Glacier substance balance amount obtaining method and device, computer equipment and storage medium

Abstract

The invention relates to a glacier substance balance amount obtaining method and device, computer equipment and a storage medium. The method comprises the following steps: obtaining the basin elevation difference of a glacier region in a to-be-measured region according to the initial elevation difference of the to-be-measured region in a calculation period; wherein the basin elevation difference is the variation of the surface elevation of the glacier area obtained after the initial elevation difference is calibrated according to the reference elevation difference obtained by the calibration elevation model of the to-be-measured area and the reference elevation model of the to-be-measured area; wherein the correction elevation model is a digital elevation model of the to-be-measured area obtained after correction operation is performed according to the reference model; obtaining the glacier area of the glacier area according to the optical image data and the radar image data of the to-be-measured area in the calculation period; the glacier substance balance amount in the calculation period is obtained according to the basin elevation difference and the glacier area, so that the accuracy of the obtained glacier substance balance amount is improved, and an accurate data basis is provided for glacier water resource change research and glacier disaster research.

Description

technical field [0001] The present application relates to the technical field of glacier mass balance, in particular to a method, device, computer equipment and storage medium for obtaining glacier mass balance. Background technique [0002] In the context of the increasingly prominent global climate change, the growth or retreat of glaciers provides ideal research conditions for studying global climate change. Moreover, the area where glaciers and permafrost develop is generally the water resource formation area of ​​several rivers, and the fluctuation of glaciers and permafrost has a very important impact on the seasonal, interannual and interdecadal changes of the runoff of these rivers. In addition, climate warming has led to intensified melting of glaciers, which has increased the risk of disasters such as avalanches, ice avalanches, landslides, mudslides, and glacial lake collapses, which have seriously threatened the safety of life and property of residents in the reg...

AI Technical Summary

Problems solved by technology

[0003] In the traditional technology, due to the large footprint of CryoSat-2 and some problems in the official waveform resetting, the accuracy of the results obtained by using CryoSat-2 data to study the surface elevation changes of mountain glaciers is very low, and it is impossible to study the changes of glacier water resources. and glacier disaster research to provide accurate data basis

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