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  4. Hydrography Data Command

Hydrography Data Command

The Hydrography Data command displays the National Hydrograph Dataset Plus High Resolution (NHDPlus HR) from the USGS web map service, showing streams and lakes data on the Map View.

The NHDPlus HR is a geospatial dataset depicting the flow of water across the United States’ landscapes and through the stream network. The NHDPlus HR is built using the National Hydrography Dataset High Resolution data at 1:24,000 scale or finer, the 10 meter 3D Elevation Program data, and the nationally complete Watershed Boundary Dataset.

Note that this command works only within the United States.

Displaying Hydrography Data on the Map View

Follow the steps below to display the streams and lakes data on the Map View:

  1. From the Map Data ribbon menu, select the Hydrography Data command.
    Hydrography Data command
  2. The Hydrography Data dialog box will be displayed.
    Hydrography Data dialog box

The following sections describe the Hydrography Data command and how to interact with the above dialog box.

General Specifications

In this section, the user can provide a name for the layer group in the Layer name field. This name identifies the layer group that will be created in the Map Data Layers panel and will contain the downloaded hydrography layers. By default, the layer name is set to Hydrography Data, which can be changed by the user.

Select Data to Display

In this section, the user can select the hydrography data layers that will be displayed on the Map View. By default, the software selects the basic hydrologic layers. However, the user can experiment with which hydrography layers to display on the Map View.

After the options have been properly defined, the user can click the [OK] button and the software will load and display the selected hydrography layers on the Map View.
Displaying hydrography data on Map View

To return to the default settings, click the [Default] button.

In the Map Data Layers panel, the software provides a data legend for each hydrography layer that lists the hydrography data included with that layer. The user can expand the layer to view the data legend.
Hydrography data layer in Map Data Layers panel

Downloading Hydrography Data as Shapefile Data

The Hydrography Data menu item contains two additional commands: Rivers & Streams Download and Watershed Boundaries Download. These commands allow the user to download river and streams data and watershed boundaries data as shapefile data.
Hydrography Data menu item

The Rivers & Streams Download command allows the user to download rivers and streams data from the USGS web map service as shapefile data. To learn more about this command, refer to this article in our knowledge base.

The Watershed Boundaries Download command allows the user to download EPA/USGS NHDPlus watershed (catchment) boundaries as shapefile data. To learn more about the Watershed Boundaries Download command, refer to this article in our knowledge base.

About the Author Chris Maeder

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