Identification_Information: Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Publication_Date: 200809 Title: NOAA ESRI Grid - 10m Multibeam Unified Bathymetric Rugosity, Puerto Rico and USVI - Projects NF-04-06, NF-05-05, NF-06-03, NF-07-06, and NF-08-04, UTM 19N NAD83 Edition: 1st Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Silver Spring, MD Publisher: NOAA's National Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS) Online_Linkage: http://ccma.nos.noaa.gov/ecosystems/coralreef/usvi_nps.aspx Description: Abstract: This dataset contains a unified ESRI Grid with 10 meter cell size representing the rugosity of selected portions of seafloor around La Parguera, Abrir La Sierra Bank, Tourmaline Bank, Bajo De Cico, and Isla De Mona in Puerto Rico and St. Croix, St. Thomas, and St. John in the US Virgin Islands, derived from data collected from 2004 to 2008. Rugosity is defined as the ratio of surface area to planar area and is used as a measure of benthic terrain complexity or "roughness". Rugosity values near 1 represent flat, smooth terrain, while higher values reflect increasing rugosity or terrain roughness. For rugosity grid interpretation, it is recommended that the grid be reclassified according to standard deviation divisions. NOAA's NOS/NCCOS/CCMA Biogeography Team, 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 and 2/1/05 to 2/12/05, including La Parguera, P.R. from 3/21/06 to 4/2/06. Data was acquired with a pole-mounted Reson 8101 ER multibeam echosounder (240 kHz) in 2004 and 2005, and with a hull-mounted Kongsberg Simrad EM 1002 multibeam echosounder (95 kHz) in 2006. In Abrir La Sierra, Bajo de Cico, Tourmaline Bank, and Isla de Mona, P.R., the team, also in collaboration with NOAA vessel Nancy Foster and territory, federal, and private sector partners, acquired data from 4/14/07 to 4/24/07 and 2/25/08 to 3/8/08. Data with acquired with a hull-mounted Kongsberg Simrad EM 1002 (95 kHz) multibeam echosounder, as well as with a Reson 8124 (200 kHz) multibeam echosounder for shallow areas of Abrir La Sierra Bank. Data was processed by a NOAA contractor using CARIS HIPS software. Data has all correctors applied (attitude, sound velocity) and has been reduced to mean lower low water (MLLW) using final approved tides and zoning from NOAA COOPS. Data is in UTM zone 19 north, datum NAD83. The processed CARIS data was used to generate a CARIS BASE surface based on swath angle. For USVI and La Parguera, P.R. (2004-2006), an ASCII XYZ file was exported from the BASE surface and opened in ESRI ArcMap 9.x as an XY event. Then the ArcToolbox conversion tool 'Feature to Raster' was used to generate the final ESRI Grid. For Abrir La Sierra Bank, Bajo de Cico, Isla de Mona, and Tourmaine Bank (2007 and 2008), an ASCII XYZ file was exported from the BASE surface and opened in ESRI ArcMap 9.x using the XYZ to raster tool. The project was conducted to meet IHO Order 1 and 2 accuracy standards, dependant on the project area and depth. All users should individually evaluate the suitability of this data according to their own needs and standards. Purpose: This multibeam data was collected as IOCM (Integrated Ocean and Coastal Mapping) project projects NF-04-06, NF-05-05, NF-06-03, NF-07-06, and NF-08-04 during the first, second, third, fourth, and fifth years 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's 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 these missions 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 US Caribbean seafloor. Supplemental_Information: Depth datum is mean lower low water, units are meters and encoding method is explicit depth coordinate included with horizontal coordinates. Vertical Coordinate System information may be found in the Data Acquisition and Processing Report (DAPR) for: Cruise number NF-08-04 at http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-08-04_DAPR.pdf Cruise number NF-07-06 at http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-07-06_DAPR.pdf Cruise number NF-06-03 http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-06-03%20DAPR.pdf Cruise number NF-05-05 http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-05-05_DAPR.pdf Cruise number NF-04-06 http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-04-06_DAPR.pdf Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040218 Ending_Date: 20080308 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -67.977824 East_Bounding_Coordinate: -64.425787 North_Bounding_Coordinate: 18.366865 South_Bounding_Coordinate: 17.681257 Keywords: Theme: Theme_Keyword_Thesaurus: NOS Data Explorer Topic Category Theme_Keyword: Bathymetry/Topography Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Geographic Information > Bathymetry Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description Theme_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > GIS Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Habitats Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Rugosity Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Puerto Rico Theme_Keyword: US Virgin Islands Theme_Keyword: Bathymetry Theme_Keyword: Grid Theme_Keyword: Multibeam