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232 Titles Match Your Query
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51. AQUATOX: A Simulation Model for Aquatic Ecosystems [EPA-AQUATOX]
AQUATOX is a freshwater ecosystem simulation model. It predicts the fate of various pollutants, such as nutrients and organic toxicants, and their effects on the ecosystem, ...

52. 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 ...

53. LANDFIRE Rapid Assessment Reference Condition Models [LANDFIRE_RARCM]
The Rapid Assessment (RA) vegetation dynamics data help to synthesize the best available knowledge of vegetation dynamics and quantify the natural range of variability in vegetation composition and ...

54. Spatial Bioclimatology: Daymet [Daymet]
Daymet is a group of computer programs that produce surfaces of daily temperature, precipitation, radiation, and humidity over large regions, taking into account the effects of complex terrain. Observations ...

55. VORSIM - A Model Building Framework for Microsoft Excel [USDA0430]
"VORSIM - A Model Building Framework for Microsoft Excel" is a computer program which helps the user build and simulate mathematical models in the Microsoft Excel spreadsheet. VORSIM can be used to ...

56. 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 ...

57. HOMER: Hybrid Optimization Modeling Software [HOMER]
The HOMER Hybrid Optimization Modeling Software is used for designing and analyzing hybrid power systems, which contain a mix of conventional generators, cogeneration, wind turbines, solar photovoltaics, ...

58. 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 ...

59. 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 ...

60. 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 ...

61. 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) ...

62. 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 ...

63. 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 ...

64. 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 ...

65. 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 ...

66. 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 ...

67. 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 ...

68. 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 ...

69. 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. ...

70. 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 ...

71. 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 ...

72. European Soil Erosion Model (EUROSEM) [EUROSEM]
The European Soil Erosion Model (EUROSEM) is the result of European Commission funded research involving scientists from Europe and the USA. The model simulates erosion on ...

73. CCSM Climatological Data Atmosphere Model v.6.0 [NCAR_DATM6]
CCSM coupled model is based on a framework which divides the complete climate system into component models connected by a coupler. This design requires four component models -- atmosphere, sea-ice, ...

74. CCSM Climatological Land Data Model (dlnd6) [NCAR_DLND6]
The Climatological Data Land Model (dlnd) functions as the land component in a CCSM configuration. The dlnd land component interacts with the coupler just like any land model would, but it is not ...

75. CCSM Data Sea Ice Model (dice6) [NCAR_DICE6]
The Community Sea Ice Model (CSIM) is a dynamic-thermodynamic model that includes a subgrid-scale ice thickness distribution. It uses the energy conserving thermodynamics of Bitz and Lipscomb (1999), ...

76. CCSM/LANL Parallel Ocean Program (POP) [LANL-POP]
POP is an ocean circulation model derived from earlier models of Bryan, Cox, Semtner and Chervin in which depth is used as the vertical coordinate. The model solves the three-dimensional ...

77. Community Atmosphere Model (CAM) [NCAR_CAM]
The CAM 3.0 is the fifth generation of the NCAR atmospheric GCM. The name of the model series has been changed from Community Climate Model (CCM) to Community Atmosphere Model (CAM) to reflect the ...

78. Community Sea Ice Model (CSIM) [NCAR-CSIM]
The Community Sea Ice Model (CSIM) is a dynamic-thermodynamic model that includes a subgrid-scale ice thickness distribution. It uses the energy conserving thermodynamics of Bitz and Lipscomb ...

79. Fifth-Generation NCAR / Penn State Mesoscale Model (MM5) [MM5_PSU_NCAR]
The PSU/NCAR mesoscale model is a limited-area, nonhydrostatic or hydrostatic (Version 2 only), terrain-following sigma-coordinate model designed to simulate or predict mesoscale and regional-scale ...

80. NCAR Community Land Model [NCAR_CLM]
The Community Land Model is the land model for the Community Climate System Model (CCSM) and the Community Atmosphere Model (CAM). It is a collaborative project between scientists in the ...

