Typhoon regional disaster assessment method based on change of chlorophyll-a content in seawater

Abstract

The present invention discloses a typhoon regional disaster assessment method based on the change of chlorophyll-a content in seawater. The method comprises the following steps: S101, obtaining satellite data; S102, preprocessing the satellite data; S103 obtaining chlorophyll-a content and the rate of change of the chlorophyll-a content before and after the arrival of typhoon through satellite inversion calculation; and S104, establishing a typhoon regional disaster model S1 based on the rate of change of the content of chlorophyll-a. According to the typhoon regional disaster assessment method based on the change of chlorophyll-a content in seawater disclosed by the present invention, the rate of change of the chlorophyll-a content in the typhoon regional seawater before and after the arrival of typhoon is obtained through satellite inversion calculation, and a typhoon regional disaster model based on the rate of change of the content of chlorophyll-a is established, so that the windlevels in any specific typhoon region can be measured more accurately in real time; and a new means of verification is provided for the assessment of wind levels.

Description

technical field [0001] The invention relates to the application of satellite inversion technology and the field of ocean physics modeling, in particular to a typhoon regional disaster assessment method based on the change of chlorophyll a content in seawater. Background technique [0002] my country is one of the countries that are seriously affected by typhoons in the world. Over the years, the southeastern coastal provinces and even inland areas of my country have caused heavy economic losses and casualties due to typhoon disasters. In recent years, with global climate change, the frequency and uncertainty of typhoons have become more prominent. How to estimate the degree of harm in the typhoon area and help ships in the sea area where the typhoon occurs is an urgent problem. At present, the main solution is to use meteorological satellites to carry out weather forecasts and disaster warnings through cloud images, and then close ports and ships, and adopt a passive method...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a typhoon regional disaster assessment method based on the change of chlorophyll a content in seawater, which solves the problem of inaccurate assessment of typhoon regional disasters in the prior art

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