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Publication Details

Please note this explorer contains 2017 and prior publications and is no longer updated. Visit Data Reports Explorer for the latest NCCOS research data and reports.

Summit-to-Sea Mapping and Change Detection Using Satellite Imagery: Tools for Conservation and Management of Coral Reefs

Author(s): Shapiro, A.C. and S.O. Rohmann

NCCOS Center: CCMA

Center Team: Biogeography

Name of Publisher: Revista de Biología Tropical, Universidad de Costa

Place of Publication: San José, Costa Rica

Publication Type: Journal Article

Journal Title: International Journal of Tropical Biology and Conservation, ISSN-0034-7744, Rev. Biol. Trop. (www.tropiweb.com)

Date of Publication: 2005

Reference Information: 53 (Supp. 1) 185-193

Keywords: remote sensing, benthic habitats, change analysis, Landsat, coral reefs, mapping, managment tool, coral, conservation, satellite imagery, change detection, summit-to-sea, summit to see

Abstract: Continuous summit-to-sea maps showing both land features and shallow-water coral reefs have been completed in Puerto Rico and the U.S. Virgin Islands, using circa 2000 Landsat 7 Enhanced Thematic Mapper (ETM+) Imagery. Continuous land/sea terrain was mapped by merging Digital Elevation Models (DEM) with satellite-derived bathymetry. Benthic habitat characterizations were created by unsupervised classifications of Landsat imagery clustered using field data, and produced maps with an estimated overall accuracy of >75% (Tau coefficient >0.65). These were merged with Geocover-LC (land use/land cover) data to create continuous land/ sea cover maps. Image pairs from different dates were analyzed using Principle Components Analysis (PCA) in order to detect areas of change in the marine environment over two different time intervals: 2000 to 2001, and 1991 to 2003. This activity demonstrates the capabilities of Landsat imagery to produce continuous summit-tosea maps, as well as detect certain changes in the shallow-water marine environment, providing a valuable tool for efficient coastal zone monitoring and effective management and conservation.

Availability: www.tropiweb.com or http://rbt.ots.ac.cr/

Related Attachment: Download file (.pdf)


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