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Short Citation:
National Centers for Coastal Ocean Science, 2022: NOAA Point Shapefile- Benthic Habitat Classifications from Minibat ROV Underwater Video, US Virgin Islands, Project NF-04-06, 2004, UTM 20N WGS84, https://www.fisheries.noaa.gov/inport/item/38816.

Item Identification

Title: NOAA Point Shapefile- Benthic Habitat Classifications from Minibat ROV Underwater Video, US Virgin Islands, Project NF-04-06, 2004, UTM 20N WGS84
Short Name: NF04_USVI_ROV_TransectPoints_Metadata
Status: Completed
Publication Date: 2004-12
Abstract:

This dataset contains a point shapefile with benthic habitat classifications of vertical relief, geomorphological structure, substrate, and biological cover for selected points along various Remotely Operated Vehicle (ROV) underwater video transects in the US Virgin Islands.NOAA's NOS/NCCOS/CCMA Biogeography Team, in collaboration with NOAA vessel Nancy Foster and territory, federal, and private sector partners, acquired Remotely Operated Vehicle (ROV) underwater video data in the US Virgin Islands from 2/18/04 to 3/5/04. Data was acquired with a towed Minibat and georeferenced and visually interpreted by CCMA employees. Data is in UTM zone 20, datum WGS84.

Purpose:

This ROV video groundtruthing data was collected as project NF-04-06 during year one of a two-year NOAA scientific research mission in the US Virgin Islands to characterize nearshore coral reef habitats. The mission purpose is to better understand the resources within the surveyed reef habitats, and ultimately develop species utilization models linking physical habitats with biological information. The multibeam backscatter, multibeam bathymetry, and ground truth video footage collected during the 2004 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.

Notes:

682

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
ISO 19115 Topic Category 002
ISO 19115 Topic Category 007
ISO 19115 Topic Category 008
ISO 19115 Topic Category 014
ISO 19115 Topic Category biota
ISO 19115 Topic Category environment
ISO 19115 Topic Category geoscientificInformation
ISO 19115 Topic Category oceans
NOS Data Explorer Topic Category Bathymetry/Topography
NOS Data Explorer Topic Category Environmental Monitoring
None Benthic
None Biogeography
None Biological Cover
None BIRNM
None Buck
None Geomorphological Structure
None GIS
None Groundtruthing
None Habitat
None Mapping
None Minibat
None Nancy Foster
None NF-04-06
None NOAA
None Remotely Operated Vehicle
None ROV
None Seafloor
None St. Croix
None St. John
None Substrate
None Underwater Video
None US Virgin Islands
None USVI
None Video

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2004

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Buck Island Reef National Monument
None VICRNM
None Virgin Islands Coral Reef National Monument

Physical Location

Organization: National Centers for Coastal Ocean Science
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: vector digital 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.

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 ProgramDepartment of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS), Hydrographic Surveys Division (HSD)NOAA - NMAO personnel and ship NANCY FOSTER

Support Roles

Data Steward

CC ID: 443920
Date Effective From: 2004-12
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Distributor

CC ID: 443922
Date Effective From: 2004-12
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Metadata Contact

CC ID: 443923
Date Effective From: 2004-12
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Point of Contact

CC ID: 443921
Date Effective From: 2004-12
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Principal Investigator

CC ID: 443924
Date Effective From: 2004-12
Date Effective To:
Contact (Person): Battista, Tim
Email Address: tim.battista@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 443927
W° Bound: -64.830345
E° Bound: -64.562601
N° Bound: 18.290169
S° Bound: 17.796352

Extent Group 1 / Time Frame 1

CC ID: 443926
Time Frame Type: Range
Start: 2004-02-18
End: 2004-03-05

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 584597
Point Object Present?: Yes
Point Object Count: 3144

Access Information

Security Class: Unclassified
Data Access Procedure:

Click on link from project page to NCEI archive and download zip file.;

Data Access Constraints:

Please cite any use of this data.

Data Use Constraints:

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.

Distribution Information

Distribution 1

CC ID: 443928
Download URL: http://coastalscience.noaa.gov/projects/detail?key=263
Distributor:
Description:

Downloadable Data

File Type: ESRI Shapefile
File Size: 0.084

URLs

URL 1

CC ID: 443918
URL: http://coastalscience.noaa.gov/projects/detail?key=263
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 443974
Activity Date/Time: 2015-09-22
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 443973
Activity Date/Time: 2017-04-05
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 584595
Activity Date/Time: 2017-09-13
Description:

Partial upload of Spatial Info section only.

Activity Log 4

CC ID: 599507
Activity Date/Time: 2017-11-01
Description:

Replaced entire Lineage section to populate new Source Contribution field.

Activity Log 5

CC ID: 716460
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data Quality

Accuracy:

See ROV Characterization Methodology Report for NF-04-06. Due to variability in camera height, and camera listing and swinging, not all components of the habitat could be recorded consistently. To compensate for potential problems in scale and unknown habitats, each record was differentiated into one of five interpretation classes. The distinct interpretation classes were created based on which components of the habitat were visible. The distance classes (and the corresponding visible habitat components) are: 1) too close or too far (no components), 2) far (only structure), 3) far (only structure and substrate), 4) far (only structure, substrate and large organisms) and 5) appropriate distance (structure, substrate and large and small organisms).

