Lower St. Johns River Nutrients TMDL
Submitted by Gibson_S on February 7, 2017 - 10:57am
The Florida National Hydrography Dataset (NHD) is a comprehensive set of digital spatial data distributed in an ESRI geodatabase that represents the surface water of the United States. Polygons are used to represent areal features such as lakes, ponds and rivers, while lines are used to represent linear features such as streams, canals and smaller rivers, and finally points are used to represent point features such as stream gages and dams.
The Florida NHD has several features that make it unique to use as a hydrographic layer:
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