A New Global Solar-induced Chlorophyll Fluorescence(SIF)Data Product from TanSat Measurements  

作　　者：Lu YAO Dongxu YANG Yi LIU Jing WANG Liangyun LIU Shanshan DU Zhaonan CAI Naimeng LU Daren LYU Maohua WANG Zengshan YIN Yuquan ZHENG 

机构地区：[1]Key Laboratory of Middle Atmosphere and Global Environment Observation,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China [4]Key Laboratory of Digital Earth Science,Institute of Remote Sensing and Digital Earth,Chinese Academy of Sciences,Beijing 100094,China [5]National Satellite Meteorological Center,China Meteorological Administration,Beijing 100081,China [6]Changchun Institute of Optics,Fine Mechanics and Physics,Changchun 130033,China [7]Shanghai Engineering Center for Microsatellites,Shanghai 201210,China

出　　处：《Advances in Atmospheric Sciences》2021年第3期341-345,共5页大气科学进展（英文版）

基　　金：This study was supported by the National Key R&D Program of China(No.2016YFA0600203);the Key Research Program of the Chinese Academy of Sciences(ZDRW-ZS-2019-1&ZDRW-ZS-2019-2);the Youth Program of the National Natural Science Foundation of China(41905029).The TanSat L1B data service was provided by the International Reanalysis Cooperation on Carbon Satellite Data(IRCSD)(131211KYSB20180002)and the Cooperation on the Analysis of Carbon Satellite Data(CASA).The authors thank the OCO-2 team for providing the Level-2 SIF data products.

摘　　要：The Chinese Carbon Dioxide Observation Satellite Mission(TanSat)is the third satellite for global CO2 monitoring and is capable of detecting weak solar-induced chlorophyll fluorescence(SIF)signals with its advanced technical characteristics.Based on the Institute of Atmospheric Physics Carbon Dioxide Retrieval Algorithm for Satellite Remote Sensing(IAPCAS)platform,we successfully retrieved the TanSat global SIF product spanning the period of March 2017 to February 2018 with a physically based algorithm.This paper introduces the new TanSat SIF dataset and shows the global seasonal SIF maps.A brief comparison between the IAPCAS TanSat SIF product and the data-driven SVD(singular value decomposition)SIF product is also performed for follow-up algorithm optimization.The comparative results show that there are regional biases between the two SIF datasets and the linear correlations between them are above 0.73 for all seasons.The future SIF data product applications and requirements for SIF space observation are discussed.

关 键 词：TanSat solar-induced chlorophyll fluorescence retrieval algorithm remote sensing 

分 类 号：P412.27[天文地球—大气科学及气象学] X831[环境科学与工程—环境工程]