Horizontal Positional Accuracy:

See ROV Characterization Methodology Report for NF-04-06. Time, ship velocity, tow cable length, and shipboard GPS coordinate data were used to estimate the MiniBats geographic position using a layback method. The layback method adjusts the ship's GPS position by the distance of the Minibat's relative position to the ship which is estimated by the tow cable length. Similar studies using this layback method have estimated positional accuracy is within 50 m (CRED, 2001).

Vertical Positional Accuracy:

See ROV Characterization Methodology Report for NF-04-06.

Completeness Report:

The ROV video was sampled and analyzed only at 30 second intervals- the seafloor area in between is uninterpreted.

Conceptual Consistency:

During interpretation and input of habitat values into the initial Excel spreadsheet, a Visual Basic script was used to ensure that all values conformed to logical rules and ranges (i.e. structure types are mutually exclusive, substrate type percentages must sum to 100%).Because of the Minibats's varying height above the seafloor, the area of seafloor analyzed at each sample point may vary.

Lineage

Sources

NF-04-06 ROV Underwater Video .wmv

CC ID: 599508
Contact Name: Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
Extent Type: Range
Extent Start Date/Time: 2004-02
Extent End Date/Time: 2004-03
Source Contribution:

Original underwater video of seafloor along transect.. | Source Geospatial Form: video | Type of Source Media: external hard drive

Process Steps

Process Step 1

CC ID: 599509
Description:

Video Acquisition:The NOAA ship Nancy Foster was used to collect underwater video of benthic habitats from February 22 to March 1, 2004. The seven transects collected traversed 30.5 km and provided approximately 10 hrs of video. Video was acquired using a downward pointing camera mounted on a towed underwater platform called the MiniBat. The MiniBat provided limited control of depth and was used to position the camera as close to 2 m off the bottom as possible. The camera height off the bottom ranged from 0.5 m to 10 m and averaged approximately 3 m. This range of differences translated into a range of camera field of views from approximately 0.5 m X 0.5 m to 10 m X 10 m with an average of 3 m X 3 m. Ship velocity and correspondingly camera velocity was approximately 1 m/s. All video was taken during daylight hours to guarantee sufficient ambient light levels for visual interpretation. Video was recorded onto MiniDV tapes as it was acquired. Time and GPS position as recorded by Trimble GPS units were fed into the video using a Horita GPT-50 real time video titler. Time, ship velocity, tow cable length, and shipboard GPS coordinates were recorded along with the video. This data was used to estimate the MiniBats geographic position using a layback method. The layback method adjusts the ship's GPS position by the distance of the Minibat's relative position to the ship which is estimated by the tow cable length. Similar studies using this layback method have estimated positional accuracy is within 50 m (CRED, 2001).

Process Date/Time: 2004-03-01 00:00:00

Process Step 2

CC ID: 599510
Description:

Benthic Habitat InterpretationThe benthic habitat was characterized by visual interpretation of video images by two video interpreters. Video on the MiniDV tapes were displayed on a television using a digital video camera or miniDV cassette recorder. A transparent sheet demarcated with a 10 X 10 grid was fitted to the television screen to facilitate percent cover estimates. The video was paused every 10 seconds and the image was interpreted for three components of benthic habitat: structure, substrate and biological cover. Structure referred to the broad-scale habitat class within the entire field of view. Based on previous benthic habitat work in the area (Kendall et al., 2001) the structure designation was chosen from either 1) colonized pavement, 2) colonized pavement with sand channels, 3) sand, 4) scattered coral and rock in sand, or 5) other (with description). Substrate described the visible abiotic components of the benthic habitat. The four substrate classes, considered mutually exclusive and exhaustive were 1) consolidated material, 2) sand, 3) rubble (particles ~ 2-10 cm) and 4) cobble (particles < 10 cm). Substrate was measured to the nearest percent of the visible bottom. An estimate of rugosity was approximated by the vertical range of substrate in the field of view and was classified as either high (> 0.3 m) or low (<0.3 m).Biological cover referred to the biotic component of the seafloor and was divided among five mutually-exclusive categories differentiated by their size and shape. These were 1) sponge (Phylum Porifera), 2) soft coral (Subclass Octocorallia and subclass Ceriantipatharia), 3) hard coral (Subclass Hexacorallia), and 4) fleshy algae and 5) algae veneer. The sum of all cover categories provided an estimate of total colonization. If a biological cover component could not be unquestionably identified as one of the five cover categories it was only added to the total colonization estimate.Interpretation results were inputed into an Excel spreadsheet, with a single record for each sample point. These sample points and their associated benthic habitat attributes were then imported in ESRI ArcMap and converted into point shapefiles.

Process Date/Time: 2004-12-01 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity NF-04-06_ROV_Transects_Points_UTM

Catalog Details

Catalog Item ID: 38816
GUID: gov.noaa.nmfs.inport:38816
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 12:49+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2018-02-08
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-02-08
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-02-08