河湖“清四乱”监测

通过卫星遥感技术，对河流、湖泊、坑塘、水库等现状情况及变化趋势进行监测，对目标水域的水体富营养化、总磷、总氮等水质指标进行反演，对水利工程实施和建设进度进行跟踪监测，对河湖“四乱”行为进行监测排查，帮助用户快速掌握水域面积和水质变化情况、水利工程设施的建设进展情况以及追溯河湖“四乱”整治情况。

Utilizing satellite remote sensing technology, this dataset conducts monitoring on the current status and variation trends of various water bodies including rivers, lakes, ponds, reservoirs and other water areas; retrieves water quality indicators such as water eutrophication, total phosphorus (TP) and total nitrogen (TN) for target water areas; tracks and monitors the implementation and construction progress of water conservancy projects; and carries out monitoring and investigation on the four chaotic illegal behaviors in rivers and lakes. It enables users to quickly grasp the changes in water area and water quality, the construction progress of water conservancy facilities, and trace the rectification progress of the four chaotic problems in rivers and lakes.