The TanSat mission： preliminary global observations

作     者：Yi Liu Jing Wang Lu Yao Xi Chen Zhaonan Cai Dongxu Yang Zengshan Yin Songyan Gu Longfei Tian Naimeng Lu Daren Lyu 

作者机构：Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 China University of Chinese Academy of Sciences Beijing 100049 China Shanghai Engineering Center for Microsatellites Shanghai 201210 China National Satellite Meteorological Center China Meteorological Administration Beijing 100081 China 

基　　金：supported by the National Key R & D Program of China (2016YFA0600203) the National High-tech Research and Development Program (2011AA12A104) External Cooperation Program of the Chinese Academy of Sciences (GJHZ1507) the National Key R & D Program of China (2017YFB0504000) 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2018年第63卷第18期

页      码：1200-1207页

摘      要：The Chinese global carbon dioxide monitoring satellite (Tan Sat) was launched successfully in December2016 and has completed its on-orbit tests and calibration. Tan Sat aims to measure the atmospheric column-averaged dry air mole fractions of carbon dioxide (XCO_2) with a precision of 4 ppm at the regional scale, and in addition, to derive global and regional CO2fluxes. Progress towards these objectives is reviewed and the first scientific results from Tan Sat measurements are presented. Tan Sat on-orbit tests indicate that the Atmospheric Carbon dioxide Grating Spectrometer is in normal working status and is beginning to produce L1B products. The preliminary Tan Sat XCO_2products have been retrieved by an algorithm and compared to NASA Orbiting Carbon Observatory-2 (OCO-2) measurements during an overlapping observation period. Furthermore, the XCO_2retrievals have been validated against eight groundsite measurement datasets from the Total Carbon Column Observing Network, for which the preliminary conclusion is that Tan Sat has met the precision design requirement, with an average bias of 2.11 *** first scientific observations are presented, namely, the seasonal distributions of XCO_2over land on a global scale.

主 题 词：二氧化碳 精确测量 科学观察 监视卫星 干燥空气 NASA 精确设计 地区性 

学科分类：07[理学] 070601[070601] 0706[理学-大气科学类] 

核心收录：

D　O　I：10.1016/j.scib.2018.08.004

馆 藏 号：203349733...