Identification_Information: Citation: Citation_Information: Originator: Bryan Costa, NOAA/NOS/NCCOS/CCMA Biogeography Branch Publication_Date: 2009 Title: St. John Moderate-Depth Benthic Habitat Map derived from Acoustic Imagery Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Silver Spring, MD Publisher: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) Other_Citation_Details: Please use citation for the written document "Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands" when using these data. Online_Linkage: https://coastalscience.noaa.gov/projects/detail?key=205 Larger_Work_Citation: Citation_Information: Originator: 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 Program Publication_Date: 2009 Title: Benthic Habitats of St. John, U.S. Virgin Islands Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Silver Spring, MD Publisher: NOAA National Centers for Coastal Ocean Science Other_Citation_Details: Costa, B.M., L.J. Bauer, T.A. Battista, P.W. Mueller and M.E. Monaco. 2009.Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands. NOAA Technical Memorandum NOS NCCOS 105. Silver Spring, MD. 55 pp. Description: Abstract: Benthic habitats of the moderate-depth marine environment in and around the Virgin Islands Coral Reef National Monument were mapped using a combination of semi-automated classification and visual interpretation of acoustic imagery. The objective of this effort, conducted by NOAA's Center for Coastal Monitoring and Assessment - Biogeography Branch in partnership with the U.S. National Park Service (NPS), was to provide spatially-explicit information on the habitat types, biological cover and live coral cover of the moderate-depth area south of St. John. Purpose: This product provides a fine-scale assessment of the status, abundance, and distribution of moderate-depth marine habitats south of St. John. The NOAA effort provides the U.S. National Park Service with increased technical capacity for ocean exploration, management, and stewardship. Direct implications to management measures include evaluation of management efficacy, a spatial framework for improved monitoring sampling design, improved assessment of human-use impacts, and marine spatial planning to support alternative marine protected area boundary alternatives. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Time_of_Day: unknown Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -64.795781 East_Bounding_Coordinate: -64.658562 North_Bounding_Coordinate: 18.313145 South_Bounding_Coordinate: 18.233189 Keywords: Theme: Theme_Keyword_Thesaurus: NCEI Geoportal Filter Theme_Keyword: CoRIS_Metadata Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Geographic Information > Habitats Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: coral reef Theme_Keyword: benthic habitats Theme_Keyword: reef Theme_Keyword: submerged aquatic vegetation Theme_Keyword: unconsolidated sediments Theme_Keyword: zone Theme_Keyword: geomorphological structure Theme_Keyword: biological cover Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: 010 Theme_Keyword: environment Theme_Keyword: 007 Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: U. S. Virgin Islands Place_Keyword: St. John Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus 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: Place_Keyword_Thesaurus: CoRIS Region Place_Keyword: USVI Access_Constraints: None Use_Constraints: Not for navigation. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Bryan Costa Contact_Organization: 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 Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway, N-SCI-1, SSMC 4, 9th Floor City: Silver Spring State_or_Province: MD Postal_Code: 20910 Contact_Voice_Telephone: 301-713-3028 x146 Contact_Facsimile_Telephone: 301-713-4384 Contact_Electronic_Mail_Address: bryan.costa@noaa.gov Hours_of_Service: 0800 - 1700, Monday to Friday, EST Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: A comprehensive assessment was conducted to evaluate the thematic accuracy of the St. John moderate-depth benthic habitat map. Thematic accuracy was characterized for major and detailed geomorphological structure, major and detailed biological cover, and percent coral cover. An independent accuracy assessment revealed overall map accuracies to be over 95% for major structure and cover classes, and over 88% and 74% for detailed structure and cover classes, respectively. The 88.7% accuracy achieved for detailed structure in NOAA's moderate-depth benthic habitat map is similar to the accuracies of recent NOAA shallow-water benthic habitat map for St. John (85.7%), as well as for the Florida Keys (86.2%), Palau (90.0%), and the Main Eight Hawaiian Islands (90.0%). Logical_Consistency_Report: Acoustic imagery was acquired for the