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     data   graph     files  public Abundance of Operational Taxonomic Units (OTU's) from images collected by the ROV/SCINI along
midwater transects under the McMurdo Ice Shelf, Dec. 2008
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Sites are centered at 78\u00b0 13.2\u2019S, 164\u00b0 14.1\u2019E, from North
500 meters north of this location, and South 500 meters south of this
location, within the center of the barranca. The bottom depth was 188 m.

Depths are in meters.

Animal densities are reported as number per meter. Transect imagery was
collected with the ROV SCINI.\u00a0 Organisms were identified to the lowest
possible taxon.
attribute NC_GLOBAL awards_0_award_nid String 743647
attribute NC_GLOBAL awards_0_award_number String PLR-0619622
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0619622 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Office of Polar Programs (formerly NSF PLR)
attribute NC_GLOBAL awards_0_funding_acronym String NSF OPP
attribute NC_GLOBAL awards_0_funding_source_nid String 713360
attribute NC_GLOBAL awards_0_program_manager String Dr Roberta Marinelli
attribute NC_GLOBAL awards_0_program_manager_nid String 51469
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Transect imagery results from ROV SCINI: (OTU) Taxonomic abundance (individuals per meter)
McMurdo Ice Shelf Midwater Transect, Dec. 2008
PI: S. Kim (MLML)
version: 2018-08-28
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2018-08-28T18:54:50Z
attribute NC_GLOBAL date_modified String 2019-12-02T22:11:37Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.744693.1
attribute NC_GLOBAL Easternmost_Easting double 164.2433
attribute NC_GLOBAL geospatial_lat_max double -78.2167
attribute NC_GLOBAL geospatial_lat_min double -78.2233
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 164.2433
attribute NC_GLOBAL geospatial_lon_min double 164.225
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/744693 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String ROV
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Submersible Capable of under Ice Navigation and Imaging (SCINI)�is a small, slender vehicle that can fit through a 20 cm hole in the ice, allowing for deployment without heavy drilling equipment and with minimal logistical support. Its maximum depth capability is 300 m. SCINI is equipped with two video cameras, scaling lasers, and lights,�with forward speeds of up to 4 knots. SCINI uses Ethernet over power on a 400 m long two-wire tether. A long baseline acoustic positioning system is used for navigation which�uses a combination of two to four acoustic transducers hanging below the ice and a synchronized pinger on the vehicle for�positional accuracy of better than 1 meter. [See Cazenave, F, R Zook, D Carroll, M Flagg, S Kim. �2011. �Development of the ROV SCINI and deployment in McMurdo Sound, Antarctica. �Journal of Ocean Technology 6(3):39-58.]
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 744696
attribute NC_GLOBAL instruments_0_description String Remotely operated underwater vehicles (ROVs) are unoccupied, highly maneuverable underwater robots operated by a person aboard a surface vessel. They are linked to the ship by a group of cables that carry electrical signals back and forth between the operator and the vehicle. Most are equipped with at least a video camera and lights. Additional equipment is commonly added to expand the vehicle’s capabilities. These may include a still camera, a manipulator or cutting arm, water samplers, and instruments that measure water clarity, light penetration, and temperature. More information.
attribute NC_GLOBAL instruments_0_instrument_name String Remotely Operated Vehicle
attribute NC_GLOBAL instruments_0_instrument_nid String 445
attribute NC_GLOBAL instruments_0_supplied_name String ROV/SCINI
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, data, dataset, date, depth, depth_m, dmo, dot, erddap, euphausia, latitude, length, longitude, management, medusazoa, mertensiidae, oceanography, office, pink, pink_dot, preliminary, replicate, streak, time, transect, transect_length_m, white, white_dot, white_streak
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/744693/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/744693 (external link)
attribute NC_GLOBAL Northernmost_Northing double -78.2167
attribute NC_GLOBAL param_mapping String {'744693': {'lat': 'master - latitude', 'lon': 'master - longitude', 'depth_m': 'master - depth'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/744693/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Moss Landing Marine Laboratories
attribute NC_GLOBAL people_0_affiliation_acronym String MLML
attribute NC_GLOBAL people_0_person_name String Dr Stacy Kim
attribute NC_GLOBAL people_0_person_nid String 51714
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Nancy Copley
attribute NC_GLOBAL people_1_person_nid String 50396
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String SCINI
attribute NC_GLOBAL projects_0_acronym String SCINI
attribute NC_GLOBAL projects_0_description String NSF Award Abstract:
In marine habitats worldwide, the zone between scuba-diving depths (to 40 m) and surge-free depths (below 200 m) has been poorly studied. Under ice-covered seas, wave motion is minimal to nonexistent, and the zone between 40 and 200 m is accessible to ROVs. Polar marine research has the benefit of stable sea ice platforms for staging and deploying instruments like ROVs, but this requires a hole that is, fo rmost ROVs, a meter in diameter. This proposal develops an ROV that can be deployed through a 15 cm hole that can be drilled with a hand-held power head, requiring minimal logistical support and technical expertise. The new ROV provides access to regions that remain unstudied, expanding our scientific reach and ability to address new questions. We will develop, test, and modify the ROV while accomplishing several overlapping and interdependent science objectives, including (1) exploration and documentation of rates and patterns of ecological succession from one of the most extreme coastal habitats in the world, (2) a survey of two unique benthic habitats and communities beyond scuba diving depths (at 40-170 m), which are almost completely unknown to most researchers and assembly of individual photographs into high-resolution images