PWC using the PRZM

Pesticide in Water Calculator using the Pesticide Root Zone Model

The Pesticide in Water Calculator (PWC) and Pesticide Root Zone Model (PRZM3) are pesticide transport and watershed model for agricultural systems. The model captures runoff and erosion processes, and pesticide processes including transport through surface and groundwater, degradation kinetics, and transformation to daughter compounds.

Developer
EPA
Model Information
For more information about this model, go to www.epa.gov
Spatial Resolution
Within the watershed area, each waterbody is modeled as a discrete unit, and uniform parameters are used.
Temporal Resolution
Simulation duration can extend over years. Inputs data sets are entered in daily time steps.
Outputs
Outputs include pesticide and pesticide derivative compound concentrations in surface waters and groundwater sources.
Intended User
practitioner
Model Type
watershed
Inclusion of Climate Change
Climate conditions are not explicitly incorporated. Manipulation of the weather input file is required.
Geographic Region
generalized
Data Requirements
data provided by the user
Source Code Availability
closed source
Dimensions
not available
Computational Burden
low
Scenario Modeling
batch mode described
Coding Language
GUI
Operating System
windows
Mathematical Approach
numerical, simulation
Maintenance Plan
maintained
Date of Last Known Update
not available
User Manual
go to documentation at s3.amazonaws.com