NOAA C-CAP Land Cover and Change Analysis
Overview | ArcView Extensions | Data Availability | Data Access | Online Mapping | Related Resources | Documentation and Links
C-CAP: Mouth of Neuse River, 1991-97 Change
Overview
From NOAA--"The Coastal Change and Analysis Program (C-CAP) is a national effort to develop and distribute regional land cover and change analysis data for the coastal zone by using remote sensing technology. In addition to data development, C-CAP establishes guidelines and standards for developing digital, regional land cover and change data along the nation's coastal zone. The data used in this program are created from a combination of satellites and fieldwork. C-CAP classifies land cover types into 22 standardized classes that include forested areas, urban areas, and wetlands."
The C-CAP data uses 22 classes and a 484-class change detection analysis scheme, see: C-CAP Classification Scheme.
Data Availability
C-CAP land cover change data is available in .img format, in UTM (zone varies). Data for the Southeast U.S. have been made available in ArcInfo grid format on the Libraries data server. Data coverage extends well inland from the coastlines, and includes most of the eastern seaboard as well as some West Coast and Gulf Coast locations (see status). Typically, data are tiled by state and are organized into three datasets per state: starting time land cover, ending time land cover, and land cover change. There is some overlap between datasets. Following is the data availability for the southeastern U.S.:
Chesapeake Bay (1984, 1989, 1984-89 change)
Virginia (1997)
North Carolina (1991, 1997, 1991-97 change)
South Carolina (1990, 1995, 1990-95 change)
Georgia (1992, 1997, 1992-97 change)
C-CAP coverage in the Southeast U.S.:
C-CAP coverage in the North Carolina:
Data Access
Data may be downloaded in .img format from NOAA at: http://www.csc.noaa.gov/crs/lca/locate.html. Data for Georgia, South Carolina, North carolina, Virginia and Chesapeake Bay have been converted to ArcInfo grid format and made accessible on the Libraries data server by FTP at: ftp://rpp.lib.ncsu.edu/fedgov/noaa/ccap/ or off-campus Web access at: http://www.lib.ncsu.edu/cgi-bin/proxy.pl?server=rpp.lib.ncsu.edu/fedgov/noaa/ccap/.
ArcView Extensions
C-CAP Data Handler Extension
This extension makes use of Spatial Analyst functionality to facilitate user access to and
manipulate of C-CAP land cover and change analysis data. It requires the Spatial Analyst extension. It imports the C-CAP data and converts to ArcInfo grid format. The extension can be used to apply standard C-CAP legend, clip grids to a shapefile or buffer, generate statistical change tables, analyze groups of related pixels, compare land cover changes in specific classes. Download: http://www.csc.noaa.gov/crs/lca/av_leg.html
C-CAP Legend Handler Extension for ArcView
This extension will provide data displaying options for ERDAS® Imagine® files (*.img) and does not require Spatial Analyst. The C-CAP Legend Handler extension will allow users to display C-CAP raster data (Imagine files *.img) and the legend in ArcView; display the data with the standard C-CAP classification or a generalized classification scheme; specify particular classes to be displayed; and view C-CAP change data. To be available for download in Spring 2002.
Online Mapping
Currently only the Georgia data is available for online mapping. The Change Analysis Demonstration Tool is available online at: http://www.csc.noaa.gov/crs/lca/webtool.html.
Related Resources
- 1996 North Carolina Land Cover
- National Land Cover Dataset
- USGS Land Use/Land Cover
- Neuse Basin Land Cover/Land Use
Documentation and Links
- C-CAP Land Cover/Change Data Page
- Coastal Change Analysis Program
- Classification Scheme
- Change Analysis Demonstration Tool
Go to the GIS Data List Page
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