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Proceedings Paper

Assimilation of CrIS hyperspectral radiances in a 4D-Var assimilation system
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Paper Abstract

This study demonstrates the advantage of the assimilation of Cross-track Infrared Sounder (CrIS) radiances of the Suomi-NPP satellite observation using 4D-Var assimilation system with global NCMRWF Unified Model (NCUM). The observation pre-processing system, quality control and thinning strategy for CrIS observations in addition to the impact of this observation in the analysis also discussed. Observation bias statistics are computed against the NCUM model fields from a short-range forecast (background) for quality control. The impact on forecasts is evaluated using “Observing System Simulation Experiments (OSSE's)”. The combined effect of hyperspectral and microwave radicalizes. The results show that CrIS data reduces the total number of observations and increases the RMS values for hyperspectral radiances.

Paper Details

Date Published: 30 April 2016
PDF: 7 pages
Proc. SPIE 9880, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI, 98800Q (30 April 2016); doi: 10.1117/12.2222775
Show Author Affiliations
Swapan Mallick, National Ctr. for Medium Range Weather Forecasting (India)
Indira Rani S., National Ctr. for Medium Range Weather Forecasting (India)
Desamsetti Srinivas, National Ctr. for Medium Range Weather Forecasting (India)
John P. George, National Ctr. for Medium Range Weather Forecasting (India)


Published in SPIE Proceedings Vol. 9880:
Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications VI
Allen M. Larar; Prakash Chauhan; Makoto Suzuki; Jianyu Wang, Editor(s)

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