the quality of being at hand when needed
an institution created to conduct business
the territory occupied by a nation
Someone or a group of people who develop something
a particular environment or walk of life
Two Dimensional finite element model for hydrodynamic simulation in river and tributaries
the system or form by which a community or other political unit is governed
a human being
An association organized to promote art or science or education
used to solve partial differential equations
The general characterization of a process, object, or concept, in terms of mathematics, which enables the relatively simple manipulation of variables to be accomplished in order to determine how the process, object, or concept would behave in different situations.
the magnitude of something in a particular direction (especially length or width or height)
Modeling framework that combines a number of most appropriate related models for a specific purposes
A simplified description of a complex entity or process
Numerical models are mathematical models that use some sort of numerical time-stepping procedure to obtain the models behavior over time. The mathematical solution is represented by a generated table and/or graph.
A group of people who work together. The persons (or committees or departments etc.) who make up a body for the purpose of administering something
The body of faculty and students at a university. A large and diverse institution of higher learning created to educate for life and for a profession and to grant degrees
ADCIRC is a system of computer programs for solving time dependent, free surface circulation and transport problems in two and three dimensions
Aeronautical Research Associates of Princeton
Advance Technology System
Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) is a customized ArcView GIS application designed to be used by regional, state, and local agencies in performing watershed- and water-quality-based studies
The Branched Lagrangian Transport Model (BLTM) is a dynamic, 1-dimensional Lagrangian transport model to simulate water quality in streams and rivers that can be assumed to be well-mixed. Suitable for unsteady and reversing flows
BRANCH is a dynamic, 1-dimensional model to simulate flow in streams and rivers that can be assumed to be well-mixed. Branched networks can be modeled.
CE-QUAL-ICM is a finite volume eutrophication model that can be used to calculate 1-, 2-, 3-dimensional water quality variables
CE-QUAL-R1 is a dynamic, 1-dimensional (areally averaged) model to simulate vertical profiles of water quality in lakes and reservoirs.
CE-QUAL-RIV1 is a dynamic, 1-dimensional (laterally-averaged) model to simulate flow and water quality in rivers and run-of-the-river reservoirs where variation along the axis of flow is important, but variation with depth and across the channel can be neglected.
CE-QUAL-W2 is a two-dimensional, laterally averaged, finite difference hydrodynamic and water quality model. Because the model assumes lateral homogeneity, it is best suited for relatively long and narrow waterbodies exhibiting longitudinal and vertical water quality gradients.
is a Curvilinear-grid Hydrodynamics 3D model developed originally by Dr. Y. Peter Sheng at the Aeronautical Research Associates of Princeton, Inc. (ARAP, now part of Titan Corporation) during 1983-1986. (Sheng 1986, ARAP Tech Report; Sheng 1987, in "Three-Dimensional Models of Marine and Estuarine Hydrodynamics", Elsevier).
an integrated modeling system based on the curvilinear grid system of CH3D, includes circulation (CH3D), wave, sediment transport (CH3D-SED3D), water quality (CH3D-WQ3D), light attenuation (CH3D-LA), and seagrass models (CH3D-SAV).
CH3D-WES (Curvilinear Hydrodynamics in 3-Dimensions - Waterways Experiment Station) is a time-varying three-dimensional numerical hydrodynamic, salinity, and temperature model.
CORMIX is consists of a series of software systems for the analysis, prediction, and design of discharges into watercourses or the atmosphere, with emphasis on steady -state values for the geometry and dilution characteristics of the mixing zone.
a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels; "the ship went aground in the channel")
the shore of a sea or ocean
Having profit as a chief aim
DAFLOW is a 1-dimensional model to simulate unsteady flow in well-mixed streams and rivers. Branched networks can be modeled
Delft3D is the Model System of the WL / Delft hydraulics where hydrodynamical, ecological and morphodynamical modules are integrated and is widely used all over the world
DELFT Hydraulics
Denish Hydraulic Institute Water & Environment
DR3M (Distributed Routing Rainfall-Runoff Model) is a watershed model for routing storm runoff through a branched system of pipes and (or) natural channels using rainfall as input.
DYNHYD5 solves the one-dimensional shallow-water equations of continuity and momentum for a branching or channel-junction (link-node) computational network.
Denmark
Dimension has not provided or has no applicable dimension
Laboratoire National d'Hydraulique, a department of Electricité de France's Research
The EFDC (Environmental Fluid Dynmics Code) and HEM3D (Hydrodynamic-Eutrophication Model-3D) models are 3-dimensional surface water models for hydrodynamic and water quality simulations in rivers, lakes, reservoirs, wetland systems, estuaries, and the coastal ocean
US Environemental Protection Agency
the wide part of a river where it nears the sea; fresh and salt water mix
FEQ (Full Equations Model) is a dynamic, 1-dimensional model to simulate flow in streams and rivers that can be assumed to be well-mixed.
FESWMS (Finite Element Surface Water Modeling System) is a hydrdynamic modeling code that simulates two-dimensional, depth-integrated, steady or unsteady surface-water flows.
FourPt is a 1-dimensional model to simulate unsteady flow in networks of open channels
France
GEMSS, a Generalized Environmental Modeling System for Surfacewaters is an integrated system of 3-D hydrodynamic and transport models embedded in a geographic information and environmental data system (GIS), grid generator and editor, control file generator, 2-D and 3-D post processing viewers and additional tools that include meteorological data processor, and a USGS flow data processor to support 3-D modeling.
GenScn (GENeration and analysis of model simualtion SCeNarios) is an interactive hydrologic modeling system that supports model setup and data management, model calibration, and analysis of alternatives.
