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SWMS-3D

    Simulates water and solute movement in three-dimensional variably saturated media.

    SWMS-2D

      Simulates water and solute movement in two-dimensional variably saturated media.

      ROSETTA

        Estimates water retention, saturated and unsaturated hydraulic conductivity from basic soil data (requires 32-bit Windows).

        RETC

          Analyzes the hydraulic properties of unsaturated soils.

          N3DADE

            Evaluates analytical solutions for two- and three-dimensional non-equilibrium solute transport.

            HYDRUS

              Simulates water, heat, and solute movement in one-dimensional variably-saturated porous medium.

              CHAIN2D

                Simulates the movement of water, heat, and multiple solutes in two dimensional variably-saturated porous media.

                CPM - Cotton Production Model

                  A new process-based cotton model, CPM, has been developed to simulate the growth and development of upland cotton (Gossypium hirsutum L.) throughout the growing season with minimal data input. CPM predicts final cotton yield for any combination of soil, weather, cultivar and sequence of management actions.

                  WEPPCAT

                    WEPPCAT is a web-based erosion simulation tool that allows for the assessment of changes in erosion rates as a consequence of user-defined climate change scenarios. This tool is based on the USDA-ARS Water Erosion Prediction Project (WEPP) erosion model.

                    Soil Series Classification Database (SC)

                      The USDA-NRCS Soil Series Classification Database contains the taxonomic classification of each soil series identified in the United States, Territories, Commonwealths, and Island Nations served by USDA-NRCS. Along with the taxonomic classification, the database contains other information about the soil series, such as office of responsibility, series status, dates of origin and establishment, and geographic areas of usage.