southern VICRNM boundaries on two separate missions onboard the NOAA ship, Nancy Foster. The first mission took place from 2/18 to 3/5/2004, and the second mission took place from 2/1 to 2/12/2005. On both missions, seafloor depths between 14 to 55 m were mapped using a RESON SeaBat 8101 ER (240 kHz) MBES sensor (Figure 2.5). This pole-mounted system measured water depths across a 150 degree swath consisting of 101 individual 1.5 degree x 1.5 degree beams. The vessel survey speed was between 5 and 8 knots. In 2004, the ship's location was determined by a Trimble DSM 132 DGPS system, which provided a RTCM differential data stream from the U.S. Coast Guard Continually Operating Reference Station (CORS) at Port Isabel, Puerto Rico. Gyro, heave, pitch and roll correctors were acquired using an Ixsea Octans gyrocompass. In 2005, the ship's positioning and orientation were determined by the Applanix POS/MV 320 V4, which is a GPS aided Inertial Motion Unit (IMU) providing measurements of roll, pitch and heading. The POS/ MV obtained its positions from two dual frequency Trimble Zephyr GPS antennae. An auxiliary Trimble DSM 132 DGPS system provided a RTCM differential data stream from the U.S. Coast Guard CORS at Port Isabel, Puerto Rico. For both years, CTD (conductivity, temperature and depth) measurements were taken approximately every 4 hours using a Seabird Electronics SBE-19 to correct for changing sound velocities in the water column. GIS topologic quality was established by executing ArcGIS extension routines that check for: overlapping polygons, multipart polygons, sliver polygons and void polygons. Additionally checks for adjacent polygons with the same habitat attributes were completed. All errors were identified and corrected. This file is believed to be logically consistent. Completeness_Report: Delineation of all habitat boundaries was conducted using edge-detection algorithms. The minimum mapping unit (MMU) for identifying habitats or features was 1,000 square meters. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Please see the following document for more information on positional accuracy: Battista, T. A., and Lazar, J.V. (2005). MBES data acquisition & processing report: Project NF-05-05-USVI, NOAA Data Acquisition & Processing Report, NOS NCCOS CCMA (On-line). On-line: http://ccma.nos.noaa.gov/products/biogeography/usvi_nps/pdf/NF-05-05_DAPR.pdf Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Costa, B.M., L.J. Bauer, T.A. Battista, P.W. Mueller and M.E. Monaco. Publication_Date: 2009 Title: Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Silver Spring, MD Publisher: NOAA's Ocean Service, National Centers for Coastal Ocean Science (NCCOS) Other_Citation_Details: Costa, B.M., L.J. Bauer, T.A. Battista, P.W. Mueller and M.E. Monaco. 2009. Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands. NOAA Technical Memorandum NOS NCCOS 105. Silver Spring, MD. 55 pp. Type_of_Source_Media: report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Chapter 1: Benthic Habitat Classification Scheme of Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands Source_Contribution: This section of the report describes the habitat classification scheme used to classifiy habitat features. The St. John habitat classification scheme defines benthic communities on the basis of four primary coral reef ecosystem attributes: 1) broad geographic zone, 2) geomorphological structure type, 3) dominant biological cover, and 4) degree of live coral cover. Source_Information: Source_Citation: Citation_Information: Originator: Ken Buja Publication_Date: 2009 Title: NOAA Habitat Digitizer Extension Publication_Information: Publication_Place: Silver Spring, MD Publisher: NOAA's Ocean Service (NOS), National Centers for Coastal Ocean Science (NCCOS) Other_Citation_Details: NOAA. 2009. Habitat Digitizer Extension. NOAA Biogeography Branch. Silver Spring, MD. Available: https://coastalscience.noaa.gov/projects/detail?key=203. Online_Linkage: https://coastalscience.noaa.gov/projects/detail?key=203 Type_of_Source_Media: computer program Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: NOAA Habitat Digitizer Extension Source_Contribution: This ArcGIS extension was used to digitize and attribute benthic zones, structure and biological cover of this map. Source_Information: Source_Citation: Citation_Information: Originator: Space Imaging Inc. Publication_Date: 2005 Title: IKONOS Satellite Imagery Geospatial_Data_Presentation_Form: remote-sensing image Publication_Information: Publication_Place: Thornton, CO Publisher: Space Imaging Inc. Other_Citation_Details: This imagery was obtained at a 4 m pixel resolution, deglinted and pan sharpened. Type_of_Source_Media: raster digital data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2003 Ending_Date: 