Satellite - Ocean Colour - SNPP - 1 day - Chlorophyll-a concentration (OCI model)

The SNPP satellite platform carries a VIIRS sensor that observes sunlight reflected from within the ocean surface layer at multiple wavelengths. These multi-spectral measurements are used to infer the concentration of chlorophyll-a (Chl-a), most typically due to phytoplankton, present in the water. There are multiple retrieval algorithms for estimating Chl-a. These data use the OCI method (Hu et al 2012, doi: 10.1029/2011jc007395) recommended by the NASA Ocean Biology Processing Group and implemented in the SeaDAS processing software l2gen. The OCI algorithm is described at https://oceancolor....苏奥米国家极轨伙伴卫星（Suomi National Polar-orbiting Partnership, SNPP）搭载可见光红外成像辐射仪（Visible Infrared Imaging Radiometer Suite, VIIRS），该传感器可在多波段下观测海洋表层反射的太阳光。通过这些多光谱测量数据，可以反演水体中叶绿素-a（Chl-a）的浓度——该物质通常由浮游植物所产生。当前已存在多种用于估算叶绿素-a浓度的反演算法。本数据集采用了由美国国家航空航天局（National Aeronautics and Space Administration, NASA）海洋生物学处理小组推荐，且在SeaDAS处理软件的l2gen模块中实现的OCI算法（Hu等，2012年，DOI: 10.1029/2011jc007395）。OCI算法的详细说明可参见https://oceancolor……