System and method for satellite short-time approaching rainfall forecasting

Abstract

The invention discloses a system for satellite short-time approaching rainfall forecasting. The system is characterized by comprising a first subsystem used for receiving and processing satellite data, a second subsystem used for cloud detection and cloud classification, a third subsystem used for rainfall estimation and a fourth subsystem used for cloud motion wind deduction and rainfall forecasting. The first subsystem is connected with a second subsystem connected with a third subsystem. The fourth subsystem is respectively connected with the second subsystem and the third subsystem. A method for rainfall forecasting is further disclosed. The method includes first receiving and processing the satellite data, then conducting cloud detection and cloud classification, then conducting rainfall estimation and conducting approaching rainfall forecasting finally. The system and the method can provide abundant weather products and are good in issuing timeliness, high in issuing frequency, capable of conducting real-time issuing, capable of forecasting short-time approaching rainfall and high in forecasting accuracy.

Description

technical field [0001] The invention relates to a precipitation forecasting system, in particular to a satellite short-term nowcasting precipitation forecasting system. The invention also relates to a precipitation forecasting method based on the precipitation forecasting system. The invention belongs to the field of precipitation forecasting. Background technique [0002] With the rapid development of meteorological satellite and space-borne detector technology, more and more attention has been paid to the study of cloud detection, cloud classification and precipitation forecast using satellite data. Meteorological satellites are mainly divided into two types: polar-orbiting meteorological satellites and geostationary meteorological satellites. Polar-orbiting meteorological satellites have high spatial resolution, but the access period is long, which cannot meet the requirements of short-term update and real-time monitoring of meteorological information; geostationary meteor...

AI Technical Summary

Problems solved by technology

Threshold classification standards and methods produce classification results with low precision and many misjudgments

Moreover, the current precipitation estimation products only estimate the amount of rainfall in the past, and do not predict the area and intensity of future precipitation, and fail to make full use of satellite resources for large-scale monitoring and forecasting

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