St. John Moderate-Depth Benthic Habitat Map derived from Acoustic Imagery

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Metadata:


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: <http://ccma.nos.noaa.gov/ecosystems/coralreef/benthic/>
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: 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: <http://ccma.nos.noaa.gov/products/biogeography/digitizer/welcome.html>.
Online_Linkage:
<http://ccma.nos.noaa.gov/products/biogeography/digitizer/welcome.html>
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.
Online_Linkage: www.spaceimaging.com
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:

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: 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/ccma/biogeo/benthic_stjohn/StJohn_ModerateDepth_Habitat_Map.zip>
Fees: None
Custom_Order_Process: Contact NOAA for distribution options (see Distributor).

Metadata_Reference_Information:
Metadata_Date: 20121220
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:
<http://www.coris.noaa.gov/metadata/records/html/metadata_stjohn_moderatedepth_benthic_habitats.html>
CoRIS_Tracking_ID: 4482

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