1 September 2017 Comparison of AIRS/AMSU temperature and moisture retrievals with matched ERA-interim and radiosonde measurements over East China
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Abstract
The accuracy of the temperature and humidity profiles from the Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) is evaluated using three month of collocated datasets over East China. The AIRS/AMSU retrievals, radiosonde data (RAOB), and the ERA-Interim data from European Center for medium Range Forecast (ECMWF) are used in this validation. This study also compares the AIRS/AMSU retrieved profiles with it only retrieved by AIRS. Results of the entire intercomparison reveal that the RMSE of temperature profiles are in very good agreement with all cases, whilst the relative humidity RMSE show larger difference. Compared with RAOB for the AIRS/AMSU retrievals and ERA-Interim data, it is found that the ERA-Interim temperature and humidity profiles are superior to AIRS retrievals except the humidity in upper troposphere. The accuracy of AIRS/AMSU retrievals is a little bit better than only AIRS retrieved profile product.
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Yaru Gu, Yan-An Liu, Cunyou Si, Siying Cao, Maosi Chen, "Comparison of AIRS/AMSU temperature and moisture retrievals with matched ERA-interim and radiosonde measurements over East China", Proc. SPIE 10405, Remote Sensing and Modeling of Ecosystems for Sustainability XIV, 1040512 (1 September 2017); doi: 10.1117/12.2273334; https://doi.org/10.1117/12.2273334
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