| |
Records |
Links |
|
Author |
W. Lyatsky, G. V. Khanazov, S. Lyatskaya, D. Di Mauro, S. Lepidi, L. Cafarella, A. Chambodut, J.-J. Schott |
|
| |
Title |
Polar magnetic indices : a new key to correlate magnetic variations in the Earth's hemisphere |
Type |
Conference - International - Poster |
| |
Year |
2009 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
IAGA 11th Scientific Assembly, 23-30 August 2009 |
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
We have presented here the results of a statistical study of two polar magnetic indices, computed from data from two near-pole geomagnetic observatories: Thule in the northern hemisphere and new, Concordia (Dome C) observatory near the southern geomagnetic pole in Antarctica. We found that:
The northern PMn and southern PMs polar magnetic indices show a good correlation with the solar wind/IMF parameters (the average correlation coefficient is ~ 0.87). Meanwhile, the southern PMs index shows a significantly better correlation than the northern PMn index, which demonstrates that the new Concordia observatory may play an important role in improving the Space Weather prediction.
The obtained results also show a high correlation between these two polar magnetic indices: the average correlation coefficient for this period was ~0.9 while for equinoctial months it increased up to 0.94-0.96.
Using the polar magnetic indices in two hemispheres may also significantly improve the prediction of other parameters, including the auroral electrojet AL index which shows substorm activity. Using the polar magnetic indices in two hemispheres allows us to predict the auroral electrojet AL index with a very high reliability (the correlation coefficient between predicted and actual AL indices is ~0.9, while for the equinoctial months the correlation coefficient was ~0.92).
The results of this study show an important role which is played by the magnetic disturbances in both polar ionospheres in developing the global magnetic activity, and the necessity to account for the magnetic disturbances in both ionospheres for improving the Space Weather prediction in the Geospace environment. |
|
| |
Programme  |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5745 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
A. Chambodut, D. Di Mauro, J.-J. Schott, L. Cafarella, S. Lepidi |
|
| |
Title |
The permanent magnetic observatory of Concordia station (Dome C, Antarctica) |
Type |
Conference - International - Poster |
| |
Year |
2009 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
IAGA 11th Scientific Assembly, 23-30 August 2009 |
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5746 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
A. Chambodut, D. Di Mauro,P. Bordais, L. Agnoletto, P. Di Felice |
|
| |
Title |
Three years continuous record of the Earth's magnetic field at Concordia station (DomeC, Antarctica) |
Type |
Journal Article |
| |
Year |
2009 |
Publication |
ANNALS OF GEOPHYSICS |
Abbreviated Journal |
|
|
| |
Volume |
52-1 |
Issue |
|
Pages |
15-26 |
|
| |
Keywords |
|
|
| |
Abstract |
The magnetic observatory deployed at DomeC, Antarctica, in the French-Italian base known as Concordia base, is now permanently running for more than three years. This paper focuses on these long-term results which are more relevant for an observatory intended to provide absolute values of the field. The problems which came up in the light of this fairly long record are discussed and solutions suggested in order to upgrade the observatory to the standards of an absolute one (i.e. Intermagnet standards). |
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1593-5213 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5747 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
D. Di Mauro, A. Chambodut, L. Cafarella, S. Lepidi, J.-J. Schott, J.-F. Vanaecker, J.Zaccaria |
|
| |
Title |
Permanent geomagnetic field observations at Concordia station, Dome C, Antarctica |
Type |
Conference - International - Communication |
| |
Year |
2009 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
IAGA 11th Scientific Assembly, 23-30 August 2009 |
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5748 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
A. Chambodut, J.-J. Schott, D. Di Mauro, L. Cafarella and S. Lepidi |
|
| |
Title |
Inside the Southern Polar Cap: Geomagnetic Field Observations at Concordia Station (DomeC, Antarctica) |
Type |
Conference - International - Poster |
| |
Year |
2009 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
ESA's Second Swarm International Science Meeting, |
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5749 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
|
|
| |
Title |
New acquisition systems in French austral magnetic observatories |
Type |
Conference - International - Poster |
| |
Year |
2007 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
5854 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
J.-J. Schott, A. CHAMBODUT |
|
| |
Title |
A MODELLING EXAMPLE OF ANTHROPOGENIC MAGNETIC DISTURBANCES : TRAFFIC ON A ROAD |
Type |
Conference - International - Poster |
| |
Year |
2010 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
XIVth IAGA WORKSHOP ON GEOMAGNETIC OBSERVATORY INSTRUMENTS, DATA ACQUISITION AND PROCESSING; September 13 – 23, 2010; Changchun, Jilin Province, China.
