ma in altre aree, come l'Oceano Indiano
meridionale, il campo magnetico si è rafforzato.
Le ultime misurazioni confermano anche un movimento del Nord magnetico verso la Siberia.
Questi cambiamenti sono basati sui segnali magnetici derivanti dal nucleo della Terra. Nel corso dei prossimi mesi,
gli scienziati analizzeranno i dati per svelare i contributi magnetici provenienti da altre fonti, vale a dire il mantello, la crosta, gli oceani, la ionosfera e la magnetosfera. Ciò
fornirà una nuova visione di molti processi naturali, a partire da quelli che si verificano in profondità all'interno del nostro pianeta nello spazio innescato da attività solare. A sua
volta, questa informazione produrrà una migliore comprensione del perché il campo magnetico si stia indebolendo.
"Questi primi risultati dimostrano l'ottima performance di Swarm", ha dichiarato Rune Floberghagen, Swarm Mission Manager di ESA. "Con una risoluzione senza precedenti, i
dati mostrano anche la capacità di Swarm di mappare caratteristiche del campo magnetico ad alta risoluzione."
I primi risultati sono stati presentati alla terza Swarm Science Meeting a Copenhagen in Danimarca.
Sofie Carsten Nielsen, ministro danese dell'Istruzione superiore e della Scienza, ha evidenziato il particolare contributo danese alla missione. Swarm continua l'eredità del
http://www.rivistageomedia.it/20140625641/terra-e-spazio/swarm-rivela-cambiamenti-del-campo-magnetico-terrestre.html[27/06/2014 15:32:02]
Swarm rivela cambiamenti del campo magnetico terrestre
satellite danese Ørsted, che è ancora operativo, così come la missione Champ tedesca. Lo strumento principale di Swarm - il Vector Field Magnetometer - è stato fornito dalla
Technical University of Denmark.
(Fonte ESA)
Copia qui lo "short link" a questo articolo
www.geoforall.it/a6h9
Letto 315 volte
Vota questo articolo
Ultima modifica il Mercoledì, 25 Giugno 2014 08:41
(1 Voto)
Etichettato sotto swarm satellite campo magnetico terra
dimensione font
Tweet
Mi piace Piace a una persona. Di' c
piace anche a te, prima d
i tuoi amici.
6
Condividi
http://www.rivistageomedia.it/20140625641/terra-e-spazio/swarm-rivela-cambiamenti-del-campo-magnetico-terrestre.html[27/06/2014 15:32:02]
Stampa
Email
European Space Agency says magnetic north is drifting southward - UPI.com
TERME DI AGNANO,
INGRESSO PER 2
SPA PER 2 DA SALUS PER
AQUAM
€ 60,00 68%
Risparmia fino
al 90%
€ 19,00
€ 60,00 50%
€ 29,90
COMPRA!
COMPRA!
SCIENCE NEWS
HOME / SCIENCE NEWS / MAGNETIC NORTH IS DRIFTING SOUTH TOWARDS SIBERIA
Magnetic north is drifting south
towards Siberia
"These initial results demonstrate the excellent performance of Swarm," said
Rune Floberghagen.
By Brooks Hays | June 23, 2014 at 6:20 PM | 4 Comments
39
12
0
4
Feedback
Map of Earth's magnetic field. (ESA/Swarm)
LONDON, June 23 (UPI) --The
Earth's magnetic north pole is
drifting southward towards Siberia,
according to researchers at the
European Space Agency (ESA).
As part of ESA's Swarm mission,
scientists have been mapping the
planet's magnetic field with the help
three satellites. Each satellite is
equipped with several Earthstudying tools -- including
magnetometers, which measure the
magnetic field's strength and
direction.
"I started my career in
magnetometry and the accuracy we
had then in the laboratories was less
http://www.upi.com/Science_News/2014/06/23/Magnetic-north-is-drifting-south-towards-Siberia/3531403559377/[27/06/2014 15:41:44]
x
European Space Agency says magnetic north is drifting southward - UPI.com
than what we can fly in space
now," Volker Liebig, the director of
Earth observation at ESA, recently
told BBC News. "So what we have
on Swarm is fantastic, but we need long time series to understand fully the
Earth's magnetic field, and we will get that from this mission."
Results from the Swarm mission suggest that not only is magnetic north on the
move, but the entire magnet field is weakening, leaving Earth potentially
exposed to additional cosmic radiation. This, however, is considered normal,
with the magnet cloak likely to regain its strength in the near future.
