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eng; USA
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dataset
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National Oceanic & Atmospheric Administration, National Centers For Coastal and Ocean Science, Center for
Coastal Monitoring and Assessment
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301-713-302
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301-713-4384
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1305 East West Highway, N-SCI-1, SSMC 4
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Silver Spring
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Maryland
Postal code:
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20910
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US
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http://coastalscience.noaa.gov/projects/detail?key=33
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originator
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2018-03-28
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ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
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ISO 19115-2:2009(E)
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geometryOnly
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26920
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EPSG
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7.11.2
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Shallow-water Benthic Habitat Map (2013) for Coral Bay, St. John
Date:
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2013-11-30
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publication
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Coral Reef Information System
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inapplicable
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Contact information:
CI_Contact:
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https://www.coris.noaa.gov/metadata/records/ISO/html/benthic_habitat_map_2013_iso.html
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National Oceanic & Atmospheric Administration, National Centers For Coastal and Ocean Science, Center
for Coastal Monitoring and Assessment
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301-713-302
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301-713-4384
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1305 East West Highway, N-SCI-1, SSMC 4
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Silver Spring
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Maryland
Postal code:
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20910
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US
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http://coastalscience.noaa.gov/projects/detail?key=33
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Abstract:
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This shapefile contains information about the shallow-water (<40 meters) geology and biology of the
seafloor in Coral Bay, St. John in the U.S. Virgin Islands (USVI). It was created by manually delineating
and classifying habitats visible in a 0.3x0.3 meter aerial photograph mosaic, and by using edge detection
algorithms and boosted regression trees to automatically delineate and classify habitat features visible in
0.3x0.3 meter LiDAR surfaces. Habitat features less than 100 square meters were not delineated from the
orthomosaic, and were removed from habitat polygons derived from the LiDAR surfaces using ET Geowizards
ArcGIS extension. Manually delineated habitat polygons were digitized at a scale of 1:1,000. Habitat polygon
boundaries derived from the LiDAR surfaces were smoothed in ArcGIS to more closely match the 1:1,000 scale
used for manual digitizing. Georeferenced underwater video & photos were used to train the analyst and
algorithm to classify the major and detailed geomorphological structure, percent hard bottom, major and
detailed biological cover and live coral cover for each polygon. The thematic accuracy of the map was
assessed qualitatively by local experts and quantitatively using randomly sampled locations stratified by
detailed geomorpholoigcal structure type. Thematic accuracies for major and detailed geomorphological
structure, percent hardbottom, major and detailed biological cover, live coral cover and dominant coral type
were: 93.0%, 75.1%, 86.2%, 86.5%, 74.5%, 83.3% and 88.2%, respectively. These thematic accuracies are
similar to the thematic accuracies reported for other NOAA benthic habitat mapping efforts around Buck
Island in St. Croix (>81.4%), in St. John (>80%), in the Main Eight Hawaiian Islands (>84.0%) and
in the Republic of Palau (>80.0%).
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Coral reef ecosystems in the U.S. Virgin Islands and throughout the U.S. Caribbean are under increasing
pressure from environmental and anthropogenic stressors that threaten these important marine communities. To
better evaluate and address these threats, a baseline understanding and periodic evaluation of the benthic
communities and associated living marine resources is needed by scientists and resource managers. Habitat
maps, in particular, are an integral component to this process because they provide a spatially explicit
representation of benthic structure and biological cover. This habitat map of Coral Bay, St. John was
created by NOAA to: (1) inform local managers as to the current distribution of resources, (2) provide a
point of comparison for past and future mapping efforts, (3) help locate sensitive marine communities, and
(4) guide monitoring efforts and prioritize management actions.
Credit:
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Please cite the National Oceanic & Atmospheric Administration (NOAA), National Centers for Coastal Ocean
Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch (BB) in any use of
this data.
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National Oceanic & Atmospheric Administration, National Centers For Coastal and Ocean Science, Center for
Coastal Monitoring and Assessment
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Voice:
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301-713-302
Facsimile:
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301-713-4384
Address:
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1305 East West Highway, N-SCI-1, SSMC 4
City:
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Silver Spring
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Maryland
Postal code:
Character string:
20910
Country:
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US
Online resource:
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URL:
http://coastalscience.noaa.gov/projects/detail?key=33
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originator
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inapplicable
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COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. John > Coral Bay (18N064W0067)
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OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > St. John > Coral Bay (18N064W0067)
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COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. John > St. John (18N064W0011)
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OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Virgin Islands > St. John (18N064W0011)
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COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Thomas > St. Thomas (18N064W0033)
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OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Leeward Islands > St. Thomas (18N064W0033)
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place
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missing
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November 30, 2013
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temporal
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Map Images > Habitats
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theme
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CoRIS Discovery Thesaurus
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missing
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic biology
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EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats
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missing
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Downloadable Data
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NOT TO BE USED FOR NAVIGATION. Please cite the National Oceanic & Atmospheric Administration (NOAA),
National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA),
Biogeography Branch (BB) in any use of this data.
Resource constraints:
MD_LegalConstraints:
Use limitation:
Character string:
NOT TO BE USED FOR NAVIGATION. Please cite the National Oceanic & Atmospheric Administration (NOAA),
National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA),
Biogeography Branch (BB) in any use of this data.
Spatial representation type:
MD_SpatialRepresentationTypeCode:
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Language:
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eng; USA
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environment
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geoscientificInformation
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imageryBaseMapsEarthCover
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oceans
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Date habitat map was published.
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true
West bound longitude:
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-64.912227
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-64.635668
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18.282291
North bound latitude:
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18.367313
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2013-11-30T00:00:00
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March 2013
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National Oceanic & Atmospheric Administration, National Centers For Coastal and Ocean Science, Center
for Coastal Monitoring and Assessment
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301-713-302
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301-713-4384
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1305 East West Highway, N-SCI-1, SSMC 4
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Silver Spring
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Maryland
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20910
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US
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http://coastalscience.noaa.gov/projects/detail?key=33
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http://coastalscience.noaa.gov/projects/detail?key=33
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NOT TO BE USED FOR NAVIGATION. Please cite the National Oceanic & Atmospheric Administration (NOAA),
National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA),
Biogeography Branch (BB) in any use of this data.
Metadata maintenance:
MD_MaintenanceInformation:
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MD_MaintenanceFrequencyCode:
notPlanned