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Title Sum-
Institution Dataset ID
     data   graph     files  public IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence
M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015
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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,.odvTxt
attribute NC_GLOBAL acquisition_description String Net Sampling:

Open oblique net tows were made with a 1.8 m Isaacs-Kidd Midwater Trawl
(IKMT), fitted with 505 um mesh and a protected cod end, fished from 0 to
~155m at ship speeds of ~2 kts.

During LMG14-10 and LMG15-04 an underwater video camera system was suspended
from the IKMT spreader bar allowing video recordings of material being fished
by the net at some stations (indicated in data log).\u00a0
attribute NC_GLOBAL awards_0_award_nid String 683960
attribute NC_GLOBAL awards_0_award_number String PLR-1347911
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1347911 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Christian Fritsen
attribute NC_GLOBAL awards_0_program_manager_nid String 683959
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Net Tow Data
V. Loeb and J. Santora, PIs
Version 19 June 2017
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 2017-06-20T17:08:39Z
attribute NC_GLOBAL date_modified String 2019-03-27T20:19:29Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.705556.1
attribute NC_GLOBAL Easternmost_Easting double -55.97
attribute NC_GLOBAL geospatial_lat_max double -54.89
attribute NC_GLOBAL geospatial_lat_min double -64.95
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -55.97
attribute NC_GLOBAL geospatial_lon_min double -65.02
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 180.0
attribute NC_GLOBAL geospatial_vertical_min double 50.0
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/705556 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String camera
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Used for underwater video recording
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 705625
attribute NC_GLOBAL instruments_0_description String All types of photographic equipment including stills, video, film and digital systems.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/311/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Camera
attribute NC_GLOBAL instruments_0_instrument_nid String 520
attribute NC_GLOBAL instruments_0_supplied_name String GoPro Hero3+ Black Edition
attribute NC_GLOBAL keywords String atmosphere, atmospheric, bco, bco-dmo, biogeographic, biogeographic_zone, biological, bottom, bottom_depth, chemical, data, dataset, date, depth, diel, direction, dmo, earth, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, end, end_GMT, erddap, filtered, iso, lat_deg, lat_min, latitude, lon_deg, lon_min, longitude, management, notes, oceanography, office, preliminary, science, sea, speed, SST, start, start_GMT, station, surface, temperature, time, tow, tow_depth, underwater, underwater_video, video, volume, volume_filtered, wind, wind_direction, wind_from_direction, wind_speed, winds, zone
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/705556/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/705556 (external link)
attribute NC_GLOBAL Northernmost_Northing double -54.89
attribute NC_GLOBAL param_mapping String {'705556': {'lat': 'master - latitude', 'tow_depth': 'master - depth', 'lon': 'master - longitude', 'ISO_DateTime_UTC': 'master - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/705556/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 Valerie Jean Loeb
attribute NC_GLOBAL people_0_person_nid String 683963
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 University of California-Santa Cruz
attribute NC_GLOBAL people_1_affiliation_acronym String UC Santa Cruz
attribute NC_GLOBAL people_1_person_name String Jarrod A Santora
attribute NC_GLOBAL people_1_person_nid String 683965
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Moss Landing Marine Laboratories
attribute NC_GLOBAL people_2_affiliation_acronym String MLML
attribute NC_GLOBAL people_2_person_name String Valerie Jean Loeb
attribute NC_GLOBAL people_2_person_nid String 683963
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Hannah Ake
attribute NC_GLOBAL people_3_person_nid String 650173
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String DrakeBioGould
attribute NC_GLOBAL projects_0_acronym String DrakeBioGould
attribute NC_GLOBAL projects_0_description String PI supplied abstract:
