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GRANIT Metadata for New Hampshire Hydrography Dataset - Shapefile Extract

GRANIT Metadata for New Hampshire Hydrography Dataset - Shapefile Extract

Title: New Hampshire Hydrography Dataset - Shapefile Extract
Time Period of Content: 1956 - 2005 Initial Publication Date: 01/2006
Originator: Complex Systems Research Center, University of New Hampshire
Abstract:
The New Hampshire Hydrography Dataset (NHHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the state's surface water drainage system. The NHHD, developed at 1:24,000 scale, is an extract from the high-resolution National Hydrography Dataset (NHD) housed at the US Geological Survey. The NHHD Shapefile Extract contains the NHDFlowline, NHDWaterbody and NHDArea feature classes from the original NHHD geodatabase. These shapefiles cover the extent of the sixteen cataloging units that intersect the State of NH, and contain reach codes for networked features, stream order, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the the Atlantic Ocean. However, because this data is no longer contained in the original geodatabase, the networking capabilities of the NHDFlowline has been lost.
Theme Keywords: NHHD, NHD, Hydrography, Surface Water, Streams, Rivers, Lakes, Ponds, Reservoirs, Wetlands, Swamps, Marshes, Network, Drainage, Centerlines, Artificial Paths, Transport Arcs, Reaches, Reach Codes, Stream Orders, Strahler
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