Power grid equipment area convection weather forecasting method based on cross correlation tracking method

Abstract

The invention discloses a power grid equipment area convection weather forecasting method based on a cross correlation tracking method, comprising the steps of: determining radar echo motion vector characteristics in dependence on radar historic data; performing extrapolation calculation on radar echo and wind fields in dependence on the radar echo motion vector characteristics to obtain extrapolated radar echo and wind fields; and performing superposed display and analysis on extrapolated radar echo and wind fields, and power grid equipment geographic information. In the power grid equipment area convection weather forecasting method, radar echo is extrapolated to obtain motion vector characteristics of future radar echo; nowcasting of radar echo and wind fields in future is performed by utilizing the motion vector characteristics; and the technology is applied to an electric power GIS system to obtain power grid area equipment echo intensity and wind field forecasting early warning information.

Description

technical field [0001] The invention relates to a meteorological nowcasting method, in particular to a method for forecasting convective weather in a power grid equipment area based on a cross-correlation tracking method, and belongs to the technical field of meteorological disaster forecasting. Background technique [0002] Traditional power meteorological services are mainly based on large-scale conventional forecasts, and the forecast products lack pertinence and diversity, and cannot fully meet the needs of power production scheduling. As the public, especially meteorological public personnel, have higher and higher requirements for weather forecast and meteorological services, refined forecasting has become an inevitable trend in the development of meteorological services. [0003] Although conventional meteorological forecasts can use traditional synoptic methods (weather map identification) and numerical forecasting methods, based on the large circulation background a...

AI Technical Summary

Problems solved by technology

Tracking Radar Echoes by Correlation (TREC) is one of the earliest algorithms used to track the movement of radar echoes, but only the strength and movement trend of the precipitation system can be obtained from the future position and intensity shape of the echoes. Unable to obtain wind field information directly

In addition, the Doppler weather radar can only measure the radial velocity of the precipitation material leaving the radar at any point along the radar, that is, the radar average radial velocity map, which may be different from the actual observed wind field

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