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Reynolds Creek Experimental Watershed, Idaho (Lysimeter)

    Lysimeters are instruments that measure water and/or solute movement in soils. The primary purpose for these lysimeters was to measure evapotranspiration (ET); these data describe changes in soil water during the snow-free season. In addition to measuring changes in total soil water, soil water content profiles and soil temperature profiles were measured within or adjacent to the lysimeters and are reported. Two pairs of soil lysimeters were installed in the RCEW in 1967, one pair at the Lower Sheep Creek climate station (designated the east and west lysimeters), separated, center to center, by 3.6 m, and the other pair at the Reynolds Mountain climate station (designated north and south), separated by 4.7 m. These lysimeters were hydraulic weighing lysimeters in which an inner cylindrical tank containing soil is set within a slightly larger outer cylinder.

    2DSOIL version 03

      2D finite element water, solute, and heat mover model for plant models.

      SolarCalc 1.0

        Solar Calc: Estimating Hourly Incoming Solar Radiation from Limited Meteorological Data

        Sorption Isotherm Spreadsheet

          Spreadsheet from the paper entitled: On the Use of Linearized Langmuir Equations by C.H. Bolster and G.M. Hornberger, Soil Science Society of America Journal, 2007, 71(6): 1796-1806.

          Modified Langmuir Equation Spreadsheet

            Spreadsheet from the paper entitled: Revisiting a Statistical Shortcoming when Fitting the Langmuir Model to Sorption Data by C.H. Bolster, Journal of Environmental Quality, 2008, 37:1986-1992. Spreadsheet has been modified to make a correction to the calculation of E for weighted data. (3/18/2010).

            WATSUIT

              Predicts the salinity, sodicity, and toxic-solute concentration of the soil-water within a simulated crop root zone resulting from the use of a particular irrigation water of given composition and at a specified leaching fraction. It can be used to evaluate the effect of a given salinity level (or solute concentration) on crop yield and of a given sodicity level on soil permeability.

              UNSATCHEM

                Simulates water, heat, carbon dioxide and solute movement in one-dimensional variably saturated media.

                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.

                    STANMOD

                      Computer Software for Evaluating Solute Transport in Porous Media Using Analytical Solutions of the Convection-Dispersion Equation.