Method and device for monitoring water environment in sunk ponding region

Abstract

The invention provides a method and a device for monitoring a water environment in a sunk ponding region. The method for monitoring the water environment in the sunk ponding region, provided by the invention, comprises the following steps: determining a current range of the sunk ponding region according to current satellite image data; acquiring current satellite spectrum data corresponding to the sunk ponding region according to the current range of the sunk ponding region; determining a current reflectance value of the sunk ponding region according to the corresponding current satellite spectrum data; and determining a current water environment parameter of the sunk ponding region according to the current reflectance value and a model of the reflectance and the water environment parameter of the sunk ponding region. According to the method for monitoring the water environment in the sunk ponding region, provided by the invention, the problems of limitation by manpower, material resources, weather and hydrologic conditions when the water environment is monitored in a water region in a fixed point and fixed profile manner, limited sampling quantity and scale, and high cost of long-term and large-scale tracking and monitoring in the prior art are solved.

Description

technical field [0001] The invention relates to environmental monitoring technology, in particular to a water environment monitoring method and device in a subsidence water accumulation area. Background technique [0002] Industrial development and excavation activities have caused surface land subsidence in many areas. Due to rainfall or the accumulation of groundwater at high phreatic levels, widespread but shallow subsidence water accumulation areas have been formed. The water depth of these subsidence accumulation water areas is generally within 30 meters. Due to subsidence The relatively closed water body in the subsidence water area, combined with domestic sewage discharge from enterprises and residents, and the use of pesticides and fertilizers, has resulted in eutrophication of the water environment in subsidence water accumulation areas. The change of land type, especially the monitoring of the water area and water depth in the subsidence water area, can provide an ...

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Problems solved by technology

[0005] The invention provides a water environment monitoring method and device in a subsidence water accumulation area, which is used to solve the limitation of manpower, material resources, climate and hydrological conditions in the existing fixed-point and fixed-section water environment monitoring in the water area, and the limited number and scale of sampling , the high cost of long-term and large-scale tracking and monitoring

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