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1. PULSE: Model-Estimated Ground-Water Recharge and Hydrograph of Ground-Water Discharge to a Stream [USGS_PULSE]
The computer model PULSE can be used to construct a hydrograph of groundwater discharge to a stream. The model is applicable to a groundwater flow system that is driven by areally uniform recharge ...

2. Precipitation-Runoff Modeling System [USGS_PRMS]
The Precipitation-Runoff Modeling System is a deterministic, distributed-parameter, physical process based modeling system developed to evaluate the response of various combinations of climate and ...

3. RORA: The recession-curve-displacement method for estimating recharge [USGS_RORA]
The computer program RORA estimates groundwater recharge using the recession-curve-displacement method. The method is based on the change in total potential groundwater discharge that is caused by ...

4. One-Dimensional Transport With Inflow and Storage (OTIS): A Solute Transport Model For Streams and Rivers [USGS_OTIS]
OTIS is a mathematical simulation model used to characterize the fate and transport of water-borne solutes in streams and rivers. The governing equation underlying the model is the advection-dispersion ...

5. GW_CHART: Program for Creating Specialized Graphs In Ground-Water Studies [USGS_GW_CHART]
GW_Chart is a program for creating specialized graphs used in ground-water studies. It incorporates the functionality of two previous programs, Budgeteer and Hydrograph Extractor and adds additional ...

6. Streamflow routing in upland channels or channel networks [USGS_DAFLOW]
The DAFLOW model routes flows through a system of inter-connected one-dimensional channels and subdivides the system into a series of branches, with each branch divided into a number of subreaches. ...

7. The GIS Weasel - An Interface for the Development of Spatial Parameters for Physical Process Modeling [USGS_GIS_WEASEL]
GIS Weasel is a software system designed to aid users in preparing spatial information as input to lumped and distributed parameter environmental simulation models (ESMs). The GIS Weasel provides ...

8. ANNIE: Interactive Hydrologic Analyses and Data Management [USGS_ANNIE]
ANNIE is a program designed to help users interactively store, retrieve, list, plot, check, and update spatial, parametric, and time-series data for hydrologic models and analyses. Data are stored ...

9. Branch-Network Dynamic Flow Model [USGS_BRANCH]
The Branch-Network Dynamic Flow Model--BRANCH--is used to simulate steady or unsteady flow in a single open-channel reach (branch) or throughout a system of branches (network) ...

10. 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 ...

11. Software for Hydrologic and Sediment Response Modeling [USDA_FS_WATSED]
The cumulative effects of land management activities on water `quality, stream channels, and water dependent resources from the introduction of sediment and changes in quantity and timing of water ...

12. Automated Geospatial Watershed Assessment (AGWA) [USDA_AGWA]
The Automated Geospatial Watershed Assessment (AGWA) tool is a GIS-based hydrologic modeling tool that uses commonly available GIS data layers to fully parameterize, execute, and spatially visualize ...

13. TOPAZ: Topographic Parameterization [TOPAZ]
TOPAZ (Topographic Parameterization) is an automated digital landscape analysis tool for topographic evaluation, drainage identification, watershed segmentation and subcatchment parameterization. ...

14. Web Based Hydrograph Analysis Tool (WHAT) [PURDUE_WHAT]
The Purdue University Web-Based Hydrography Analysis Tool (WHAT) allows users to view USGS stream flow data in a GIS setting. Users can also upload their own stream flow data to be visualized in this ...

15. JGrass - A Free Open Source GIS Dedicated To Hydro Geomorphology [JGrass]
JGrass - Hydrological Modeling in Java is a free open source GIS based on the uDig framework, built and maintained by HydroloGIS in collaboration with CUDAM. JGrass uses the algorithmic smarts of ...

16. PODIUMSim - Policy Dialogue Model and Water and Food Security Planning Tool [IWMI_PODIUMSim]
PODIUMSim provides a framework to develop scenarios of water and food supply at river basin, sub-national and national level. It is an interactive tool that runs on a personal computer, and has a ...

17. HidroSIG GIS [HidroSIG]
HidroSIG is a Geographical Information System (GIS) with special tools that will allow you to make estimations and analysis of hydrological, climatic and geomorphological variables. ...

18. Visual Plumes Model System [EPA_VPLUME]
The Visual Plumes model system is a Windows-based software application for simulating surface water jets and plumes. It also assists in the preparation of mixing zone analyses, Total Maximum Daily ...

19. Cornell Mixing Zone Expert System (CORMIX) [EPA_CORMIX]
CORMIX is a USEPA-supported mixing zone model and decision support system for environmental impact assessment of regulatory mixing zones resulting from continuous point source discharges. The system ...

