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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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301-713-3028
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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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2018-03-28
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LiDAR Relative Reflectivity Surface (2011) for Coral Bay, St. John
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2013-11-30
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Coral Reef Information System
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inapplicable
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https://www.coris.noaa.gov/metadata/records/ISO/html/rr_coralbay_resample_p3m_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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301-713-3028
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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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Abstract:
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This image represents a LiDAR (Light Detection & Ranging) 0.3x0.3 meter resolution relative seafloor
reflectivity surface for Coral Bay, St. John in the U.S. Virgin Islands (USVI). The image's horizontal
coordinate system is NAD83 UTM 20 North. Fugro LADS, funded by the National Oceanic & Atmospheric
Administration (NOAA) , acquired bathymetry and relative seafloor reflectivity between 1/29/2011 -
2/28/2011. Bathymetry and reflectivity data were acquired using a LADS (Laser Airborne Depth Sounder) Mark
II Airborne System from altitudes between 1,200 and 2,200ft at ground speeds between 140 and 175 knots. The
900 Hertz Nd: YAG (neodymium-doped yttrium aluminum garnet) laser (1064 nm) acquired 3x3 meter spot spacing
and 200% seabed coverage. Depths between 3 and 40 m were surveyed, producing a 3x3 m bathymetry and 3x3 m
reflectivity surface. These surfaces were resampled to 0.3x0.3 m to match the spatial resolution of the
orthophotos collected by the U.S. Army Corps of Engineers in 2012. Environmental factors such as wind
strength and direction, cloud cover, water clarity and depth influenced the area of data acquisition on a
daily basis. The data was processed using the LADS Mark II Ground System and data visualization, quality
control and final products were created using CARIS HIPS and SIPS and CARIS BASE Editor. All users should
individually evaluate the suitability of this data according to their own needs and standards.
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This dataset was collected to update nautical charts in the area, and to support the characterization of
seafloor features in, and creation of a benthic habitat map for, Coral Bay, St. John in the U.S. Virgin
Islands (USVI). Habitat maps provide a spatially explicit representation of benthic structure and biological
cover. The spatial products developed for this project will: (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) in any use of this data.
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completed
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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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301-713-3028
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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
Country:
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US
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http://coastalscience.noaa.gov/projects/detail?key=33
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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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missing
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January 29, 2001 - February 28, 2011
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Geographic Information > LiDAR
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EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Aircraft
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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) in any use of this 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) in any use of this data.
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When the LiDAR relative reflectivity data was acquired.
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18.283917
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18.368571
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The relative reflectivity (i.e., return intensity) of the LiDAR pulse corrected for changes in gain and energy
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National Oceanic & Atmospheric Administration, National Centers For Coastal and Ocean Science, Center
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301-713-3028
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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) in any use of this data.
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