Measuring and comparing in-situ CO2 and CO profiles with satellite observations and model data

作     者：YI You LIU Yi CAI Zhaonan FANG Shuangxi YANG Dongxu WANG Yong LIANG Miao YAO Bo MA Qianli WANG Maohua 

作者机构：Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Earth and Planetary ScienceUniversity of Chinese Academy of SciencesBeijingChina Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Meteorological Observation CentreChina Meteorological AdministrationBeijingChina Zhejiang Lin’an Regional Atmosphere Watch StationZhejiangChina 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2019年第12卷第6期

页      面：444-450页

核心收录：

学科分类：0710[理学-生物学] 1002[医学-临床医学] 0908[农学-水产] 0707[理学-海洋科学] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 100214[医学-肿瘤学] 0825[工学-航空宇航科学与技术] 10[医学] 

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences [grant number XDA17010102] the National Natural Science Foundation of China [grant number 41875043] the Key Research Program of the Chinese Academy of Sciences [grant number ZDRW-ZS-2019-1] 

主　　题：Aircore greenhouse gas profile 

摘      要：Accurate measurements of the vertical distribution of carbon dioxide(CO2)in the atmosphere are critical to validate the vertical columns recorded by satellite and ground-based spectrometers and to estimate sources and sinks of *** work describes an in-situ air-sampler system(Aircore).Profiles of CO2 and carbon monoxide(CO)were retrieved from two soundings of this system in Xilin Hot on 13 and 14 June 2018,and compared with observations from the Tropospheric Monitoring Instrument(TROPOMI),Orbiting Carbon Observatory-2(OCO-2),and Copernicus Atmosphere Monitoring Service(CAMS).The column-averaged mixing ratio of CO(XCO)monitored by TROPOMI agreed well with that calculated from the in-situ CO pro le,with a small mean diffierence of 5±1.89 *** column-averaged mixing ratio of CO2(XCO2)monitored by OCO-2 also agreed well with that calculated from the in-situ CO2 profile,with a slight bias of 0.4±0.6 *** OCO-2 a posteriori profile had an obvious bias compared with the in-situ CO2 pro le on 13 June,with an underestimation between 600 hPa and 250 hPa and an overestimation below 600 *** also had the same bias compared with the in-situ CO profile;however,CAMS agreed well with the in-situ CO profile on 14 June in the troposphere because a weak cold vortex passed Xilin Hot on 13 June and disappeared on 14 *** the stratosphere,there were significant biases in the vertical *** striking agreement between the column-averaged mixing ratios and the diffierences in the vertical distribution suggests new exciting applications for the profile product.