20. Environmental Fluid Dynamics Code (EFDC Hydro) Model [EPA_EFDC]
The Environmental Fluid Dynamics Code (EFDC) is a multifunctional surface water modeling system, which includes hydrodynamic, sediment-contaminant, and eutrophication components. EFDC has been applied ...

21. 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 ...

22. Hydrological Simulation Program - FORTRAN (HSPF) [EPA_HSPF]
Hydrological Simulation Program - FORTRAN (HSPF) is a comprehensive package for simulation of watershed hydrology and water quality for both conventional and toxic organic pollutants. HSPF incorporates ...

23. HydroGET - An ArcGIS Web Service Client [CUAHSI_HydroGET]
HydroGET (Hydrologic GIS Extraction Tool) is a versatile tool that gives ArcGIS users the ability to ingest web service data into ArcGIS. HydroGET stores the downloaded data using the time series ...

24. Master Controlled Vocabulary Registry [CUAHSI_mastercvreg]
The ODM Controlled Vocabulary Registry is a website for data managers to request new or updated items to the master controlled vocabulary and for users to see the current master controlled vocabulary ...

25. Observations Data Model (ODM) [CUAHSI_ODM]   PARENT METADATA
The CUAHSI Hydrologic Information System project is developing information technology infrastructure to support hydrologic science. One aspect of this is a data model for the storage and retrieval ...

26. HydroDesktop - Free and Open Source Application for Finding, Getting, Analyzing and Using Hydrologic Data from the CUAHSI-HIS System [CUAHSI_HydroDesktop]
HydroDesktop is a free, open source application for finding, getting, analyzing and using hydrologic data from the CUAHSI-HIS system. It works with HydroCatalog which indexes the data to find out ...

27. BASINS: Better Assessment Science Integrating Point & Nonpoint Sources [BASINS-EPA]
Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) is a multipurpose environmental analysis system designed to help regional, state, and local agencies perform watershed- and ...

28. ModelMate - A Graphical User Interface (GUI) for Model Analysis [USGS_ModelMate]
ModelMate is a graphical user interface designed to facilitate use of model-analysis programs with models. This initial version of ModelMate supports one model-analysis program, UCODE_2005, and one ...

29. One-Dimensional Transport with Equilibrium Chemistry (OTEQ): A Reactive Transport Model for Streams and Rivers [USGS_OTEQ]
The One-Dimensional Transport with Equilibrium Chemistry (OTEQ) model is a mathematical simulation model used to characterize the fate and transport of waterborne solutes in streams and rivers. The ...

30. NOAA Shoreline Data Explorer [NOAA_Shoreline_GIS]
The NOAA Shoreline Data Explorer system is an online management and sharing system of shoreline data that cartographically depicting the dynamic interface between land and water at the time of survey. ...

31. The Hydrological Routing Algorithm (HYDRA) [NASA_CASA_HYDRA]
The Hydrological Routing Algorithm (HYDRA) is a computer model that simulates the regional scale flow of water (Coe et al., 2000). HYDRA simulates a set of physical hydrologic processes including ...

32. EarthObserver [earthobserver]
EarthObserver is a mobile application created at the Lamont-Doherty Earth Observatory of Columbia University in the City of New York specifically for the iPhone, iPod touch and iPadTM. EarthObserver ...

33. World Water and Climate Atlas [IWMI_WWCA]
The IWMI World Water and Climate Atlas gives irrigation and agricultural planners rapid access to accurate data on climate and moisture availability for agriculture. The Atlas includes monthly and ...

34. Spatial Decision Support Knowledge Portal [INSTITUTE_REDLANDS_SDS]
The SDS Knowledge Portal is developed to help people involved in a spatial decision process (decision makers, practitioners, researchers) gain a holistic view of the spatial decision process and better ...

35. 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 ...

36. Internet Geographical Exposure Modeling System (IGEMS) [EPA-IGEMS]
The new IGEMS is a modernization of OPPT's older Graphical Exposure Modeling System and PCGEMS tools. IGEMS brings together in one system several EPA environmental fate and transport models ...

37. Aquarius: A Modeling System for River Basin Water Allocation [USDA_FS_Aquarius]
Aquarius is a state-of-the-art computer model devoted to the temporal and spatial allocation of water among competing uses in a river basin. The model is driven by an economic efficiency operational ...

38. Hydrologic Engineering Centers River Analysis System [HEC-RAS]
The Hydrologic Engineering Centers River Analysis System (HEC- RAS) llows you to perform one-dimensional steady flow, unsteady flow, sediment transport/mobile bed computations, and water temperature ...

39. The Kinematic Runoff And Erosion Model (KINEROS2) [USDA_KINEROS2]
The Kinematic Runoff and Erosion Model (KINEROS2) is an event oriented, physically based model describing the processes of interception, infiltration, surface runoff and erosion from small agricultural ...

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