Improved model based on TOPMODEL model and regional runoff and flood risk design method

The invention discloses an improved model based on a TOPMODEL model, and relates to the field of water circulation simulation and hydrological design. On the basis of an existing TOPMODEL model, a potential evapotranspiration calculation mechanism integrating different data requirements is built and added, the problem that the existing TOPMODEL model seriously depends on evaporation pan observation data is solved, and compared with the existing TOPMODEL model, the improved model improves the applicability and inversion precision of flow data inversion in areas lack of data. The regional runoffand flood risk design method adopts the improved model for calculation. Powerful theoretical and technical support can be provided for design of section runoff and flood design and analysis and decision in regions lack of data. 一种基于TOPMODEL模型的改进模型，涉及水循环模拟及水文设计领域，其在目前TOPMODEL模型的基础上通过构建加入集成不同资料需求的潜在蒸散发计算机制，弥补了目前TOPMODEL模型严重依赖蒸发皿观测数据的问题，改进后的模型较目前的TOPMODEL模型，提高了缺资料地区流量资料反演的适用性及反演精度。一种区域径流和洪水风险设计的方法，其采用上述改进模型计算。可为缺资料地区设计断面径流、