China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles
The atmospheric infrared ultraspectral sounder (AIUS) is China's first infrared occultation spectrometer onboard the GaoFen-5 satellite. This instrument provides measurements in the near-infrared and mid-infrared spectral regions with a spectral resolution of 0.02 cm<inline-formula>...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10479977/ |
| _version_ | 1797206113060388864 |
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| author | Shuanghui Liu Xiaoying Li Jian Xu Hailiang Shi Yuhang Guo Xingying Zhang Shule Ge Yapeng Wang Hongmei Wang Xifeng Cao Lanlan Rao Jiancheng Shi |
| author_facet | Shuanghui Liu Xiaoying Li Jian Xu Hailiang Shi Yuhang Guo Xingying Zhang Shule Ge Yapeng Wang Hongmei Wang Xifeng Cao Lanlan Rao Jiancheng Shi |
| author_sort | Shuanghui Liu |
| collection | DOAJ |
| description | The atmospheric infrared ultraspectral sounder (AIUS) is China's first infrared occultation spectrometer onboard the GaoFen-5 satellite. This instrument provides measurements in the near-infrared and mid-infrared spectral regions with a spectral resolution of 0.02 cm<inline-formula><tex-math notation="LaTeX">$^{-1}$</tex-math></inline-formula>, monitoring key greenhouse gases like methane (CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula>). In this study, we have developed a physics-based retrieval algorithm for accurately deriving CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula> mole fraction profiles from infrared absorption spectra. The retrieval algorithm is applied to the AIUS and successfully obtains CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula> mole fraction profiles from January to December 2019 over Antarctic. The validation results show that the retrieval algorithm has a satisfactory performance using AIUS measurements, with average relative standard deviation of the differences less than 7.2% throughout the altitude range of 10–70 km. |
| first_indexed | 2024-04-24T09:01:51Z |
| format | Article |
| id | doaj.art-7545555fc86a4b1b8b6a1a51cc7c7e6a |
| institution | Directory Open Access Journal |
| issn | 1939-1404 2151-1535 |
| language | English |
| last_indexed | 2024-04-24T09:01:51Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj.art-7545555fc86a4b1b8b6a1a51cc7c7e6a2024-04-15T23:00:09ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352024-01-01177946795610.1109/JSTARS.2024.338165110479977China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane ProfilesShuanghui Liu0https://orcid.org/0000-0001-6679-2790Xiaoying Li1https://orcid.org/0000-0003-2210-2836Jian Xu2https://orcid.org/0000-0003-2210-2836Hailiang Shi3https://orcid.org/0000-0001-5235-2698Yuhang Guo4https://orcid.org/0009-0008-7226-5215Xingying Zhang5Shule Ge6https://orcid.org/0000-0001-8214-6342Yapeng Wang7Hongmei Wang8https://orcid.org/0000-0002-9716-8293Xifeng Cao9Lanlan Rao10https://orcid.org/0000-0003-4439-0496Jiancheng Shi11https://orcid.org/0000-0002-6163-2912National Space Science Center, Chinese Academy of Sciences, Beijing, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing, ChinaNational Space Science Center, Chinese Academy of Sciences, Beijing, ChinaAnhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaAerospace Information Research Institute, Chinese Academy of Sciences, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaChina Center for Resources Satellite Data and Application, Beijing, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaNantong University, Nantong, ChinaNational Satellite Meteorological Center, China Meteorological Administration, Beijing, ChinaNational Space Science Center, Chinese Academy of Sciences, Beijing, ChinaNational Space Science Center, Chinese Academy of Sciences, Beijing, ChinaThe atmospheric infrared ultraspectral sounder (AIUS) is China's first infrared occultation spectrometer onboard the GaoFen-5 satellite. This instrument provides measurements in the near-infrared and mid-infrared spectral regions with a spectral resolution of 0.02 cm<inline-formula><tex-math notation="LaTeX">$^{-1}$</tex-math></inline-formula>, monitoring key greenhouse gases like methane (CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula>). In this study, we have developed a physics-based retrieval algorithm for accurately deriving CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula> mole fraction profiles from infrared absorption spectra. The retrieval algorithm is applied to the AIUS and successfully obtains CH<inline-formula><tex-math notation="LaTeX">$_{4}$</tex-math></inline-formula> mole fraction profiles from January to December 2019 over Antarctic. The validation results show that the retrieval algorithm has a satisfactory performance using AIUS measurements, with average relative standard deviation of the differences less than 7.2% throughout the altitude range of 10–70 km.https://ieeexplore.ieee.org/document/10479977/AntarcticGaoFen-5 (GF-5)/atmospheric infrared ultraspectral sounder (AIUS)methane (CH<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$_{4}$</tex-math> </inline-formula> </named-content>)retrieval algorithm |
| spellingShingle | Shuanghui Liu Xiaoying Li Jian Xu Hailiang Shi Yuhang Guo Xingying Zhang Shule Ge Yapeng Wang Hongmei Wang Xifeng Cao Lanlan Rao Jiancheng Shi China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Antarctic GaoFen-5 (GF-5)/atmospheric infrared ultraspectral sounder (AIUS) methane (CH<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$_{4}$</tex-math> </inline-formula> </named-content>) retrieval algorithm |
| title | China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles |
| title_full | China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles |
| title_fullStr | China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles |
| title_full_unstemmed | China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles |
| title_short | China's First Infrared Occultation Spectrometer (GaoFen-5/AIUS) Monitoring Atmosphere Above Antarctic: Evaluation of Methane Profiles |
| title_sort | china x0027 s first infrared occultation spectrometer gaofen 5 aius monitoring atmosphere above antarctic evaluation of methane profiles |
| topic | Antarctic GaoFen-5 (GF-5)/atmospheric infrared ultraspectral sounder (AIUS) methane (CH<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX">$_{4}$</tex-math> </inline-formula> </named-content>) retrieval algorithm |
| url | https://ieeexplore.ieee.org/document/10479977/ |
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