Calculation method, system, equipment and storage medium of urban rainstorm intensity
An urban rainstorm and intensity calculation technology, which is applied in the field of equipment, computer-readable storage media, urban rainstorm intensity calculation methods and systems, and can solve the problems of a small number of meteorological monitoring sites, uneven quality, and lack of data. The effect of short site construction time, guaranteed accuracy and less site data
Active Publication Date: 2022-03-15
CHINA MACHINERY INT ENG DESIGN & RES INST
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Problems solved by technology
However, the number of meteorological monitoring stations in most cities in my country is small, the construction time is short, and the rainfall data records have problems such as long time intervals, uneven quality, and missing data, which greatly affects the applicability of the traditional rainstorm intensity formula.
At present, most cities only compile urban rainstorm intensity formulas based on a single rainfall monitoring station, and have not considered the differences in the spatial distribution of rainfall at the urban scale in the compilation of urban rainstorm intensity formulas. The rainstorm division was carried out, but it was still based on the rainfall records of multiple meteorological stations in the city. Factors such as the number and distribution of rainfall monitoring stations, the integrity, rationality and representativeness of rainfall data historical records have a greater impact on the results; At the same time, in the division of rainstorm divisions, the influence of terrain, underlying surface and other factors are not considered, which can easily cause distortion in some areas
In addition, the urban drainage and waterlogging prevention system and sponge city system designed based on the rainstorm intensity formula usually need long-term service after completion. Therefore, the urban drainage and waterlogging prevention system and sponge city system planning and design should include future urban rainfall characteristics. However, the formulation of traditional rainstorm intensity formulas is based on historical rainfall records, which can only reflect the current urban rainfall characteristics, and lack the prediction of urban rainfall characteristics changes in the future under the background of climate change
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[0052] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0053] Such as figure 1 As shown, the preferred embodiment of the present invention provides a kind of urban rainstorm intensity calculation method based on spatio-temporal distribution characteristics, including the following:
[0054] Step S1: Construct a regional meteorological model and set the simulation area and simulation grid cell size of the target city, and obtain the optimal model configuration scheme suitable for the simulation of rainfall events in the target city;
[0055] Step S2: Use the obtained optimal model configuration scheme to configure the regional meteorological model, use the configured regional meteorological model to perform historical rainfall simulation and / or future rainfall simulation, and obtain the historical rainfall time series ...
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The invention discloses a method, system, equipment and storage medium for calculating urban rainstorm intensity. By constructing a regional meteorological model, the method can simulate the process of any rainfall event and the temporal and spatial distribution of urban-scale gridded rainfall intensity. Then, the regional meteorological model can be used to The model performs rainfall simulation to obtain the historical rainfall time series data and / or future rainfall time series data of each simulated grid unit, and finally calculates the historical rainstorm intensity and / or future rainstorm intensity respectively, and calculates the rainstorm intensity based on the simulated data based on the regional meteorological model. Not only can it be well applied to areas where rainfall records are not enough to support the analysis of rainstorm intensity, but it can also be used to predict the change process of urban design rainstorm intensity in different periods in the future under the background of climate change, and provide a basis for the design of urban wading systems, urban flood control and drainage. , Sponge city construction, etc. provide tools for fine design and evaluation.
Description
technical field [0001] The invention relates to the technical field of urban drainage and waterlogging prevention, in particular to a calculation method, system, equipment, and computer-readable storage medium for urban rainstorm intensity based on temporal and spatial distribution characteristics. Background technique [0002] Designing storm intensity is an important basis and premise for the planning, design, and evaluation of wading systems in my country's urban construction. Whether the urban rainstorm intensity formula is scientific and reasonable, and whether it objectively reflects the characteristics and laws of urban rainfall directly affects the foundation of urban drainage and waterlogging prevention. The planning of facility construction and sponge city construction and the design and construction of engineering projects will further affect the investment scale of the entire drainage project construction, as well as the performance of the system and maintenance co...
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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor包正铎贺卫宁吴羽璇陈蕃邓征宇
OwnerCHINA MACHINERY INT ENG DESIGN & RES INST