Far-ultraviolet airglow remote sensing measurements on Feng Yun 3-D meteorological satellite
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Published:2022-03-18
Issue:5
Volume:15
Page:1577-1586
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Wang YungangORCID, Fu Liping, Jiang Fang, Hu Xiuqing, Liu Chengbao, Zhang XiaoxinORCID, Li Jiawei, Ren ZhipengORCID, He FeiORCID, Sun Lingfeng, Sun Ling, Yang Zhongdong, Zhang PengORCID, Wang Jingsong, Mao Tian
Abstract
Abstract. The Ionospheric Photometer (IPM) is carried on the Feng
Yun 3-D (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 nightside thermosphere and 135.6 nm and
N2 Lyman–Birge–Hopfield (LBH) emissions in the dayside thermosphere that can be used to
invert the peak electron density of the F2 layer (NmF2) at night
and the 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 02:00 LT using atomic oxygen (OI) 135.6 nm
nightglow. It could also identify the reduction of O/N2 in the
high-latitude region during the geomagnetic storm of 26 August 2018. The
IPM-derived NmF2 agrees well with that observed by four ionosonde stations
along 120∘ E with a standard deviation of 26.67 %. Initial
results demonstrate that the performance of IPM meets the design
requirements and therefore can be used to study the thermosphere and
ionosphere in the future.
Funder
National Natural Science Foundation of China
Publisher
Copernicus GmbH
Subject
Atmospheric Science
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