Response of the High-latitude Upper Mesosphere to Energetic Electron Precipitation
Response of the High-latitude Upper Mesosphere to Energetic Electron Precipitation
复制标题
高纬上层中间层对高能电子降水的响应
DOI:
10.3847/1538-4357/ab7eb0
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发表时间:
2020-04
影响因子:
4.9
通讯作者:
Dou Xiankang
中科院分区:
文献类型:
--
作者:
Zou Zicheng;Xue Xianghui;Yi Wen;Shen Chenglong;Yang Chengyun;Tang Yihuan;Chen Tingdi;Dou Xiankang
We carried out a statistical study on the effects of strong geomagnetic activity on the mesopause over the auroral region from 2002 to 2018. When the auroral electrojet index increased significantly, the energetic electron precipitation from the Medium Energy Proton and Electron Detector was enhanced by several multiples of 10 for the 55°–70° geomagnetic latitude band. The temperatures measured by the Sounding of the Atmosphere using Broadband Emission Radiometry instrument increased immediately in the mesopause region, together with a descent of the mesopause of about 0.5–2 km. Due to the depth that the precipitation can affect, we conclude that the mesopause is mainly influenced by electrons in the energy range 30–100 keV. The maximum temperature increment at 95 km can reach 4 K and the delay of the response can be up to 1 day. In general, we find that the temperatures significantly respond to the electron precipitation at as low as 93 km, within the mesopause region in most of a year.
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DOI:
10.1029/2018gl078968
发表时间:
2018
期刊:
Geophys. Res. Lett.
影响因子:
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DOI:
10.1016/j.jastp.2004.01.032
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DOI:
10.1029/2019ja026533
发表时间:
2019
期刊:
JGR space physics
影响因子:
--
作者:
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影响因子:
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