The magnetic measurements at the Welschbruch Geophysical Station in Vosges (France) are disturbed by the passes of vehicles on the nearby road. The signing of these disturbances is clearly identified and reproducible. The vehicles are assumed to produce a dipolar field. Tests have shown that the magnetic dipole is not simply due to induced magnetization and hence has an unknown orientation, not parallel to the ambient magnetic field. A first model, parameterized by the time of passage, speed and dipole components, provides already a fairly good prediction of the observed signal. This prediction may be improved if a small amount of induction field, produced by the time varying vehicle disturbance, is introduced in the model, by means of an empirical induction matrix. |
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
659 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
D. Di Mauro, L. Cafarella, A. Chambodut, S. Lepidi |
|
| |
Title |
EARTH'S MAGNETISM AT THE SOUTH POLE: A VIEW FROM INLAND AND COASTAL STATIONS AND TEMPORARY INSTALLATIONS |
Type |
Conference - International - Communication |
| |
Year |
2010 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
Bachelor's thesis |
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
1166 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
A. Chambodut |
|
| |
Title |
Encyclopedia of solid Earth Geophysics : section “Geomagnetic Field, IGRF – International Geomagnetic Reference Field” |
Type |
Book Chapter |
| |
Year |
2011 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
|
|
| |
Keywords |
|
|
| |
Abstract |
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
Springer Netherlands |
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
978-90-481-8701-0 |
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
1535 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Menvielle Michel, Musmann Gnter, Kuhnke Falko, Berthelier Jean-Jacques, Glassmeier Karl-Heinz, Mandea Mioara H, Motschmann Uwe, Pajunpaa Kari, Pinon Jean-Louis, Primdahl Fritz, Szarka Laszlo, |
|
| |
Title |
Contribution of magnetic measurements onboard NetLander to Mars exploration
|
Type |
Journal Article |
| |
Year |
2000 |
Publication |
Planetary and Space Science |
Abbreviated Journal |
|
|
| |
Volume |
48 |
Issue |
12-14 |
Pages |
1231 -1247 |
|
| |
Keywords |
|
|
| |
Abstract |
In the frame of the international cooperation for Mars exploration, a set of 4 NetLanders developed by an European consortium is expected to land on the planet during the forthcoming years. Among other instruments, the geophysical package of each lander will include a magnetometer. The different possible contributions of magnetic measurements onboard the NetLander stations are presented. Intrinsic planetary field and remanent magnetisation investigations by means of magnetometers onboard a network of landers are first considered, and the information that can be thus derived on the Martian core dynamo and surface rocks, soil, and dust is discussed. The contribution of permanent recording of the magnetic transient variations at a network of surface stations is then discussed. The transient variations of the magnetic field at the surface of a planet has a primary external source, the interaction between the environment of the planet and solar radiation, and a secondary source, the electric currents induced in the conductive planet. The continuous recording of the time variations of the magnetic field at the surface of Mars by means of three component magnetometers installed onboard NetLander stations will therefore allow study of both the internal structure of Mars and dynamics of its ionised environment. The expected characteristics of transient magnetic variations, and their relation with plasma flow and current in the Mars ionised environment are discussed. The use of the network magnetic data to probe the internal structure of Mars is also considered. The used techniques are presented, and the information that can be thus obtained on the Mars permafrost, lithosphere and mantle structure illustrated by numerical simulations. Finally, the specifications of the instrument allowing to achieve these objectives are discussed, and the instrument described.
|
|
| |
Programme |
905 |
|
| |
Campaign |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Summary Language |
|
Original Title |
|
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0032-0633 |
ISBN |
|
Medium |
|
|
| |
Area |
|
Expedition |
|
Conference |
|
|
| |
Notes |
|
Approved |
yes |
|
| |
Call Number |
|
Serial |
1586 |
|
| Permanent link to this record |