A 50+ year warming trend in the Southern Ocean has been most dramatic in Drake Passage and likely impacts ecosystem structure here. Acoustic Doppler Current Profiler (ADCP) records from multiple NSF “L.M. Gould” supply transits of Drake Passage from 1999 to present demonstrate spatial and temporal variability in acoustics backscattering. Acoustics backscattering strength in the upper water column corresponds to zooplankton and nekton biomass that supports predator populations. However, for much of Drake Passage the identity of taxa contributing to this acoustically detected biomass is not known. This project would introduce a biological component to “L.M. Gould” transits of Drake Passage with the goal of determining the identity of taxa responsible for the backscattering records obtained by ADCP and relating these to higher trophic levels (seabird/marine mammal). Net sampling during spring and fall transits will permit assessment of diel and seasonal changes in the abundance and taxonomic composition of zooplankton and top predators represented between Patagonia and the Antarctic Peninsula. Net samples and depth-referenced video records taken in conjunction with ADCP profiles will permit the identification of the dominant acoustic backscatters in the 3 biogeographic regions represented here, the Subantarctic, Polar Frontal, and Antarctic Zones. The validity of dominant backscattering taxa in the Antarctic Zone will be tested by comparing the ADCP records with abundant zooplankton data collected off the Antarctic Peninsula during January-March 1999-2009 as well with long-term top predator surveys. The broader impacts also included cruise blogs to Moss Landing Marine Laboratories and Monterey Academy of Oceanographic Science (Monterey High School, Monterey CA) plus involvement with MAOS  faculty and students providing first-hand data and insight into marine research in a near real-time format.  The faculty used this opportunity to engage students in “real” science while focusing on implementing instruction using the Next Generation Science Standards.
attribute NC_GLOBAL projects_0_end_date String 2016-11
attribute NC_GLOBAL projects_0_geolocation String Drake Passage, South Shetland Islands
attribute NC_GLOBAL projects_0_name String Pilot Study: Addition of Biological Sampling to Drake Passage Transits of the "L.M. Gould"
attribute NC_GLOBAL projects_0_project_nid String 683961
attribute NC_GLOBAL projects_0_start_date String 2013-12
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 -64.95
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015
attribute NC_GLOBAL time_coverage_end String 2015-11-11T23:37:00Z
attribute NC_GLOBAL time_coverage_start String 2014-10-29T01:34:00Z
attribute NC_GLOBAL title String IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -65.02
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable station   String  
attribute station bcodmo_name String station
attribute station description String Station where samples were taken
attribute station long_name String Station
attribute station units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.41454644E9, 1.44728502E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date/Time (UTC) ISO formatted
attribute time ioos_category String Time
attribute time long_name String ISO Date Time UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DateTime_UTC
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable date   String  
attribute date bcodmo_name String date
attribute date description String Date samples were taken; 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 time_precision String 1970-01-01
attribute date units String unitless
variable start_GMT   String  
attribute start_GMT bcodmo_name String time_begin
attribute start_GMT description String Start time of net tow; HH:MM
attribute start_GMT long_name String Start GMT
attribute start_GMT units String unitless
variable end_GMT   String  
attribute end_GMT bcodmo_name String time_end
attribute end_GMT description String End time of net tow; HH:MM
attribute end_GMT long_name String End GMT
attribute end_GMT units String unitless
variable lat_deg   byte  
attribute lat_deg _FillValue byte 127
attribute lat_deg actual_range byte 54, 64
attribute lat_deg bcodmo_name String latitude
attribute lat_deg colorBarMaximum double 90.0
attribute lat_deg colorBarMinimum double -90.0
attribute lat_deg description String Latitude; degrees (S)
attribute lat_deg long_name String Latitude
attribute lat_deg nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute lat_deg standard_name String latitude
attribute lat_deg units String degrees minutes
variable lat_min   float  
attribute lat_min _FillValue float NaN
attribute lat_min actual_range float 0.1, 59.88
attribute lat_min bcodmo_name String latitude
attribute lat_min colorBarMaximum double 90.0
attribute lat_min colorBarMinimum double -90.0
attribute lat_min description String Latitude; minutes
attribute lat_min long_name String Latitude
attribute lat_min nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute lat_min standard_name String latitude
attribute lat_min units String degrees minutes
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -64.95, -54.89
