SWAT
Soil and Water Assessment Tool
The Soil and Water Assessment Tool (SWAT) is a scalable watershed model that evaluates land use, management strategies and climate change. Modelled processes include rainfall-runoff dynamics, water quality dynamics, crop growth effects, nutrient cycling and sediment transport mechanisms.
- Developer
- USDA ARS
- Model Information
- For more information about this model, go to swat.tamu.edu
- Spatial Resolution
- The spatial resolution is defined on the sub-basin to basin scale. Basins are divided further based on dominate land use or other processes that impact the landscape.
- Temporal Resolution
- Model uses long run simulation durations. Time steps are on the order of hours for rainfall-runoff calculations and days for other processes.
- Outputs
- Outputs include water quality, nutrient cycling, water flow routing characteristics.
- Intended User
- practitioner
- Model Type
- watershed
- Inclusion of Climate Change
- Climate conditions are included through adjustment of climate and weather parameters. Built-in weather generator is also included.
- Geographic Region
- generalized
- Data Requirements
- data provided by the user
- Source Code Availability
- open source
- Dimensions
- 3d
- Computational Burden
- medium
- Scenario Modeling
- scenarios by hand only
- Coding Language
- FORTRAN, GUI
- Operating System
- not applicable
- Mathematical Approach
- deterministic
- Maintenance Plan
- maintained
- Date of Last Known Update
- not available
- User Manual
- go to documentation at swatplus.gitbook.io
For more information and definitions of terms, see the codebook. Do you have feedback about this tool?