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 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.

    • 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.

    • 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.

    • NHD/WBD Query Tool - The Bureau of Land Management (BLM) collaborated with the Wyoming Geographic Information Science Center to develop this tool to facilitate use of the NHD, Watershed Boundary Dataset (WBD) and BLM riparian summary data.

    • 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.
Disclaimers:

NHD Watershed

NHD Watershed Characteristics
    Developer: Peter Steeves, U.S. Geological Survey

    Current Version: 1.0

    Software Environment: Same as the NHD ArcView Toolkit

    Purpose: NHD Watershed Characteristics is an ArcView (3.x) extension that enables users to compute and summarize characteristics of choice for watersheds delineated using NHD Watershed. Users are required to prepare datasets of interest (i.e. land cover, elevation derivative data, census data) in an 8-digit subbasin (formerly known as cataloging units) and load them into a project-specific workspace, to be accessed by the NHD Watershed Characteristics tools. Users are also required to modify an Avenue script to suit their specific watershed characteristic summary needs. A default script is available in an ArcView-project (Downloading and Installing step 2c) that showcases five characteristic summary examples and comment lines that help developers in modifying the script. Additional characteristic summary examples are available (Downloading and Installing step 11).

    Downloading and Installing:

    NHD Watershed Characteristics is part ArcView project and part ArcView extension. The project includes a set of un-encrypted scripts for users to modify to summarize their own characteristics.

    1. Download the default ArcView project
    2. To use the ArcView project without modifying the scripts, download the sample data layers for Vermont's White River subbasin (01080105), which are in Vermont State Plane projection.
      1. High-Res NHD workspace in shapefile format:
      2. NHD WATershed SUPport (WATSUP) data layers workspace:
      3. NHD Watershed Characteristics workspace:
    3. Download and install the NHD ArcView Toolkit
    4. Download and install the NHD Watershed Tool
    5. Within the Toolkit directory (by default the directory is named NHDToolkit), create a new directory named NHDWCharacterisitcs' and download the NHD Watershed Characteristics Help files (right-click, choose "save link as" or "save target as") into the new directory.
    6. Download the NHD Watershed Characteristics extension into the ArcView ext32 directory:
      • Download nhdwcharacteristics.avx (right-click, choose "save link as" or "save target as" - if your browser adds a .txt extension to this file you will need to remove it before proceeding)
    7. Follow the NHD Watershed tool steps for turning on relevant extensions (NHD Watershed 'Downloading and Installing' steps 4 and 5)
    8. Follow the NHD Load/Unload Workspace instructions under the Help menu to load your NHD workspace
    9. Follow the NHD Watershed instructions under the Help menu to load an NHD Watershed workspace
    10. Follow the NHD Watershed Characteristics instructions under the Help menu to load an NHD Watershed Characteristics workspace
    11. Download additional characteristic summary examples


    Using NHD Watershed Characteristics:

    See the NHD Watershed Characteristics instructions under the Help menu.

    If you would like to try out NHD Watershed Characteristics, follow the Downloading and Installing instructions using the sample data described under Step 2.

    NHD West Fork Cedar River Demo
      Developer: NHD Support Team, U.S. Environmental Protection Agency

      Current Version: 3.03

      Software Environment: ArcView 3.0a or 3.1 for Windows 95/98/NT

      Purpose: The West Fork Cedar River demo is an example of how the NHDinARC format of the NHD data, can be used to build water resources applications. The demo is an ArcView application and is contained in a tarred and compressed file.The format and organization of the NHDinARC data is referred to as its schema. Note that the West Fork Cedar Demo was built using data that is in a schema version that is slightly older than the current schema which is described under Technical References and found in the data that is available under Data.

      Downloading and Installing: (614K)


      Using the NHD West Fork Cedar River Demo:

      See the West Fork Cedar River Demo Users Guide:


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Last modified: Tuesday, 17-Aug-2004 16:44:35 EDT
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