Volume 38 Issue 1
Jan.  2018
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JIANG Fang, FU Liping, WANG Yongmei. Retrieval Algorithm and Precision Analysis for NmF2 of Nighttime OI135.6nm Emissionormalsize[J]. Chinese Journal of Space Science, 2018, 38(1): 58-64. doi: 10.11728/cjss2018.01.058
Citation: JIANG Fang, FU Liping, WANG Yongmei. Retrieval Algorithm and Precision Analysis for NmF2 of Nighttime OI135.6nm Emissionormalsize[J]. Chinese Journal of Space Science, 2018, 38(1): 58-64. doi: 10.11728/cjss2018.01.058

Retrieval Algorithm and Precision Analysis for NmF2 of Nighttime OI135.6nm Emissionormalsize

doi: 10.11728/cjss2018.01.058
  • Received Date: 2017-02-23
  • Rev Recd Date: 2017-05-12
  • Publish Date: 2018-01-15
  • The nighttime OI135.6nm airglow is proportional to the square of the maximum electronic density of ionospheric F2 layer (NmF2). Based on the previous studies of the nighttime OI135.6nm airglow radiative and emissive model, the retrieval algorithm of NmF2 derived from nighttime OI135.6nm emission was presented. The column emission rate is calculated for each grid point of the nighttime airglow radiative and emissive model. The electron density profile, O+ density profile, and electron temperature profile are taken from the IRI2000 model, and the neutral components are taken from MSISE90 model. In order to derive the relationship between the OI135.6nm column emission rate and NmF2, the column emission rate is fitted to the square of NmF2 linearly. The ratio of the square of NmF2 to the column emission rate is obtained from the slop of the fitting line, which gives the relationship between NmF2 and the emission. According to the measurements of the OI 135.6nm column emission rate, NmF2 are retrieved. Finally, the error of the retrieval method is analyzed, which provides important theoretical supports for the time and space applicability of the algorithm.

     

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