Dr3m is a distributed rainfall runoff model, which takes rainfall as input to calculate the rainstorm runoff through drainage pipeline or natural river. The detailed simulation of the rainstorm runoff period selected by the user is provided. The calculation of soil moisture is carried out every day during the rainstorm period. A watershed can be expressed as slope flow, channel and reservoir section, which together describes the drainage function elements of the basin. This model is usually used to simulate small urban basins. The flow and base flow in soil are not simulated, snow and snow melting are not simulated.

HydroGeoSphere model is jointly developed by water loo University, Laval University and hydrogeologic company. It can simulate the flow and solute transport process of groundwater and surface water in three dimensions. The model has two coupling modes for groundwater and surface water: the common node mode assumes that the instantaneous consistency of water head is maintained between the surface and the groundwater body, and the water exchange between the surface and groundwater is not calculated in the coupling process of the model; the dual node mode does not assume the continuity of the water head between the two systems, but describes the surface and ground by Darcy flow relationship The flow exchange between the lower water bodies.

PRMs is a modular design modeling system for assessing the impacts of various combinations of precipitation, climate and land use on surface runoff, sediment yield and general watershed hydrology.

IHACRES model is a lumped conceptual rainfall runoff model based on unit hydrograph principle. It is composed of two basic modules in series: in the nonlinear module, rainfall is transformed into effective rainfall; in the linear module, effective rainfall is further transformed into runoff. The model is suitable for a series of spatial and temporal scales.

The vegetation model SSiB was developed in the late 1980s. It is based on the SIB proposed by sellers et al. In 1986. The simplification is mainly aimed at the calculation of radiation transfer, aerodynamic drag coefficient and stomatal resistance coefficient in plants. The simplified SSiB has 1 layer of vegetation, 3 layers of soil and 8 forecast variables (moisture of 3 layers of soil, water content of vegetation surface, snow cover of soil surface and leaf surface temperature). Therefore, there are only two predictors: soil surface temperature and deep soil temperature. In the model, stomatal resistance coefficient, soil resistance coefficient, vegetation boundary layer resistance coefficient and two-layer aerodynamic resistance coefficient are used to control the dynamic, thermal and water exchange between the earth and the atmosphere.