of the seafloor and (3) testing of protocols for conducting sonar mapping and creating high resolution continuous bathymetric maps of the entire seafloor around McMurdo Station. The ROV will be constructed as modules; this allows flexibility to change the ROV capabilities to suit different missions. Some components can be purchased off the shelf (e.g. VideoRay high resolution and low light video cameras), but may require development of some custom integration software. Power is provided from the surface via a 2 conductor tether; bi-directional high speed data is modulated on the tether as well, providing 84 mbs of data and unlimited dive duration. The topside controls consist of a laptop computer and joystick for the pilot. Many of the control functions and display screens could be accessed via the Internet for educational demonstrations and interactions. Two graduate students will participate fully in the project. Several other Antarctic scientists have indicated a strong interest in utilizing this tool in their research and it will be available to a pool of users on completion of the project.
attribute NC_GLOBAL projects_0_end_date String 2010-01
attribute NC_GLOBAL projects_0_geolocation String McMurdo Sound, McMurdo Ice Shelf
attribute NC_GLOBAL projects_0_name String Development of a Remotely Operated Vehicle for Under Sea Ice Research in Polar Environments
attribute NC_GLOBAL projects_0_project_nid String 743648
attribute NC_GLOBAL projects_0_start_date String 2007-02
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -78.2233
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Abundance of Operational Taxonomic Units (OTU's) from images collected by the ROV/SCINI along midwater transects under the McMurdo Ice Shelf, Dec. 2008
attribute NC_GLOBAL title String Abundance of Operational Taxonomic Units (OTU's) from images collected by the ROV/SCINI along midwater transects under the McMurdo Ice Shelf, Dec. 2008
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double 164.225
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -78.2233, -78.2167
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String latitude; north is positive
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double 164.225, 164.2433
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String longitude; east is positive
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable date   String  
attribute date bcodmo_name String date
attribute date description String sampling date formatted as yyyy-mm-dd
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date source_name String date
attribute date time_precision String 1970-01-01
attribute date units String unitless
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String sampling depth range
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable replicate   byte  
attribute replicate _FillValue byte 127
attribute replicate actual_range byte 1, 2
attribute replicate bcodmo_name String replicate
attribute replicate description String replicate number
attribute replicate long_name String Replicate
attribute replicate units String unitless
variable transect_length_m   float  
attribute transect_length_m _FillValue float NaN
attribute transect_length_m actual_range float 9.05, 88.2
attribute transect_length_m bcodmo_name String len_track
attribute transect_length_m description String length of transect
attribute transect_length_m long_name String Transect Length M
attribute transect_length_m units String meters
variable Mertensiidae   float  
attribute Mertensiidae _FillValue float NaN
attribute Mertensiidae actual_range float 0.0, 0.38
attribute Mertensiidae bcodmo_name String abundance
attribute Mertensiidae description String abundance of Mertensiidae along the transect as identified in SCINI images
attribute Mertensiidae long_name String Mertensiidae
attribute Mertensiidae nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute Mertensiidae units String number/meter along transect
variable white_streak   float  
attribute white_streak _FillValue float NaN
attribute white_streak actual_range float 0.0, 1.32
attribute white_streak bcodmo_name String abundance
attribute white_streak description String abundance of white streaks along the transect as identified in SCINI images
attribute white_streak long_name String White Streak
attribute white_streak nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute white_streak units String number/meter along transect
variable Medusazoa   float  
attribute Medusazoa _FillValue float NaN
attribute Medusazoa actual_range float 0.0, 0.11
attribute Medusazoa bcodmo_name String abundance
attribute Medusazoa description String abundance of Medusazoa along the transect as identified in SCINI images
attribute Medusazoa long_name String Medusazoa
attribute Medusazoa nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute Medusazoa units String number/meter along transect
variable white_dot   float  
attribute white_dot _FillValue float NaN
attribute white_dot actual_range float 0.0, 0.09
attribute white_dot bcodmo_name String abundance
attribute white_dot description String abundance of white dots along the transect as identified in SCINI images
attribute white_dot long_name String White Dot
attribute white_dot nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute white_dot units String number/meter along transect
variable Euphausia   float  
attribute Euphausia _FillValue float NaN
attribute Euphausia actual_range float 0.0, 0.09
attribute Euphausia bcodmo_name String abundance
attribute Euphausia description String abundance of Euphausia along the transect as identified in SCINI images
attribute Euphausia long_name String Euphausia
attribute Euphausia nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute Euphausia units String number/meter along transect
variable pink_dot   float  
attribute pink_dot _FillValue float NaN
attribute pink_dot actual_range float 0.0, 0.04
attribute pink_dot bcodmo_name String abundance
attribute pink_dot description String abundance of pink dots along the transect as identified in SCINI images
attribute pink_dot long_name String Pink Dot
attribute pink_dot nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/B070/ (external link)
attribute pink_dot units String number/meter along transect

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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