Gawser is a temperature index snow melting model which can be used to verify the hydrology of the basin. It is most suitable for agricultural or forest watersheds, but can be used to demonstrate the hydrology of other types of watersheds, such as urban or suburban water sheds. Gawser is suitable for basins with different development levels and can be used to show the impact of development on watershed hydrology. For example, in order to observe the hydrological impact of deforestation on agriculture, data can be used to simulate hydrological conditions in forest basins, and then reprogrammed to simulate hydrology in agricultural watersheds. We can study the behavior of runoff, infiltration, base flow and other hydrological conditions in each watershed.

High resolution land data assimilation system (hrldas) is an off-line driving force of land surface model existing in weather research and prediction (WRF) model. Hrldas uses a combination of observational and analytical measurements (precipitation, solar and longwave radiation, and surface wind, humidity, and temperature) to drive land surface models to simulate the evolution of land surface conditions (e.g., soil moisture and temperature, snow, etc.). The system has been developed and can run on the WRF domain or multiple site locations.

The bahm model is a tool to analyze the potential impacts of hydrological changes in land development projects and to grade structural solutions to mitigate the increased stormwater runoff in these projects. The software was developed in three counties in the San Francisco Bay Area: Alameda, San Mateo and Santa Clara.

Multi flow confluence algorithm model

In the AgNPs model, the universal soil loss equation (USLE) is used to predict the erosion of a single rainfall event, even if USLE is not suitable for this purpose. A new improvement of USLE is more suitable for predicting the erosion of events, and also provides a mechanism for calculating the impact of slope runoff on erosion, which is not available in USLE.

Wasp is a water quality model system proposed by the U.S. Environmental Protection Agency. It can be used in different environmental pollution decision-making systems to analyze and predict various water quality conditions caused by natural and man-made pollution. It can simulate hydrodynamics, one-dimensional unsteady flow of rivers, three-dimensional unsteady flow of lakes and estuaries, conventional pollutants (including dissolved oxygen, biological oxygen consumption, nutrients and algae) The law of migration and transformation of pollutants (including organic chemicals, metals and sediments) in water is called universal water quality model.

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

Thresh model is a precipitation tracking program, which is used to calculate various precipitation indexes to compare with the existing or experimental threshold of landslide occurrence. The program calculates the cumulative precipitation, precipitation intensity and precipitation duration, and compares the results with the threshold value to determine the threshold value used in landslide early warning. This command-line program is used with Python and shell scripts for input files and visualization results.