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: 200603 Title: Bathymetry 2M Grid, Rugosity of Grammanik Bank (St. Thomas), US Virgin Islands, 2005, UTM 20 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 an ESRI Grid representing the rugosity of the bathymetry of Grammanik Bank south of St. Thomas, US Virgin Islands, based on a 2m bathymetric grid. 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, is 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 2/1/05 to 2/12/05. 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 and zoning from NOAA COOPS. Data is in UTM zone 20 north, datum NAD83. The processed CARIS data was used to generate a CARIS BASE surface based on swath angle. An ASCII XYZ file was exported from the BASE surface and opened in ESRI ArcMap 9 as an XY event. Then the ArcToolbox conversion tool 'Feature to Raster' was used to generate an ESRI Grid of bathymetry. The Benthic Terrain Modeller (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, was used to calculate the rugosity of that bathymetric grid. More information on the specific algorithms used can be found in the BTM's documentation. 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 derived bathymetry product is based on multibeam data that was collected as IOCM (Integrated Ocean and Coastal Mapping) project NF-05-05 during the second year of an ongoing NOAA scientific research mission in the US Caribbean to characterize nearshore coral reef habitats at depths down to 300 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 2005 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. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050201 Ending_Date: 20050212 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -64.986109 East_Bounding_Coordinate: -64.821925 North_Bounding_Coordinate: 18.225100 South_Bounding_Coordinate: 18.172076 Keywords: Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Rugosity Theme_Keyword: EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry 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_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Grid Theme_Keyword: Multibeam Theme_Keyword: SWMB Theme_Keyword: Raster Theme_Keyword: Biogeography Theme_Keyword: Nancy Foster Theme_Keyword: Reson 8101 Theme_Keyword: Seafloor Theme_Keyword: MBES Theme_Keyword: NF0505 Theme_Keyword: Sonar Theme_Keyword: NPS Theme_Keyword: IOCM Theme_Keyword: Integrated Ocean and Coastal Mapping Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: 006 Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Geographic Information > Habitats Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus 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 > U. S. Virgin Islands > U. S. Virgin Islands > U. S. Virgin Islands (17N064W0000) 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. Thomas > St. Thomas (18N064W0033) Place: Place_Keyword_Thesaurus: None Place_Keyword: Grammanik Place_Keyword: Grammanik Bank Place: Place_Keyword_Thesaurus: CoRIS Region Place_Keyword: USVI 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 Virgin Islands 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) 713-4388 Contact_Instructions: Contact info is for CCMA general reception. Please ask for current Biogeography project manager for USVI. 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 9.0.0.535 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-05-05. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: See Data Acquisition and Processing Report (DAPR) for NF-05-05. 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: NF-05-05 GSF Raw 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: 200502 Ending_Date: 200502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-05-05 GSF Raw Multibeam Data 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-05-05 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: 200502 Ending_Date: 200502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-05-05 HDCS Processed Multibeam Data Source_Contribution: Processed, cleaned, and corrected full resolution dataset. Sourced from raw 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-05-05 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: 200502 Ending_Date: 200502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-05-05 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: 200603 Title: NOAA ASCII XYZ Text File- Multibeam Bathymetry, US Virgin Islands, Project NF-05-05, 2005, UTM 20 NAD83 Geospatial_Data_Presentation_Form: tabular digital data Online_Linkage: http://ccma.nos.noaa.gov/ecosystems/coralreef/usvi_nps.aspx Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 200502 Ending_Date: 200502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-05-05 ASCII XYZ Multibeam Data Source_Contribution: Downsampled ASCII text file containing XYZ values. XYZ equals northing, easting, and depth in meters. Sourced from CARIS BASE surface. 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: 200603 Title: NOAA ESRI Grid- Multibeam Bathymetry, US Virgin Islands, Project NF-05-05, 2005, UTM 20 NAD83 Geospatial_Data_Presentation_Form: raster digital data Online_Linkage: http://ccma.nos.noaa.gov/ecosystems/coralreef/usvi_nps.aspx Type_of_Source_Media: external hard drive Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 200502 Ending_Date: 200502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: NF-05-05 ESRI Grid Multibeam Bathymetry Source_Contribution: Gridded bathymetry. Process_Step: Process_Description: For this project, the Chief Scientist was NOAA/NOS/NCCOS/CCMA's Tim Battista and the Lead Hydrographer was independent contractor Jay Lazar. Data was collected aboard the NOAA ship Nancy Foster from 2/1/05 to 2/12/05, as project number NF-05-05-VI. Multibeam data was acquired in GSF format with a pole-mounted Reson 8101 ER multibeam echosounder (240 kHz), with options 033, 037, and 040. Reson backscatter snippet collection was enabled. SAIC ISS 2000 software was used to interface with the Reson system. Line spacing for acquisition was three times the water depth, and data was retained out to 60 or 70 degrees from nadir, 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 GSF 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) primary tide stations at Charlotte Amalie, VI (9751639) and Lime Tree Bay, VI (9751401). Source_Used_Citation_Abbreviation: NF-05-05 GSF Multibeam Data Process_Date: 200502 Process_Step: Process_Description: Raw SWMB data in GSF (generic sensor format) format were converted and processed using CARIS HIPS v5.4 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. Process Date Range: 200502 - 200511 Source_Used_Citation_Abbreviation: NF-05-05 HDCS Multibeam Data Process_Date: 200511 Process_Step: Process_Description: After being submitted to CCMA by the contractor, CARIS HIPS v5.4 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). Source_Used_Citation_Abbreviation: NF-05-05 BASE Surface Process_Date: 200512 Process_Step: Process_Description: The ASCII XYZ file was opened in ArcMap 9 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 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. Source_Used_Citation_Abbreviation: NF-05-05 ASCII XYZ Multibeam Data Process_Date: 200512 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 directy 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 is recommended that the grid be reclassified according to standard deviation divisions. Source_Used_Citation_Abbreviation: NF-05-05 ESRI Grid Multibeam Bathymetry Process_Date: 200607 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: D:\Metadata\2005 Templates\2005_MBRugosity_Grid_MetadataTemplate.xml Process_Date: 200607 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 2845 Column_Count: 8656 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: 20 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -63.000000 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: 2.000000 Ordinate_Resolution: 2.000000 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 Virgin Islands 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) 713-4388 Contact_Instructions: Contact info is for CCMA general reception. Please ask for current Biogeography project manager for USVI. 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: 94.924 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: 20121220 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 Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 CoRIS: CoRIS_ID: 20070504122654 CoRIS_Children: None CoRIS_Beginning_Date: 20050201 CoRIS_Ending_Date: 20050212 CoRIS_Metadata_Link: http://www.coris.noaa.gov/metadata/records/html/nccos_bathymetry_2m_grid_rugosity_grammanik_bank_st_thomas_2005.html CoRIS_Tracking_ID: 1720