登陆后热带气旋降水修正因子获取方法、热带气旋降水修正方法、终端及介质

CN122063714BActive Publication Date: 2026-07-17ZHEJIANG INST OF METEOROLOGICAL SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG INST OF METEOROLOGICAL SCI
Filing Date
2026-04-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing tropical cyclone precipitation estimation models fail to effectively consider comprehensive factors such as changes in water vapor sources in their correction factors, resulting in low accuracy of precipitation distribution information.

Method used

By obtaining the precipitation ratio and landfall time of each path point of a tropical cyclone, a precipitation ratio distribution curve is constructed. Function fitting is performed to obtain an initial comprehensive attenuation coefficient, which is then constrained based on the historical comprehensive attenuation range. A post-landfall tropical cyclone precipitation correction factor is constructed to correct the tropical cyclone precipitation distribution information.

Benefits of technology

It has improved the accuracy of tropical cyclone precipitation distribution information, and enhanced the accuracy of precipitation forecasts and disaster predictions, especially in the Northwest Pacific region.

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Abstract

本发明提供一种登陆后热带气旋降水修正因子获取方法、热带气旋降水修正方法、终端及介质;其中,所述方法包括:获取所述热带气旋初始的综合衰减系数,和获取工作区的历史综合衰减范围;基于所述历史综合衰减范围对所述初始的综合衰减系数进行约束,以获取最终的综合衰减系数;基于所述最终的综合衰减系数和所述初始地综合衰减系数,构建登陆后热带气旋降水修正因子;本发明获取的登陆后热带气旋降水修正因子可以有效地提升各登陆后路径点所对应热带气旋降水分布的准确性,从而提高了热带气旋降水预报、灾害预测等的准确性。
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Citation Information

Patent Citations

  • Tropical cyclone precipitation correction method based on terrain, terminal and medium

    CN117077442A

  • Tropical cyclone precipitation model construction method, terminal and medium

    CN118211360A