2019年全球重点区域内陆水体营养状态

水体营养状态是指水体所处的富营养化程度，一般根据水体中的营养物质含量进行分级。按水体的营养状态将水体分为贫营养、中营养和富营养三类。贫营养水体是水体中营养物质含量低、生物区系贫乏的水体；中营养水体介于贫营养和富营养水体之间的类型；富营养水体是指水体中营养物质含量高、浮游生物种类少但生物量高的水体。本数据集是基于Sentinel2A/B传感器数据生产的全球重点区域季度水体营养状态产品，数据包含两个波段，第一波段为水体营养状态（1：贫营养，2：中营养，3：富营养），第二波段为季度合成时所用数据量。包含区域：京津冀、长三角、珠三角、斯里兰卡、印第安纳。Aquatic trophic status refers to the eutrophication level of water bodies, which is generally classified based on the nutrient content in the water. Water bodies are categorized into three types according to their trophic status: oligotrophic, mesotrophic, and eutrophic. Oligotrophic water bodies have low nutrient content and scarce aquatic biota; mesotrophic water bodies are the intermediate type between oligotrophic and eutrophic water bodies; eutrophic water bodies are those with high nutrient content, few phytoplankton species but high biomass. This dataset is a global key regional quarterly aquatic trophic status product generated based on Sentinel-2A/B sensor data. The dataset includes two bands: the first band represents aquatic trophic status (1: oligotrophic, 2: mesotrophic, 3: eutrophic), and the second band represents the number of data used for the quarterly compositing. Covered regions include: Beijing-Tianjin-Hebei Region, Yangtze River Delta, Pearl River Delta, Sri Lanka, and Indiana.

搜集汇总

背景与挑战

背景概述

该数据集基于Sentinel2A/B传感器数据，提供了2019年全球重点区域（包括京津冀、长三角、珠三角、斯里兰卡和印第安纳）的季度内陆水体营养状态产品，空间分辨率为10米，以栅格格式（GeoTiff）呈现，包含营养状态分级（贫营养、中营养、富营养）和合成数据量两个波段，用于监测水体富营养化程度和生态健康评估。