38871 NF09_PR_ElSecoVieques_Backscatter_75cm_Metadata Data Set Published / External 37205 SeafloorMapping_USCaribbean_2004toOngoing Project Completed 2009-12 This dataset contains a GeoTIFF with .75x.75 meter cell size representing the backscatter or intensity of sound returned from the seafloor in "El Seco" east of Vieques Island, Puerto Rico. This intensity surface was derived from data collected in March and April 2009. Acoustic backscatter mosaics are an important piece of information when characterizing surficial seafloor features and delineating benthic habitats. NOAA's NOS/NCCOS/CCMA Biogeography Branch, in collaboration with NOAA vessel Nancy Foster and territory, federal, and private sector partners, acquired multibeam data around Vieques Island from 3/26/09 to 4/2/09. Data was acquired with a hull-mounted Kongsberg Simrad EM 1002 multibeam echosounder (95 kHz) for water depths greater than 75 meters, and with a moon pool flange-mounted Reson 7125 multibeam echosounder (dual frequecy, 200/400 kHz) for water depths of less than 75 meters. The backscatter component of the multibeam data were geometrically and radiometrically corrected using Fledermaus Geocoder Toolbox (FMGT) software. The project was conducted to meet IHO Order 1 and 2 accuracy standards, dependent on the project area and depth. All users should individually evaluate the suitability of this data according to their own needs and standards. This multibeam data was collected as IOCM (Integrated Ocean and Coastal Mapping) project NF-09-01 during the sixth year of an ongoing NOAA scientific research mission in the US Caribbean to characterize nearshore to deep water coral reef habitats at depths down to 1,000 meters. 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 2004-2009 missions will be used to create maps of seafloor habitats, 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. 737 Theme ISO 19115 Topic Category elevation Theme ISO 19115 Topic Category environment Theme ISO 19115 Topic Category geoscientificInformation Theme ISO 19115 Topic Category imageryBaseMapsEarthCover Theme ISO 19115 Topic Category oceans Theme CoRIS Discovery Thesaurus Geographic Information > Backscatter Theme CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Backscatter/Intensity > Habitat Theme NOS Data Explorer Topic Category Backscatter/Intensity Theme Backscatter Theme Benthic Theme Coral Theme El Seco Theme Habitat Theme IOCM Theme Integrated Ocean and Coastal Mapping Theme Intensity Theme MBES Theme Multibeam Theme NOAA Biogeography Theme Nancy Foster Theme Puerto Rico Theme Reef Theme Reson 7125 Theme Seafloor Theme Simrad EM 1002 Theme Sonar Theme U.S. Caribbean Temporal 2004 Temporal 2005 Temporal 2006 Temporal 2007 Temporal 2008 Temporal 2009 Spatial placekt: CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Puerto Rico > Puerto Rico (18N066W0000) Spatial placekt: CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > Puerto Rico > Vieques > Vieques Island (18N065W0002) Spatial placekt: CoRIS Place Thesaurus COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) Spatial placekt: CoRIS Place Thesaurus OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Puerto Rico (18N066W0000) Spatial placekt: CoRIS Place Thesaurus OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Vieques Island > Vieques Island (18N065W0002) Spatial Isla de Vieques Spatial US Virgin Islands Spatial USVI National Centers for Coastal Ocean Science Silver Spring MD Data Set As Needed raster digital 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. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch NOAA - NMAO personnel and R/V NANCY FOSTER Data Steward 2009-12 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Distributor 2009-12 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Metadata Contact 2009-12 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Point of Contact 2009-12 Position NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov Principal Investigator 2009-12 Person Battista, Tim tim.battista@noaa.gov Ground Condition -65.24545977 -65.17628188 18.14291321 18.11763261 Range 2009-03-26 2009-04-02 Yes 3 Area No Row 3614 Column 9808 Vertical 1 Unclassified Click on link from project page to NCEI archive and download zip file.; 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. https://coastalscience.noaa.gov/projects/detail?key=263 Downloadable Data TIFF TIFF 67.0 https://coastalscience.noaa.gov/projects/detail?key=263 Online Resource 2015-09-22 Date that the source FGDC record was last modified. 