HR: 0800h
AN: GP31A-0067    [Abstracts]
TI: Global Scale Modeling of the Equatorial Electrojet in the Light of Satellite Magnetic Measurements
AU: * Doumbia, V
EM: doumouya@ipgp.jussieu.fr
AF: Universite de Cocody-Abidjan, UFR SSMT, Laboratoire de Physique l'Atmosphere, 22 BP 582, Abidjan, 22 Cote D'ivoire
AU: Richmond, A
EM: richmond@hao.ucar.edu
AF: National Center for Atmospheric Research (NCAR), 3450 Mitchell Lane, FL2, Boulder, CO 80301 United States
AU: Cohen, Y
EM: cohen@ipgp.jussieu.fr
AF: IPGP, D‚partement de G‚ophysique Spatiale et Plan‚taire, 4, avenue de Neptune, Saint-Maur, 94107 France
AB: The spatial and temporal characteristics of the Equatorial Electrojet (EEJ) are studied on global scale using CHAMP and Oersted satellite magnetic measurements. In the light of these results, the empirical equatorial electrojet model (3 EM) was re-evaluated. Notice that the 3EM was computed by Doumouya et al (2003) on the basis of the worldwide magnetic measurements during the International Equatorial Electrojet Year (IEEY). The results of this model have already been compared to CHAMP satellite preliminary data (Doumouya and Cohen, 2004). The purpose of the present work is improving the 3EM in order to better dealing with satellite borne EEJ magnetic signature.
DE: 1500 GEOMAGNETISM AND PALEOMAGNETISM
DE: 1541 Satellite magnetics: main field, crustal field, external field
DE: 1555 Time variations: diurnal to decadal
DE: 2409 Current systems (2721)
DE: 2447 Modeling and forecasting
SC: Geomagnetism and Paleomagnetism [GP]
MN: Fall Meeting 2005