Analysis of ancient rocks buried deep in the Earth lead scientists to believe
Earth's magnetic north and south poles switch every few million years. The
latest from Swam suggests the poles may once again be preparing to trade
sides; though the flip-flop itself takes several thousand years.
A study published in 2011 surmised that the shifting magnetic poles are
affected by the movement of Earth's tectonic plates.
Currently, Swarm satellites have only honed in on the general magnetic field
generated by Earth's molten core. But scientists expect to study more delicate
magnetic fields in the future, such as the field generated by the movement of
the world's oceans.
"These initial results demonstrate the excellent performance of Swarm," said
Rune Floberghagen, ESA's Swarm Mission Manager. "With unprecedented
resolution, the data also exhibit Swarm's capability to map fine-scale features of
the magnetic field."
© 2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly
prohibited without UPI's prior written consent.
Order reprints
Previous Story
Next Story
May 2014 was Earth's warmest May
on record, NOAA says
YOU MAY
LIKE
YOU MAY
LIKE
UNESCO to send experts to Haiti to
investigate possible Santa Maria
shipwreck
Sponsored Content by Taboola
Sponsored Content by Taboola
http://www.upi.com/Science_News/2014/06/23/Magnetic-north-is-drifting-south-towards-Siberia/3531403559377/[27/06/2014 15:41:44]
Satélites de la misión Swarm confirman el debilitamiento del campo magnético – Tecnología de los satélites – Noticias, última hora, vídeos y fotos de Tecnología de los satélites en lainformacion.com
AVISO: Utilizamos cookies propias y de terceros para mejorar nuestros servicios y mostrarle publicidad relacionada con sus preferencias mediante el
análisis de sus hábitos de navegación. Si continua navegando, consideramos que acepta su uso. Puede cambiar la configuración de su navegador u
obtener más información aquí.
Like
251k
Secciones
viernes, 27/06/14 - 15: 40 h
Economía
Bolsa
Humor
Observatorio Económico
Vídeo
Fotogalerías
Fotos
Tipos
Gráficos
Mis finanzas
Blogs
365K seguidores
Busca en miles de textos, vídeos y fotos
'El Intermedio' cierra por vacaciones
lainformacion.com
Seguir
Huelga
Lo último
Lo más
Vivienda
Temas
Tiempo
Microsiervos
Practicopedia
TECNOLOGÍA DE LOS SATÉLITES
Satélites de la misión Swarm confirman el
debilitamiento del campo magnético
lainformacion.com
[
jueves, 19/06/14 - 15:55
0
]
Los primeros resultados de la misión Swarm, el grupo de tres satélites lanzados en noviembre por la
Agencia Espacial Europea (ESA), confirman la tendencia general sobre el debilitamiento del campo
magnético terrestre.
Temas
2
0
2
0
Agencia Espacial Europea Ciencia y tecnología Copenhague
Frascati Historia Investigación médica Italia Mundo Rusia
Suecia Tecnología de los satélites
El
Gobierno
reduce
un 3,2%
el techo
de gasto
para
2015,
hasta
129.060
millones
de euros
Castro dice que Fiscalía
tendría que querellarse
contra él por
prevaricación
Copenhague, 19 jun.- Los primeros resultados de la misión Swarm, el
grupo de tres satélites lanzados en noviembre por la Agencia Espacial
Europea (ESA), confirman la tendencia general sobre el debilitamiento
del campo magnético terrestre.
Según aseguraron hoy los responsables del proyecto en una conferencia
organizada por la ESA en Copenhague, el debilitamiento es mayor en el
hemisferio occidental, aunque en otras áreas como el Índico sur se ha
producido el fenómeno contrario.
Las medidas registradas por Swarm desde enero pasado confirman
también el desplazamiento progresivo del Polo Norte magnético hacia
Siberia.
Los jueces se levantan
contra Horrach por su
crítico recurso hacia
Castro
La batalla por la
presidencia de la
Comisión pone sobre la
mesa supuestos
problemas con el
alcohol de Juncker
Los Obispos denuncian
que la Religión con la
Lomce reduce a la mitad
las horas lectivas que
con el PSOE
Los expertos reunidos en Copenhague estimaron que en un plazo de
entre 5.000 y 10.000 años habrá una inversión en el campo magnético,
un fenómeno que se ha producido varias veces antes en la historia del
planeta, la última hace 780.000 años.
