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National Hydrography Dataset



  NHD Applications


    These applications have been developed by NHD users and are listed here to assist others in applying the NHD. If you are interested in sharing your NHD application, please contact nhd@usgs.gov.

    The following applications are downloadable from this Web site. Download problems should be reported to nhd@usgs.gov. All other questions should be directed to the application developer.

    • USFS Reprojection Tool - This tool was developed by the U.S.D.A.--Forest Service for the National Hydrography Dataset (NHD) NHDinGEO format, but can function on any personal geodatabase.The USFS Reprojection Toolbar changes geographic projection and can transform datums using all available ESRI ArcObjects algorithms. This is an add-on toolbar written for ESRI's ArcGIS 9.x (ArcCatalog). The advantage is that it reprojects whole personal geodatabases at once, and updates the metadata at both the Geodatabase, Dataset, and Feature class levels in both the Data Quality and Spatial Reference sections of standard FGDC metadata--or creates its own metadata if there is none.

    • EventMaker - This software was developed by the U.S. Forest Service to fill a hole in the linear referencing tools available in ArcMap, which is the ability to interactively create a linear event based on endpoints. The software also creates point events and is available for ArcGIS 8.3 and 9.0.

    • NHD Watershed - This application employs the NHD and other supporting data layers to delineate a watershed from any point on any NHD reach.

    • NHD Watershed Characteristics - This application employs the NHD and other supporting data layers to compute characteristics of choice for watersheds delineated using NHD Watershed.

    • West Fork Cedar River Demo - This application demonstrates how the NHD can used to facilitate the integration of water resources information.

    The following Web sites describe other NHD applications of interest.

    • NHDPlus Offers New Geospatial Data and Tools for Water Quality Managers - Between 1996 and 2000, the Environmental Protection Agency (EPA), the U.S. Geological Survey (USGS), and other federal, state and local agencies collaborated to produce the National Hydrography Dataset (NHD), a comprehensive set of digital geospatial data about surface water features such as streams, rivers and lakes. These data can be used by water quality managers to make maps, perform upstream/downstream queries, and link other water-related information to the NHD network.

      In 2006, this interagency collaboration produced NHDPlus, a suite of application-ready geospatial products that build upon, and extend, the capabilities of the medium-resolution NHD. NHDPlus integrates the NHD with the National Elevation Dataset (NED) and the Watershed Boundary Dataset (WBD). It includes an enhanced NHD stream network with improved names, value-added attributes (such as stream order), incremental drainage areas with landscape characteristics, and flow volume and velocity estimates for pollutant dilution modeling. EPA and USGS have linked many water quality databases to NHDPlus, including stream gaging stations, water quality monitoring sites, and impaired waters, enabling these databases to be queried and analyzed in upstream/downstream order. NHDPlus greatly enhances the ability of researchers and water quality managers to analyze and model water quality data. For more information on NHDPlus, visit www.epa.gov/waters. Click on the NHDPlus Quick Link on the right side of the web page.

    • WATERS - Watershed Assessment, Tracking and Environmental ResultS (WATERS) employs the NHD as the spatial framework for integrating EPA water program databases.

    • NRIS Water - The U.S. Forest Service Natural Resource Information System (NRIS) Water module employs the NHD as its common hydrologic framework to support aquatic resource decision-making on National Forests.

    • New England SPARROW - This NHD-based version of the USGS SPARROW water-quality model aids the development of regional nutrient water-quality criteria and total maximum daily loads (TMDL) for New England streams.

    • Fish Passage Decision Support System The FPDSS is a web-based application, funded by the U.S. Fish & Wildlife Service, that provides policy makers and the public with information on barriers to fish passage. It uses the NHD for mapping and barrier removal modeling operations.

    • Vermont Flow-Frequency Tool - The USGS in cooperation with the Vermont Agency of Transportation developed this NHD-based tool to automate the calculation of basin characteristics required by flow-frequency equations that estimate peak-flow frequency and flow duration.
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URL: http://nhd.usgs.gov/applications.html
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Last modified: Friday, 22-Jun-2007 14:06:42 EDT