TY - GEN
T1 - The electron density around the earth, a high level product of the CLUSTER/WHISPER relaxation sounder
AU - Trotignon, J. G.
AU - Décréau, P. M.E.
AU - Rauch, J. L.
AU - Suraud, X.
AU - Grimald, S.
AU - El-Lemdani Mazouz, F.
AU - Vallières, X.
AU - Canu, P.
AU - Darrouzet, F.
AU - Masson, A.
PY - 2006/1/1
Y1 - 2006/1/1
N2 - The WHISPER (Waves of High frequency and Sounder for Probing of Electron density by Relaxation) aboard the four CLUSTER satellites performs high frequency electric field measurements in the Earth's space environment, from the solar wind down to the plasmasphere. In active mode, the WHISPER behaves like a topside sounder. It provides, via the identification of resonances that are triggered at characteristic frequencies of the encountered ionised medium, reliable and accurate determination of the total density of thermal electrons. In passive mode, when the transmitter is switched off, it becomes a classical wave receiver. The 2 to 80 kHz frequency range of the electric component of natural waves is therefore monitored. The objective of the presentation is to show that the thermal electron density may be derived from the active and/or passive measurements of the WHISPER all along the CLUSTER trajectory, and almost everywhere, with a good accuracy compared with other estimates.
AB - The WHISPER (Waves of High frequency and Sounder for Probing of Electron density by Relaxation) aboard the four CLUSTER satellites performs high frequency electric field measurements in the Earth's space environment, from the solar wind down to the plasmasphere. In active mode, the WHISPER behaves like a topside sounder. It provides, via the identification of resonances that are triggered at characteristic frequencies of the encountered ionised medium, reliable and accurate determination of the total density of thermal electrons. In passive mode, when the transmitter is switched off, it becomes a classical wave receiver. The 2 to 80 kHz frequency range of the electric component of natural waves is therefore monitored. The objective of the presentation is to show that the thermal electron density may be derived from the active and/or passive measurements of the WHISPER all along the CLUSTER trajectory, and almost everywhere, with a good accuracy compared with other estimates.
UR - https://www.scopus.com/pages/publications/33646587322
M3 - Conference contribution
AN - SCOPUS:33646587322
SN - 929092909X
SN - 9789290929093
T3 - European Space Agency, (Special Publication) ESA SP
SP - 483
EP - 488
BT - Proceedings of theCluster and Double Star Symposium -5th Anniversary of Cluster in Space
T2 - 5th Anniversary of Cluster in Space - Cluster and Double Star Symposium
Y2 - 19 September 2005 through 23 September 2005
ER -