NDLI: Evaluation and intercomparison of the atmospheric CO2 retrievals from measurements of AIRS, IASI, SCIAMACHY and GOSAT

Content Provider	IEEE Xplore Digital Library
Author	Tianxing Wang Jiancheng Shi Yingying Jing
Copyright Year	2012
Description	Author affiliation: State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing, Applications of Chinese Academy of Sciences and Beijing Normal University, 100101, China (Tianxing Wang; Jiancheng Shi; Yingying Jing)
Abstract	Quantifications of the differences among currently available CO2 products are very necessary for deeply understanding each product and their joint use. A spatio-temporal matching strategy has been proposed in this work to allow the CO2 products from AIRS, IASI, GOSAT and SCIAMACHY to be physically comparable by accounting for the a priori CO2 profiles employed in retrieval stage, averaging kernel functions and atmospheric pressure profiles etc. Based on this, these CO2 products are intercompared in terms of magnitudes of CO2 concentrations and their spatio-temporal distributions. The results show that relative large discrepancies are detected among these products, both in specific values of CO2 concentrations and the spatio-temporal distributions, implying more efforts should be made to fully understand the differences of such measurements and to better constrain the uncertainties in CO2 retrievals from space in the future.
Starting Page	1325
Ending Page	1328
File Size	419635
Page Count	4
File Format	PDF
ISBN	9781467311601
ISSN	21536996
e-ISBN	9781467311595
e-ISBN	9781467311588
DOI	10.1109/IGARSS.2012.6351293
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atmospheric measurements Sea measurements Extraterrestrial measurements Kernel Carbon Atmospheric modeling Carbon dioxide GOSAT Atmospheric CO2 AIRS IASI SCIAMACHY
Content Type	Text
Resource Type	Article

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