首页|Global consistency check of AIRS and IASI total CO2 column concentrations using WDCGG ground-based measurements
Global consistency check of AIRS and IASI total CO2 column concentrations using WDCGG ground-based measurements
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NETL
NSTL
万方数据
维普
This article describes a global consistency check of CO2 satellite retrieval products from the Atmospheric Infrared Sounder (AIRS) and Infrared Atmospheric Sounding Interferometer (IASI) using statistical analysis and data from the World Data Centre for Greenhouse Gases (WDCGG).We use the correlation coefficient (r),relative difference (RD),root mean square errors (RMSE),and mean bias error (MBE) as evaluation indicators for this study.Statistical results show that a linear positive correlation between AIRS/IASI and WDCGG data occurs for most regions around the world.Temporal and spatial variations of these statistical quantifies reflect obvious differences between satellite-derived and ground-based data based on geographic position,especially for stations near areas of intense human activities in the Northern Hemisphere.It is noteworthy that there appears to be a very weak correlation between AIRS/IASI data and ten groundbased observation stations in Europe,Asia,and North America.These results indicate that retrieval products from the two satellite-based instruments studied should be used with great caution.
CO2consistency checkAIRSIASIWDCGG
Anyuan DIAO、Jiong SHU、Ci SONG、Wei GAO
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Key Laboratory of Geographic Information Science(Ministry of Education), School of Geographic Sciences, East China Normal University,Shanghai 200241, China
Colorado State University, Department of Ecosystem Science and Sustainability, Fort Collins, Colorado 80523, USA
Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, Colorado 80523, USA
This project was supported by the National Basic Research Program of ChinaMajor Program of National Social Science Foundation of China
NETL
NSTL
万方数据
维普
