In-Flight Preliminary Performance of GF-5B/Absorbing Aerosol Sensor
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Published:2023-09-03
Issue:17
Volume:15
Page:4343
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ISSN:2072-4292
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Container-title:Remote Sensing
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language:en
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Short-container-title:Remote Sensing
Author:
Wang Yongmei1234, Zhang Zhuo134, Mao Jinghua134, Wang Houmao134, Shi Entao134, Liu Xiaohong1234, Li Pengda1234, Liu Jiu134
Affiliation:
1. Laboratory of Space Environment Exploration, National Space Science Center, Beijing 100190, China 2. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China 3. Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China 4. Key Laboratory of Environmental Space Situation Awareness Technology, Beijing 100190, China
Abstract
The Absorbing Aerosol Sensor (AAS) is carried on the Gao-Fen 5B (GF-5B) satellite, and it allows for the measurement of solar backscatter radiation by the atmosphere in the UV–Vis bands. The AAS is an imaging spectrometer that employs CCD for capturing both a continuous spectrum and the cross-track orientation with a 114° wide swath. The broad field of view provides daily global envelopment with a 4 km spatial resolution at the nadir. This paper mainly analyzes the initial working status of the instrument in orbit, including wavelength calibration, radiometric calibration, detector performance, and product availability. Preliminary observations indicate the ability of the AAS to monitor absorbing aerosols like dust, biomass burning, volcano ash, and some pollution aerosols and to identify the aerosol events in China and other regions with high spatial resolution.
Funder
the Strategic Priority Program on Space Science
Subject
General Earth and Planetary Sciences
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