Nils Olsen, uno de los científicos al frente del proyecto, calificó de
"excelentes" los datos preliminares aportados por la misión, aunque
resaltó a Efe que ha pasado "demasiado poco tiempo" para sacar
Lo más visto en Economía
hoy
esta semana
este mes
http://noticias.lainformacion.com/economia-negocios-y-finanzas/tecnologia-de-los-satelites/satelites-de-la-mision-swarm-confirman-el-debilitamiento-del-campo-magnetico_wMV19BrqQlPdPeUYCfWpr7/[27/06/2014 15:45:11]
Satélites de la misión Swarm confirman el debilitamiento del campo magnético – Tecnología de los satélites – Noticias, última hora, vídeos y fotos de Tecnología de los satélites en lainformacion.com
conclusiones más amplias sobre las mediciones de la operación, que
durará cuatro años, y sus aplicaciones.
1
España empieza a generar empleo y ya
hay siete regiones con más oferta que
demanda
2
Las leches de Hacendado y Carrefour
destacan por su buena relación calidad
precio, según la OCU
3
Los españoles trabajan más que
franceses, daneses y suecos, según un
estudio
La misión Swarm despegó del cosmódromo de Plesetsk (Rusia) en
noviembre para estudiar los procesos en el interior de la Tierra,
comprender mejor su campo magnético y por qué se está debilitando
esta burbuja que protege el planeta de la radiación cósmica y las
partículas cargadas que llegan a través del viento solar.
4
COMUNICADO: La comunidad de compras
establece nuevos estándares con la
Lyoness MasterCard® prepago
5
Tres respuestas básicas para entender el
futuro de las pensiones
La misión, que usa tecnología europea y canadiense, tiene también como
objetivo aplicaciones prácticas, como mejorar la precisión de los
sistemas de navegación por satélite y la predicción de terremotos o
hacer más eficaz la extracción de recursos naturales.
6
Red Hat adquiereeNovance, líder en
servicios de integración de OpenStack
7
Qué son las Sicav y qué se oculta tras
ellas
Los datos científicos -abiertos a toda la comunidad investigadora- se
descargarán a través de la estación de seguimiento de Kiruna (Suecia) y
se procesarán, distribuirán y archivarán en el Centro para la Observación
de la Tierra de la ESA en Frascati (Italia).
8
¿Buscas empleo en el extranjero? Éstos
son los países que más oportunidades te
ofrecen
9
Isla española quiere ser la primera del
mundo autosuficiente en electricidad
10
Administración de Empresas e Ingeniería
Industrial los estudios con mayor oferta de
empleo
Las alteraciones detectadas en los primeros resultados de Swarm están
basadas en señales magnéticas del núcleo terrestre.
Para las próximas observaciones se incluirán también otras fuentes de
medición como el manto, la corteza, los océanos, la ionosfera y la
magnetosfera, lo que permitirá un mayor conocimiento de diversos
procesos naturales.
(Agencia EFE)
También te puede interesar
más…
Doña Letizia no podría solicitar el divorcio
La nueva condición de inviolabilidad que implica la llegada al trono de Felipe VI tendrá también
consecuencias para la reina Letizia. En caso de que decidiese divorciarse e interponer una
demanda,... más
Pérdida de peso que asusta médicos
Científicos de Boston han descubierto un método para adelgazar chocante. 1 método extraño y
ahora tiene 12kg menos... más
La evolución física de Doña Letizia: del telediario a Reina de España
Doña Letizia se ha convertido este jueves en Reina de España, más
Los amigos de la Infanta Cristina confiesan que se siente psicológicamente...
La revista Vanity Fair ha entrevistado al fiscal que lleva el caso, y a dos de los abogados del
bufete de Miquel Roca, Pau Molins y Jesús-María Silva, que lleva la defensa de la Infanta. Muy
seguros... más
David Villa supera a Maradona como máximo goleador en los mundiales
La despedida de David Villa de la selección no fue la soñada en lo colectivo, aunque siempre
recordará que dejó la camis... más
powered by plista Anúnciese Aquí
Notificar Error
Enviar
1
La indemnización por despido tributa
desde el viernes
2
Los Técnicos de Hacienda creen que la
reforma fiscal beneficia a los más ricos y la
lucha contra el fraude es insuficiente
3
España empieza a generar empleo y ya
hay siete regiones con más oferta que
demanda
4
Las leches de Hacendado y Carrefour
destacan por su buena relación calidad
precio, según la OCU
5
Así te afecta la reforma fiscal de Montoro
6
Cómo diferenciar burka, chador, niqab y
otras prendas musulmanas
7
El Ayuntamiento destaca que el ascenso
del Córdoba CF a Primera tendrá
"múltiples efectos beneficiosos"
8
¿Buscas empleo en el extranjero? Éstos
son los países que más oportunidades te
ofrecen
9
La junta de Pescanova se celebrará el 1
de julio en segunda convocatoria
10
El mileurismo ya no es cosa de jóvenes y
el sueldo más habitual es de 15.500 euros
Leer más tarde
más…
Añade un comentario...
