Real-time Dynamic Attenuation Correction and Precipitation Calculation Method of Rain Radar

A technology of real-time dynamics and calculation methods, applied in the field of atmospheric science, can solve problems such as large precipitation errors

Active Publication Date: 2017-08-29
邓勇 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the advancement of radar and raindrop spectrometer technology, the present invention proposes a method for real-time and dynamic attenuation correction and precipitation calculation of rain radar by using the synchronous measurement of laser raindrop spectrometer and rain radar to solve the problem of single radar quantitative Problems with large errors in estimating precipitation

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
  • Real-time Dynamic Attenuation Correction and Precipitation Calculation Method of Rain Radar
  • Real-time Dynamic Attenuation Correction and Precipitation Calculation Method of Rain Radar
  • Real-time Dynamic Attenuation Correction and Precipitation Calculation Method of Rain Radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 As shown, the real-time dynamic attenuation correction and precipitation calculation method of the rainfall radar of the present invention comprises the following steps:

[0031] 1. Obtain the radar reflectivity factor Zm(R) of the rainfall radar plane position scan in a certain period of time.

[0032] 2. Read the radar reflectivity factor Zp(R) and rain intensity Ip(R) measured by multiple laser raindrop spectrometers at the same time.

[0033] 3. Match Zm(R) and Zp(R) in space, and calculate the c and d coefficients in formula (1) that change with time.

[0034] 4. Bring the c and d coefficients into (2) to perform real-time attenuation correction on a bank-by-bank basis for the rainfall radar.

[0035] 5. Match Zp(R) and Ip(R) in time and space, and calculate or fit the a and b coefficients that vary with time according t...

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 present invention discloses a rainfall radar real-time dynamic attenuation correction and precipitation calculation method. Through the precipitation particle information obtained in real time and the improvement of a traditional attenuation correction method, the related parameters of real-time dynamic attenuation correction and precipitation calculation are obtained, the errors of radar rainfall estimation brought by local atmosphere, precipitation attenuation and other factors are effectively improved.

Description

technical field [0001] The invention belongs to the field of atmospheric science, and in particular relates to synchronous measurement of a laser raindrop spectrometer and a precipitation radar (precipitation radar), which performs real-time and dynamic attenuation correction and precipitation calculation on the precipitation radar. Background technique [0002] Since the beginning of this century, radar quantitative measurement of precipitation has once again been highly valued by many countries, especially developed countries. The CASA program launched by the United States since 2003 uses four X-band radars to carry out quantitative measurement of precipitation caused by mountain torrents and urban waterlogging; in 2013, Japan plans to build 26 "radar rain gauges" with radar as the core to cover its key points Quantitative measurement of precipitation in floodplains. These radars are mainly used for the measurement of precipitation and have obvious characteristics of rain...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/95G01S7/40G06F19/00
CPCG01S7/40G01S13/95Y02A90/10
Inventor 邓勇钱昆鹏
Owner 邓勇
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap