FY-3卫星VIRR海表温度产品进展  

Progress of VIRR Sea Surface Temperature Product of FY-3 Satellite

作　　者：王素娟[1] 崔鹏[1] 张鹏[1] 杨忠东[1] 冉茂农 胡秀清[1] 陆风[1] 刘健 

机构地区：[1]中国气象局国家卫星气象中心,北京100081 [2]北京华云星地通科技有限公司,北京100081

出　　处：《上海航天》2017年第4期79-84,共6页Aerospace Shanghai

基　　金：中国气象局国家气象科技创新工程资助(CMAGGTD003-5)

摘　　要：介绍了在过去的5年中根据用户需求FY-3卫星可见光红外扫描辐射计(VIRR)海温产品算法和产品设计的进展。给出了其中主要的国内外海温算法。介绍了FY-3卫星VIRR海温产品的进展:FY-3A星海表温度(SST)用可见光阈值进行云检测,其SST值偏低;FY-3B星SST用云检测产品中的确信晴空进行分纬度带的白天MCSST算法,但整体海温仍偏低;FY-3C星SST在B星的基础上进行了优化,首次反演了夜间海温,并提供了逐像元的质量标识及海温的气候偏差,设计了5km全球海温,实现了5min段海温产品存档,提高了风云海温产品的可靠性、可用性和精度。给出了FY-3C星VIRR海温产品的图像及质量检验情况。归纳了海温产品的同一框架下多级别、多源、高分辨率的发展趋势。将风云卫星海温产品规格与高分辨率海温科学组(GHRSST)GDS2.0的交叉比对,海温科学组认为中国在海温方面的能力在不断增强。研究认为:长序列海温产品重处理以确保海温产品的一致性非常必要,海温产品需采用国际通用海温产品规格。The algorithm and products design for sea surface temperature（SST）of visible and infrared radiometer（VIRR）on FY-3 meteorological satellite were introduced according to the user’s requirement in recent 5 years in this paper.The major SST algorithms in domestic and abroad were given.The development of VIRR SST products of FY-3 satellite was presented.The visible threshold was used for cloud detection in SST of FY-3 A satellite,which SST was lower than the true one.The assurance shine in cloud detection product was used for SST by day MCSST algorithm in FY-3 Bsatellite,which SST was still low in the whole.The SST of FY-3 Csatellite was optimized based on FY-3 Bsatellite.The night SST retrievals was carried first time.The quality mark pixel by pixel and climatic difference of sea temperature were provided.The 5km global sea temperature was designed.The SST products with 5min granule were storied.All have improved the reliability and availability as well as SST product accuracy of FY satellite.The image and quality validation of VIRR SST product of FY-3 Csatellite were given.The development trend of multi-level,multi-source and high resolution under the same frame was summarized for SST product.NSMC/CMA SST specification crosscheck with the GHRSST Data Specification （GDS2.0） of the Group for High Resolution Sea Surface Temperature （GHRSST） is introduced.The Science Team of GHRSST said they saw the growing capability of China in SST.To ensure the consistency of SST products,the reprocessing of longterm global time series of VIRR SST of FY-3 satellite is necessary.Use the uniform SST specifications is the trend of sea temperature products.

关 键 词：风云三号卫星 可见光红外扫描辐射计(VIRR) 海表温度 海温检验 产品规格 GHRSST GDS 交叉比对 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P407[自动化与计算机技术—控制科学与工程]