✔
1
Rajoy anuncia que la próxima privatización
será el transporte ferroviario de pasajeros
2
Cambio social bajo modelo de empresa,
reto de colombiano reconocido en Forbes
3
El libro que devoran los economistas: 'Por
qué fracasan los países'
4
¿Buscas empleo en el extranjero? Éstos
son los países que más oportunidades te
ofrecen
5
Así te afecta la reforma fiscal de Montoro
Publicar también en Facebook Publicar como Mariangela D'Acunto (¿No eres tú?)
Plug -in social de Facebook
Comentar
Comentar
http://noticias.lainformacion.com/economia-negocios-y-finanzas/tecnologia-de-los-satelites/satelites-de-la-mision-swarm-confirman-el-debilitamiento-del-campo-magnetico_wMV19BrqQlPdPeUYCfWpr7/[27/06/2014 15:45:11]
Modifications spectaculaires du champ magnétique terrestre
Recherchez sur tout Techno-Science.net
Rechercher
Vendredi 27 Juin 2014
Accueil
News
Dossiers
Archives
Boutique
Librairie
Glossaire
A propos
Techno-Science.net : Suivez l'actualité des sciences et des technologies, découvrez, commentez
Forum 667
Catégories
Techniques
Aéronautique
Transports
Espace
Energie
Multimédia
Architecture
Sciences
Mathématiques
Physique
Astrophysique
Astronomie
Vie et Terre
Encore plus...
Autres sujets
Rétro
Techno-Science.net
Espace Membre
Anti-spam
Astronomie
Posté par Publication le Vendredi 20/06/2014 à 12:55
Le point sur...
Satellite naturel
Étoile
Lumière
Couche d'ozone
Modifications spectaculaires du champ magnétique terrestre
modification champ magnétique 5 commentaires
Like
330
mesure champ magnétique Tweeter
100
14
Les premiers résultats à haute résolution recueillis à partir des trois satellites de la
constellation Swarm de l'ESA, révèlent les changements les plus récents dans le champ
magnétique qui protège notre planète.
Lancé en Novembre 2013, Essaim fournit un aperçu sans précédent dans les rouages
complexes du champ magnétique de la Terre, qui nous protège du rayonnement cosmique
et bombardant des particules chargées.
Partenaires
Organismes
CEA
CNES
CNRS
INSU-CNRS
ESA
Observatoire Paris
Sites Web
Analyse Bourse
Sur la Toile
HD-Numérique
Allons-Sortir.fr
Photo Mystérieuse
Que représente
cette image ?
Juin 2014 champ magnétique. Illustration ESA
Les mesures effectuées au cours des six derniers mois confirment la tendance générale de
l'affaiblissement du champ, avec les baisses les plus spectaculaires dans l'hémisphère
occidental. Mais dans d'autres domaines, tels que l'océan Indien, le champ magnétique
s'est renforcé depuis Janvier.
Les dernières mesures confirment également le déplacement du Nord magnétique vers la
Sibérie. Ces changements sont basés sur les signaux magnétiques provenant du noyau
de la Terre. Au cours des prochains mois, les scientifiques vont analyser les données et
comparer avec les études provenant d'autres sources, à savoir le manteau, croûte,
océans, ionosphère et magnétosphère.
