| 135 Titles Match Your Query |
Showing 1 through 50 of 135
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1.
MODFLOW-USG: An Unstructured Grid Version of MODFLOW for Simulating Groundwater Flow and Tightly Coupled Processes Using a Control Volume Finite-Difference Formulation [USGS_mfusg]
PARENT SERF
A new version of MODFLOW, called MODFLOW-USG (for UnStructured Grid), was developed to support a wide variety of structured and unstructured grid types, including nested grids and grids based on prismatic ...
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2.
Software for Assisted Habitat Modeling Package for VisTrails [USGS_SAHM]
The Software for Assisted Habitat Modeling (SAHM) has been created to both expedite habitat modeling and help maintain a record of the various input data, pre- and post- processing steps, and modeling ...
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3.
Stochastic Empirical Loading and Dilution Model (SELDM) [USGS_SELDM]
The Stochastic Empirical Loading and Dilution Model (SELDM) is designed to transform complex scientific data into meaningful information about the risk of adverse effects of runoff on receiving waters, ...
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4.
Dynamic Global Vegetation Model (DGVM) [NASA_CASA_DGVM]
A Dynamic Global Vegetation Model (DGVM) has been developed as a new feature of
the NASA-CASA (Carnegie Ames Stanford Approach) ecosystem production and trace
gas model (Potter and Klooster. ...
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5.
Terrestrial Observation and Prediction System (TOPS) [NASA_ARC_TOPS]
The Terrestrial Observation and Prediction System (TOPS) modeling software system that brings together technologies in information technology, weather/climate forecasting, ecosystem modeling, and ...
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6.
Object User Interface (OUI): An Environmental Resource Modeling Framework [USGS_OUI]
The Object User Interface (OUI) is a map-based framework for models and modeling data. It provides a common interface for running models, as well as acquiring, browsing, organizing, displaying, and ...
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7.
DOBSERV - A Double-observer Approach for Estimating Detection Probability and Abundance from Avian Point Counts [USGS_DOBSERV]
Although point counts are frequently used in ornithological studies, basic assumptions about consistency in detection probabilities often remain untested. We apply a double-observer approach developed ...
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8.
HAZUS-MH Hurricane Model [HAZUS_MH_HURRICANE]
The HAZUS-MH Hurricane Model allows users to estimate the economic and social losses from hurricane winds. The information provided by the model can be used by state and local officials in evaluating, ...
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9.
Land Use Evolution and Impact Assessment Model [UIUC_LEAM]
The Land Use Evolution and Impact Assessment Model (LEAM) is a computer-based tool that simulates land-use changes across space and time. LEAM urban land-use transformation modeling begins with drivers, ...
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10.
TracerLPM - An Excel Workbook for Interpreting Groundwater Age Distributions from Environmental Tracer Data [USGS_TracerLPM]
TracerLPM is an interactive Excel (2007 or later) workbook program for evaluating groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs). Lumped parameter ...
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11.
BayFish Models [BayFish]
The BayFish Models are decision-support tools that show, and predict, the impact of land use and water management options on water-dependant food production. They allow users to see all the dimensions ...
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12.
Community Earth System Model (CESM) [NCAR_CESM]
The Community Earth System Model (CESM) is a coupled climate model for simulating Earth's climate system. Composed of five separate models simultaneously simulating the Earth's atmosphere, ocean, ...
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13.
The LTER Antarctic Palmer Station Data Archive [LTER-99]
(Summary adapted from the LTER Palmer Station web site)
The Palmer LTER focuses on the pelagic marine ecosystem in the
Antarctic, and the ecological processes which link the extent of
annual pack ...
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14.
Timber Harvest Allocation Model [USDA_HARVEST]
HARVEST was designed as a strategic research and planning tool, allowing assessment of the spatial pattern consequences of broad timber management strategies. The model is well suited to evaluate ...
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15.
R program language-Soil and Water Assessment Tool-Flexible Modeling Environment [R-SWAT-FME]
R program language-Soil and Water Assessment Tool-Flexible Modeling Environment (R-SWAT-FME) (Wu and Liu, 2012) is a comprehensive modeling framework that adopts an R package, Flexible Modeling Environment ...
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16.
