Basin design flood space-time distribution calculation method
A technology for designing floods and time-space distribution, which is applied in the field of system software, can solve problems such as inconvenient calculation results, comparison of results of different schemes, inability to quickly and intuitively display calculation results, and low accuracy of interpolation results, so as to reduce heavy workload, The effect of reducing error and improving accuracy
Pending Publication Date: 2021-01-15
SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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Problems solved by technology
[0017] 1. The calculation results cannot be quickly and intuitively displayed, and it is not convenient to test the calculation results and compare the results of different schemes;
[0018] 2. Manually consulting the rainstorm atlas for interpolation calculation is inefficient, and the accuracy of interpolation results is low;
[0019] 3. Only a single watershed can be consulted and calculated at a time, with low flexibility and efficiency
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[0071] In order to enable those skilled in the art to better understand the solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0072] A preferred embodiment is given below:
[0073] Please refer to Figure 1-5 , a watershed design flood spatio-temporal distribution calculation method in this embodiment, first, based on GIS technology, vectorize the paper-based rainstorm parameter atlas, and then use hydrological analysis tools to generate watershed grids and their center points, and then pass Generate rainstorm parameter raster data and spatial interpolation ...
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The invention relates to the technical field of system software, and particularly provides a basin design flood space-time distribution calculation method, which comprises the following steps: performing vectorization processing on a paper version rainstorm parameter atlas based on a GIS (Geographic Information System) technology, generating basin grids and central points thereof by using a hydrological analysis tool, obtaining basin center related parameter values through rainstorm parameter grid data generation and spatial interpolation analysis, connecting a database table, calculating basin grid design rainstorm in batches through a program, carrying out time-history allocation, and calculating basin grid design flood in batches by utilizing a design rainstorm calculation result; and finally, visually displaying the design rainstorm and design flood spatial distribution condition of the drainage basin grid. Compared with the prior art, the invention has the advantages that the problem that errors and inaccuracy are caused when rainstorm parameters are looked up manually in a traditional method is solved, meanwhile, the calculation efficiency of design flood is greatly improved,spatial distribution visual display of basin grid design rainstorm and design flood is achieved based on GIS, and a decision basis is provided for related engineering planning, flood control evaluation and other work.
Description
technical field [0001] The invention relates to the technical field of system software, and specifically provides a method for calculating the temporal and spatial distribution of watershed design floods. Background technique [0002] Usually in the planning and design of water conservancy projects, urban and factory drainage projects, etc., it is necessary to refer to the design flood calculation results. However, in the process of calculating the design flood of small watersheds, there are often insufficient or lacking data on the measured flow in the watershed. [0003] The currently commonly used derivation method is as follows: first deduce the design rainstorm, and then deduce the design net rain, flood peak, flood volume and design flood process through runoff and confluence calculations. [0004] (1) Calculate the design rainstorm [0005] Due to the lack of hydrological data in general small watersheds, it is difficult to obtain long series of rainstorm data. Ther...
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Login to View More IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 龙倩赵维波唐启龙
Owner SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD