Preliminary Spatial Datasets of the ASC Region

Data are in ArcView shapefiles.
Projection is uniform across all datasets.

14-digit HUC boundaries
nj14-hucs.zip

New Jersey 14-digit Hydrologic Catalog Unit (HUC) watershed boundaries.
Metadata available.

md14-hucs.zip

Maryland 14-digit Hydrologic Catalog Unit (HUC) watershed boundaries.
Metadata available.

nc14-hucs.zip

North Carolina 14-digit Hydrologic Catalog Unit (HUC) watershed boundaries.
Metadata available.

2000 Census
asc_census.zip

Census tract boundaries (geography only) from the US Bureau of Census (2000 Census).
Metadata available.

ASC States
asc_states.zip

State boundaries for the ASC study area
Metadata available.

Digital Elevation models
ascdems.zip

3-arc-second DEMs at the 1:250,000-scale.  Resolution: approx. 100 m.
Metadata available.

Drainage basins
asc_basins.zip

The drainage basin boundaries were obtained by aggregating 1:2,000,000-Scale Hydrologic Unit Boundaries for each drainage basin.
Metadata available.

Ecoregions
asc_ecoreg.zip

Ecoregions based on Bailey’s map (1995)
Metadata available.

Geology
asc_geol.zip

Surficial geology at a scale of 1:7,500,000
Metadata available.

Land use distributions
ascnlcd_rc.zip

Similar to the ascnlcd.zip above but with more generalized classes. This is the one being used for the ASC project. The classes for ASC purposes can be found at: http://www.epa.gov/mrlc/classes.html
Metadata available.

ascnlcd.zip

30-m resolution land cover distributions from Landsat TM acquired by Multi-Resolution Land Characteristics (MRLC) Consortium. Definition of classes can be found at http://www.epa.gov/mrlc/classes.html
Metadata available.

Major Land Resource Areas
asc_mlra.zip

Areas of similar pattern of soils, climate, water resources and land uses. Scale: 1:2,000,000.
Metadata available.

Physiographic provinces
asc_physio.zip

Physiographic provinces and sections based on 1:17,000,000-scale map.
Metadata available.

Soils
asc_statsgo.zip

Several attributes have been computed for each mapping unit. Scale: 1:250,000. See Statsgo attribute definitions.txt
Metadata available.

Stream Layer
asc_route_rch.zip

Transport and coastline reaches and routes from the National Hydrography Dataset (NHD).
Metadata available.

Study area boundary
asc_bound.zip

The study area boundary is the outer boundary of drainage basins contained in the Atlantic Slope region
Metadata available.

If you have any questions, please contact:
Joseph Bishop at jab190@psu.edu or (814)863-3530.