Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Convective weather approach prediction method and system

A nowcasting and weather technology, applied in the radio wave measurement system, climate sustainability, radio wave reflection/reradiation, etc., can solve the problems of reduced quality of motion vector field, increased tracking failure, etc.

Active Publication Date: 2015-10-14
深圳市气象台
View PDF2 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and system for nowcasting convective weather, aiming to solve the problem that the quality of the motion vector field given by the cross-correlation method is degraded in the current nowcasting of convective weather, resulting in a significant increase in tracking failures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Convective weather approach prediction method and system
  • Convective weather approach prediction method and system
  • Convective weather approach prediction method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0025] In the embodiment of the present invention, the optical flow field of the radar echo is calculated by using the locally constrained optical flow method (Optical Flow), which is used to replace the motion vector field in the cross-correlation method for the approaching of convective weather Forecasting, so that the recognition, tracking and motion estimation of radar echoes can be completed ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the weather prediction and forecast technical field and relates to a convective weather approach prediction method and system. The method includes the following steps that: a radar mosaic in a detection area is acquired; a locally-constrained optical flow method is adopted to perform calculation based on the radar mosaic, so that the optical flow field of radar echoes can be obtained; radar echo extrapolation is performed according to the optical flow field of the radar echoes, so that approach prediction of convective weather can be completed. According to the convective weather approach prediction method and system of the invention, the locally-constrained optical flow method is adopted to perform calculation, so that the optical flow field of the radar echoes can be obtained, and therefore, a motion vector field in a cross-correlation method can be replaced, and thus, tracking and motion estimation of the radar echoes can be completed accurately, and the prediction performance of convective weather approach prediction can be improved.

Description

technical field [0001] The invention belongs to the technical field of weather forecasting, and in particular relates to a nowcasting method and system for convective weather. Background technique [0002] Severe weather forecasting is an important part of the development of the forecasting system, especially for coastal, highly developed and densely populated areas, which are often affected by weather systems such as frontal low troughs, tropical cyclones, and monsoon clouds. Disastrous weather such as thunderstorms, thunderstorms, strong winds, hail, and typhoons often occurs, and it is a disastrous weather-prone area. According to the statistics of authoritative departments, among all kinds of natural disasters that affect cities, more than 80% of the disaster losses are caused by meteorological disasters, and the economic losses caused by meteorological disasters account for about 1% to 3% of the total GDP. Based on the above reasons, meteorological disaster prevention ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S13/95
CPCG01S13/951Y02A90/10
Inventor 曹春燕陈元昭张文海陈训来徐文文李程刘东华
Owner 深圳市气象台
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com