IMOS - Satellite Remote Sensing - NOAA20 - 01 day - Chlorophyll-a concentration (OC3 model)

The NOAA20 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 OC3 method recommended by the NASA Ocean Biology Processing Group and implemented in the SeaDAS processing software l2gen. The OC3 algorithm is described at http://oceancolor.gsfc.nasa.gov/cms/atbd/chlor_a (and links therein).

NOAA20卫星平台搭载VIIRS传感器，可在多个波长下观测海洋表层反射的太阳光。这些多光谱测量数据用于推断水体中叶绿素a（chlorophyll-a，Chl-a）的浓度——该物质主要来源于浮游植物。存在多种反演算法（retrieval algorithms）用于估算叶绿素a浓度。本数据集采用由美国国家航空航天局（NASA）海洋生物处理组（Ocean Biology Processing Group）推荐、并在SeaDAS处理软件的l2gen模块中实现的OC3方法。OC3算法的描述可参见http://oceancolor.gsfc.nasa.gov/cms/atbd/chlor_a（及其中的链接）。