Precipitation estimation method and device

A technology for detecting data and reflectivity factors, which is applied in the field of meteorological estimation, can solve problems such as unsatisfactory results, and achieve the effect of accurate precipitation intensity data and guaranteed accuracy

Active Publication Date: 2019-08-02
BEIJING METABTAR RADAR
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Problems solved by technology

[0004] However, limited by the degree of matching between the fitted ZI relationship and its actual application environment, the current precipitation estimation based on the above ZI relationship is not ideal

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  • Precipitation estimation method and device
  • Precipitation estimation method and device

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Embodiment Construction

[0049]In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0050] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such tha...

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Abstract

An embodiment of the invention discloses a precipitation estimation method and device. The method comprises the following steps: according to PPI scanning data of a Doppler weather radar, determiningreflectivity factor intensity data; according to a preset reflectivity factor intensity conversion relation, converting the reflectivity factor intensity data into target reflectivity factor intensitydata, wherein the reflectivity factor intensity conversion relation is determined based on the temporal and spatial difference between the scanning data of the Doppler weather radar and detection data of a raindrop spectrometer; based on a target ZI relation, determining precipitation intensity data corresponding to the target reflectivity factor intensity data; and according to the precipitationintensity data, determining accumulated rainfall amount within a preset estimation time period. The method can effectively ensure accuracy of precipitation estimation.

Description

technical field [0001] The present application relates to the technical field of meteorological estimation, in particular to a precipitation estimation method and device. Background technique [0002] As a common disastrous weather phenomenon, heavy precipitation will have a certain impact on people's daily life and social economy. The continuous occurrence of heavy precipitation may lead to disasters such as urban waterlogging, landslides, and debris flows. At present, Doppler weather radar is mainly used to monitor strong weather processes such as heavy precipitation. Doppler weather radar has the characteristics of high temporal and spatial resolution, and has broad application prospects in the fields of quantitative precipitation monitoring and short-term forecasting. [0003] With the application of Doppler weather radar in precipitation estimation more and more widely, domestic and foreign scholars have done a lot of research on the algorithm of Doppler weather radar i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/10G01W1/14G01S13/95
CPCG01S13/95G01W1/10G01W1/14Y02A90/10
Inventor 郭佳张持岸罗丽
Owner BEIJING METABTAR RADAR
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