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Monitoring trace gases over the Antarctic using Atmospheric Infrared Ultraspectral Sounder Onboard GaoFen-5: algorithm description and first retrieval results of O3, H2O, and HCl

Li, Xiaoying and Xu, Jian and Cheng, Tianhai and Shi, Hailiang and Zhang, Xingying and Ge, Shule and Wang, Hongmei and Zhu, Songyan and Miao, Jing and Luo, Qi (2019) Monitoring trace gases over the Antarctic using Atmospheric Infrared Ultraspectral Sounder Onboard GaoFen-5: algorithm description and first retrieval results of O3, H2O, and HCl. Remote Sensing, 11 (17), pp. 1-18. Multidisciplinary Digital Publishing Institute (MDPI). DOI: 10.3390/rs11171991 ISSN 2072-4292

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Official URL: https://www.mdpi.com/2072-4292/11/17/1991

Abstract

AIUS (Atmospheric Infrared Ultraspectral Sounder) is an infrared occultation spectrometer onboard the Chinese GaoFen-5 satellite, which covers a spectral range of 2.4-13.3 μm (750-4100 cm-1) with a spectral resolution of about 0.02 cm-1. AIUS was designed to measure and to study the chemical processes of ozone (O3) and other trace gases in the upper troposphere and stratosphere over the Antarctic. In this study, the AIUS retrieval methodology is described. A comparison between AIUS measurements and simulated spectra illustrates that AIUS measurements agree well with the simulated spectra. To first evaluate the reliability of the AIUS retrieval algorithm, three retrieval O3 experiments were performed based on ACE-FTS (Atmospheric Chemistry Experiment-Fourier transform spectrometer) observed spectra. A comparison with the ACE-FTS official products shows that the relative difference of these three retrieval experiments was mostly within 10% between 20 and 70 km. These retrieval experiments demonstrate that the retrieval algorithm described in this study provided reliable results and reliably. Furthermore, O3, H2O, and HCl profiles were retrieved from 24 orbits of AIUS measurements and compared with the official Aura /MLS (Microwave Limb Sounder) level-2 v4.2 profiles. The relative difference was mostly within 10% (about 0.02-0.4 ppm) between 18 and 58 km for the O3 retrieval, within 10% (0-0.5 ppm) between 15 and 80 km for the H2O retrieval, and within 10% (about 0.1 ppb) between 30 and 60 km for the HCl retrieval. A good agreement in the retrieved trace gas profiles was reached between AIUS and MLS.

Item URL in elib:https://elib.dlr.de/128905/
Document Type:Article
Title:Monitoring trace gases over the Antarctic using Atmospheric Infrared Ultraspectral Sounder Onboard GaoFen-5: algorithm description and first retrieval results of O3, H2O, and HCl
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Li, XiaoyingState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Xu, Jianjian.xu (at) dlr.dehttps://orcid.org/0000-0003-2348-125X
Cheng, TianhaiState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Shi, HailiangAnhui Institute of Optics and Fine Mechanics, Chinese Academy of SciencesUNSPECIFIED
Zhang, XingyingNational Satellite Meteorological Center, China Meteorological AdministrationUNSPECIFIED
Ge, ShuleChina Center for Resources Satellite Data and ApplicationUNSPECIFIED
Wang, HongmeiState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Zhu, SongyanState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Miao, JingState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Luo, QiState Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of SciencesUNSPECIFIED
Date:August 2019
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:11
DOI :10.3390/rs11171991
Page Range:pp. 1-18
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
ISSN:2072-4292
Status:Published
Keywords:AIUS; occultation; retrieval algorithm; microwindows; ozone
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Xu, Dr.-Ing. Jian
Deposited On:29 Aug 2019 11:15
Last Modified:14 Dec 2019 04:27

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