2005 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: IKONOS satellite imagery Source_Contribution: Used to identify and digitize benthic habitats of St. John, USVI. Source_Information: Source_Citation: Citation_Information: Originator: 3001, Inc. Publication_Date: 2007 Title: Orthophotography Geospatial_Data_Presentation_Form: remote-sensing image Publication_Information: Publication_Place: 401 Dividend Drive, Suite K, Peachtree City, GA 30269 Publisher: 3001, Inc. Other_Citation_Details: Imagery acquired on contract to the U.S. Army Corps of Engineers Type_of_Source_Media: raster digital data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Orthophotography Source_Contribution: Used to identify and digitize benthic habitats of St. John, USVI. Process_Step: Process_Description: 1) Imagery Acquisition and Processing - The first step in this process was to acquire and process high-resolution acoustic imagery. Acoustic imagery was collected during two separate years, in order to map the full geographic extent of the VICRNM's southern boundaries. Several metrics were derived from the depth imagery, in order to describe the complexity of the seafloor in different ways. Principal components analysis was then used to reduce the redundancy of information contained in these metrics. Process_Date: 2005 and 2009 Process_Date: 2009 Process_Step: Process_Description: 2) Habitat Boundary Delineation - A first draft benthic habitat map was generated using edge detection algorithms to delineate features on the seafloor with discrete acoustic signatures. During the creation of this first draft map, the cartographer placed discrete points on features in the map that had unknown acoustic signatures, warranting further field investigation. Points were also placed on features with known acoustic signatures (evenly distributed throughout the geographic extent of the map) to confirm that the habitats associated with these signatures remained consistent through the area of interest. These two types of points were labeled as "ground validation" sites and were visited in the field. Process_Date: 2009 Process_Step: Process_Description: 3) Ground Validation (GV) - NOAA scientists explored these ground validation locations using two different sampling techniques and two different pieces of equipment. Specifically, underwater video was collected along 13 transects using a remotely operated vehicle (ROV), and at 117 discrete points using a manually operated drop camera. The resulting GPS and video information was processed, analyzed and used to train the classification algorithm that was used to generate the second draft map. Process_Date: 2005 and 2009 Process_Date: 2009 Process_Step: Process_Description: 4) Habitat Classification - A CART-like (Classification and Regression Tree) algorithm was used to classify each habitat feature delineated by the edge-detection algorithms described in step 2. To simplify this classification process, coral reef habitat features, and soft bottom and rhodolith habitat features were classified separately. The classification algorithm separated these two habitat feature types into different major and detailed structure, biological cover and lives coral classes. The two, resulting classifications were merged together and manually edited to create a final seamless habitat map. Process_Date: 2009 Process_Step: Process_Description: 5) Accuracy Assessment (AA) - AA sites were generated using a stratified random sampling design (based on detailed structure type) that allowed for a statistically rigorous assessment of map accuracy. Underwater video was collected at these 299 sites using a manually operated drop camera. Process_Date: 2009 Process_Step: Process_Description: 6) Final Products Creation - A final benthic habitat map for the VICRNM was generated by correcting inaccuracies identified by the accuracy assessment. Additionally, all associated datasets, including GIS files, field video and metadata were packaged and provided to project partners. Process_Date: 2009 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-Polygon Point_and_Vector_Object_Count: 1283 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: Coordinate Pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 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 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: StJohn_ModerateDepth_Benthic_Habitats Entity_Type_Definition: Shapefile attribute table Entity_Type_Definition_Source: None Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: UniqueID Attribute_Definition: A distinct identifier used to define each unique combination of habitat characteristics Attribute_Definition_Source: NOAA Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Specific code used for NOAA coral reef habitat maps Codeset_Source: