Nutrient status of inland water in key regions of the world in 2018

The trophic state of water body refers to the eutrophication degree of water body, which is generally classified according to the content of nutrients in water body. According to the nutritional status of water body, the water body can be divided into three categories: poor nutrition, medium nutrition and eutrophication. The eutrophic water body is the water body with low nutrient content and poor biota; the moderately eutrophic water body is between the eutrophic water body and the eutrophic water body; the eutrophic water body refers to the water body with high nutrient content, less plankton species but high biomass. This data set is based on sentinel 2A / b sensor data to produce quarterly water nutrition status products in key regions of the world. The data includes two bands. The first band is the water nutrition status (1: poor nutrition, 2: moderate nutrition, 3: eutrophication), and the second band is the amount of data used for quarterly synthesis. Including regions: Beijing Tianjin Hebei, Yangtze River Delta, Pearl River Delta, Sri Lanka, Indiana.