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Counties
Land Only
Counties Land
and Water
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The County Digital Geography
is a digital spatial framework developed using geographic information system
(GIS) technology. It is derived from the U.S. Census Bureau's 1:2 million scale
county geography. The shoreline, international boundaries, and water
(near-ocean) extents in the geography come from NOAA's Coastal Assessment
Framework. The geography encompasses 100 percent of the land area within the
coterminous United States of America. The Counties Digital Geography contains
both land and water (near-ocean) components
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Counties_Land
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3.5
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5.6
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States
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The State Digital Geography is a digital spatial
framework developed using geographic information system (GIS) technology. It is
derived from the County Digital Geography. County boundaries within each state
were dissolved using a GIS. The shoreline, international boundaries and water
(near-ocean) extents in the geography come from NOAA's Coastal Assessment
Framework. The geography encompasses 100 percent of the land area within the
coterminous United States of America. |
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2.1
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| Lower
48 US Outline |
The Lower 48 Outline Digital Geography was
developed using geographic information system (GIS) technology. It is derived
from the County Digital Geography. Boundaries across all states were dissolved
using a GIS. The shoreline and international boundaries in the geography come
from NOAA's Coastal Assessment Framework. The geography encompasses 100 percent
of the land area within the coterminous United States of America.
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2.9
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| CAF
- Coastal Estuarine Watersheds (EDA/CDA) - Land only
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This geography contains the land portions
of the Coastal Assessment Framework's 150 Estuarine (and sub-estuarine)
Drainage Areas (EDAs) and 324 Coastal Drainage Areas (CDAs).
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3.4
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| CAF
- Upstream Watersheds (FDA/FCDA) - Land only |
This geography contains the land portions
of the Coastal Assessment Framework's 54 Fluvial Drainage Areas (FDAs)
and 12 Fluvial components of Coastal Drainage Areas (FCDAs).
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1.8
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| CAF
- Interior Watersheds - Land only |
This geography contains the land portions
of the Coastal Assessment Framework's 11 Interior (self-contained,
groundwater-contributing only, or watersheds draining to outside the U.S.)
Watersheds.
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627kb
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| CAF
- National Coastal Assessment Framework - Land only |
This geography contains the land portions
of the Coastal Assessment Framework (Coastal, Upstream, and Interior
components).
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5.8
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| CAF
- Total Watersheds - Land only (NOAA Regions) |
This geography contains the land portions
of the Coastal Assessment Framework (Coastal, Upstream, and Interior
components) dissolved to the whole watershed level (no Coastal nor Upstream
delineations remain) as described
above.
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5.4
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| CAF
- Complete Coastal Assessment Framework - Land and Water |
The complete Coastal Assessment Framework
(Coastal, Upstream, Interior, and portions of U.S. Watersheds located outside
the U.S.), including both land and water components at the hydrologic
cataloging unit level. It is the CAF in its more elemental form.
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21.5
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