globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50146
论文题名:
Effects of atmospheric light scattering on spectroscopic observations of greenhouse gases from space. Part 2: Algorithm intercomparison in the GOSAT data processing for CO<inf>2</inf> retrievals over TCCON sites
作者: Oshchepkov S.; Bril A.; Yokota T.; Wennberg P.O.; Deutscher N.M.; Wunch D.; Toon G.C.; Yoshida Y.; O'Dell C.W.; Crisp D.; Miller C.E.; Frankenberg C.; Butz A.; Aben I.; Guerlet S.; Hasekamp O.; Boesch H.; Cogan A.; Parker R.; Griffith D.; Macatangay R.; Notholt J.; Sussmann R.; Rettinger M.; Sherlock V.; Robinson J.; Kyrö E.; Heikkinen P.; Feist D.G.; Morino I.; Kadygrov N.; Belikov D.; Maksyutov S.; Matsunaga T.; Uchino O.; Watanabe H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:3
起始页码: 1493
结束页码: 1512
语种: 英语
英文关键词: GOSAT algorithms
Scopus关键词: Algorithms ; Atmospheric chemistry ; Data processing ; Greenhouse gases ; Light scattering ; Probability density function ; Weather satellites ; Atmospheric carbon dioxide ; Determination coefficients ; Greenhouse gases observing satellites ; Ground-based remote sensing ; Path modifications ; Photon path length ; Satellite observations ; Standard deviation ; Carbon dioxide ; aerosol ; algorithm ; comparative study ; correlation ; data processing ; estimation method ; GOSAT ; greenhouse gas ; light scattering ; probability density function
英文摘要: This report is the second in a series of companion papers describing the effects of atmospheric light scattering in observations of atmospheric carbon dioxide (CO2) by the Greenhouse gases Observing SATellite (GOSAT), in orbit since 23 January 2009. Here we summarize the retrievals from six previously published algorithms; retrieving column-averaged dry air mole fractions of CO2 (XCO2) during 22 months of operation of GOSAT from June 2009. First, we compare data products from each algorithm with ground-based remote sensing observations by Total Carbon Column Observing Network (TCCON). Our GOSAT-TCCON coincidence criteria select satellite observations within a 5°radius of 11 TCCON sites. We have compared the GOSAT-TCCON XCO2 regression slope, standard deviation, correlation and determination coefficients, and global and station-to-station biases. The best agreements with TCCON measurements were detected for NIES 02.xx and RemoTeC. Next, the impact of atmospheric light scattering on XCO2 retrievals was estimated for each data product using scan by scan retrievals of light path modification with the photon path length probability density function (PPDF) method. After a cloud pre-filtering test, approximately 25% of GOSAT soundings processed by NIES 02.xx, ACOS B2.9, and UoL-FP: 3G and 35% processed by RemoTeC were found to be contaminated by atmospheric light scattering. This study suggests that NIES 02.xx and ACOS B2.9 algorithms tend to overestimate aerosol amounts over bright surfaces, resulting in an underestimation of X CO2 for GOSAT observations. Cross-comparison between algorithms shows that ACOS B2.9 agrees best with NIES 02.xx and UoL-FP: 3G while RemoTeC X CO2 retrievals are in a best agreement with NIES PPDF-D. Key PointsWe summarize GOSAT CO2 retrievals from six previously published algorithmsCO2 retrievals from each algorithm were compared with ground-based TCCON dataAn algorithm cross-comparison has been performed ©2013. American Geophysical Union. All Rights Reserved.
资助项目: BU2599/1-1 ; DP0879468 ; DP110103118 ; LE0668470 ; LP0562346
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63960
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: National Institute for Environmental Studies, Tsukuba, Japan; California Institute of Technology, Pasadena, CA, United States; School of Chemistry, Centre for Atmospheric Chemistry, University of Wollongong, Wollongong, NSW, Australia; Institute of Environmental Physics, University of Bremen, Bremen, Germany; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Colorado State University, Fort Collins, CO, United States; Karlsruhe Institute of Technology, IMK-ASF, Karlsruhe, Germany; SRON Netherlands Institute for Space Research, Utrecht, Netherlands; Earth Observation Science, Space Research Centre, University of Leicester, Leicester, United Kingdom; Karlsruhe Institute of Technology, IMK-IFU, Garmisch-Partenkirchen, Germany; National Institute of Water and Atmospheric Research, Wellington, New Zealand; FMI-Arctic Research Center, Sodankylä, Finland; Max Planck Institute for Biogeochemistry, Jena, Germany; Laboratoire des Sciences du Climat et de l'Environnement, CEA, UVSQ, SNRS, Gif-sur-Yvette, France

Recommended Citation:
Oshchepkov S.,Bril A.,Yokota T.,et al. Effects of atmospheric light scattering on spectroscopic observations of greenhouse gases from space. Part 2: Algorithm intercomparison in the GOSAT data processing for CO<inf>2</inf> retrievals over TCCON sites[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(3)
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