 |
| Titel |
Simple model for post seismic ionospheric disturbances above an earthquake epicentre and along connecting magnetic field lines |
| VerfasserIn |
R. Marchand, J. J. Berthelier |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 8, no. 6 ; Nr. 8, no. 6 (2008-12-08), S.1341-1347 |
| Datensatznummer |
250005905
|
| Publikation (Nr.) |
 copernicus.org/nhess-8-1341-2008.pdf |
|
|
|
|
|
| Zusammenfassung |
| The detection of ionospheric disturbances associated with seismic activity is
one of the main objectives of the DEMETER micro-satellite. Its scientific
payload provides a comprehensive set of electron and ion measurements. The
present work describes a simple model of post-seismic disturbances in the
ionosphere above the epicentre. Following a major seism, the neutral
atmosphere is assumed to be subject to an acoustic pulse propagating upward,
to high altitudes. By coupling this perturbation to the two-dimensional
ionospheric model SAMI2 it is then possible to calculate the variations in a
number of plasma parameters in the plume region and along connecting magnetic
field lines, for an event of representative magnitude. The feasibility of
identifying the signature of seismic events from satellite observations is
then assessed in view of representative DEMETER measurements and of their
natural variability. |
| |
|
| Teil von |
|
|
|
|
|
|
|