System designed for computing water surface profiles for steady, gradually varied flow in both natural and man-made channels.
One-dimensional sediment transport model designed to calculate water surface and sediment bed surface profiles
The HEC-HMS (Hydrologic Engineering Center-Hydrologic Modeling System) program supercedes HEC-1 and provides a similar variety of options for simulating precipitation-runoff processes
HEC-RAS (Hydrologic Engineering Center-River Analysis System) is an integrated system of software intended for calculating water surface profiles for steady gradually varied flow
HSPF (Hydrologic Simulation Program-Fortran) is a distributed watershed model that simulates precipitation- and snowmelt-driven movement of water through the basin via overland flow, interflow, and baseflow. Kinematic routing of the unidirectional flow through a receiving network of well-mixed channel reaches is also simulated.
Italy
a body of (usually fresh) water surrounded by land)
MIKE 11 is a system for the 1-dimensional, dynamic modelling of rivers, channels and irrigation systems, including rainfall-runoff, advection-dispersion, morphological, and water quality
MIKE 21 is a modeling system for 2D free-surface flows that can be applied in lakes, estuaries, bays, coastal areas, and seas where stratification can be neglected
MIKE 3 is a 3D modelling system for free surface flows, including advection-dispersion, water quality, heat exchange with the atmosphere, heavy metals, eutrophication, flooding and drying of intertidal areas, and sediment processes
MIKE SHE is a distributed, physically based hydrologic modelling system for the simulation of all major processes occurring in the land phase of the hydrologic cycle, inlcuding interception, evapotranspiration, overland and channel flow, snow melt, unsaturated and saturated zone flow, and surface water/groundwater interactions.
MMS (Modular Modeling System) is a modeling framework that enables a user to selectively couple the most appropriate process algorithms from applicable models to create an "optimal" model for the desired application
The Netherlands
OTEQ is a 1-dimensional model used to characterize the fate and transport of trace metals in streams and rivers.
OTIS (One-dimensional Transport with Inflow and Storage) is a 1-dimensional model used to characterize the fate and transport of water quality constituents in streams and rivers that can be assumed to be well-mixed.
Special case of two dimensional model when modeling quantities are expressed in only horizontal direction (z=0 and y=0)
PRMS (Precipitation-Runoff Modeling System) is a distributed watershed model that simulates precipitation- and snowmelt-driven movement of water through the basin via overland flow, interflow, and baseflow
Open for all
Enhanced Stream Water Quality Model with Uncertainty Analysis
RMA10 is a multi-dimensional finite element numerical model. It is capable of steady or unsteady simulation of 3-D hydrodynamics, salinity, and sediment transport.
RMA11 is a finite element water quality model for simulation of 3-D estuaries, bays, lakes and rivers. It is also capable of simulating 1 and 2-D approximations to systems either separately or in combined form
RMA2 is a dynamic two-dimensional depth-averaged finite element hydrodynamic model for computing water surface elevations and horizontal velocity components for subcritical, free-surface flow.
RMA4 is a 2-dimensional finite element water quality transport numerical model in which the depth concentration distribution is assumed uniform.
Advanced computing of water surface profiles for modeling bridges, culverts, floodplains, and channel improvements using HEC-2 and HEC-RAS within AutoCAD
lake used to store water for community use
To keep or confine within limits
a large natural stream of water (larger than a creek); "the river was navigable for 50 miles
SED2D is a dynamic, 2-dimensional finite element model for vertically-averaged sediment transport
Comprehensive graphical user environment for modeling two-dimensional hydrodynamic flow, contaminant transport, sediment transport, and bridge scour
SNTEMP (Stream Network TEMPerature model) is a mechanistic, one-dimensional heat transport model for branched stream networks that predicts the daily mean and maximum water temperatures as a function of stream distance and environmental heat flux
Scientific Software Group
SSTEMP (Stream Segment TEMPerature model) is a much-scaled down version of the Stream Network Temperature Model (SNTEMP).
SWMM is a dynamic rainfall-runoff simulation model, primarily but not exclusively for urban areas, for single-event or long-term (continuous) simulation
TELEMAC-2D is used to simulate free-surface flows in two dimensions of horizontal space. At each point of the mesh, the program calculates the depth of water and the two velocity components.
TOPMODEL is a physically based watershed model that simulates hydrologic fluxes of water (infiltration-excess overland flow, saturation overland flow, infiltration, exfiltration, subsurface flow, evapotranspiration, and channel routing) through a watershed
TRIM2D is a 2-dimensional, depth-averaged, finite-difference hydrodynamic model for simulating inland water flows governed by tidal, wind and riverine inputs
Modeling quanitites are expressed in horizontal , vertical and transverse direction
The variation with depth of motions associated with variation of density with depth.
Any of a number of model atmospheres in which some of the following conditions exist throughout the motion: coincidence of pressure and temperature surfaces; absence of vertical wind shear; absence of vertical motions; absence of horizontal velocity divergence; and conservation of the vertical component of absolute vorticity.
Two dimensional depth average model (2DH)
Special case of three dimensional model when modeling quantities are expressed in horizontal and transeverse direction, z=0
Two dimensional vertical flow model (2DV)
United Kingdom
UNET simulates one-dimensional Unsteady flow through a full NETwork of open channels
United States of America
US Army_Corps of Engineering
US Geological Survey
Water Quality Analysis Simulation Program (WASP) is a generalized framework for modeling contaminant fate and transport in surface waters
a ridge of land that separates two adjacent river systems
Two dimensional finite element model to simulate flow in rivers, lakes and channel networks.