Flood disaster warning water area remote sensing survey method

A technology for flood disasters and water areas, which is applied in the field of disaster monitoring and remote sensing monitoring of flood disasters, and achieves the effect of strong reliability and good promotion and application prospects

Inactive Publication Date: 2010-06-09
REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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Embodiment Construction

[0019] The present invention utilizes satellite remote sensing data to carry out the technical process of remote sensing survey of warning waters as follows figure 1 shown. Using this method, the technical process of remote sensing investigation of multi-level flood warning waters is as follows:

[0020] ①Establishment of warning waters cognition and interpretation sign sample map

[0021] Propose the warning water area for flood disasters, carry out cognition of the warning water area according to different remote sensing images, establish interpretation signs, and establish a sample map of the warning water area.

[0022] ②Standardized processing of remote sensing surveys in warning waters

[0023] Vectorize topographic maps of different scales, carry out image radiation correction, enhancement, and color synthesis according to the information characteristics of warning waters, use topographic maps for geometric fine correction, and crop watersheds for NOAA / AVHRR and MODIS...

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Abstract

The invention provides a flood disaster warning water area remote sensing survey method, belonging to the field of disaster monitoring. The flood disaster remote sensing monitoring has no uniform objective standard, thus the disaster remote sensing monitoring results can not reflect actual situation of the disaster; and the invention puts forward a concept of the flood disaster warming water area, formulates the remote sensing survey technology and regulations, establishes the flood disaster warning water area remote sensing database of the main river basin in China and provides quantitative standards and basis for judging and estimating the flood disaster. The invention is a background element of the estimation on the flooding disaster loss, has certain warning and indicating effects and can greatly improve the flood disaster remote sensing control emergency response speed. The flood disaster warning water area remote sensing survey method comprises five units of warning water area awareness and interpretation mark sample establishment, warning water area remote sensing survey standardized processing, warning water area information extraction, warning water area assignment and splicing, and warning water area integration and management. The survey method can provide scientific basis for the decisions of flood protection and disaster relief, thus having great social and economic benefits.

Description

technical field [0001] It belongs to the field of disaster monitoring, especially the technical field of remote sensing monitoring of flood disasters. Background technique [0002] my country is a country with frequent flood disasters. Every year, flood disasters cause heavy losses to the life and property of the country and people. The government and relevant departments urgently need to quickly obtain scientific data on disaster situations to make disaster relief and mitigation decisions. As a new space observation technology, remote sensing has the characteristics of wide range, sustainable observation, and not affected by weather, and plays an irreplaceable role in flood disaster monitoring. However, due to the lack of a unified evaluation standard, different departments use the same remote sensing data to monitor and evaluate flood disasters in the same region and period, and the results are often very different, resulting in divergence in decision-making. On the basis...

Claims

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Application Information

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IPC IPC(8): G01S7/48
Inventor 王世新周艺王丽涛赵清
Owner REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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