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A Coupled BRDF CO2 Retrieval Method for the GF-5 GMI and Improvements in the Correction of Atmospheric Scattering

文献类型：期刊论文

作者Ye, Hanhan1; Shi, Hailiang1; Li, Chao1,2; Wang, Xianhua1; Xiong, Wei1; An, Yuan1,2; Wang, Yue1,2; Liu, Liangchen1,2
刊名REMOTE SENSING
出版日期2022-02-01
卷号14
关键词CO2 retrieval CBCR method BRDF GMI AOD prior constraints TCCON
DOI10.3390/rs14030488
通讯作者Shi, Hailiang(hlshi@aiofm.ac.cn)
英文摘要The Greenhouse Gases Monitoring Instrument (GMI), on board the Chinese Gaofen-5 (GF-5) satellite, provides rich observation data for the global remote sensing of atmospheric CO2. To meet the high-precision satellite retrieval needs of atmospheric CO2, this paper designs a coupled bidirectional reflectance distribution function (BRDF) CO2 retrieval (CBCR) method, which describes the surface reflectance characteristics by the BRDF, corrects for atmospheric scattering based on full physics retrieval theory, and ensures the stable retrieval of multiple parameters and atmospheric CO2 by enriching prior constraints. Theoretical analysis shows that the influence of atmospheric scattering induced by the surface bidirectional reflectance characteristics is significantly related to the aerosol optical depth (AOD), solar zenith angle (SZA), and viewing zenith angle (VZA). The validation of GMI CO2 retrievals shows that the CBCR method significantly reduced the influence of the surface bidirectional reflectance characteristics under high AOD and high SZA conditions, decreased the atmospheric CO2 retrieval error from 0.58 +/- 5.64 ppm to -1.33 +/- 3.13 ppm, and increased the correlation with the temporal variation of actual atmospheric CO2 from 34.7 to 76.8%. Our CBCR method can correct the influence of atmospheric scattering induced by the surface bidirectional reflectance characteristics on atmospheric CO2 retrieval, and this work demonstrates that describing the surface reflectance characteristics by using BRDF is a promising idea in the field of satellite CO2 retrievals.
WOS关键词ORBITING CARBON OBSERVATORY-2 ; SATELLITE ; SPACE ; UNCERTAINTIES ; ALGORITHM ; DIOXIDE ; MODEL
资助项目National Key Research and Development Program[2017YFB0504000] ; National Key Research and Development Program[2017YFB0504001] ; Key Programs of the Chinese Academy of Sciences[ZDRW-KT-2020-3] ; Civil Aerospace Technology Advance Research Program[D040102] ; Key Supporting Projects of Hefei Research Institute in the 13th Five-Year Plan[Y73H9P1801]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:000757317700001
资助机构National Key Research and Development Program ; Key Programs of the Chinese Academy of Sciences ; Civil Aerospace Technology Advance Research Program ; Key Supporting Projects of Hefei Research Institute in the 13th Five-Year Plan
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127775]  
专题中国科学院合肥物质科学研究院
通讯作者Shi, Hailiang
作者单位1.Chinese Acad Sci, Key Lab Gen Opt Calibrat & Characterizat Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
2.Grad Sch Univ Sci & Technol China, Scinece Isl Branch, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Ye, Hanhan,Shi, Hailiang,Li, Chao,et al. A Coupled BRDF CO2 Retrieval Method for the GF-5 GMI and Improvements in the Correction of Atmospheric Scattering[J]. REMOTE SENSING,2022,14.
APA Ye, Hanhan.,Shi, Hailiang.,Li, Chao.,Wang, Xianhua.,Xiong, Wei.,...&Liu, Liangchen.(2022).A Coupled BRDF CO2 Retrieval Method for the GF-5 GMI and Improvements in the Correction of Atmospheric Scattering.REMOTE SENSING,14.
MLA Ye, Hanhan,et al."A Coupled BRDF CO2 Retrieval Method for the GF-5 GMI and Improvements in the Correction of Atmospheric Scattering".REMOTE SENSING 14(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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