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XCO sub(2) satellite retrieval experiments in short-wave infrared spectrum and ground-based validation

Based on the optimal estimation method, a satellite XCO sub(2) retrieval algorithm was constructed by combining LBLRTM with VLIDORT. One-year GOSAT/TANSO observations over four TCCON stations were tested by our algorithm, and retrieval results were compared with GOSAT L2B products and ground-based F...

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Bibliographic Details
Published in:Science China. Earth sciences 2015-07, Vol.58 (7), p.1191-1197
Main Authors: Zhou, MinQiang, Zhang, XingYing, Wang, PuCai, Wang, ShuPeng, Guo, LiLi, Hu, LieQun
Format: Article
Language:English
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Summary:Based on the optimal estimation method, a satellite XCO sub(2) retrieval algorithm was constructed by combining LBLRTM with VLIDORT. One-year GOSAT/TANSO observations over four TCCON stations were tested by our algorithm, and retrieval results were compared with GOSAT L2B products and ground-based FTS measurements. Meanwhile, the influence of CO sub(2) line mixing effect on retrieval was estimated, and the research showed that neglecting CO sub(2) line mixing effect could result in approximately 0.25% XCO sub(2) underestimation. The accuracy of XCO sub(2) retrievals was similar to GOSAT L2B products at cloud-free footprints with aerosol optical depth less than 0.3, and 1% accuracy of XCO sub(2) retrievals can be reached based on the validation result with TCCON measurements.
ISSN:1674-7313
1869-1897
DOI:10.1007/s11430-015-5080-z