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A global glacier search and identification method based on remote sensing cloud computing

A cloud computing and glacier technology, applied in the field of remote sensing target recognition, can solve the problem of increasing the difficulty of accurate glacier identification

Active Publication Date: 2022-07-08
HENAN UNIVERSITY
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Problems solved by technology

These factors add to the difficulty of accurately identifying glaciers

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  • A global glacier search and identification method based on remote sensing cloud computing
  • A global glacier search and identification method based on remote sensing cloud computing

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] like figure 1 As shown, the embodiment of the present invention provides a global glacier search and identification method based on remote sensing cloud computing, and the specific steps are as follows:

[0036] S1. Use the remote sensing cloud platform (Google Earth Engine) to collect five optical satellite images in the summer time range of 2021. The number of pixel rows and columns in these five optical satellite images are ...

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Abstract

The invention proposes a global glacier search and identification method based on remote sensing cloud computing. ; Analyze the difference between the spectrum of glaciers and the spectrum of other ground objects, determine the effective spectral bands and thresholds for identifying glaciers; build a glacier index algorithm, and determine the threshold of the glacier index to distinguish between glaciers and non-glaciers; calculate the summer in the study area based on the glacier index algorithm The glacier index image of each satellite image is obtained, and then the median synthetic image of the summer glacier index image is obtained by the median synthesis algorithm; the effective spectral band of the glacier and its threshold, the median synthetic image of the glacier index and its threshold are used to construct automatic glacier identification. Model to realize remote sensing automatic identification and mapping of glacier distribution. The invention proposes a glacier remote sensing identification model, which can realize accurate and automatic identification of the global glacier distribution by remote sensing.

Description

technical field [0001] The invention relates to the technical field of remote sensing target recognition, in particular to a global glacier search and recognition method based on remote sensing cloud computing. Background technique [0002] Under the background of global climate change, the distribution of glaciers exhibits significant interannual variability. Timely and effective update of glacier distribution data on the global scale has important scientific value for the research on the interaction between climate change and ecological environment. Both glaciers and clouds appear white in the visible light range, and show similar visible light spectral characteristics on optical satellite images. The spectral signature of the glaciers shaded by clouds also changed significantly on optical satellite imagery. These factors increase the difficulty of accurately identifying glaciers. In addition, the wide distribution of glaciers and the large inter-annual variability put ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V20/13G06V10/60G06T5/50
CPCG06T5/50G06T2207/10032G06T2207/30181G06T2207/20221Y02A90/10
Inventor 田海峰罗德文秦耀辰王帅杨梦丹
Owner HENAN UNIVERSITY