Citation:

Bijak, A., M. Weber, AND Tony Olsen. NHD use in National Aquatic Resource Surveys. Chapter 11, GIS for Surface Water - Using the National Hydrography Dataset. ESRI Press, Viena, VA, , 389-392, (2018).

Impact/Purpose:

The material in the section of a Chapter in the book on the National Hydrography Dataset (NHD) does not directly address an environmental problem but it does provide information on how ORD in collaboration with the Office of Water uses the NHD in the development of survey designs for the National Aquatic Resource Surveys (NARS). The material in the chapter provides an example that others, including states, can use in their development of surveys of streams and lakes. Providing this information, enables states and tribes, as well as other organizations that conduct monitoring programs for streams and lakes, to develop programs compatible with NARS.

Description:

The National Aquatic Resource Surveys (NARS) are a national water quality monitoring program administered by the U.S. Environmental Protection Agency in collaboration with state and tribal partners. The surveys encompass lakes, rivers and streams, wetlands and near coastal waters (including the Great Lakes nearshore waters). The National Lakes Assessment (NLA) and National Rivers and Streams Assessment (NRSA) use the National Hydrography Dataset Plus (NHDPlus), based on the medium-resolution National Hydrography Dataset (NHD), as the geospatial foundation for the survey design to select lakes and sites on streams for sampling. This chapter provides an overview on how NARS uses the NHD as a basis for the sample frame required for selecting sites for the NRSA and the NLA.

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