81. NCAR/ACD TUV: Tropospheric Ultraviolet & Visible Radiation Model [UCAR_TUV]
The Tropospheric Ultraviolet-Visible Model (TUV) model is used over the wavelength range 121 - 750 nm, for calculating the spectral irradiance, the spectral actinic flux, photodissociation coefficients ...

82. The NCAR CSM Ocean Model (NCOM) Version 1.4 [NCOM-Ocean_Model-00]
The NCAR CSM Ocean Model (NCOM) is based on the GFDL 's Modular Ocean Model (MOM) 1.1 global oceanic general circulation model with substantial modifications to include improved mesoscale tracer transport, ...

83. 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 ...

84. Regional Modeling System for Aerosols and Deposition (REMSAD) [REMSAD]
REMSAD is a three-dimensional grid model designed to calculate the concentrations of both inert and chemically reactive pollutants by simulating the physical and chemical processes in the atmosphere ...

85. 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 ...

86. 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: ...

87. 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 ...

88. A computer model for Water-Surface Profile computations [USGS_WSPRO]
A computer model for Water-Surface Profile computations (WSPRO) computes water-surface profiles for subcritical, critical, or supercritical flow as long as the flow can be reasonably classified as ...

89. 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 ...

90. Distributed Routing Rainfall-Runoff Model [USGS_DR3M]
The Distributed Routing Rainfall-Runoff Model (DR3M) is a watershed model for routing storm runoff through a Branched system of pipes and (or) natural channels using rainfall as input. DR3M provides ...

91. Finite-element surface-water modeling system for two-dimensional flow in the horizontal plane [USGS_FESWMS]
Finite-element surface-water modeling system for two-dimensional flow in the horizontal plane (FESWMS-2DH) is a modular set of computer programs that simulates two- dimensional, depth-integrated, ...

92. Generation and analysis of model simulation Scenarios [USGS_GENSCN]
Analyzing and managing the high volumes of input and output of complex river basin models is a major task. These models are used to simulate water quantity and quality for numerous scenarios of changes ...

93. Hydrograph Separation Program [USGS_HYSEP]
The Hydrograph Separation Program (HYSEP) performs hydrograph separation, estimating the ground-water, or base flow, component of streamflow. The program provides an automated and consistent method ...

94. Hydrological Simulation Program--Fortran [USGS_HSPF]
The Hydrological Simulation Program--Fortran (HSPF) simulates for extended periods of time the hydrologic, and associated water quality, processes on pervious and impervious land surfaces and in streams ...

95. Precipitation-Runoff Modeling System [USGS_PRMS]
PRMS is a modular-design, deterministic, distributed-parameter modeling system developed to evaluate the impacts of various combinations of precipitation, climate, and land use on streamflow, sediment ...

96. Streamflow routing in upland channels or channel networks [USGS_DAFLOW]
Streamflow routing in upland channels or channel networks (DAFLOW) is a digital model for routing streamflow using the diffusion analogy form of the flow equations in conjunction with a Lagrangian ...

97. Biodiversity Pro : Free Statistics Software for Ecology [NHML_Biopro]
BioDiversity Pro was designed and developed by Neil McAleece. This package was devised jointly by P.J.D. Lambshead and G.L.J. Paterson of the The Natural History Museum in London and J.D. Gage of ...

98. 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 ...

99. Hydrodynamic, Sediment, and Contaminant Transport Model (HSCTM2D) [EPA_HSCTM2D]
The Hydrodynamic, Sediment, and Contaminant Transport Model (HSCTM2D) is a finite element modeling system for simulating two-dimensional, vertically-integrated, surface water flow (typically riverine ...

100. EGM96 - The NASA GSFC and NIMA Joint Geopotential Model [EGM96_NASA-NIMA]
EGM96 is a geopotential model of the Earth consisting of spherical harmonic coefficients complete to degree and order 360. It is a composite solution, consisting of: (1) a combination solution to ...

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