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Abstract
Automated Stream Leveling for the High Resolution National Hydrography Dataset
Track: Water Resources
Author(s): Scott Whitaker, Larry Stanislawski, Martin Hamann
The National Hydrography Dataset (NHD) is designed to facilitate studies involving a watershed of surface drainage. Each Catalog Unit of the NHD contains a drainage network that depicts the flow of surface water in a watershed. In the NHD, stream level refers to a numeric code that identifies a hierarchy for the main path of surface water through the drainage network. During the development of a higher resolution NHD, stream-level values must be updated to reflect the main paths of water through the more detailed drainage system. This paper describes an automated approach being used by the USGS to assign stream-level values during the production of the high resolution NHD.
Scott Whitaker
U.S. Geological Survey
National Mapping Division
1400 Independence Road
MS 821
Rolla , MO 65401
USA
Phone: 573-308-3516
Fax: 573-308-3652
E-mail: swhit@usgs.gov
Larry Stanislawski
Science Applications International Corporation
1400 Independence Road
MS 821
Rolla 65401
USA
Phone: 573-308-3914
Fax: 573-308-3652
E-mail: lstan@usgs.gov
Martin Hamann
Science Applications International Corporation
2224 Sarno Road
Melbourne 32935
USA
Phone: 321-751-3272
E-mail: martin.j.hamann@saic.com