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The CrIMSS EDR Algorithm: Characterization, Optimization, and Validation
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DOI：10.1002/2013JD020438.png)
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The Cross-track Infrared Sounder (CrIS) and the Advanced Technology Microwave Sounder (ATMS) instruments aboard the Suomi National Polar-orbiting Partnership satellite provide high-quality hyperspectral infrared and microwave observations to retrieve atmospheric vertical temperature and moisture profiles (AVTP and AVMP) and many other environmental data records (EDRs). The official CrIS and ATMS EDR algorithm, together called the Cross-track Infrared and Microwave Sounding Suite (CrIMSS), produces EDR products on an operational basis through the interface data processing segment. The CrIMSS algorithm group is to assess and ensure that operational EDRs meet beta and provisional maturity requirements and are ready for stages 1-3 validations. This paper presents a summary of algorithm optimization efforts, as well as characterization and validation of the AVTP and AVMP products using the European Centre for Medium-Range Weather Forecasts (ECMWF) analysis, the Atmospheric Infrared Sounder (AIRS) retrievals, and conventional and dedicated radiosonde observations. The global root-mean-square (RMS) differences between the CrIMSS products and the ECMWF show that the AVTP is meeting the requirements for layers 30-300hPa (1.53K versus 1.5K) and 300-700hPa (1.28K versus 1.5K). Slightly higher RMS difference for the 700hPa-surface layer (1.78K versus 1.6K) is attributable to land and polar profiles. The AVMP product is within the requirements for 300-600hPa (26.8% versus 35%) and is close in meeting the requirements for 600hPa-surface (25.3% versus 20%). After just one year of maturity, the CrIMSS EDR products are quite comparable to the AIRS heritage algorithm products and show readiness for stages 1-3 validations.
Keyword:
CrIMSS
CrIS
ATMS
EDR
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IF:
3.4
论文数:
2.2W
被引数:
7.7W
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