Described in "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute: Attribute_Label: Area Attribute_Definition: Calculated feature area (sq m) Attribute_Definition_Source: NOAA Attribute_Domain_Values: Unrepresentable_Domain: Area of feature in square meters. Attribute: Attribute_Label: Perimeter Attribute_Definition: Calculated feature perimeter (m) Attribute_Definition_Source: NOAA Attribute_Domain_Values: Unrepresentable_Domain: Length of feature perimeter in meters Attribute: Attribute_Label: Zone_ Attribute_Definition: Geographic Zone Attribute_Definition_Source: NOAA Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: Maj_Struct Attribute_Definition: Major Geomorphological Structure Attribute_Definition_Source: Refer to Chapter 1: Benthic Habitat Classification Scheme of "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: Det_Struct Attribute_Definition: Detailed Geomorphological Structure Attribute_Definition_Source: Refer to Chapter 1: Benthic Habitat Classification Scheme of "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: Maj_Cover Attribute_Definition: Major Biological Cover Attribute_Definition_Source: Refer to Chapter 1: Benthic Habitat Classification Scheme of "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: P_Maj_Cov Attribute_Definition: Percent Patchiness of Major Biological Cover Attribute_Definition_Source: Refer to Chapter 1: Benthic Habitat Classification Scheme of "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: P_Coral_Cv Attribute_Definition: Percent Cover of Live Coral Attribute_Definition_Source: Refer to Chapter 1: Benthic Habitat Classification Scheme of "Benthic Habitats of St. John, U.S. Virgin Islands" (Zitello et al. 2009) Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: Cover Attribute_Definition: Concatenation of Major Biological Cover and Percent Major Biological Cover. Used to describe the combination of major biological cover and its percent patchiness of the feature Attribute_Definition_Source: NOAA Attribute_Domain_Values: Unrepresentable_Domain: Unknown Attribute: Attribute_Label: Habitat Attribute_Definition: Concatenation of Detailed Geomorphological Structure, Major and Percent Biological Cover and Percent Major Biological Cover, and Live Coral Cover Attribute_Definition_Source: NOAA Attribute_Domain_Values: Unrepresentable_Domain: Unknown Overview_Description: Entity_and_Attribute_Overview: Specific details of the attributes and values therein can be found in Chapter 1: Benthic Habitat Classification Scheme of "Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands" (Costa et al. 2009). Entity_and_Attribute_Detail_Citation: Costa, B.M., L.J. Bauer, T.A. Battista, P.W. Mueller and M.E. Monaco. 2009. Moderate-Depth Benthic Habitats of St. John, U.S. Virgin Islands. NOAA Technical Memorandum NOS NCCOS 105. Silver Spring, MD. 55 pp. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: 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 Program Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway City: Silver Spring State_or_Province: MD Postal_Code: 20910 Contact_Voice_Telephone: 301-713-3028 x171 Contact_Facsimile_Telephone: 301-713-4384 Contact_Electronic_Mail_Address: tim.battista@noaa.gov Hours_of_Service: 0800 - 1700, Monday to Friday, EST Resource_Description: Downloadable Data Distribution_Liability: The National Oceanic and Atmospheric Administration (NOAA) National Centers for Coastal Ocean Science (NCCOS) is publishing this data on their website. NCCOS Biogeography Branch does not guarantee the accuracy of the geographic features or attributes. Please see the written report and metadata records for each data set for complete information on the source, limitations, and proper use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapfile Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://coastalscience.noaa.gov/datasets/e94/data/StJohn_ModerateDepth_Habitat_Map.zip Fees: None Custom_Order_Process: Contact NOAA for distribution options (see Distributor). Metadata_Reference_Information: Metadata_Date: 20200329 Metadata_Review_Date: 20100223 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: 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 Contact_Address: Address_Type: mailing and physical address Address: 1305 East West Highway City: Silver Spring State_or_Province: MD Postal_Code: 20910 Contact_Voice_Telephone: 301-713-3028 Contact_Facsimile_Telephone: 301-713-4384 Hours_of_Service: 0800 - 1700, Monday to Friday, EST Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Local Time CoRIS: CoRIS_ID: 20100223093110 CoRIS_Children: None CoRIS_Beginning_Date: 20050101 CoRIS_Ending_Date: 20051231 CoRIS_Metadata_Link: https://www.coris.noaa.gov/metadata/records/html/metadata_stjohn_moderatedepth_benthic_habitats.html CoRIS_Tracking_ID: 4482