North Dakota GIS Conference 2006: Workshops
National Hydrography Dataset Applications Workshop
Presented by: Jeff Simley, National Hydrography Dataset Partnership, U.S. Geological Survey
» PowerPoint Presentation (53.5Mb ppt)
This class provides all of the basic information you need to exploit the power of the National Hydrography Dataset. The NHD was carefully designed for scientific applications and consists of many attributes and characteristics perfectly suited for geographic analysis using GIS. However, the data was designed to be simple enough for anyone to use, not just highly skilled GIS specialists. Thanks to this design, powerful applications can be developed with just one day's training. The class starts by looking at how others around the country are using the NHD. The NHD data structure is explored and applied to basic mapping techniques. The ability to navigate throughout the stream network is covered, opening up new approaches for conducting GIS. The data structure is explored in more detail revealing many new possibilities for network analysis. The important process of linking scientific data to the stream network is covered. These techniques, combined with network navigation, lead to cause and effect analysis allowing the scientist to discover how one event in the environment can impact another event. The importance of data change management, the added power of NHDPlus, and the role of ArcHydro are also covered.
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