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VIIRS land surface albedo product: Algorithm development and validation

机译:VIIRS地表反照率产品:算法开发和验证

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Visible Infrared Imaging Radiometer Suite (VIIRS) land surface albedo (LSA) product is one of the routinely generated VIIRS environmental data records (EDR). A direct estimation approach based on radiative transfer simulation was developed to directly estimate instantaneous LSA value from VIIRS clear-sky top-of-atmosphere (TOA) reflectance. Comprehensive validations and evaluations were performed by comparing VIIRS LSA retrieval with ground measurements, MODIS 16-day mean albedo product, and Landsat high-resolution albedo estimation. Recently, an algorithm framework was also developed to produce a new gridded and temporal-filtered VIIRS LSA product, which is expected to provide spatially and temporally continuous LSA map with improved accuracy, and facilitate the analysis and application of global LSA data.
机译:可见红外成像辐射计套件(VIIRS)地表反照率(LSA)产品是常规生成的VIIRS环境数据记录(EDR)之一。开发了一种基于辐射转移模拟的直接估算方法,可以从VIIRS晴空大气(TOA)反射率直接估算瞬时LSA值。通过将VIIRS LSA取回与地面测量,MODIS 16天平均反照率积和Landsat高分辨率反照率估算值进行比较,进行了全面的验证和评估。最近,还开发了一种算法框架来生产新的经过网格化和时间滤波的VIIRS LSA产品,该产品有望提供具有更高准确性的时空连续LSA地图,并有助于分析和应用全局LSA数据。

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