GIS Data Services Home

Find GIS Data
Data Collections & Sources
Keyword Search
Keyword List
NC Counties & Cities
Historic Data

Library Data Services
GIS Data Services
Numeric Data Services
Contact Us

Learn About GIS
Overview of GIS
Virtual Campus Courses
GIS at NCSU


Can't find data you're looking for? Contact a Data Services Librarian for help.

Neuse River Basin Land Cover Land Use (EPA)

Overview | NCSU Access | Related Resources


NLCD: North Carolina

Overview

Land cover/land use geo-dataset derived from SPOT and Landsat 7 ETM+ imagery. This data was developed by the US EPA Landscape Characterization Branch, Research Triangle Park, to support studies requiring high-resolution (15 meter) land use/land cover data. Source time period dates range from Oct. 1998 to March 1999.

Processing overview from metadata: "Classification of SPOT 4 (XS) and Landsat 7 ETM+ imagery performed using a hybrid approach that combined both supervised and unsupervised image classification techniques. GIS layers were used to refine classifications using a 'rule based' method. Final 15 meter classification was generalized to a .1 hectare minimum mapping unit (MMU) in riparian zone (within 30 meters of streams, river shorelines, etc.) and a .4 hectare MMU outside the riparian zone. ERDAS Imagine format file was then converted to ESRI Arc/Info GRID format using the IMAGEGRID command."

Classification: 49-class land cover, land use classification scheme (NCSU only)

Data Specifications: This data is available as an ArcInfo Grid dataset in State Plane NAD 83, feet. The data was originally in Albers Conical Equal Area projection and was reprojected by Triangle J Council of Governments. (NOTE: That the metadata does not indicate the change in projection).



NCSU Data Access

The grid is available on the Geodata Server at:

ftp://gisdata.lib.ncsu.edu/fedgov/epa/epalulc/epalulc.zip

The Grid file is 31.9 mb. There is also a metadata file (reprojection to State Plane 83/feet not indicated), a classification scheme and a VAT file.



Related Resources

Summary of Available Land Use/Land Cover Data

Summary of Available Digital Aerial Imagery and Orthophotographs



Go to the Libraries Data List Page