Preprints
https://doi.org/10.5194/amt-2021-195
https://doi.org/10.5194/amt-2021-195

  30 Sep 2021

30 Sep 2021

Review status: this preprint is currently under review for the journal AMT.

Far ultraviolet airglow remote sensing measurements on Feng Yun 3D meteorological satellite

Yungang Wang1,2, Liping Fu3, Fang Jiang3, Xiuqing Hu1, Chengbao Liu1, Xiaoxin Zhang1,2, Jiawei Li1,2, Zhipeng Ren4, Fei He4, Lingfeng Sun4, Ling Sun1, Zhongdong Yang1, Peng Zhang1, Jingsong Wang1,2, and Tian Mao1,2 Yungang Wang et al.
  • 1National Satellite Meteorological Center, Chinese Meteorological Administration, Beijing, China
  • 2Key Laboratory of Space Weather, National Center for Space Weather, Chinese Meteorological Administration, Beijing, China
  • 3National Space Science Center,Chinese Academy of Sciences, Beijing, China
  • 4Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

Abstract. The Ionospheric Photometer (IPM) is carried on the Feng Yun 3D (FY3D) meteorological satellite, which allows for the measurement of far-ultraviolet (FUV) airglow radiation in the thermosphere. IPM is a compact and high-sensitivity nadir-viewing FUV remote sensing instrument. It monitors 135.6 nm emission in the night-side thermosphere and 135.6 nm and N2 LBH emissions in the day-side thermosphere that can be used to invert the peak electron density of the F2 layer (NmF2) at night and O / N2 ratio in the daytime, respectively. Preliminary observations show that the IPM could monitor the global structure of the equatorial ionization anomaly (EIA) structure around 2:00 local time using OI 135.6 nm nightglow properly. It could also identify the reduction of O / N2 in the high-latitude region during the geomagnetic storm of Aug. 26, 2018. The IPM derived NmF2 accords well with that observed by 4 ionosonde stations along 120° E with a standard deviation of 26.67 %. Initial results demonstrate that the performance of IPM meets the designed requirement and therefore can be used to study the thermosphere and ionosphere in the future.

Yungang Wang et al.

Status: open (until 20 Nov 2021)

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Yungang Wang et al.

Yungang Wang et al.

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Short summary
Far-ultraviolet (FUV) airglow radiation is particularly well-suited to space-based remote sensing. The Ionospheric Photometer (IPM) instrument carried aboard the Feng Yun 3D satellite measures the spectral radiance of the Earth far ultraviolet airglow. IPM is a tiny, highly sensitive, and robust remote sensing instrument. Initial results demonstrate that the performance of IPM meets the designed requirement and therefore can be used to study the thermosphere and ionosphere in the future.