2017-04-05 Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2017-09-13 Partial upload of Spatial Info section only. 2017-11-01 Replaced entire Lineage section to populate new Source Contribution field. 2018-02-08 Partial upload of Positional Accuracy fields only. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.x See Data Acquisition and Processing Report (DAPR) for NF-09-01. See Data Acquisition and Processing Report (DAPR) for NF-09-01. The bathymetry raster 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 Geotiff. Some positional shifts may have occurred between the original data points and the transformed grid. While the project was conducted to meet IHO Order 1 and 2 accuracy standards, dependant on project area and depth, all users should independently analyze the dataset according to their own needs and standards to determine data usability. Backscatter_ElSeco_75cm_Web.tif Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch 2009-12-01 Discrete 2011-09-26 Sourced from raw backscatter snippets | Source Geospatial Form: tabular digital data | Type of Source Media: external hard drive NF-09-01 HDCS Processed Multibeam Data Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Range 2009-03-26 2009-04-02 Processed, cleaned, and corrected full resolution dataset. Sourced from raw .PDS (PDS2000) and .ALL (SIMRAD) data. | Source Geospatial Form: vector digital data | Type of Source Media: external hard drive Raw Multibeam Data NF-09-01 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch Range 2009-03-26 2009-04-02 Original raw full resolution dataset. | Source Geospatial Form: vector digital data | Type of Source Media: external hard drive 1 For this project, the Chief Scientist was NOAA/NOS/NCCOS/CCMA's Tim Battista and the Lead Hydrographer was independent contractor Mike Stecher. Data was collected aboard the NOAA ship Nancy Foster from 3/26/09 to 4/2/09. Multibeam data were acquired in .all format with a hull-mounted Kongsberg Simrad 1002 ER multibeam echosounder (95 kHz) for water depths greater than 75 meters and in .pds format with a moon pool flange-mounted Reson 7125 multibeam echosounder (dual frequecy, 200/400 kHz) for water depths of less than 75 meters. 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 for the EM1002, and 128 degrees from nadir for the Reson 7125, depending on project area. 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 a Reson SVP 70 and processed using NOAA's Velocwin V8.85 software, then applied directly to the raw data. Positioning was obtained using Trimble Zephyr GPS receivers and an auxiliary Trimble DSM 132 DGPS with differential correctors from U.S. Coast Guard CORS beacon Isabel, Puerto Rico. Data was reduced to Mean Lower-Low Water (MLLW) using final approved tides from NOAA COOPS, based on National Water Level Observation Network (NWLON). | Source Produced: Raw Multibeam Data NF-09-01 2009-01-01T00:00:00 Raw Multibeam Data NF-09-01 2 Raw .pds and .all data were converted and processed using CARIS HIPS v6.0 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. | Source Produced: NF-09-01 HDCS Processed Multibeam Data 2009-01-01T00:00:00 Raw Multibeam Data NF-09-01 3 The multibeam backscatter data were corrected for geometric and radiometric distortions using Fledermaus Geocoder Toolbox (FMGT). The original .pds lines were first converted to paired .gsf and .s7k files using a custom script developed by Fledermaus. Next, the following corrections were applied in FMGT where appropriate and when artifacts were evident: AVG Trend, TX Power and RX Gain, Area Correction, Spreading, Local Seafloor Slope and Extracted Beam Pattern. Individual lines were also truncated based on ping number and/or angle of incidence where appropriate. The final mosaic was exported as a 0.75 x 0.75 m GeoTIFF with relative 8 bit values in WGS 1984 UTM Zone 20N. | Source Produced: Backscatter_ElSeco_75cm_Web.tif 2011-01-01T00:00:00 gov.noaa.nmfs.inport:38871 Tyler Christensen 2017-04-05T12:49:26 SysAdmin InPortAdmin 2025-05-15T19:16:12 2018-02-08 National Centers for Coastal Ocean Science NCCOS 1002 Public No No 2018-02-08 1 Year 2019-02-08