Theme_Keyword: Raster Theme_Keyword: NOAA Theme_Keyword: Biogeography Theme_Keyword: Nancy Foster Theme_Keyword: Simrad EM 1002 Theme_Keyword: Reson 8101 Theme_Keyword: GIS Theme_Keyword: Habitat Theme_Keyword: MBES Theme_Keyword: Benthic Theme_Keyword: Sonar Theme_Keyword: NPS Theme_Keyword: Reef Theme_Keyword: IOCM Theme_Keyword: Integrated Ocean and Coastal Mapping Theme_Keyword: Coral Theme_Keyword: Seafloor Theme_Keyword: Reson 8124 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: 006 Theme_Keyword: environment Theme_Keyword: 007 Theme_Keyword: geoscientificInformation Theme_Keyword: 008 Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: 010 Theme_Keyword: oceans Theme_Keyword: 014 Place: Place_Keyword_Thesaurus: None Place_Keyword: USVI Place_Keyword: US Virgin Islands Place_Keyword: St. Croix Place_Keyword: Buck Island Place_Keyword: Buck Island Reef National Monument Place_Keyword: BIRNM Place_Keyword: St. John Place_Keyword: St. Thomas Place_Keyword: La Parguera Place_Keyword: Puerto Rico Place_Keyword: PR Place_Keyword: Mid Shelf Reef Place_Keyword: MSR Place_Keyword: Abrir La Sierra Bank Place_Keyword: Bajo de Cico Place_Keyword: Isla de Mona Place_Keyword: Tourmaline Bank Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus Place_Keyword: COUNTRY/TERRITORY > United States of America > Puerto Rico > Puerto Rico (18N066W0000) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Puerto Rico (18N066W0000) Place_Keyword: COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Lesser Antilles > U. S. Virgin Islands (17N064W0000) Place_Keyword: COUNTRY/TERRITORY > United States of America > Puerto Rico > Isla de Mona (18N067W0002) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Isla de Mona (18N067W0002) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > La Parguera > La Parguera (17N067W0002) Place_Keyword: COUNTRY/TERRITORY > United States of America > Puerto Rico > La Parguera > La Parguera (17N067W0002) Place_Keyword: COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Thomas > St. Thomas (18N064W0033) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Leeward Islands > St. Thomas (18N064W0033) Place_Keyword: COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. John > St. John (18N064W0011) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Virgin Islands > St. John (18N064W0011) Place_Keyword: COUNTRY/TERRITORY > United States of America > U. S. Virgin Islands > St. Croix > St. Croix (17N064W0003) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea > Virgin Islands > Virgin Islands > St. Croix (17N064W0003) Place_Keyword: COUNTRY/TERRITORY > United States of America > Puerto Rico > Tourmaline Reef ( Arrecife Tourmaline ) (18N067W0003) Place_Keyword: OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Escollo Negro Bank > Tourmaline Reef ( Arrecife Tourmaline ) (18N067W0003) Place: Place_Keyword_Thesaurus: CoRIS Region Place_Keyword: PR Place_Keyword: USVI Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Seafloor Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2004 Temporal_Keyword: 2005 Temporal_Keyword: 2006 Temporal_Keyword: 2007 Temporal_Keyword: 2008 Access_Constraints: Please cite any use of this data. Use_Constraints: 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Contact_Position: Project Manager - US Caribbean Seafloor Characterization Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway, SSMC4 City: Silver Spring State_or_Province: MD Postal_Code: 20910 Country: USA Contact_Voice_Telephone: (301) 713-3028 Contact_Facsimile_Telephone: (301) 713-4384 Contact_Instructions: Contact info is for CCMA general reception. Please ask for current Biogeography project manager for US Caribbean Seafloor Characterization. Data_Set_Credit: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program NOAA - NMAO personnel and R/V NANCY FOSTER Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 Data_Quality_Information: Logical_Consistency_Report: 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. Completeness_Report: This ESRI Grid 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 and used to generate the ESRI Grid. Some positional shifts may have occurred between the original data points and the transformed grid. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: See Data Acquisition and Processing Report (DAPR) for NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: See Data Acquisition and Processing Report (DAPR) for NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Publication_Date: Unpublished Material Title: Raw Multibeam Data NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-07-06/NF-08-04 Geospatial_Data_Presentation_Form: raster digital data Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040218 Ending_Date: 20080308 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Raw Multibeam Data NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 Source_Contribution: Original raw full resolution dataset. Source_Information: Source_Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Publication_Date: Unpublished Material Title: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 HDCS Processed