38817
NOAA Transet Lines Shapefile- Benthic Habitat Classifications from Minibat ROV Underwater Video, US Virgin Islands, Project NF-04-06, 2004, UTM 20N WGS84
NF04_USVI_ROV_TransectsLines_Metadata
Data Set
Published / External
37205
SeafloorMapping_USCaribbean_2004toOngoing
Project
Completed
2004-12
This dataset contains a line shapefile showing the trackline of 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.
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.
683
Theme
ISO 19115 Topic Category
biota
Theme
ISO 19115 Topic Category
environment
Theme
ISO 19115 Topic Category
geoscientificInformation
Theme
ISO 19115 Topic Category
oceans
Theme
NOS Data Explorer Topic Category
Bathymetry/Topography
Theme
NOS Data Explorer Topic Category
Environmental Monitoring
Theme
BIRNM
Theme
Benthic
Theme
Biogeography
Theme
Biological Cover
Theme
Buck
Theme
GIS
Theme
Geomorphological Structure
Theme
Groundtruthing
Theme
Habitat
Theme
Mapping
Theme
Minibat
Theme
NF-04-06
Theme
NOAA
Theme
Nancy Foster
Theme
ROV
Theme
Remotely Operated Vehicle
Theme
Seafloor
Theme
St. Croix
Theme
St. John
Theme
Substrate
Theme
Transect
Theme
US Virgin Islands
Theme
USVI
Theme
Underwater Video
Theme
Video
Temporal
2004
Spatial
Buck Island Reef National Monument
Spatial
VICRNM
Spatial
Virgin Islands Coral Reef National Monument
National Centers for Coastal Ocean Science
Silver Spring
MD
Data Set
As Needed
vector digital data
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.
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
40967
ROV_2004_Transects_Lines_All_UTM
ROV_2004_Transects_Lines_All_UTM
Published / External
Completed
Shapefile attribute table | Description Source: ESRI
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
FID
Unknown
No
No
Active
Internal feature number. | Description Source: ESRI
Sequential unique whole numbers that are automatically generated.
2
Shape
Unknown
No
No
Active
Feature geometry. | Description Source: ESRI
Coordinates defining the features.
3
Transect
Unknown
No
No
Active
ROV Transect Identifier | Description Source: NCCOS - Biogeography
Unique identifier
4
Dive
Unknown
No
No
Active
Dive number. | Description Source: NCCOS- Biogeography
Unique identifier.
5
transect
Unknown
No
No
Active
Unknown | Description Source: Unknown
Unknown
Data Steward
2004-12
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Distributor
2004-12
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Metadata Contact
2004-12
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Point of Contact
2004-12
Position
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov
Principal Investigator
2004-12
Person
Battista, Tim
tim.battista@noaa.gov
Ground Condition
-64.830339
-64.562628
18.29009
17.796539
Range
2004-02-18
2004-03-05
Yes
Yes
7
Unclassified
Click on link from project page to NCEI archive and download zip file.;
Please cite any use of this data.
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.
http://coastalscience.noaa.gov/projects/detail?key=263
Downloadable Data
ESRI Shapefile
Shapefile
0.001
http://coastalscience.noaa.gov/projects/detail?key=263
Online Resource
2015-09-22
Date that the source FGDC record was last modified.
2017-04-05
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.
2017-09-13
Partial upload of Spatial Info section only.
2017-11-01
Replaced entire Lineage section to populate new Source Contribution field.
2018-02-08
Partial upload of Positional Accuracy fields only.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
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).
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).
See ROV Characterization Methodology Report for NF-04-06.
This file shows the the location of the ROV transects only. Actual data points and habitat classifications are not included.
Unknown
NF-04-06 ROV Underwater Video .wmv
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Center for Coastal Monitoring and Assessment (CCMA), Biogeography Branch
Range
2004-02
2004-03
Original underwater video of seafloor along transect.. | Source Geospatial Form: video | Type of Source Media: external hard drive
1
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).
2004-03-01T00:00:00
2
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 joined into line shapefiles showing transect extents.
2004-12-01T00:00:00
40967
Entity
ROV_2004_Transects_Lines_All_UTM
gov.noaa.nmfs.inport:38817
Tyler Christensen
2017-04-05T12:49:02
SysAdmin InPortAdmin
2023-10-17T16:12:11
2018-02-08
National Centers for Coastal Ocean Science
NCCOS
1002
Public
No
2018-02-08
1 Year
2019-02-08