Open AccessThe Langmuir Probe onboard CSES: data inversion analysis method and first results
Author(s) -
Yan Rui,
Guan YiBing,
Shen XuHui,
Huang JianPing,
Zhang XueMin,
Liu Chao,
Liu DaPeng
Publication year - 2018
Publication title -
earth and planetary physics
Language(s) - English
Resource type - Journals
ISSN - 2096-3955
DOI - 10.26464/epp2018046
Subject(s) - ionosphere , langmuir probe , inversion (geology) , geology , meteorology , plasma , remote sensing , physics , geophysics , seismology , plasma diagnostics , tectonics , quantum mechanics
The Langmuir Probe (LAP), onboard the China Seismo‐Electromagnetic Satellite (CSES), has been designed for in situ measurements of bulk parameters of the ionosphere plasma, the first Chinese application of in‐situ measurement technology in the field of space exploration. The two main parameters measured by LAP are electron density and temperature. In this paper, a brief description of the LAP and its work mode are provided. Based on characteristics of the LAP, and assuming an ideal plasma environment, we introduce in detail a method used to invert the I‐V curve; the data products that can be accessed by users are shown. Based on the LAP data available, this paper reports that events such as earthquakes and magnetic storms are preceded and followed by obvious abnormal changes. We suggest that LAP could provide a valuable data set for studies of space weather, seismic events, and the ionospheric environment.