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29 August 2005 Evaluation of broadband and hyperspectral IR sounders
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The High spectral resolution infrared radiances from the Atmospheric InfraRed Sounder (AIRS) onboard the NASA's Earth Observing System (EOS) Aqua satellite are used to retrieve atmospheric temperature and water vapor profiles, etc. Evaluation of these retrieved parameters is performed by a comparison with the operational products from current Geostationary Operational Environmental Satellite (GOES) sounder, radiosonde observations (RAOBs) at the Atmospheric Radiation Measurement (ARM) Program Cloud and Radiation Test Bed (CART) site in Oklahoma, United States. Comparisons show that the physical-based AIRS retrievals agree with the RAOBs from the ARM CART site with a Root Mean Square Error (RMSE) of 1 K on average for temperature profiles above 850hPa, and approximately 10% on average for relative humidity profiles. With its improved spectral resolution, AIRS depicts more detailed structure than the current Geostationary Operational Environmental Satellite (GOES) sounder when comparing AIRS sounding retrievals with the operational GOES sounding products. The advancement of hyperspectral IR sounder in deriving atmospheric parameters over the current broadband IR sounder is demonstrated and analyzed
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Xuebao Wu, Jun Li, Allen Huang, and Paul Menzel "Evaluation of broadband and hyperspectral IR sounders", Proc. SPIE 5890, Atmospheric and Environmental Remote Sensing Data Processing and Utilization: Numerical Atmospheric Prediction and Environmental Monitoring, 589005 (29 August 2005);

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