Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra
文献类型：期刊论文
| 作者 | Oshio, Haruki7; Yoshida, Yukio7; Matsunaga, Tsuneo7; Deutscher, Nicholas M.8; Dubey, Manvendra9; Griffith, David W. T.8; Hase, Frank10; Iraci, Laura T.11; Kivi, Rigel12; Liu, Cheng13,14 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 12 |
| 关键词 | methane proxy method GOSAT TCCON |
| DOI | 10.3390/rs12193155 |
| 通讯作者 | Oshio, Haruki(oshio.haruki@nies.go.jp) |
| 英文摘要 | The proxy method, using the ratio of total column CH4 to CO2 to reduce the effects of common biases, has been used to retrieve column-averaged dry-air mole fraction of CH4 from satellite data. The present study characterizes the remaining scattering effects in the CH4/CO2 ratio component of the Greenhouse gases Observing SATellite (GOSAT) retrieval and uses them for bias correction. The variation of bias between the GOSAT and Total Carbon Column Observing Network (TCCON) ratio component with GOSAT data-derived variables was investigated. Then, it was revealed that the variability of the bias could be reduced by using four variables for the bias correction-namely, airmass, 2 mu m band radiance normalized with its noise level, the ratio between the partial column-averaged dry-air mole fraction of CH4 for the lower atmosphere and that for the upper atmosphere, and the difference in surface albedo between the CH4 and CO2 bands. The ratio of partial column CH4 reduced the dependence of bias on the cloud fraction and the difference between hemispheres. In addition to the reduction of bias (from 0.43% to 0%), the precision (standard deviation of the difference between GOSAT and TCCON) was reduced from 0.61% to 0.55% by the correction. The bias and its temporal variation were reduced for each site: the mean and standard deviation of the mean bias for individual seasons were within 0.2% for most of the sites. |
| WOS关键词 | METHANE EMISSIONS ; CARBON-DIOXIDE ; DIFFERENTIAL ABSORPTION ; ATMOSPHERIC CO2 ; TANSO-FTS ; SWIR XCO2 ; 4 CORNERS ; XCH4 ; SCIAMACHY ; ALGORITHM |
| 资助项目 | European Space Agency (ESA)[4000120088/17/I-EF] ; German Bundesministerium fur Wirtschaft und Energie (BMWi) via the Deutsche Zentrum fur Luft-und Raumfahrt (DLR)[50EE1711D] ; GOSAT series project ; Australian Research Council[FT180100327] ; Australian Research Council[DP160101598] ; Australian Research Council[DP140101552] ; Australian Research Council[DP110103118] ; Australian Research Council[DP0879468] ; Australian Research Council[LE0668470] ; NASA[NAG5-12247] ; NASA[NNG05-GD07G] ; Sorbonne Universite ; French research center CNRS ; French space agency CNES ; Region Ile-de-France ; Energy Development Corp, Philippines ; University ofWollongong |
| WOS研究方向 | Remote Sensing |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000587173300001 |
| 资助机构 | European Space Agency (ESA) ; German Bundesministerium fur Wirtschaft und Energie (BMWi) via the Deutsche Zentrum fur Luft-und Raumfahrt (DLR) ; GOSAT series project ; Australian Research Council ; NASA ; Sorbonne Universite ; French research center CNRS ; French space agency CNES ; Region Ile-de-France ; Energy Development Corp, Philippines ; University ofWollongong |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/105101]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Oshio, Haruki |
| 作者单位 | 1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA 2.Japan Aerosp Explorat Agcy JAXA, Tsukuba, Ibaraki 3058505, Japan 3.Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Environm Re, D-82467 Garmisch Partenkirchen, Germany 4.PSL Univ, Sorbonne Univ, CNRS,Observ Paris, Lab Etud Rayonnement & Mat Astrophys & Atmosphere, F-75005 Paris, France 5.Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada 6.Univ Bremen, Inst Environm Phys, D-28359 Bremen, Germany 7.Natl Inst Environm Studies, Ctr Global Environm Res, Tsukuba, Ibaraki 3058506, Japan 8.Univ Wollongong, Ctr Atmospher Chem, Fac Sci Med & Hlth, Sch Earth Atmospher & Life Sci, Wollongong, NSW 2522, Australia 9.Los Alamos Natl Lab, Los Alamos, NM 87545 USA 10.Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK ASF, D-76021 Karlsruhe, Germany |
| 推荐引用方式 GB/T 7714 | Oshio, Haruki,Yoshida, Yukio,Matsunaga, Tsuneo,et al. Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra[J]. REMOTE SENSING,2020,12. |
| APA | Oshio, Haruki.,Yoshida, Yukio.,Matsunaga, Tsuneo.,Deutscher, Nicholas M..,Dubey, Manvendra.,...&Wunch, Debra.(2020).Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra.REMOTE SENSING,12. |
| MLA | Oshio, Haruki,et al."Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra".REMOTE SENSING 12(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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