A Life History Simulator for Terrestrial Wildlife Populations [EPA_hexsim]
HexSim is a spatially-explicit, individual-based, multi-species computer model designed for simulating terrestrial wildlife population dynamics and interactions. HexSim is very general, with landscapes, ...
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17.
Conduit Flow Process for MODFLOW-2005 [USGS_CFP]
The conduit flow process for MODFLOW-2005 (CFP) has the ability to simulate turbulent or laminar ground-water flow conditions by: (1) coupling the traditional ground-water flow equation with formulations ...
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18.
Spatial Analysis and Modeling Tool (SAMT) [SAMT]
The Spatial Analysis and Modeling Tool (SAMT) is designed to combine landscape modeling with GIS-data (grids). The main focus is the integration of fuzzy-models and spatial simulation.
Features of ...
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19.
HIgh Resolution Atmospheric Model [GFDL_HiRAM]
HiRAM, the GFDL global HIgh Resolution Atmospheric Model, was developed with a goal of providing an improved representation of significant weather events in a global climate model. Our intention was ...
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20.
Hortonian Infiltration and Run-Off/On Model [USDA_ARS_HIRO2]
HIRO2 (Hortonian Infiltration and Run-Off/On) is a spatially distributed rainfall-runoff model for event-based studies of space-time watershed processes. A grid-based routing hierarchy was defined ...
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21.
PhenologyMMS - Crop Simulation Model [USDA_ARS_PhenologyMMS]
PhenologyMMS is a simulation model that outlines and quantifies the developmental sequence of different crops under varying levels of water deficits, provides developmental information relevant to ...
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22.
ADMSSTAR - Model for the Analysis of Short-Term Accidental Releases [CERC_ADMSSTAR]
ADMSSTAR is a model for the analysis of Short-Term Accidental Releases based on the ADMS methodology. ADMSSTAR has been developed specifically to estimate air concentration and deposition rate for ...
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23.
Root Zone Water Quality Model (RZWQM) [USDA_ARS_RZWQM]
The Root Zone Water Quality Model (RZWQM) simulates major physical, chemical, and biological processes in an agricultural crop production system. RZWQM is a one-dimensional (vertical in the soil profile) ...
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24.
Cotton Production Model [USDA_ARS_COTTON_P]
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 ...
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25.
DRIFTSIM - Development of a User-Friendly Computer Program to Predict Drift Distances of Spray Droplets [USDA_ARS_DRIFTSIM]
Computer simulation provides a means of determining the relative effects of various factors on spray drift while field experiments to measure spray drift have the limitation that many variables cannot ...
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26.
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 ...
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27.
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 ...
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28.
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 ...
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29.
California Landfill Methane Inventory Model [USDA_ARS_CALMIM]
CALMIM (California Landfill Methane Inventory Model) is a field-validated 1-dimensional transport and oxidation model that calculates annual site-specific landfill methane emissions based on the major ...
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30.
Dairy Gas Emissions Model [USDA_ARS_DairyGEM]
The Dairy Gas Emissions Model (DairyGEM) is a software tool for estimating ammonia, hydrogen sulfide, and greenhouse gas (GHG) emissions of dairy production systems as influenced by climate and farm ...
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31.
Dairy Greenhouse Gas Model [USDA_ARS_DairyGHG]
The Dairy Greenhouse Gas Model (DairyGHG) is a software tool for estimating the greenhouse gas emissions and carbon footprint of dairy production systems. A dairy production system generally represents ...
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32.
Global TempSIM - Java Tool to Predict Maximum and Minimum Daily Air Temperatures for Any Location on the Globe [USDA_ARS_Global_TempSIM]
The purpose of Global TempSIM tool is to estimate daily maximum and minimum air temperatures for a yearly cycle at any location on the globe. Global TempSIM predicts the daily average air temperature ...
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33.
GlobalRainSIM - Tool to Estimate Daily Rainfall Based Upon Two Databases [USDA_ARS_Global_RainSIM]
The purpose of the GlobalRainSIM tool is to estimate daily precipitation patterns for a yearly cycle at any location on the globe. The user input is simply the latitude and longitude of the selected ...
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34.
Integrated Farm System Model [USDA_ARS_IFSM]
The Integrated Farm System Model is a farm simulation model that predicts the
long-term performance, environmental impact and economics of dairy, beef and
crop farms over multiple years of weather. ...
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35.
