Sapna Batish 20060808 1st PCI Geomatica Georeferenced Landsat Scenes Silver Spring, MD NOAA's Ocean Service, Coral Reef Conservation Program The data results show for the first time Landsat-based land use maps of both the terrestrial and benthic habitats of the U. S. Virgin Islands, spanning a period of 16 years (1985 to 2001). Shallow-water (generally, less than 30 meters) bank and land areas on St. Thomas, St. John, and St. Croix were identified through unsupervised classification of Landsat 7 TM and ETM+ satellite imagery. NOS aerial photographs, benthic habitat data, and bathymetric data were used to ground truth the scenes. The project was supported through the Coral Reef Conservation Program. For additional information please see "Use of Landsat for Managing Coastal Ecosystems of the USVI" http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/Documents/sapnabatishDissFINAL.pdf The objective was to evaluate the effectiveness of Landsat as a potential tool for monitoring the long-term impact of sedimentary runoff to benthic ecosystems. The terrestrial portions of the scenes showed a major shift from forest cover to rural and urban land use. The benthic areas showed a shift from live to dead-algae-covered coral. While the findings cannot establish a causative link between change in land use and decline in coral ecosystem health, they suggest that Landsat may serve as an effective tool when allocating resources for further analysis, habitat conservation, or protection. Landsat scenes used, listed according to the World Reference System. Path, Row, Date (m/d/y) P004, R047, 2/26/01 P004, R047, 9/17/99 P004, R047, 8/12/92 P004, R047, 10/10/87 P004, R047, 3/10/85 P004, R048, 1/25/01 P004, R048, 9/17/99 P004, R048, 8/12/92 P004, R048, 11/19/87 P004, R048, 2/22/85 1985 2001 ground condition Complete none planned -65.1599 -64.5529 18.4874 17.6388 none coral reef satellite imagery Landsat nonpoint pollution algae seagrass CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Remote sensing EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Mapping > Habitat mapping CoRIS Discovery Thesaurus Map Images > Habitats ISO 19115 Topic Category imageryBaseMapsEarthCover 010 none United States United States Virgin Islands St. Croix St. Thomas St. John CoRIS Place Thesaurus OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Virgin Islands > St. Croix (17N064W0003) COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Croix > St. Croix (17N064W0003) OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Virgin Islands > St. John (18N064W0011) COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. John > St. John (18N064W0011) OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Leeward Islands > St. Thomas (18N064W0033) COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Thomas > St. Thomas (18N064W0033) OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Lesser Antilles > U. S. Virgin Islands (17N064W0000) COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) CoRIS Region USVI none These maps are NOT to be used for navigation. Sapna Batish mailing and physical address

50081 Joy Lane

East Liverpool OH 43920 U.S. 202-494-4012 sapnabatish@gmail.com 0800-1600 Monday -Friday, EST NOAA Multispectral Landsat satellite imagery was positioned using ground control data points collected with Garmin GPS and with ground control points from NOS Aerial Photographs . Landsat imagery over deep water and cloud-covered pixels has been removed. The results were more conclusive for St. Croix than for St. John, which were smaller in size and had a greater amount of cloud cover than St. Croix. The classification accuracy was improved by removing all areas greater than approximately 9 m in depth from the classification. This was due to the fact that, in clear water, Landsat TM and ETM+ sensors are unable to discriminate spectral signatures of objects greater than approximately 9 m in depth. All of the imagery is horizontally positioned to less than one Landsat multispectral pixel (28.5 meters). Spatial data meets or exceeds national map accuracy standards for fixed features. none reported U.S. Geological Survey, Earth Resources Observation Systems (EROS) Data Center 2001 1st Sioux Falls, SD U.S. Geological Survey, EROS Data Center Landsat satellite imagery on CD-ROM 1985 2001 ground condition NOAA/NOS/Landsat/Landuse Maps Moderate-resolution Landsat satellite imagery was analyzed to produce land use maps of terrestrial and shallow-water habitats in the USVI. The observation dates of LandSat imagery used ranged from 1985 through 2001. Image processing and analysis were carried out on USVI Landsat images from five dates that spanned a total of 16 years. All scenes had Level 1G radiometric and systematic geometric correction to 250 m based on Landsat payload correction data files and radiometric correction based on the pre-launch calibration of the sensor's reflective band detectors Using the visible shallow water extent as a guide, each of the georectified shallow water areas and atolls were clipped from the Landsat ETM+ imagery. In another set of scenes, all water areas were clipped, leaving only terrestrial areas. They were atmospherically corrected, and using unsupervised classification, land use and change maps were created for the benthic and terrestrial portions of each scene. Because water and land have spectral characteristics very different from one another, the benthic and terrestrial portions of each satellite image were classified separately. For a complete description of the processing steps please see: http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/Documents/sapnabatishDissFINAL.pdf 2006 Sapna Batish mailing and physical address

50081 Joy Lane

East Liverpool OH 43920 U.S. 202-494-4012 sapnabatish@gmail.com 0800-1600 Monday -Friday, EST Raster 0.0001 0.0001 Decimal Degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 Sapna Batish mailing and physical address

50081 Joy Lane

East Liverpool OH 43920 U.S. 202-494-4012 sapnabatish@gmail.com 0800-1600 Monday -Friday, EST Other Documents not to be used for navigation Disclaimer- While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. tiff Benthic Change Analysis Maps http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/BenthicChangeAnalysis/3_Benthic_Change_Analysis_Maps_Batish.zip tiff Classified Land Images http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/ClassifiedLandImages/5_Terrestrial_Land_Use_Maps_Batish.zip tiff Classified Water Images http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/ClassifiedWaterImages/ClassifiedWaterImages.zip tiff Land Change Analysis Images (St. Croix) http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/LandChangeAnalysisStCroix/Three_TerrestrialChange_Analysis_Maps_Batish.zip tiff Land Cover Maps http://data.nodc.noaa.gov/coris/data/NOAA/nesdis/ora/LandChangeAnalysis/LandCoverMaps/5_Benthic_Land_Cover_Maps_Batish.zip None 20121220 20090129 Sapna Batish mailing and physical address

50081 Joy Lane

East Liverpool OH 43920 U.S. 202-494-4012 sapnabatish@gmail.com 0800-1600 Monday -Friday, EST FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 20090129124305 None 19850101 20011231 http://www.coris.noaa.gov/metadata/records/html/nesdis_landsat_imagery_monitor_sediment_usvi_1985_2001.html 2601