The recess program is used to determine the decline index and determine the main decline curve from the analysis of runoff records.

Anuga hydrodynamic modeling tool can build complex 2D hydrodynamic model. For example, simulate the fracture of a dam or the impact of natural disasters such as storms and tsunamis. A research area must be designated as a triangular unit, if applicable, to determine topography and bathymetric measurements, friction, initial water level values (Anuga referred to as the first stage), boundary conditions and forces such as rainfall, river flow, wind stress and pressure gradient networks. Anuga simulated the evolution of water depth and horizontal momentum with time in each element by solving the shallow water wave equation and using the finite volume method.

Rainoff model is used to calculate the rainfall runoff of a watershed (hydrological catchment area). Its expansion is limited by the condition that rainfall can be evenly distributed in the area. This model can be downloaded for free.

Simulating the change of alluvial channel in drought

Elm is mainly used to develop and share a better understanding of biological, chemical and hydrological interactions in landscape mosaic ecosystems. In the field of ecology, models can help organize or integrate our understanding of system ecology. This understanding can be applied to assess the relative benefits of simulation scenarios that will change in the future.

Based on the gradual flow equation, the flow characteristics of open channel are simulated, and the flow velocity and depth are calculated. The fldta model is not a separate model. The code can obtain the fldta. F file in the Midas model source code