Comparison of simulated and observed trapped and precipitating electron fluxes during a magnetic storm

被引:22
|
作者
Chen, Margaret W. [1 ]
Lemon, Colby L. [1 ]
Orlova, Ksenia [2 ,3 ]
Shprits, Yuri [2 ,4 ]
Hecht, James [1 ]
Walterscheid, R. L. [1 ]
机构
[1] Aerosp Corp, El Segundo, CA 90245 USA
[2] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA
[3] Skolkovo Inst Sci & Technol, Skolkovo, Russia
[4] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA
基金
美国国家科学基金会;
关键词
PITCH-ANGLE DIFFUSION; RADIATION BELT ELECTRONS; RING CURRENT; RELATIVISTIC ELECTRONS; ENERGY CONTENT; MODEL; PARTICLES; SPECIFICATION; ACCELERATION; INJECTION;
D O I
10.1002/2015GL065737
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The ability to accurately model precipitating electron distributions is crucial for understanding magnetosphere-ionosphere-thermosphere coupling processes. We use the magnetically and electrically self-consistent Rice Convection Model-Equilibrium (RCM-E) of the inner magnetosphere to assess how well different electron loss models can account for observed electron fluxes during the large 10 August 2000 magnetic storm. The strong pitch angle scattering rate produces excessive loss on the morning and dayside at geosynchronous orbit (GEO) compared to what is observed by a Los Alamos National Laboratory satellite. RCM-E simulations with parameterized scattering due to whistler chorus outside the plasmasphere and hiss inside the plasmasphere are able to account simultaneously for trapped electron fluxes at 1.2keV to similar to 100keV observed at GEO and for precipitating electron fluxes and electron characteristic energies in the ionosphere at 833km measured by the NOAA 15 satellite.
引用
收藏
页码:8302 / 8311
页数:10
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