Cela fournira un nouvel éclairage sur de nombreux processus naturels, de ceux qui se
produisent au fond de notre planète à la météorologie spatiale déclenchée par l'activité
solaire. À son tour, cette information donnera une meilleure compréhension des raisons
pour lesquelles le champ magnétique s'affaiblit.
http://www.techno-science.net/?onglet=news&news=12899[27/06/2014 15:49:18]
Modifications spectaculaires du champ magnétique terrestre
Voir aussi
Titan pourrait être antérieur à Saturne
Modifications spectaculaires du champ
magnétique terrestre
Une avancée majeure pour le télescope géant EELT
Nouvelle avancée pour la recherche de la vie
extraterrestre
Trois éruptions solaires classées X en deux jours
Le champ magnétique de la Terre. Illustration ESA
"Ces premiers résultats démontrent l'excellente performance de Swarm", a déclaré Rune
Floberghagen, directeur Swarm, mission de l'ESA. "Avec une résolution sans précédent,
les données montrent également la capacité de Swann à cartographier les caractéristiques
à petite échelle du champ magnétique."
Les premiers résultats ont été présentés à la réunion scientifique Swarm à Copenhague,
au Danemark.
Sofie Carsten Nielsen, ministre danois de l'Enseignement supérieur et de la Science, a
souligné la contribution danoise à la mission. Essaim qui poursuit la tradition du satellite
danois Ørsted, qui est toujours opérationnel, ainsi que la mission Champ allemande.
L'instrument de base de Swarm, le magnétomètre, a été fourni par l'Université technique
du Danemark.
Essaim. Illustration ESA
L'Institut National Space du Danemark, DTU espace, a un rôle de premier plan avec 10
instituts de recherche européens et canadiens dans la facilité Swarm application
Constellation satellite et de la recherche, qui produit des modèles de pointe basés sur des
données Swarm décrivant chacune des différentes sources du champ mesuré.
http://www.techno-science.net/?onglet=news&news=12899[27/06/2014 15:49:18]
Le rôle inattendu des galaxies naines dans la
formation des étoiles
Deux télescopes spatiaux canadiens
exceptionnellement petits et économiques lancés
Fin de la mission CoRot
Swarm reveals Earth's changing magnetism
Space Newsfeed
comprehensive free satellite, astronomy and space industry news
Space Newsfeed Front Page
Latest News
Register for Free News Emails
RSS Feeds
Advertise on Space Newsfeed
NASA ESA Space Patches
space-boosters.co.uk
From NASA space patches and pins to space,food,postcards,photos & more
Swarm reveals Earth's changing magnetism
(19 June 2014) The first set of high-resolution results from ESA’s three-satellite
Swarm constellation reveals the most recent changes in the magnetic field that
protects our planet.
http://www.spacenewsfeed.co.uk/index.php/news/1294-swarm-reveals-earth-s-changing-magnetism[27/06/2014 15:51:04]
Swarm reveals Earth's changing magnetism
Changes in Earth’s magnetic field from January to June 2014 as measured by the Swarm
constellation of satellites. These changes are based on the magnetic signals that stem
from Earth’s core. Shades of red represent areas of strengthening, while blues show
areas of weakening over the 6-month period. (courtesy: ESA/DTU Space)
Launched in November 2013, Swarm is providing unprecedented insights into the
complex workings of Earth’s magnetic field, which safeguards us from the bombarding
cosmic radiation and charged particles.
http://www.spacenewsfeed.co.uk/index.php/news/1294-swarm-reveals-earth-s-changing-magnetism[27/06/2014 15:51:04]
Swarm reveals Earth's changing magnetism
‘Snapshot’ of the main magnetic field at Earth’s surface as of June 2014 based on
Swarm data. The measurements are dominated by the magnetic contribution from
Earth’s core (about 95%) while the contributions from other sources (the mantle, crust,
oceans, ionosphere and magnetosphere) make up the rest. Red represents areas where
the magnetic field is stronger, while blues show areas where it is weaker. (courtesy:
ESA/DTU Space)
Measurements made over the past six months confirm the general trend of the field’s
weakening, with the most dramatic declines over the Western Hemisphere.
But in other areas, such as the southern Indian Ocean, the magnetic field has
strengthened since January.
The latest measurements also confirm the movement of magnetic North towards Siberia.
These changes are based on the magnetic signals stemming from Earth’s core. Over the
coming months, scientists will analyse the data to unravel the magnetic contributions
from other sources, namely the mantle, crust, oceans, ionosphere and magnetosphere.
This will provide new insight into many natural processes, from those occurring deep
inside our planet to space weather triggered by solar activity. In turn, this information
will yield a better understanding of why the magnetic field is weakening.
http://www.spacenewsfeed.co.uk/index.php/news/1294-swarm-reveals-earth-s-changing-magnetism[27/06/2014 15:51:04]
Swarm reveals Earth's changing magnetism
The magnetic field and electric currents near Earth generate complex forces that have
immeasurable impact on our everyday lives. Although we know that the magnetic field
originates from several sources, exactly how it is generated and why it changes is not
yet fully understood. ESA’s Swarm mission will help untangle the complexities of the
field. (courtesy: ESA/ATG Medialab)
These initial results demonstrate the excellent performance of Swarm,” said Rune
Floberghagen, ESA’s Swarm Mission Manager.
