A short-term heavy rainfall forecast method and system

A technology for forecasting systems and heavy rainfall, applied in the field of meteorological services, can solve problems such as increased tracking failures and reduced quality of motion vector fields, and achieve the effect of improving performance
CN108646319BInactive Publication Date: 2021-11-09深圳市雅码科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
深圳市雅码科技有限公司
Publication Date
2021-11-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

This application relates to a short-term heavy rainfall forecast method and system. The method includes: step a: reading radar basic data, and performing radar echo quality control processing on the radar basic data; step b: constructing a Fleet constraint based on the radar basic data after the radar echo quality control processing A forecasting system based on the optical flow method; Step c: construct an identification and tracking system based on the Fleet constrained optical flow method according to the forecast system based on the Fleet constrained optical flow method, and perform data analysis and generate and output products of the Fleet optical flow method. This application builds a brand-new forecasting system based on the Fleet constrained optical flow method to solve the problem of echo extrapolation forecasting for local generation and rapid changes in the intensity and shape of rainfall clouds over time, and to improve the accuracy of short-term heavy rainfall weather. Nowcasting System Performance.
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Description

technical field

[0001] The present application belongs to the technical field of meteorological services, and in particular relates to a short-term heavy rainfall forecasting method and system. Background technique

[0002] Short-term heavy rainfall is a type of strong convective weather, which refers to the rainfall of more than 30 mm in a certain place within 3 hours. Short-term heavy rainfall has the characteristics of strong suddenness, strong onset, and concentrated precipitation time. Due to the high intensity and concentrated time of precipitation, short-term heavy rainfall often causes meteorological-derived disasters such as urban waterlogging and landslides, which seriously affects urban operation. even life-threatening. Short-term heavy rainfall often comes and goes in a hurry, and the forecast effect of conventional meteorological forecasting methods is poor. It is very difficult to carry out weather forecast 24 hours in advance. At the same time, due to current...

Claims

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