Nutrient status of inland water in key regions of the world in 2017

Nutritional status of water body refers to the eutrophication degree of water body, which is generally classified according to the nutrient content in water body. According to the nutritional status of the water body, the water body is divided into three categories: poor nutrition, medium nutrition and eutrophication. Poor nutrient water body is a water body with low nutrient content and poor biological flora; medium nutrient water body is between poor nutrient and eutrophic water body; eutrophic water body is a water body with high nutrient content, few plankton species but high biomass. This data set is based on Sentinel 2A/B sensor data. It contains two bands. The first band is water nutrition (1: poor nutrition, 2: medium nutrition, 3: eutrophication), and the second band is the data amount used in seasonal synthesis. Including areas: Beijing, Tianjin, Hebei, Yangtze River Delta, Pearl River Delta, Sri Lanka, Indiana.