An empirical model of the global distribution of plasmaspheric hiss based on Van Allen Probes EMFISIS measurements

被引:0
作者
JingZhi Wang [1 ]
Qi Zhu [1 ]
XuDong Gu [1 ]
Song Fu [1 ]
JianGuang Guo [2 ]
XiaoXin Zhang [2 ]
Juan Yi [1 ]
YingJie Guo [1 ]
BinBin Ni [1 ]
Zheng Xiang [1 ]
机构
[1] Department of Space Physics, School of Electronic Information, Wuhan University
[2] Key Laboratory of Space Weather,National Center for Space Weather, China Meteorological Administration
关键词
hiss; Van Allen Probes; global model;
D O I
暂无
中图分类号
P354 [空间等离子体物理];
学科分类号
070802 ;
摘要
Using wave measurements from the EMFISIS instrument onboard Van Allen Probes, we investigate statistically the spatial distributions of the intensity of plasmaspheric hiss waves. To reproduce these empirical results, we establish a fitting model that is a thirdorder polynomial function of L-shell, magnetic local time(MLT), magnetic latitude(MLAT), and AE*. Quantitative comparisons indicate that the model’s fitting functions can reflect favorably the major empirical features of the global distribution of hiss wave intensity,including substorm dependence and the MLT asymmetry. Our results therefore provide a useful analytic model that can be readily employed in future simulations of global radiation belt electron dynamics under the impact of plasmaspheric hiss waves in geospace.
引用
收藏
页码:246 / 265
页数:20
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