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 in decimal degrees
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 lon_deg   byte  
attribute lon_deg _FillValue byte 127
attribute lon_deg actual_range byte 55, 65
attribute lon_deg bcodmo_name String longitude
attribute lon_deg colorBarMaximum double 180.0
attribute lon_deg colorBarMinimum double -180.0
attribute lon_deg description String Longitude; degrees (W)
attribute lon_deg long_name String Longitude
attribute lon_deg nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute lon_deg standard_name String longitude
attribute lon_deg units String degrees minutes
variable lon_min   float  
attribute lon_min _FillValue float NaN
attribute lon_min actual_range float 1.0, 59.71
attribute lon_min bcodmo_name String longitude
attribute lon_min colorBarMaximum double 180.0
attribute lon_min colorBarMinimum double -180.0
attribute lon_min description String Longitude; minutes
attribute lon_min long_name String Longitude
attribute lon_min nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute lon_min standard_name String longitude
attribute lon_min units String degrees minutes
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -65.02, -55.97
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 in decimal degrees
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 biogeographic_zone   String  
attribute biogeographic_zone bcodmo_name String site_descrip
attribute biogeographic_zone description String Code for the biogeographic zone in which sampling took place: SAZ=Subantarctic Zone; PFZ=Polar Frontal Zone; AZ=Antarctic Zone; ACZ=Antarctic Coastal (Continental) Zone
attribute biogeographic_zone long_name String Biogeographic Zone
attribute biogeographic_zone units String unitless
variable DIEL   String  
attribute DIEL bcodmo_name String diel
attribute DIEL description String Indicates day night or twiglight sample collection on net deployment 1 hour before and after local sunrise and sunset.
attribute DIEL long_name String DIEL
attribute DIEL units String unitless
variable volume_filtered   float  
attribute volume_filtered _FillValue float NaN
attribute volume_filtered actual_range float 2746.3, 11890.2
attribute volume_filtered bcodmo_name String vol_filt
attribute volume_filtered description String Volume of water filtered through the net
attribute volume_filtered long_name String Volume Filtered
attribute volume_filtered units String meters cubed
variable SST   float  
attribute SST _FillValue float NaN
attribute SST actual_range float -1.65, 7.55
attribute SST bcodmo_name String temp_ss
attribute SST description String Sea surface temperature
attribute SST long_name String Sea Surface Temperature
attribute SST units String celsius
variable bottom_depth   short  
attribute bottom_depth _FillValue short 32767
attribute bottom_depth actual_range short 130, 4873
attribute bottom_depth bcodmo_name String depth_bottom
attribute bottom_depth description String Bottom depth at sampling location
attribute bottom_depth long_name String Bottom Depth
attribute bottom_depth units String meters
variable wind_speed   float  
attribute wind_speed _FillValue float NaN
attribute wind_speed actual_range float 3.0, 36.0
attribute wind_speed bcodmo_name String wind_speed
attribute wind_speed colorBarMaximum double 15.0
attribute wind_speed colorBarMinimum double 0.0
attribute wind_speed description String Wind speed at time of sampling
attribute wind_speed long_name String Wind Speed
attribute wind_speed units String knots
variable wind_direction   float  
attribute wind_direction _FillValue float NaN
attribute wind_direction actual_range float 0.18, 355.0
attribute wind_direction bcodmo_name String wind_dir
attribute wind_direction colorBarMaximum double 360.0
attribute wind_direction colorBarMinimum double 0.0
attribute wind_direction description String Wind direction at time of sampling
attribute wind_direction long_name String Wind From Direction
attribute wind_direction units String degrees
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 50.0, 180.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String The depth at which the net tow took plac
attribute depth ioos_category String Location
attribute depth long_name String Tow 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 underwater_video   String  
attribute underwater_video bcodmo_name String unknown
attribute underwater_video description String Indicates whether videorecordings were made at each station and if so to what depths.
attribute underwater_video long_name String Underwater Video
attribute underwater_video units String unitless
variable notes   String  
attribute notes bcodmo_name String comment
attribute notes description String Notes and observations
attribute notes long_name String Notes
attribute notes units String unitless

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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