Method and device for determining river level, computer equipment, and readable storage medium

Abstract

The invention provides a method and device for determining river level, computer equipment, and a readable storage medium. The method comprises: determining a target footprint closest to a middle position of the water in the current period according to a waveform and a water range of a echo signal reflected by the water to the satellite; determining that the waveform of the echo signal corresponding to the target footprint is an effective waveform if the waveform of the echo signal corresponding to the target footprint satisfies a preset condition; and performing a waveform re-operation on theeffective waveform to obtain a river level corresponding to the target footprint in the current period according to the season of the current period. The waveform re-operation comprises performing the waveform re-operation on the effective waveform by using a waveform re-algorithm corresponding to the season. The method greatly improves the calculation accuracy of the river level in the mountainous area, and improves the accuracy of the river level in the mountainous area by selecting different waveform re-algorithms in different seasons.

Description

technical field [0001] The invention relates to the field of water conservancy, in particular to a method, device, computer equipment and readable storage medium for determining the water level of a river. Background technique [0002] Rivers play a pivotal role in the development of human society and economy, and the vast majority of people live in coastal areas. Therefore, the acquisition of river water level is of great significance for flood forecasting, disaster prevention and mitigation, and water resource management. However, it is very difficult to establish hydrological stations near rivers and lakes in high-altitude areas and remote areas to obtain river water levels. [0003] In traditional technology, satellite altimetry products are usually used to obtain the river water level, specifically: use the waveform data provided by satellite altimetry products, and use waveform resetting methods, such as the center of gravity offset method, to reset the river water le...

AI Technical Summary

Problems solved by technology

[0004] However, the accuracy of river water levels determined in traditional techniques is low

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