1. Electrostatic and electromagnetic emissions near the plasmasphere. A case event: 27 May 2003
- Author
-
El-Lemdani Mazouz, F., Grimald, S., Rauch, Jean-Louis, Décréau, Pierrette, Bozan, G., Le Rouzic, G., Suraud, X., Vallières, X., Trotignon, Jean-Gabriel, Canu, P., Darrouzet, F., Boardsen, S., Cardon, Catherine, Laboratoire de physique et chimie de l'environnement (LPCE), Université d'Orléans (UO)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB), GSFC Cryospheric Sciences Laboratory, and NASA Goddard Space Flight Center (GSFC)
- Subjects
[SDU] Sciences of the Universe [physics] ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,[SDU]Sciences of the Universe [physics] ,[SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph] - Abstract
International audience; We present in this paper a review of electric emissions in the high frequency range (2-80 kHz) by the CLUSTER constellation crossing the outer plasmasphere at its perigee. During the considered event, dated 27th May 2003, the constellation separation was large (5000 km) and the geomagnetic activity high (Kp - 4 - 5). A large panel of natural emissions are observed, in particular non thermal continuum emissions (NTC) and electrostatic emissions related to fCe, where fce is the local electron gyrofrequency. Intense NTC emissions visible in the northern hemisphere can be related with simultaneous observations from the IMAGE satellite, informing about large scale beaming properties. We present details about equatorial emissions at (n+ 1/2) fce and emissions at (n+1.1) fce observed at higher latitude. Lastly, intense emissions near the local plasma frequency fp are observed within large scale density irregularities.
- Published
- 2006