Method for applying comprehensive quality index to rainfall estimation by combining radar and automatic station
A technology of quality index and application method, applied in the direction of rainfall/precipitation gauge, measuring device, utilization of re-radiation, etc., can solve the problems of inability to correct precipitation and difficulty in real-time correction formula, and achieve the effect of improving ability
Pending Publication Date: 2022-01-21
CHINESE ACAD OF METEOROLOGICAL SCI
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the above studies, the method of optimizing the precipitation estimation formula in real time by combining the rainfall data of automatic stations is only applied to the Z-R relationship of single-polarization or dual-polarization radar. The formula has brought great difficulties. Although Zhang Yang (2019) tried to correct the precipitation estimation formula containing polarization radar parameters in real time to improve the accuracy of precipitation estimation, it did not impose specific restrictions on the data used to correct the formula. This makes it mixed with data that is not suitable for the correction formula. At the same time, the spatial correction method used in it (Zhang Yang, 2019) cannot effectively correct the precipitation in areas far from the radar. At present, there is no relevant technology to solve the above problems
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0052] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the protection scope of the present invention is not limited to the specific details disclosed below. EXAMPLE LIMITATIONS.
[0053] Such as figure 1 As shown, the application method of the comprehensive quality index on the joint radar and automatic station estimation precipitation according to the first embodiment of the pres...
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
Login to view more Abstract
The invention relates to a method for applying a comprehensive quality index to rainfall estimation by combining a radar and an automatic station, and the method comprises the following steps: obtaining a radar estimation rainfall-automatic station observation rainfall data pair and a plurality of radar data quality indexes in a target region, calculating a comprehensive quality index according to the plurality of radar data quality indexes, and calculating an average value of the comprehensive quality index; and correcting the radar estimation rainfall-automatic station observation rainfall data pair according to a first preset threshold value of the corresponding comprehensive quality index average value to obtain final rainfall estimation data. In the technical scheme of the invention, when the comprehensive quality index is applied to the process of jointly estimating rainfall by the radar and the automatic station, the rainfall estimation capability of the networking radar can be further improved.
Description
technical field [0001] The invention relates to the technical field of meteorological data processing, in particular to an application method of a comprehensive quality index in joint radar and automatic station estimation of precipitation. Background technique [0002] As a single-point observation data with high precision, automatic station rainfall data can help radar optimize the results of precipitation estimation. Automatic station rainfall data play two roles in precipitation estimation. One is to combine radar data optimization before calculating precipitation intensity. The precipitation estimation formula, and the other is used for spatial correction after the initial value field of the precipitation estimation product is formed. Since the Z-R relationship will change due to changes in the raindrop spectrum during the same precipitation process (Wu Yahao et al., 2016), so in real-time optimization of the Z-R relationship in conjunction with radar and automatic stat...
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
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01W1/10G01W1/14
CPCG01S13/95G01W1/10G01W1/14Y02A90/10
Inventor 张扬刘黎平吴翀
Owner CHINESE ACAD OF METEOROLOGICAL SCI
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
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