Determination of the Earth's plasmapause location from the CE-3 EUVC images
Determination of the Earth's plasmapause location from the CE-3 EUVC images
复制标题
根据 CE-3 EUVC 图像确定地球等离子层顶位置
DOI：
10.1002/2015ja021863
复制
发表时间：
2016-01-01
影响因子：
2.8
通讯作者：
Nakano, Shinya
中科院分区：
文献类型：
--
作者：
He, Fei;Zhang, Xiao-Xin;Nakano, Shinya
中国的嫦娥三号(CE-3)任务搭载的月球极端紫外线相机首次成功地从月球表面的侧视图拍摄了整个地球的等离子体层。本研究使用了2014年4月21日的EUVC图像，以展示月球EUV成像的特征和配置，并说明确定磁赤道上的等离子体顶层位置的算法。用最小L算法从所有可用的EUVC图像中确定的等离子体层顶位置与由现场观测(国防气象卫星计划、亚暴期间事件和大尺度相互作用的时间历史和辐射带风暴探测器)提取的位置进行了定量比较。EUVC所看到的已确定的等离子体与从其他卫星提取的等离子体之间的良好一致性表明，基于月球的EUVC图像以及确定算法是可靠的。这一初步研究为今后利用月基EUVC成像研究等离子体层动力学提供了重要依据。
The Moon-based Extreme Ultraviolet Camera (EUVC) aboard China's Chang'e-3 (CE-3) mission has successfully imaged the entire Earth's plasmasphere for the first time from the side views on lunar surface. An EUVC image on 21 April 2014 is used in this study to demonstrate the characteristics and configurations of the Moon-based EUV imaging and to illustrate the determination algorithm of the plasmapause locations on the magnetic equator. The plasmapause locations determined from all the available EUVC images with the Minimum L Algorithm are quantitatively compared with those extracted from in situ observations (Defense Meteorological Satellite Program, Time History of Events and Macroscale Interactions during Substorms, and Radiation Belt Storm Probes). Excellent agreement between the determined plasmapauses seen by EUVC and the extracted ones from other satellites indicates the reliability of the Moon-based EUVC images as well as the determination algorithm. This preliminary study provides an important basis for future investigation of the dynamics of the plasmasphere with the Moon-based EUVC imaging.