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Hydrologic Unit Code (12-digit)
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OGC WMS Layer
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USGS - Core Science Analytics, Synthesis, and Library - Gap Analysis Project
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The Hydrologic Unit Code (HUC) is part of a hierarchical classification system for surface water drainage in the US (Seaber et al. 1987). The numerical code represents a “cataloging unit” of delineation. Vector format (i.e. polygon) data were compiled from United States Geological Survey (USGS) source - the Watershed Boundary Dataset (WBD). For this project the dataset was modified by removing duplicate codes, removing duplicate polygons, and editing the line work to include near shore habitats in both the coast lines and within large water bodies. The coastal polygons were expanded 5 kilometers from landward edges to create a consistent coastal boundary. This altered 12-digit code HUC dataset was used to delineate...
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Biodiversity,
Conservation,
Deductive Modeling,
Habitat Modeling,
Hydrologic Unit Code (12-digit), All tags...
Predicted Habitat,
United States,
Watershed Boundaries, Fewer tags
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