Multibeam Data Geospatial_Data_Presentation_Form: vector digital data Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040218 Ending_Date: 20080308 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06 HDCS Processed Multibeam Data Source_Contribution: Processed, cleaned, and corrected full resolution dataset. Sourced from raw ALL, XTF, and GSF data. Source_Information: Source_Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Publication_Date: Unpublished Material Title: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 CARIS BASE Surface Geospatial_Data_Presentation_Form: raster digital data Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040218 Ending_Date: 20080308 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 BASE Surface Source_Contribution: Downsampled CARIS BASE (Bathymetry Associated with Statistical Error) grid with best depth layer. Sourced from processed HDCS data. Source_Information: Source_Citation: Citation_Information: Originator: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Publication_Date: 200809 Title: NOAA XYZ ASCII Text File of 10m Multibeam Bathymetry of Puerto Rico - US Virgin Islands, Projects NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04, (2004-2008) Geospatial_Data_Presentation_Form: tabular digital data Online_Linkage: http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/default.aspx Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040218 Ending_Date: 20080308 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 ASCII XYZ Multibeam Data Source_Contribution: Downsampled ASCII text file containing XYZ values. XYZ = northing, easting, and depth in meters. Sourced from CARIS BASE surface. Process_Step: Process_Description: For this project, the Chief Scientist was NOAA/NOS/NCCOS/CCMA's Tim Battista and the Lead Hydrographer for 2004-2006 was independent contractor Jay Lazar. For 2007 and 2008 the Lead Hydrographer was independent contractor Mike L. Stecher. Data was collected aboard the NOAA ship Nancy Foster from 2/18/04 to 3/5/04 and 2/1/05 to 2/12/05 and 3/21/06 to 4/2/06 and 4/14/2007 to 4/24/2007 and 2/25/08 to 3/8/08. Multibeam data for 2004 and 2005 were acquired in GSF format with a pole-mounted Reson 8101 ER multibeam echosounder (240 kHz). Multibeam data for 2006 were acquired in .all format with a hull-mounted Kongsberg Simrad 1002 ER multibeam echosounder (95 kHz). Backscatter snippet collection was enabled. Line spacing for acquisition was three times the water depth, and data was retained out to 75 degrees from nadir in 2004 and 2005 and out to 60 degrees from nadir in 2006, depending on project area. Heave, roll, pitch and heading correctors were collected using an Applanix POS/MV Model 320 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 Seabird Seaterm software, then applied directly to the raw data. Positioning was obtained using Northstar 941X GPS receivers 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). Multibeam data for 2007 were acquired in .all format with a hull-mounted Kongsberg Simrad 1002 ER multibeam echosounder (95 kHz) for depths greater than 75 meters and in .xtf format with a Reson 8124 multibeam echosounder (200 kHz) for depths less than 75 meters. Backscatter snippet collection was enabled. Line spacing for acquisition was 3.5 times the water depth, and data was retained out to 55 degrees from nadir, for the Simrad, and 60 degrees from nadir, for the Reson, depending on project area. Multibeam data for 2008 were acquired in .all format with a hull-mounted Kongsberg Simrad 1002 ER multibeam echosounder (95 kHz). Backscatter snippet collection was enabled. Line spacing for acquisition was three times the water depth, and data was retained out to 55 degrees from nadir for areas deeper than 55 meters and 60 degrees from nadir for areas shallower than 55 meters. 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 SBE-911 and SBE-19 CTD profiler and processed using NOAA's Velocwin V8.85 software and converted to Simrad and CARIS format, then applied directly to the raw Simrad data. The Reson was also equipped with a real time sound velocity probe (Odom DigiBar Pro) at the sonar head and interfaced with the topside unit. Positioning was obtained using Trimble Zephyr GPS receivers 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). Process Date Range: 2004, 2005, 2006, 2007, 2008 Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06 HDCS Multibeam Data Process_Date: 2008 Process_Step: Process_Description: Raw GSF, XTF, and Simrad data (.all format) were converted and processed using CARIS HIPS 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. Process Date Range: 2004, 2005, 2006, 2007, 2008 Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 HDCS Multibeam Data Process_Date: 2008 Process_Step: Process_Description: After being submitted to CCMA by the contractor, CARIS HIPS 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 ASCII" was used to export a comma delimited ASCII XYZ file, with Easting, Northing, and Depth values, using ground position units (NAD83 UTM zone 20N). Process Date Range: 2004, 2005, 2006, 2007, 2008 Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 BASE Surface Process_Date: 2008 Process_Step: Process_Description: The ASCII XYZ file was opened in ArcMap 9.x and the 'Display XY Data' option was used to add the XY data as an event with spatial reference NAD83 UTM zone 20N. Finally, the ArcToolbox 9.x conversion tool "Feature to Raster" was then used to convert the XY event into an ESRI Grid, based on the depth field Z. These steps were accomplished using an inhouse Arc script which combined these functions and allowed bulk processing. Process Date Range: 2004, 2005, 2006, 2007, 2008 Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 ASCII XYZ Multibeam Data Process_Date: 2008 Process_Step: Process_Description: 2008 data for Isla De Mona and Tourmaline Bank, P.R. was merged with previous 2004-2007 data for Abrir La Sierra, Bajo de Cico, Isla De Mona, and La Parguera, P.R., and St. John, St. Croix, St. Thomas, USVI (reprojected to UTM zone 19 N) using the MERGE command in the Spatial Analyst raster calculator. Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 ASCII XYZ Multibeam Data Process_Date: 2008 Process_Step: Process_Description: An ESRI grid of source bathymetry was input into the Rugosity Builder Tool, a component of the ArcGIS Benthic Terrain Modeller (BTM). The BTM tool, a collection of ArcGIS terrain visualization tools developed by the Oregon State University (OSU) Department of Geosciences and the National Oceanic and Atmospheric Administration (NOAA) Coastal Services Center, calculated the rugosity of that bathymetric grid based on an algorithm developed by Jeff Jenness. A short summary of the process, quoted directly from the BTM's documentation, is as follows: "...rugosity derivation relies, in part, on a neighborhood analysis using a 3 grid cell by 3 grid cell neighborhood. An algorithm is passed through the Raster Map Algebra Operation object within Spatial Analyst that calculates the planar distance between the center point of the center cell and of each of the eight surrounding cells in the neighborhood. Next, using the Pythagorean Theorem, the surface distance is calculated for each planar distance using the difference in elevation between the cells. The result of this function is sixteen separate grid data sets with each cell value equal to this surface distance. The next step in the process is to calculate the area formed by three adjacent sides. The result is eight triangular surface area grids. These grid datasets are combined to obtain a surface area data set for the input bathymetric data set. The final step in the process is to create a data set that represents the ratio of surface area to planar area. This final data set represents rugosity for the study area." More information on the specific algorithms used, and contact points for questions, can be found in the BTM's documentation. Rugosity values near 1 represent flat smooth terrain, while higher values reflect increasing rugosity or terrain roughness. For rugosity grid interpretation, is recommended that the grid be reclassified according to standard deviation divisions. Source_Used_Citation_Abbreviation: NF-04-06/NF-05-05/NF-06-03/NF-07-06/NF-08-04 unified bathymetric ESRI GRID Process_Date: 2008 Process_Step: Process_Description: metadata added Process_Date: 2008 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 7028 Column_Count: 37647 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -69.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: Row and Column Coordinate_Representation: Abscissa_Resolution: 10.000000 Ordinate_Resolution: 10.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Program Contact_Position: Project Manager - US Caribbean Seafloor Characterization Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway, SSMC4 City: Silver Spring State_or_Province: MD Postal_Code: 20910 Country: USA Contact_Voice_Telephone: (301) 713-3028 Contact_Facsimile_Telephone: (301) 713-4384 Contact_Instructions: Contact info is for CCMA general reception. Please ask for current Biogeography project manager for US Caribbean Seafloor Characterization. Resource_Description: Downloadable Data Distribution_Liability: 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ESRI Grid Transfer_Size: 656.555 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/data/ Fees: None Metadata_Reference_Information: Metadata_Date: 20121231 Metadata_Review_Date: 20081113 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: NOAA/NOS/NCCOS/CCMA Biogeography Contact_Person: Project Manager Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway, SSMC4 City: Silver Spring State_or_Province: MD Postal_Code: 20910 Country: USA Contact_Voice_Telephone: (301) 713-3028 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Local Time Online_Linkage: http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile Online_Linkage: http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile CoRIS: CoRIS_ID: 20081113020854 CoRIS_Children: None CoRIS_Beginning_Date: 20040218 CoRIS_Ending_Date: 20080308 CoRIS_Metadata_Link: http://www.coris.noaa.gov/metadata/records/html/nccos_bathy_2008_rug_uni_0408.html CoRIS_Tracking_ID: 2370