Retrieval validation during the European Aqua Thermodynamic Experiment

Zhou, D.K., W.L. Smith, C.V. Cuomo, D.J.P. Taylor, C. Barnet, F.P. Di Girolamo, G.G. Pappalardo, A.M. Larar, X.L. Xu Liu, S.M. Newman, C. Leee, and S.A. Mangoh (2007), Retrieval validation during the European Aqua Thermodynamic Experiment, Q. J. R. Meteorol. Soc., 133, 3-203, doi:10.1002/qj.181.
Abstract

Atmospheric and surface thermodynamic parameters retrieved with advanced hyperspectral remote sensors aboard Earth observing satellites are critical to weather prediction and scientific research. The retrieval algorithms and retrieved parameters from satellite sounders must be validated to demonstrate the capability and accuracy of both observation and data processing systems. The European Aqua Thermodynamic Experiment (EAQUATE) was conducted not only for validation of the Atmospheric InfraRed Sounder on the Aqua satellite, but also for assessment of validation systems of both ground-based and aircraft-based instruments that will be used for other satellite systems, such as the Infrared Atmospheric Sounding Interferometer on the European MetOp satellite, the Cross-track Infrared Sounder from the National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project and the continuing series of NPOESS satellites. Detailed intercomparisons were conducted and presented using different retrieval methodologies: measurements from airborne ultraspectral Fourier transform spectrometers, aircraft in situ instruments, dedicated dropsondes and radiosondes, ground-based Raman lidar, as well as the European Centre for Medium-range Weather Forecasting modelled thermal structures. The results of this study not only illustrate the quality of the measurements and retrieval products, but also demonstrate the capability of the validation systems put in place to validate current and future hyperspectral sounding instruments and their scientific products. Copyright Y 2007 Royal Meteorological Society

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