Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch 2011 1st raster digital data Silver Spring, MD NOAA's National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/data/ This dataset contains a unified GeoTiff with 2x2 meter cell size representing the slope (in degrees) of the 2011 biogeographic assessment of the US Virgin Islands, derived from data collected in March 2011. NOAA's NOS/NCCOS/CCMA Biogeography Branch, in collaboration with NOAA vessel Nancy Foster, as well as federal, university, and private sector partners, acquired multibeam bathymetry data off of St. Thomas and St. John, USVI from 03/28/2011 to 04/14/2011. Data was acquired with a hull-mounted Reson 7125 multibeam echosounder (400 kHz). It was processed by a NOAA contractor using CARIS HIPS software. Attitude and sound velocity correctors applied to the data. Verified tides were not applied to the data, leaving the depth values referenced to the ellipsoid. The imagery is projected in the UTM Zone 20 north, NAD83 datum. The processed CARIS data was used to generate a CARIS BASE surface based on swath angle. The CARIS Export option "BASE Surface to Image" was then used to create a GeoTiff of the priority areas. Slope was derived from this surface using the slope calculator, a function of ESRI’s Spatial Analyst extension. This multibeam data was collected for biogeographic habitat mapping as part of the US Caribbean Seafloor Characterization Project. The multibeam component of the cruise was intended to both provide fine scale acoustic imagery of the USVI seafloor, as well as serve as an exploratory tool for snapper-grouper spawning sites. 20110328 20110414 ground condition Complete None Planned -65.070841 -64.856511 18.296191 18.186386 NOS Data Explorer Topic Category Bathymetry/Topography CoRIS Discovery Thesaurus Geographic Information > Bathymetry CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Slope EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description None Coral Seafloor Reef SoNAR Benthic MBES Habitat GIS Reson7125 Nancy Foster Biogeography NOAAF Raster Multibeam Tiff Bathymetry Slope US Virgin Islands USVI St. Thomas Deep Corals Mosaic ISO 19115 Topic Category elevation 006 environment 007 geoscientificInformation 008 imageryBaseMapsEarthCover 010 oceans 014 CoRIS Region USVI None Caribbean Sea US Virgin Islands St. Thomas CoRIS Place Thesaurus 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) None 2011 Please cite any use of this data. Note: NOT TO BE USED FOR NAVIGATION. These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Project Manager - Deep Coral Project mailing and physical

1305 East West Highway, SSMC4, N/SCI 1

Silver Spring MD 20910 USA (301) 713-3028 (301) 713-4384 Contact info is for CCMA general reception. Please ask for current Biogeography Branch project manager for the Deep Coral Project. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 10 Even though the survey was conducted to meet IHO standards, all users should independently analyze the dataset according to their own needs and standards to determine data usability. This GeoTiff is sourced from a CARIS gridded dataset. The original full-resolution multibeam data was used to create a downsampled uniform-resolution CARIS BASE (Bathymetry Associated with Statistical Error) surface grid with a best depth component. The downsampled grid nodes from that depth surface were then exported and used to generate the ESRI Grid. Some positional shifts may have occurred between the original data points and the transformed grid. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Unpublished material vector digital data external hard drive 20110328 20110414 ground condition Raw Multibeam Data Original raw full resolution dataset. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Unpublished material vector digital data external hard drive 20110328 20110414 ground condition HDCS Processed Multibeam Data Processed, cleaned, and corrected full resolution dataset. Sourced from raw .ALL data. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Unpublished material raster digital data external hard drive 20110328 20110414 ground condition BASE Surface Downsampled CARIS BASE (Bathymetry Associated with Statistical Error) grid with best depth layer. Sourced from processed HDCS data. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Unpublished material external hard drive 20110328 20110414 ground condition unpublished bathymetry unpublished bathymetry For this project, data was collected aboard the Nancy Foster from 03/28/2011 to 04/14/2011. Multibeam data were acquired in .all format with a hull-mounted Reson 7125 multibeam echosounder (400 kHz). Backscatter snippet collection was enabled. Line spacing for acquisition was three times the water depth, and data was retained out to 60 degrees from nadir. Heave, roll, pitch and heading correctors were collected using an Applanix POS/MV Model 320 V4 inertial measurement unit (IMU) and associated Trimble GPS antennas. Sound velocity profiles were acquired with a Seabird Electronics SeaCat SBE19P CTD profiler and processed using NOAA's Velocwin V8.85 software, then applied directly to the raw data. Positioning was obtained using Trimble Zephyr GPS receivers. 2011 Raw .all data were converted and processed using CARIS HIPS & Sips 7.0 software, resulting in a CARIS HDCS format dataset with all correctors applied. Attitude and SWMB data was cleaned of fliers, and SWMB data was reviewed in subset mode by a NOAA contractor. Raw Multibeam Data 2011 After being submitted to CCMA by the contractor,CARIS HIPS v7.0 was used to generate a CARIS BASE surface (similar to a DTM), based on weighted swath angle, from the processed HDCS data. Then CARIS export tool "BASE Surface to Image" was used to export a GeoTiff in NAD83 UTM zone 20N. HDCS Processed Multibeam Data 2011 A GeoTIFF of source bathymetry was input into the Slope calculator tool, a component of the ArcGIS Spatial Analyst extension. The output grid of calculated slope, with units in degrees, was created with vertical exaggeration z=1 and with the same grid resolution as the source bathymetry. BASE Surface 2011 Raster Grid Cell 5957 11272 1 Universal Transverse Mercator 20 0.9999600 -63 0 500000 0 Row and Column 2.000000 2.000000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.0000 298.257222 None 0.0000001 meters Explicit Depth Coordinate Included with Horizontal Coordinates Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Project Manager - Deep Coral Project mailing and physical

1305 East West Highway, SSMC4, N/SCI 1

Silver Spring MD 20910 USA (301) 713-3028 (301) 713-4384 Contact info is for CCMA general reception. Please ask for current Biogeography Branch project manager for the Deep Coral Project. Downloadable Data These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. GeoTIFF .25615 http://coastalscience.noaa.gov/datasets/ccma/biogeo/usvi_nps/2011/slope/stt_bank_slope_2m_11.zip None 20130102 20121206 USVI Project Manager NOAA/NOS/NCCOS/CCMA Biogeography Branch Acoustic Mapping Specialist mailing and physical

1305 East West Highway, SSMC4

Silver Spring MD 20910 USA (301) 713-3028 (301) 713-4384 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 Local Time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile 20121206074612 None 20110328 20110414 http://www.coris.noaa.gov/metadata/records/html/nf11w00217_7125_slope2m_metadata.html 6586