Rainfall space interpolation method and system, electronic equipment and readable storage medium
A technology of spatial interpolation and interpolation, applied in climate sustainability, design optimization/simulation, electrical digital data processing, etc., can solve problems such as failure to consider the impact of rainfall changes, and achieve the effect of improving accuracy
Active Publication Date: 2021-10-26
TSINGHUA UNIV
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[0059] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0060] Combine below figure 1 Describe a kind of rainfall spatial interpolation method of the present invention, this method comprises:
[0061] S1. Select N stations closest to the interpolation target grid, and obtain the first weight coefficient of each station in the N stations on the interpolation target grid, where N is a positive integer not greater than 8;
[0062] For example, you ...
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The invention provides a rainfall spatial interpolation method and system, electronic equipment and a readable storage medium, and the method comprises the steps: selecting N sites closest to an interpolation target grid, and obtaining a first weight coefficient of each site in the N sites on the interpolation target grid; adjusting the first weight coefficient according to a direction relationship between each station and an interpolation target grid to obtain a second weight coefficient; dividing a target area into different sub-areas based on the topographic change features, and obtaining a main slope direction of each sub-area; adjusting the second weight coefficient based on the main slope direction of each sub-region and according to the slope direction relation between the interpolation target grid and the sub-region where the station is located to obtain a third weight coefficient; establishing a rainfall elevation gradient relationship of the sub-regions; and based on the third weight coefficient and the rainfall elevation gradient relationship, calculating the surface rainfall of the target region, and obtaining a rainfall spatial interpolation result. According to the invention, the precision of the rainfall space interpolation result can be improved.
Description
technical field [0001] The invention relates to the technical field of watershed rainfall spatial interpolation, in particular to a rainfall spatial interpolation method and system, electronic equipment and a readable storage medium. Background technique [0002] Rainfall is the main input item of the watershed hydrological model, and its spatial distribution characteristics are of great significance to regional water resource management, flood disaster prediction, and ecological environment governance. With the development of technology, rainfall data can be obtained not only by ground station observation but also by means of weather radar and meteorological satellites, among which ground station observation is still the most reliable way at present. There is a problem of discontinuous spatial distribution of station observation data, so it is necessary to establish a dense rainfall station network to obtain accurate rainfall spatial distribution. However, the number of tel...
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IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02Y02A90/10
Inventor 韩俊太杨雨亭侯颖
Owner TSINGHUA UNIV