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A New TanSat XCO2 Global Product towards Climate Studies
Advances in Atmospheric Sciences ( IF 5.8 ) Pub Date : 2020-12-23 , DOI: 10.1007/s00376-020-0297-y Dongxu Yang , Yi Liu , Hartmut Boesch , Lu Yao , Antonio Di Noia , Zhaonan Cai , Naimeng Lu , Daren Lyu , Maohua Wang , Jing Wang , Zengshan Yin , Yuquan Zheng
Advances in Atmospheric Sciences ( IF 5.8 ) Pub Date : 2020-12-23 , DOI: 10.1007/s00376-020-0297-y Dongxu Yang , Yi Liu , Hartmut Boesch , Lu Yao , Antonio Di Noia , Zhaonan Cai , Naimeng Lu , Daren Lyu , Maohua Wang , Jing Wang , Zengshan Yin , Yuquan Zheng
The 1st Chinese carbon dioxide (CO 2 ) monitoring satellite mission, TanSat, was launched in 2016. The 1st TanSat global map of CO 2 dry-air mixing ratio (XCO 2 ) measurements over land was released as version 1 data product with an accuracy of 2.11 ppmv (parts per million by volume). In this paper, we introduce a new (version 2) TanSat global XCO 2 product that is approached by the Institute of Atmospheric Physics Carbon dioxide retrieval Algorithm for Satellite remote sensing (IAPCAS), and the European Space Agency (ESA) Climate Change Initiative plus (CCI+) TanSat XCO 2 product by University of Leicester Full Physics (UoL-FP) retrieval algorithm. The correction of the measurement spectrum improves the accuracy (@#@0.08 ppmv) and precision (1.41 ppmv) of the new retrieval, which provides opportunity for further application in global carbon flux studies in the future. Inter-comparison between the two retrievals indicates a good agreement, with a standard deviation of 1.28 ppmv and a bias of −0.35 ppmv.
更新日期：2020-12-23
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