| 15 Titles Match Your Query |
Showing 1 through 15 of 15
|
1.
Soil Temperature and Moisture Model [USDA_ARS_STM2]
The Soil Temperature and Moisture Model model predicts the soil temperature and moisture conditions based on very limited user inputs. The input requirements are:
1. A general soil characterization ...
|
2.
CFITIM Model: Estimates parameters in several equilibrium and non-equilibrium transport models from solute breakthrough curves [USDA_ARS_CFITIM]
Traditionally, a two-parameter partial differential equation has been used to describe the one-dimensional convective-dispersive equilibrium transport of chemicals in field soils. The parameters in ...
|
3.
CHAIN 2D Model: Simulates the movement of water, heat and multiple solutes in two-dimensional variably-saturated porous media [USDA_ARS_CHAIN_2D]
CHAIN-2D is a computer program for simulating two-dimensional variably
saturated water flow, heat transport, and the movement of solutes involved in
sequential first-order decay reactions. The program ...
|
4.
TETRANS Model: Estimates one-dimensional Solute Transport Through the Vadose Zone Under Transient-state Conditions [USDA_ARS_TETRANS]
TETrans (an acronym for Trace Element Transport) is a functional,
layer-equilibrium model of one-dimensional solute transport through the vadose
zone under transient-state conditions. This type of ...
|
5.
Catchment Land Surface Model [NASA_CATCHMENT_LSM]
The one-dimensional framework used by traditional one-dimensional LSMs
(including the Mosaic LSM) is not amenable to an adequate treatment of runoff
generation or subsurface soil moisture ...
|
6.
UNSATCHEM-2D Model: Element Code for Modeling Major Ion Equilibrium and Kinetic Non-Equilibrium Chemistry [USDA_ARS_UNSATCHEM-2D]
UNSATCHEM-2D is a two-dimensional finite element code for modeling major ion
equilibrium and kinetic non-equilibrium chemistry in variably saturated porous
media. The model is intended for prediction ...
|
7.
UNSODA Model: Database and Program for Indirect Methods of Estimating Unsaturated Hydraulic Properties [USDA_ARS_UNSODA]
UNSODA is a database of unsaturated soil hydraulic properties
-Water retention
-Hydraulic conductivity and soil water diffusivity
-Basic soil properties (particle-size distribution, bulk density, ...
|
8.
WATSUIT Model: Predicts the Salinity, Sodicity, and Toxic-Solute Concentration [USDA_ARS_WATSUIT]
WASUIT is a computer program which predicts the salinity, sodicity, and the
toxic-solute concentration of the soil-water within a simulated crop root
zone resulting from the use of a particular ...
|
9.
3DADE Model: Evaluates analytical solutions for two- and three-dimensional equilibrium solute transport [USDA_ARS_3DADE]
3DADE is a Fortran computer program for evaluating a series of analytical
solutions of the 3-Dimensional Advection-Dispersion Equation. The analytical
solutions pertain to three-dimensional solute ...
|
10.
CHAIN Model: Evaluates analytical solutions for convective-dispersive transport of solutes subject to consecutive decay chain reactions (up to 4 solutes) [USDA_ARS_CHAIN]
Problems of solute transport involving sequential first-order decay reactions
frequently occur in soil systems. Examples are the migration of radionuclides,
in which the chain members form a first-order ...
|
11.
CXTFIT Model: Estimates parameters in several equilibrium and non-equilibrium transport models from laboratory or field tracer experiments [USDA_ARS_CXTFIT]
Successful predictions of the fate and transport of solutes in the subsurface
hinges on the availability of accurate transport parameters. We modified and
updated the CXTFIT (version 1.0) code of ...
|
12.
ESAP Model: Statistical software package for estimating field scale spatial salinity patterns from electromagnetic induction signal data [USDA_ARS_ESAP]
Each program in this ESAP software suite contains a number of features designed
to help perform the various components of the soil salinity assessment process,
described below:
1. ESAP-RSSD (Response ...
|
13.
N3DADE Model: Nonequilibrium 3-Dimensional Advection-Dispersion Equation [USDA_ARS_N3DADE]
This research report documents the Fortran program N3DADE (Nonequilibrium
3-Dimensional Advection-Dispersion Equation) which may be used to evaluate
analytical solutions described by Leij et al. [1993]. ...
|
14.
RETC Model: Analyzes the hydraulic properties of unsaturated soils [USDA_ARS_RETC]
RETC is a computer program which may be used to analyze the soil water
retention and hydraulic conductivity functions of unsaturated soils. These
hydraulic properties are key parameters in any quantitative ...
|
15.
SOILCO2 Model: A predictive simulation model based on process oriented relationships [USDA_ARS_SOILCO2]
In this report we present a predictive simulation model, SOILCO2, based on
process oriented relationships. The model includes one-dimensional water flow
and multiphase transport of CO2 utilizing the ...
|
|
Showing 1 through 15 of 15
|