Pathogen Modeling Program (PMP) [USDA_ARS_PMP]
The Pathogen Modeling Program (PMP) is a package of models that can be used to predict the growth and inactivation of foodborne bacteria, primarily pathogens, under various environmental conditions. ...
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36.
Snowmelt-Runoff Model (WinSRM) [USDA_ARS_WinSRM]
The Snowmelt-Runoff Model (WinSRM) is designed to simulate and forecast daily
streamflow in mountain basins where snowmelt is a major runoff factor. Most
recently, it has also been applied to evaluate ...
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37.
Solar Calc: Estimating Hourly Incoming Solar Radiation from Limited Meteorological Data [USDA_ARS_SolarCalc]
Two major properties which determine weed seed germination are soil temperature
and moisture content. Incident radiation is the primary variable controlling
energy input to the soil system and thereby ...
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38.
Ice Sheet System Model (ISSM) [NASA_JPL_ISSM]
The Ice Sheet System Model (ISSM) is the result of a collaboration between the Jet Propulsion Laboratory and University of California at Irvine. Its purpose is to tackle the challenge of modeling ...
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39.
MODOPTIM: A General Optimization Program for Ground-Water Flow Model Calibration and Ground-Water Management with MODFLOW [USGS_MODOPTIM]
MODOPTIM is a non-linear ground-water model calibration and management tool that simulates flow with MODFLOW-96 as a subroutine. A weighted sum-of-squares objective function defines optimal solutions ...
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40.
Modular Finite-Element Model for Areal and Axisymmetric Ground-Water Flow Problems [USGS_MODFE]
This MODular, Finite-Element digital-computer program (MODFE) was
developed to provide solutions to ground-water-flow problems based
on the governing equations that describe two-dimensional ...
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41.
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 ...
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42.
BIOMOC - A Multispecies Solute-Transport Model with Biodegradation [USGS_BIOMOC]
BIOMOC is a two-dimensional model that can simulate the transport
and biotransformation of multiple reacting solutes. The program is
general and flexible, allowing for any combination ...
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43.
VS2DI - A graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media [USGS_VS2DI]
VS2DI is a graphical software package for simulating flow and
transport in variably saturated porous media. This software package
consists of three components:
- VS2DTI, ...
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44.
Scattering by Arbitrarily Inclined Leaves (SAIL) Model [USDA_ARS_SAIL]
The Scattering by Arbitrarily Inclined Leaves (SAIL) Model is a widely used model that describes light interaction in vegetation canopies. This model is based on very idealized canopy architectural ...
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45.
Environmental Fluids Dynamics Code (EFDC) Data Explorer [EFDC_Explorer]
The Environmental Fluid Dynamics Code (EFDC) is a general-purpose modeling package for simulating three-dimensional (3-D) flow, transport, and biogeochemical processes in surface water systems including: ...
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46.
FourPt - An Unsteady, One-Dimensional, Open-Channel Flow Model [USGS_FourPt]
FOURPT is a numerical model for simulating unsteady, one-dimensional flow in networks of open channels. Options particularly useful in training or prototyping include selection of governing equations ...
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47.
INFIL - A Grid-Based, Distributed-Parameter Watershed Model to Estimate Net Infiltration Below the Root Zone [USGS_INFIL]
INFIL3.0 is a grid-based, distributed-parameter, deterministic water-balance model that calculates the temporal and spatial distribution of daily net infiltration of water across the lower boundary ...
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48.
Branched Lagrangian Transport Model [USGS_BLTM]
The Branched Lagrangian Transport Model (BLTM) has received wide use within the U.S. Geological Survey over the past 10 years. This report documents the enhancements and modifications that have been ...
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49.
MODFLOW-CDSS, a Version of MODFLOW-2005 with Modifications for Colorado Decision Support Systems [USGS_MODFLOW-CDSS]
PARENT SERF
MODFLOW-CDSS is a three-dimensional, finite-difference groundwater-flow model based on MODFLOW-2005, with two modifications. The first modification is the introduction of a Partition Stress Boundaries ...
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50.
International Geomagnetic Reference Field (IGRF) [IAGA_IGRF]
The International Geomagnetic Reference Field (IGRF) is a mathematical description of the Earth's main magnetic field used widely in studies of the Earth's deep interior, the crust and the ionosphere ...
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Showing 1 through 50 of 135
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