Method and system for automatically identifying and storing element water flow in urban water flow simulation

Abstract

The invention discloses a method and a system for automatically identifying and storing element water flow in urban water flow simulation. The system comprises an element objectification identification and virtual storage module, an element objectification input grid generation module, an element-based spatial discrete grid generation module, an element association grid index identification module, a grid flow time sequence statistics module and an element water flow dynamic organization and management module. The method comprises the following steps: performing objectification identification and virtual storage on urban surface elements, performing spatial discrete grid element marking on urban surface hydrological elements, performing statistics on water flow of each urban surface hydrological element at each simulation moment by using a grid flow time sequence, and performing unified organization and management on the obtained urban surface water language element water flow information, and providing related interfaces for other programs to inquire and use. The key hydrological information acquisition capability and the urban rainfall flood process modeling and simulation application capability in urban rainfall flood process modeling and simulation are improved.

Description

technical field [0001] The invention belongs to the technical field of geographic information, and in particular relates to a method and system for automatic identification and storage of water flow of elements in urban water flow simulation. Background technique [0002] In recent years, under the dual effects of rapid urbanization and global climate change, urban flood disasters have occurred frequently, seriously affecting people's lives and the safety of life and property. Many new technologies and methods have been applied to solve the problem of urban flooding, so as to improve the ability of urban stormwater infrastructure planning and disaster management departments to deal with urban flood disasters. Among them, the simulation model of urban water flow process is based on its water flow in complex urban environments. The advantages of revealing the law of motion and predicting and analyzing the dynamic evolution of flood disasters have been widely used in the preven...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the existing urban storm flood process modeling and simulation, and provide a method to improve the urban storm flood process modeling and Key hydrological information acquisition ability in simulation and urban rain and flood process modeling and simulation application ability Automatic identification and storage method of element water flow in urban water flow simulation

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