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Cligen

    Cligen is a stochastic weather generator which produces daily estimates of precipitation, temperature, dewpoint, wind, and solar radiation for a single geographic point, using monthly parameters (means, SD's, skewness, etc.) derived from the historic measurements. Unlike other climate generators, it produces individual storm parameter estimates, including time to peak, peak intensity, and storm duration, which are required to run the WEPP and the WEPS soil erosion models.

    pySnobal

      Spatial Modeling for Resources Framework (SMRF) was developed at the USDA Agricultural Research Service (ARS) in Boise, ID, and was designed to increase the flexibility of taking measured weather data and distributing the point measurements across a watershed.

      Automated Water Supply Model (AWSM)

        Automated Water Supply Model (AWSM) was developed at the USDA Agricultural Research Service in Boise, ID, to streamline the workflow used to forecast the water supply of multiple water basins.

        Spatial Modeling for Resources Framework (SMRF)

          Spatial Modeling for Resources Framework (SMRF) was developed at the USDA Agricultural Research Service (ARS) in Boise, ID, and was designed to increase the flexibility of taking measured weather data and distributing the point measurements across a watershed.

          Agricultural Land Management Alternative with Numerical Assessment Criteria (ALMANAC) Simulation Model

            The Agricultural Land Management Alternative with Numerical Assessment Criteria (ALMANAC) model simulates crop growth, competition, light interception by leaves, biomass accumulation, partitioning of biomass into grain, water use, nutrient uptake, and growth constraints such as water, temperature, and nutrient stress. Plant development is temperature driven, with duration of growth stages dependent on degree days. Each plant species has a defined base temperature and optimum temperature.

            Water Erosion Prediction Project (WEPP)

              The Water Erosion Prediction Project (WEPP) model is a process-based, distributed parameter, continuous simulation, erosion prediction model for use on personal computers running Windows 95/98/NT/2000/XP/Vista/Windows7. The current model version (v2012.8) available for download is applicable to hillslope erosion processes (sheet and rill erosion), as well as simulation of the hydrologic and erosion processes on small watersheds. Included in the download package is the WEPP model (version 2012.8), WEPP Windows interface (August 2012), CLIGEN climate generators (versions 4.3 and 5.3), documentation and example data.

              Agricultural Model Intercomparison and Improvement Project (AgMIP) Tools

                Agricultural Model Intercomparison and Improvement Project (AgMIP) datasets are stored in the harmonized AgMIP Crop Experiment (ACE) format. Translation tools available for download at [http://tools.agmip.org/](http://tools.agmip.org/) allow re-formatting of the data to model-specific formats for various crop simulation models.

                Agricultural Model Intercomparison and Improvement Project (AgMIP) Datasets

                  Site-based crop modeling data from field experiments, farm surveys, and yield trials. These data are in AgMIP harmonized format, ready for translation to multiple crop model formats using the data translation tools at [http://tools.agmip.org/](http://tools.agmip.org/). Details on AgMIP can be found at [http://www.agmip.org/](http://www.agmip.org/).