A Distributed Hebei Model Construction Method and Its Application

Abstract

The invention relates to a novel distributed Hebei model construction method and application thereof. The novel distributed Hebei model construction method comprises the following steps that firstly, drainage basin generalization is carried out; secondly, grids serve as study units, a Hebei model is used for establishing a grid runoff producing module; thirdly, a lag-and-route method and a Muskingum method are used for establishing grid-by-grid distributed confluence modules. The mature Hebei model is used for conducting grid runoff producing calculation, then, grid-by-grid confluence calculation is carried out, the situation that the space distribution of factors such as an underlying surface is uneven is fully considered in the model, the model can be coupled with an atmospheric mode, the forecast accuracy of storm flood is improved, the meeting period is prolonged, and the novel distributed Hebei model construction method has important significance for storm flood forecasting, a drainage basin water circulation mechanism, water resource planning, unified water resource management scheduling in the northern semiarid and semihumid regions in China.

Description

technical field

[0001] The invention relates to a construction method of a distributed Hebei model and its application, more specifically a distributed hydrological system that effectively utilizes the Hebei model, uses the grid as the research unit to analyze runoff, and then performs grid-by-grid confluence calculations. Model. Background technique

[0002] Hebei Province is one of the areas in my country that are jointly affected by climate change and human activities. In recent decades, climate warming and high development and utilization of water resources have caused the water cycle process in this area to seriously deviate from its natural evolution law, and the water cycle process has profoundly affected the water resource system, ecological environment system, and socioeconomic system in this area. . The impact of climate change is mainly manifested in changes in atmospheric circulation, causing changes in the temporal and spatial distribution, intensity, and tota...

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