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A New Method for Retrieving Electron Density Profiles from the MARSIS Ionograms

文献类型：期刊论文

作者Liu, Wendong1,2,3; Liu, Libo1,2,3; Chen, Yiding1,2,3; Le, Huijun1,2,3; Zhang, Ruilong1,2,3; Li, Wenbo1,2,3; Li, Jiacheng1,2,3; Zhang, Tongtong1,2,3; Yang, Yuyan1,2,3; Ma, Han1,2,3
刊名REMOTE SENSING
出版日期2022-04-01
卷号14期号:8页码:13
关键词ionosphere Martian ionosphere MARSIS ionogram ionograms inversion
DOI10.3390/rs14081817
英文摘要The Martian ionosphere was actively detected by Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) aboard the Mars Express. The detected echo signal of the MARSIS at an epoch is presented as a function of frequency and time delay to form an ionogram. Some MARSIS ionograms have been processed to obtain the electron density profiles of the Martian topside ionosphere. Unfortunately, more than half of the records cannot be processed with current methods due to the lack of local plasma density information at spacecraft altitude. In this work, we employ a piece-wise exponent to describe the electron density profile of the Martian topside ionosphere. The piece-wise exponent used in our method can reasonably capture the altitude structure of the Martian topside ionosphere, which has been validated with the MGS and MAVEN data. In an altitude regime of lower than 200 km, the average absolute height error of the same electron density between MGS data and fitted profiles is 0.006 km, and the average relative error is 0.008%. In an altitude regime of higher than 200 km, the average absolute height error of the same electron density between MGS data and fitted profiles is 0.55 km, and the average relative error is -0.1%. Based on the altitude structure knowledge of the Martian topside ionosphere, we put forward a new method to invert electron density profiles from MARSIS ionograms with/without local plasma density information. Compared with the previous results, the average absolute difference in the peak height of the retrieved profile is 7.38 km, within the margin of the MARSIS height resolution of 13.8 km. The average relative difference is only 3%. The application of the new method can greatly improve the utilization rate of MARSIS ionogram records.
WOS关键词REAL HEIGHT ANALYSIS ; POLYNOMIAL ANALYSIS ; MARTIAN IONOSPHERE ; RADAR SOUNDINGS ; RADIO-WAVES ; TOPSIDE ; REFLECTION ; ATMOSPHERE ; INVERSION ; ACCURACY
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; National Natural Science Foundation of China[42030202] ; National Natural Science Foundation of China[42174204] ; National Natural Science Foundation of China[41904140]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000787409800001
出版者MDPI
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105140]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Liu, Libo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing 100029, Heilongjiang, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Wendong,Liu, Libo,Chen, Yiding,et al. A New Method for Retrieving Electron Density Profiles from the MARSIS Ionograms[J]. REMOTE SENSING,2022,14(8):13.
APA Liu, Wendong.,Liu, Libo.,Chen, Yiding.,Le, Huijun.,Zhang, Ruilong.,...&Ma, Han.(2022).A New Method for Retrieving Electron Density Profiles from the MARSIS Ionograms.REMOTE SENSING,14(8),13.
MLA Liu, Wendong,et al."A New Method for Retrieving Electron Density Profiles from the MARSIS Ionograms".REMOTE SENSING 14.8(2022):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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