River ice coverage remote sensing monitoring method, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a river ice coverage remote sensing monitoring method, electronic equipment and a storage medium, and the method comprises the steps: carrying out the river water and river ice discrimination of a cloudless part of a river surface, and then carrying out the river water and river ice discrimination of a cloudy part of the river surface; obtaining a river water area of the river surface to be observed, a river ice area of the river surface to be observed and a cloud coverage area of the river surface to be observed in each river surface optical image; gridding the river water area of the river surface to be observed, the river ice area of the river surface to be observed and the cloud coverage area of the river surface to be observed in each river surface optical image to obtain a river ice coverage proportion time sequence of each river surface grid; determining river ice phenological information of each river surface grid according to the riverice coverage proportion time sequence of each river surface grid; introducing the river ice phenological information of each river surface grid into a preset fitting curve, and screening the river icephenological information in the preset fitting curve through a preset threshold to obtain final river ice phenological information of each river surface grid, thereby effectively improving detectionprecision.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a remote sensing monitoring method for river ice coverage, electronic equipment and a storage medium. Background technique [0002] River ice ruptures earlier in spring, but the data from sparsely distributed hydrological stations cannot reflect the rupture pattern of the entire river basin and the process of freezing and rupture of river ice cannot be observed throughout the river. It is difficult to understand how climate warming affects river ice rupture. At present, satellite remote sensing plays an important role in the monitoring of river ice dynamics due to its large-scale, rapid, periodic, multi-scale, multi-temporal, and low-cost advantages, and has great potential to assess large-scale river ice breakup patterns. Therefore, optical data with high temporal resolution are suitable for monitoring river ice phenology and mapping the extent of river ice sheets...

AI Technical Summary

Problems solved by technology

[0002]River ice breaks up early in spring, but data from sparsely distributed hydrological stations cannot reflect the breakup pattern across the watershed and ice breakup cannot be observed across the river process, it is difficult to understand how climate warming affects the breaking up of river ice

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