System and method for simulating regional rainfall process

A technology for simulating systems and regions, applied in teaching models, instruments, liquid injection devices, etc., can solve the problems of inconsistent rainfall, inability to simulate, and large errors in simulation experiments

Inactive Publication Date: 2013-06-12
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two problems in the existing large-scale simulated rainfall systems: First, these simulated rainfall systems can only realize the simulation of the rainfall process with the same rainfall intensity in the studied rainfall area
However, due to the characteristics of natural rainfall, the variation trend of rainfall intensity and its internal distribution at each point in the region have obvious inhomogeneity, that is, in the same region during the same rainfall process, the rainfall status of each point in the region is not consistent
However, the existing rainfall simulation system cannot simulate the inconsistent rainfall in the region.
Secondly, because the existing meteorological data cannot collect rainfall data at any point in the region, and there is no need to do so, but if the rainfall changes at these points are ignored in the simulation process, the result is that the simulation accuracy of the rainfall process is insufficient. The error of the simulation experiment is too large to meet the needs of scientific applications, and even lead to wrong conclusions
In short, due to the above problems, the current large-scale rainfall simulation systems in the world cannot accurately simulate the regional rainfall process, and their experimental parameters can only be used as reference data for qualitative analysis or rough quantitative analysis.

Method used

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  • System and method for simulating regional rainfall process
  • System and method for simulating regional rainfall process
  • System and method for simulating regional rainfall process

Examples

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Embodiment 1

[0021] This embodiment is a simulation system of a regional rainfall process, such as figure 1 shown. This embodiment includes: a hydrometeorological database, the hydrometeorological database is connected with the rainfall process generation subsystem, the rainfall process generation subsystem is connected with the rainfall process control subsystem, and the rainfall process control subsystem is connected with the simulated rainfall Subsystem connection, the rainfall process control subsystem is connected with multiple rainfall sensors installed on the regional physical model (limited to the limitation of drawing, figure 1 Only 10 rain sensors are drawn in , in practice each sprinkler unit should have at least one or two rain sensors). The rainfall process control subsystem can be a computer system with control and processing capabilities such as a general computer or an industrial control computer. The hydrometeorological database includes: a regional climate model databas...

Embodiment 2

[0042] This embodiment is an improvement of Embodiment 1, and it is a refinement of the spraying unit array in Embodiment 1. In the spraying unit array of this embodiment, four adjacent spraying units are arranged in a diamond shape, and the spraying unit array is arranged in a criss-cross pattern as a whole, such as image 3 shown.

[0043] The arrangement of the spraying unit array described in this embodiment is a form of horizontal alignment and vertical row staggered arrangement, or vertical row alignment and horizontal row staggered arrangement ( image 3 Aligned vertically and staggered horizontally). In the figure, the small circle with solid line represents the spraying unit, the large dotted circle represents the spraying range of one spraying unit, and the four adjacent spraying units form a diamond shape, such as image 3 Indicated by the thick dotted line box in the upper left corner. The spraying ranges of several adjacent spraying units overlap each other, fo...

Embodiment 3

[0045] This embodiment is an improvement of the above-mentioned embodiment, and it is a refinement of the above-mentioned embodiment about the spraying unit, such as Figure 4 shown. The spraying unit described in this embodiment is surrounded by three types of spraying heads of large 102, medium 103 and small 101 to form an equilateral triangle, forming a spraying unit with three spraying heads.

[0046] The three nozzles described in this embodiment can spray raindrops of different sizes to form a complete raindrop spectrum, which can simulate various natural rainfall processes. The equilateral triangles are arranged so that the spraying areas of the three nozzles overlap each other and do not interfere with each other. When spraying, one, two or three nozzles can be turned on as needed to form different rain intensity and raindrop spectrum.

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Abstract

The invention relates to a system for simulating the regional rainfall process, which comprises a hydro-meteorological database, a rainfall process generation subsystem, a rainfall process control subsystem and a rainfall simulation subsystem, and further comprises a regional climate model database, a station information database, a regional climate model, a station information interpolation device, a scale transformation device, a water spray control device, a water supplying device, a spray device, and a sensor mounted on a regional physical model, wherein spray units are arranged crosswise to form a spray unit array. Through the integration of the hydro-meteorological database, the rainfall process generation subsystem, the rainfall process control system and the rainfall simulation units, the generation and the simulation of the past, present and future rainfall processes in the designated area are achieved. The natural rainfall process can be better simulated, and the system has an important scientific research value in the fields of the watershed runoff generation and flow routing process, the research on hydrology and water resources in the lack-data watershed, the inspection and the optimization of the hydrographic station net arrangement, and the intelligence watershed research, and provides a scientific tool for simulation study and application of the regional hydrology.

Description

technical field [0001] The present invention relates to a simulation system and method of regional rainfall process, which is a system and method for scientific experiment and natural ecological simulation, and is an artificial rainfall system with accurate simulation ability of past, present and future regional rainfall process and methods. Background technique [0002] Large-scale simulated rainfall systems are generally large-scale experimental systems funded by the state, used for scientific experiments or development research projects of large-scale disaster prevention and mitigation or resource protection and development and utilization projects. Such as: the simulated rainfall system developed by the ADMI company of the United States, as well as the University of Tsukuba, the Japan Institute of Disaster Prevention Science and Technology, the Institute of Soil and Water Conservation of the Ministry of Water Resources of the Chinese Academy of Sciences, Chang'an Univers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B9/00B05B12/00G09B25/00
Inventor 龚家国王浩秦大庸贾仰文郝春沣刘家宏杨贵羽冶运涛丁相毅
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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