Strong convection weather short-term approaching forecasting method and system, storage medium and terminal

A strong convection and weather technology, applied in weather condition prediction, radio wave measurement system, meteorology, etc., can solve the problems of weak early warning ability, short forecast timeliness, and low forecast accuracy, so as to improve accuracy and reduce false alarms rate effect

Active Publication Date: 2020-06-30
易天气(北京)科技有限公司
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Problems solved by technology

[0004] Most of the current extrapolation forecasting algorithms do not consider the generation and disappearance of the convective system, and the forecast time is short, the forecast accuracy is not high, and there is no classification of strong convective weather forecast; in addition, the traditional way of strong convective weather warning does not consider localization The problem is that the forecast and early warning is only based on the basic data of the weather radar, and its early warning ability is weak and the early warning accuracy is low

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  • Strong convection weather short-term approaching forecasting method and system, storage medium and terminal
  • Strong convection weather short-term approaching forecasting method and system, storage medium and terminal
  • Strong convection weather short-term approaching forecasting method and system, storage medium and terminal

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Embodiment Construction

[0049] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, examples of which are shown in the drawings.

[0050] This embodiment discloses a method for short-term forecasting of severe convective weather, such as figure 1As shown, including: obtaining radar data within a predetermined period of time; constructing a radar extrapolation model based on radar data, and obtaining short-term approaching radar extrapolation data Z; determining the relationship between short-term approaching radar extrapolation data Z and rainfall intensity R According to the conversion relationship between the short-term approaching radar extrapolation data Z and the rainfall intensity R, the short-term approaching precipitation is obtained. Preferably, the radar extrapolation model is constructed according to the radar data, and the following steps are also included before obtaining the radar extrapolation data: filtering and normaliz...

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Abstract

The invention discloses a severe convection weather short-term approaching forecasting method and system, a storage medium and a terminal. The method comprises the steps of obtaining radar data in a preset time period; constructing a radar extrapolation model according to the radar data, and obtaining short-time approaching radar extrapolation data Z; determining a conversion relationship betweenthe short-time approaching radar extrapolation data Z and rainfall intensity R; and according to the conversion relationship between the short-time approaching radar extrapolation data Z and the rainfall intensity R, obtaining short-time approaching precipitation. The method can effectively improve the accuracy of short-term approaching forecasting of severe convection weather, reduces the false alarm rate, and improves the TS score.

Description

technical field [0001] The invention relates to the technical field of meteorological weather forecasting, in particular to a method and system for short-term forecasting of severe convective weather, a storage medium and a terminal. Background technique [0002] Convective weather nowcasting refers to the forecast of the occurrence, development, evolution and extinction of convective weather system and its accompanying disastrous weather in the next few hours (generally 0-2 hours). Nowcasting technology was developed on the basis of extrapolating radar echoes in the 1960s and 1970s. In the past ten years, with the further development of weather radar technology, especially the completion of the network deployment of the new generation of Doppler weather radar WSR88D in the United States and some European countries, the research on convective weather nowcasting technology based on radar data It's going fast. In today's world, many advanced nowcasting systems have been deve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01W1/10
CPCG01S13/95G01W1/10Y02A90/10
Inventor 贺晓冬曹蕾宗勇刘雨薇周同乐
Owner 易天气(北京)科技有限公司
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