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- Title
Extracting Exospheric Temperature From Daytime Ionospheric Electron Density Profiles.
- Authors
Shaoyang Li; Zhipeng Ren; Xinan Yue; Libo Liu; Tingting Yu; Yong Wei
- Abstract
Given that the ionosphere is strongly determined by the thermosphere and its state depends on thermospheric parameters, we propose a new method to extract exospheric temperature (Tex) from electron density (Ne) profiles based on the relationship between the variations in Tex and Ne profiles established through simulation. Ne profiles and corresponding Tex from the Millstone Hill incoherent scatter radar (ISR) observations are used to test the method. ISR Ne profiles are used for Tex retrieval and ISR Tex is used to make a comparison with Tex calculated by model and retrieved Tex. The results show that the retrieved Tex effectively captures diurnal, anomalous and short-period variations. The relative deviation between the retrieved-observed Tex is approximately 2%, which is significantly improved compared with the Mass Spectrometer Incoherent Scatter model, especially under disturbed conditions. This result confirms that thermospheric temperature variation can be deduced from ionospheric profiles and our method can be considered a useful tool to obtain Tex from Ne profiles.
- Subjects
IONOSPHERIC electron density; ELECTRON distribution; ELECTRON density; INCOHERENT scattering; MASS spectrometers
- Publication
Journal of Geophysical Research. Space Physics, 2023, Vol 128, Issue 4, p1
- ISSN
2169-9380
- Publication type
Article
- DOI
10.1029/2022JA030988