“With unprecedented resolution, the data also exhibit Swarm’s capability to map finescale features of the magnetic field.”
The first results were presented today at the ‘Third Swarm Science Meeting’ in
Copenhagen, Denmark.
Sofie Carsten Nielsen, Danish Minister of Higher Education and Science, highlighted the
Danish contribution to the mission. Swarm continues the legacy of the Danish Ørsted
satellite, which is still operational, as well as the German Champ mission. Swarm’s core
instrument – the Vector Field Magnetometer – was provided by the Technical University
of Denmark.
http://www.spacenewsfeed.co.uk/index.php/news/1294-swarm-reveals-earth-s-changing-magnetism[27/06/2014 15:51:04]
Swarm reveals Earth's changing magnetism
Swarm is ESA's first Earth observation constellation of satellites. The three identical
satellites are launched together on one rocket. Two satellites orbit almost side-by-side
at the same altitude – initially at about 460 km, descending to around 300 km over the
lifetime of the mission. The third satellite is in a higher orbit of 530 km and at a slightly
different inclination. The satellites’ orbits drift, resulting in the upper satellite crossing
the path of the lower two at an angle of 90° in the third year of operations. The
different orbits along with satellites’ various instruments optimise the sampling in space
and time, distinguishing between the effects of different sources and strengths of
magnetism. (courtesy: ESA/AOES Medialab)
Denmark’s National Space Institute, DTU Space, has a leading role – together with 10
European and Canadian research institutes – in the Swarm Satellite Constellation
Application and Research Facility, which produces advanced models based on Swarm
data describing each of the various sources of the measured field.
“I’m extremely happy to see that Swarm has materialised,” said Kristian Pedersen,
Director of DTU Space.
(source: ESA)
http://www.spacenewsfeed.co.uk/index.php/news/1294-swarm-reveals-earth-s-changing-magnetism[27/06/2014 15:51:04]
Campo magnético da Terra está a enfraquecer - PÚBLICO
Lisboa
CIÊNCIA
23°C
Campo magnético da Terra está a enfraquecer
PÚBLICO
26/06/2014 - 18:32
A azul, regiões onde o campo magnético está a enfraquecer; a vermelho, as zonas onde está a reforçar-se ESA

Recommend
http://www.publico.pt/ciencia/noticia/campo-magnetico-da-terra-a-enfraquecer-1660653[27/06/2014 15:52:23]


 4

Tweetar
Share
2k

0
16
Campo magnético da Terra está a enfraquecer - PÚBLICO
TÓPICOS 
Agência Espacial Europeia
Os primeiros resultados recolhidos pelos três satélites Swarm da Agência Espacial Europeia (ESA), a funcionar em conjunto no espaço desde há seis meses, confirmam que,
de um modo geral, o campo magnético da Terra, que protege o planeta da radiação cósmica e das partículas carregadas, está a enfraquecer, anunciou a ESA em comunicado.
O declínio mais acentuado verifica-se ao longo do hemisfério ocidental. Contudo, noutras áreas, como a sul do oceano Índico, o campo magnético tem vindo a reforçar-se
desde Janeiro. As medições também confirmam a deslocação do norte magnético para sul, em direcção à Sibéria. Ao longo dos próximos meses, os cientistas irão analisar os
dados para tentar perceber as razões desse enfraquecimento.
Notícia corrigida dia 27/06/2014 às 13h15.


Recommend

 4

Tweetar
Share

0
16
2k
RECOMENDADOS
Esther foi retocada com Photoshop mais de 25 vezes. E ficou bonita?
Um intruso convidado na Agência Espacial Europeia
Cria de urso eutanasiada na Suíça vai servir para ensinar que a natureza é
cruel
Professores dizem que exame de Matemática A "é injusto" e vai "cortar as
pernas" aos alunos
COMENTÁRIOS
NOS BLOGUES
http://www.publico.pt/ciencia/noticia/campo-magnetico-da-terra-a-enfraquecer-1660653[27/06/2014 15:52:23]