Reservoir water storage amount remote sensing and ground concurrent monitoring method

Abstract

A reservoir water storage amount remote sensing and ground concurrent monitoring method is as follows: multi-period reservoir water monitoring remote sensing images can be acquired from archived satellite data sources, and the remote sensing images can be pretreated; reservoir water surface area can be extracted from the pretreated remote sensing images; ground synchronous monitoring reservoir water level can be acquired from a ground monitoring station; a correctional relation curve of the reservoir water level and the reservoir water surface area can be established; according to the correctional relation curve of the reservoir water level and the reservoir water surface area, a correctional relation curve of the reservoir water level and reservoir storage capacity can be acquired; when a new satellite data source is available, the above steps are repeated, the relation curve of the reservoir water level and the reservoir storage capacity can be updated and corrected; the reservoir water level can be monitored by the ground monitoring station, and the reservoir water storage capacity corresponding to the monitoring water level can be obtained by conversion according to the corrected relation curve of the reservoir water level and the reservoir storage capacity. The reservoir water storage amount remote sensing and ground concurrent monitoring method can effectively eliminate the influence of the characteristic curve changes of the reservoir after a long time running on reservoir water storage amount, and improves the accuracy of the reservoir water storage condition monitoring.

Description

technical field [0001] The invention relates to the field of monitoring and evaluation of reservoir water storage conditions, in particular to a remote sensing and ground collaborative monitoring method for reservoir water storage. Background technique [0002] There are 98,002 small-scale or above reservoirs in my country, and 2,865 lakes with a water area larger than 1 square kilometer all year round. Most of these small and medium-sized water bodies in these surface water sources lack direct and objective monitoring information. come difficult. On the other hand, a large number of large and medium-sized reservoirs have been built for many years. Due to the change of bank slope shape caused by sedimentation and erosion in the reservoir area, the characteristic curve of the reservoir has changed. However, the characteristic curve of the reservoir is remeasured according to the traditional ground measurement method. The volume is huge, and it is difficult to carry out regula...

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for remote sensing and ground collaborative monitoring of reservoir water storage, which overcomes the error problem in the estimation of reservoir water storage caused by relying solely on ground monitoring and the difficulty of regularly updating the reservoir characteristic curve in the prior art

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