Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program 200412 1st raster digital data Silver Spring, MD NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/default.aspx This georeferenced image represents 5 meter resolution bathymetry (sun illuminated with azimuth 225 and incline 45) of the north shore of St. Croix, US Virgin Islands. NOAA's NOS/NCCOS/CCMA Biogeography Team and NOAA/NOS/OCS/HSD personnel, in collaboration with NOAA vessel Nancy Foster and territory, federal, and private sector partners, acquired multibeam bathymetry data in the US Virgin Islands from 2/18/04 to 3/5/04. Data was acquired with a pole-mounted Reson 8101 ER multibeam echosounder (240 kHz) and processed by a NOAA contractor using CARIS HIPS v5.4 software. Data has all correctors applied (attitude, sound velocity) and has been reduced to mean lower low water (MLLW) using final approved tides from NOAA COOPS. Data is in UTM zone 20 north, datum WGS84. The processed CARIS data was used to generate a CARIS BASE surface -akin to a DTM- based on swath angle with footprint size 3*3. Within CARIS, an imagery file with associated georeferencing was then exported from the BASE surface. While the project was conducted to meet IHO Order 2 accuracy standards, there is a roll artifact (averaging 0.5m high) in the dataset that the user should take into consideration when performing any analysis. This multibeam data product was collected as project NF-04-06 during year one of a two-year NOAA scientific research mission in the US Virgin Islands to characterize nearshore coral reef habitats. The mission purpose is to better understand the resources within the surveyed reef habitats, and ultimately develop species utilization models linking physical habitats with biological information. The multibeam backscatter, multibeam bathymetry, and ground truth video footage collected during the 2004 mission will be used internally to characterize sea floor topography and to create benthic habitat maps, helping NOAA meet its mapping commitment to the US Coral Reef Task Force. The resulting publicly-distributed data is also a contribution to the greater scientific community interested in the USVI seafloor. Depth datum is Mean lower low water, units are meters and encoding method is explicit depth coordinate included with horizontal coordinates Access Data Acquisition and Processing Report at http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-04-06_DAPR.pdf 20040218 20040305 ground condition Complete As needed -64.666921 -64.555388 17.829640 17.765480 CoRIS Discovery Thesaurus Geographic Information > Bathymetry CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description None Bathymetry Grid Multibeam SWMB Raster NOAA Biogeography Nancy Foster Reson 8101 Seafloor GIS Habitat MBES Benthic NF-04-06 Sonar ISO 19115 Topic Category elevation 006 CoRIS Place Thesaurus OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Buck Island > Buck Island (17N064W0006) COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Croix > Buck Island (17N064W0006) None USVI U. S. Virgin Islands St. Croix Buck Island Reef National Monument BIRNM Buck CoRIS Region USVI None 2004 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), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Project Manager - US Virgin Islands mailing and physical address

1305 East West Highway, SSMC4

Silver Spring MD 20910 USA (301) 713-3028 (301) 713-4388 Contact info is for CCMA general reception. Please ask for current Biogeography project manager for USVI. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS), Hydrographic Surveys Division (HSD) NOAA - NMAO personnel and ship NANCY FOSTER Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 While the project was conducted to meet IHO Order 2 accuracy standards, there is a serious roll artifact (averaging 0.5m high) in the dataset that the user should take into consideration when performing any analysis. This artifact is likely the result of small errors is the measurement of sensor offsets, combined with strumming motion from the pole on which the sonar was mounted. This image is sourced from a 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 as an graphic image. Some positional shifts may have occurred between the original data points and the transformed image. See Data Acquisition and Processing Report (DAPR) for NF-04-06. Also titled Data Acquisition and Certification Report for cruise number NF-04-06-VI. See Data Acquisition and Processing Report (DAPR) for NF-04-06. Also titled Data Acquisition and Certification Report for cruise number NF-04-06-VI. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Unpublished Material vector digital data external hard drive 200402 200403 ground condition NF-04-06 XTF Raw Multibeam Data Original raw full resolution dataset. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Unpublished Material vector digital data external hard drive 200402 200403 ground condition NF-04-06 HDCS Processed Multibeam Data Processed, cleaned, and corrected full resolution dataset. Sourced from raw XTF data. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Unpublished Material remote-sensing image external hard drive 200402 200403 ground condition NF-04-06 BASE Surface Downsampled CARIS BASE (Bathymetry Associated with Statistical Error) grid with best depth layer. Sourced from processed HDCS data. For this project, the Chief Scientist was NOAA/NOS/NCCOS/CCMA's Dr. Mark Monaco and the Lead Hydrographer was NOAA/NOS/OCS/HSD/PHB's Physical Scientist Sean Rooney. Data was collected aboard the NOAA ship Nancy Foster from 2/18/04 to 3/5/04, as project number NF-04-06-VI. Multibeam data was acquired in XTF format with a pole-mounted Reson 8101 ER multibeam echosounder (240 kHz), with options 033 and 040. Triton-Elics ISIS 6.20 software was used to interface with the Reson system. Line spacing for acquisition was typically three times the water depth, giving 100% bottom coverage, and data was retained out to 70 degrees from nadir. Heave, roll, pitch and heading correctors were collected using an Ixsea Octans gyrocompass and integrated motion sensor. Sound velocity profiles were acquired with a Seabird Electronics SeaCat SBE19 CTD profiler and processed using Velociwin 8.40 (NOS HSTP product), then concatenated. Positioning was obtained using a Trimble DSM212L GPS receiver with differential correctors from U.S. Coast Guard beacon Isabel, PR. Data was reduced to Mean Lower-Low Water (MLLW) using final approved tides from NOAA COOPS, based on National Water Level Observation Network (NWLON) primary tide stations at Charlotte Amalie, VI (9751639) and Lime Tree Bay, VI (9751401). NF-04-06 XTF Multibeam Data 200403 SWMB data in XTF format were converted and processed using CARIS HIPS v5.3 and 5.4 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. NF-04-06 HDCS Multibeam Data 200408 After being submitted to CCMA by the contractor, CARIS HIPS v5.4 was used to generate a 5m resolution CARIS BASE surface (similar to a DTM), based on swath angle and maximum footprint size 3*3 pixels, from the processed HDCS data. Then CARIS export tool "BASE Surface to Image" was used to export georeferenced graphics files. NF-04-06 BASE Surface 200411 Metadata imported. C:\Documents and Settings\ada.otter\My Documents\MB_ImageBathy_MetadataTemplate.xml 200411 Raster Pixel 1400 2354 1 Universal Transverse Mercator 20 0.999600 -63.000000 0.000000 500000.000000 0.000000 Row and Column 4.997876 5.000000 meters D_WGS_1984 WGS_1984 6378137.000000 298.257224 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Project Manager - US Virgin Islands mailing and physical address

1305 East West Highway, SSMC4

Silver Spring MD 20910 USA (301) 713-3028 (301) 713-4388 Contact info is for CCMA general reception. Please ask for current Biogeography project manager for USVI. 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. TIFF 9.433 http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/data/ None 20121217 NOAA/NOS/NCCOS/CCMA Biogeography mailing and physical address

1305 East West Highway, SSMC4

Silver Spring MD 20910 USA (301) 713-3028 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 Local Time 20050808054228 None 20040218 20040305 http://www.coris.noaa.gov/metadata/records/html/bathymetry_5m_sun_illum225_st_croix_2004.html 1015