Electron Microburst Size Distribution Derived With AeroCube‐6
Electron Microburst Size Distribution Derived With AeroCube‐6
复制标题
使用 AeroCube 得出的电子微爆尺寸分布 6
DOI:
10.1029/2019ja027651
复制
发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Claudepierre, S. G.
中科院分区:
文献类型:
--
作者:
Shumko, M.;Johnson, A. T.;Sample, J. G.;Griffith, B. A.;Turner, D. L.;O'Brien, T. P.;Agapitov, O.;Blake, J. B.;Claudepierre, S. G.
Microbursts are an impulsive increase of electrons from the radiation belts into the atmosphere and have been directly observed in low Earth orbit and the upper atmosphere. Prior work has estimated that microbursts are capable of rapidly depleting the radiation belt electrons on the order of a day; hence, their role to radiation belt electron losses must be considered. Losses due to microbursts are not well constrained, and more work is necessary to accurately quantify their contribution as a loss process. To address this question, we present a statistical study of 35 keV microburst sizes using the pair of AeroCube‐6 CubeSats. The microburst size distribution in low Earth orbit and the magnetic equator was derived using both spacecraft. In low Earth orbit, the majority of microbursts were observed, while the AeroCube‐6 separation was less than a few tens of kilometers, mostly in latitude. To account for the statistical effects of random microburst locations and sizes, Monte Carlo and analytic models were developed to test hypothesized microburst size distributions. A family of microburst size distributions were tested, and a Markov chain Monte Carlo sampler was used to estimate the optimal distribution of model parameters. Finally, a majority of observed microbursts map to sizes less than 200 km at the magnetic equator. Since microbursts are widely believed to be generated by scattering of radiation belt electrons by whistler mode waves, the observed microburst size distribution was compared to whistler mode chorus size distributions derived in prior literature.
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DOI:
10.1002/2016ja022485
发表时间:
2016
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
作者:
A. Crew;H. Spence;J. Blake;D. Klumpar;B. Larsen;T. O'Brien;S. Driscoll;M. Handley;J. Legere;S. Longworth;K. Mashburn;Ehson Mosleh;Nicholas Ryhajlo;Sonya S. Smith;L. Springer;M. Widholm
通讯作者:
M. Widholm
影响因子:
5.2
作者:
X. Shen;Wen Li;Q. Ma;O. Agapitov;Y. Nishimura
通讯作者:
X. Shen;Wen Li;Q. Ma;O. Agapitov;Y. Nishimura
DOI:
--
发表时间:
1966
期刊:
影响因子:
--
作者:
G. Parks
通讯作者:
G. Parks
DOI:
--
发表时间:
1964
期刊:
影响因子:
--
作者:
K. Anderson;D. Milton
通讯作者:
D. Milton
影响因子:
5.2
作者:
Agapitov, O.;Blum, L. W.;Wygant, J.
通讯作者:
Wygant, J.