30 April 2016 Assimilation of hyperspectral radiances in the NCMRWF global forecast system
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Abstract
The availability of high resolution temperature and water vapor data is important for the study of mesoscale scale weather phenomena. As, Atmospheric Infrared Sounder (AIRS), Cross-Track Infrared Sounder (CrIS) and European Infrared Atmospheric Sounding Interferometer (IASI) provide high resolution atmospheric profiles by measuring radiations in many thousands of different channels. The AIRS, on the EOS-Aqua polar-orbiting satellite, was the first of a new generation of meteorological advanced sounders able to provide hyper- spectral data for operational and research use. The CrIS is a Fourier Transform Michelson interferometer instrument launched on board the Suomi National Polar- Orbiting Partnership (Suomi NPP) satellite on 28 October 2011. CrIS is a major step forward in the U.S. operational infrared (IR) sounding capability previously provided by the High-resolution Infrared Spectrometer (HIRS). The IASI is the most advanced instrument carried on the MetOp satellite on 19 October 2006. As a result, demonstration of the benefit of hyper-spectral data on Numerical Weather Prediction (NWP) has been a high priority. This work focuses on the assessment of the potential values of satellite hyper-spectral radiance data in the NGFS (National Centre for Medium Range Weather Forecasting-Global Forecast System). An Observing System Experiments (OSEs) has been conducted to examine the impact of hyper-spectral radiances and detail results are presented.
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Sanjeev Kumar Singh, Sanjeev Kumar Singh, V. S. Prasad, V. S. Prasad, } "Assimilation of hyperspectral radiances in the NCMRWF global forecast system", Proc. SPIE 9880, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI, 98800N (30 April 2016); doi: 10.1117/12.2223533; https://doi.org/10.1117/12.2223533
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