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Title Sum-
Institution Dataset ID
     data   graph     files  public Cruise track position data from cruises MV1101 and RR1202 (Great Calcite Belt project)    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_473241

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 Generated by BCO-DMO staff from R2R Archive files

File Creation Date for MV1101 from R2R Header: // Creation date:

File Creation Date for RR1202 from R2R Header: // Creation date:
attribute NC_GLOBAL awards_0_award_nid String 473207
attribute NC_GLOBAL awards_0_award_number String OCE-0961660
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0961660&HistoricalAwards=false (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 David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Version: 19 December 2013
PIs: Balch, et al
Cruise Tracks from R2R Archive - 1 minute fixes
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 2013-12-19T16:16:21Z
attribute NC_GLOBAL date_modified String 2019-11-20T19:07:17Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.473241.1
attribute NC_GLOBAL Easternmost_Easting double 115.765233
attribute NC_GLOBAL geospatial_lat_max double -29.842043
attribute NC_GLOBAL geospatial_lat_min double -60.019873
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 115.765233
attribute NC_GLOBAL geospatial_lon_min double -70.906657
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/473241 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String GPS
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 473264
attribute NC_GLOBAL instruments_0_description String The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The U.S. Air Force develops, maintains, and operates the space and control segments of the NAVSTAR GPS transmitter system. Ships use a variety of receivers (e.g. Trimble and Ashtech) to interpret the GPS signal and determine accurate latitude and longitude.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/POS03/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Global Positioning System Receiver
attribute NC_GLOBAL instruments_0_instrument_nid String 560
attribute NC_GLOBAL instruments_0_supplied_name String GPS
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, COG, course, cruise, CruiseId, data, dataset, date, dmo, erddap, ground, iso, latitude, longitude, management, oceanography, office, over, preliminary, SOG, speed, time
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/473241/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/473241 (external link)
attribute NC_GLOBAL Northernmost_Northing double -29.842043
attribute NC_GLOBAL param_mapping String {'473241': {'Latitude': 'flag - latitude', 'Longitude': 'flag - longitude', 'ISO_DateTime_UTC': 'flag - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/473241/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_0_person_name String William M. Balch
attribute NC_GLOBAL people_0_person_nid String 50650
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 Bigelow Laboratory for Ocean Sciences
attribute NC_GLOBAL people_1_person_name String William M. Balch
attribute NC_GLOBAL people_1_person_nid String 50650
attribute NC_GLOBAL people_1_role String Contact
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Stephen R. Gegg
attribute NC_GLOBAL people_2_person_nid String 50910
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String Great Calcite Belt
attribute NC_GLOBAL projects_0_acronym String Great Calcite Belt
attribute NC_GLOBAL projects_0_description String Collaborative Research: The Great Southern Coccolithophore Belt
Intellectual merit: Recent advances in satellite remote sensing enable estimation of suspended calcium carbonate (particulate inorganic carbon or 'PIC') from space. This radiative approach is operationally specific to marine coccolithophores (Haptophyceae) and sensitive enough to quantify PIC concentrations in oligotrophic gyres. Global images of suspended PIC taken over the seven years of the MODIS Aqua mission show a 'Great Belt' of PIC near the sub-Antarctic front of the Southern Ocean that circles the globe. This feature occurs every year during austral summer and appears to be within the high-nutrient, low chlorophyll region of the Southern Ocean. The area of the Great Belt is ~88 million km2, 26% of the global ocean. Evidence from several cruises into the Great Belt region of the Atlantic, Indian and Pacific sectors has verified elevated concentrations of coccolithophores; previous work in the Atlantic sector verified high optical scattering from PIC. The few ship observations we have are entirely consistent with the satellite views. In this project, the investigators will systematically study the coccolithophores of the Great Belt guided by the following science goals: (a) identify the coccolithophore species within this belt; (b) measure the abundance of coccolithophores and associated PIC; (c) measure coccolithopore calcification rates; (d) elucidate factors that may limit coccolithophore latitudinal range (e.g. stratification, temperature, macronutrients, trace metals, grazing); (e) demonstrate whether the variability in PIC relates to shallow export flux; (f) define how variability in PIC production relates to the pCO2, total alkalinity and dissolved inorganic carbon budgets; and (g) examine the impact of short-term ocean acidification on coccolithophore growth and calcite dissolution.
The research will involve cruises along the 50 S parallel to sample the Great Belt, during the austral summer. The investigators will use a combination of underway surface sampling (primarily optical and hydrographic) and vertical station profiles (using CTD/rosette and large volume submersible pumps) to address hypotheses related to the above goals. The cruise track will elucidate both zonal and meridional variability in the Great Belt. Controlled carboy incubation experiments will examine the impact of ocean acidification at various future scenarios on coccolithophore growth and dissolution. Dilution experiments will address grazing-related mortality and dissolution questions. Controlled metal-addition incubations will focus on potential iron, zinc and cobalt limitation of the coccolithophores or competition from diatoms related to silica availability. The proposed field observations and metal-addition experiments will provide important information on the current status of the Great Belt in the context of global biogeochemistry. The ocean acidification experiments to be undertaken are more forward-looking in terms of the fate of the Southern Ocean coccolithophores in a future acidified ocean.
Broader impacts: The globally significant size of the Great Belt indicates that it likely plays a major role in global biogeochemistry and climate change feedbacks. Thus, the investigators expect this work to have broad, transformative impacts in biological and chemical oceanography. Ocean acidification from the burning of fossil fuels is predicted to lower the pH of the surface ocean by 0.3 units in the next century and up to 0.7 units - a 5-fold increase in the proton concentration by the year 2300. A major goal of this study is to examine the effects of ocean acidification on coccolithophores in a region of low calcite saturation (i.e., one of the first regions expected to become sub-saturating for calcite). The results of these experiments will therefore be highly relevant to our basic understanding of the marine carbon cycle. Related to career development and Criterion II activities, the project includes field experience on two cruises for NSF REU undergraduates from Maine universities or colleges, providing funds for them to attend a scientific meeting. Participation of undergraduate students from Maine colleges builds capacity in our rural coastal state and helps thwart the serious issue of 'brain drain', in which the best students are leaving Maine to seek opportunity in wealthier, more populated states. A teacher will also participate on the cruises (via the NSF-sponsored ARMADA program). This teacher will develop learning modules for students about such topics as coccolithophores, calcification, export production, metal-plankton interactions, ocean acidification and climate change.
Balch, WM; Drapeau, DT; Bowler, BC; Lyczskowski, E; Booth, ES; Alley, D. "The contribution of coccolithophores to the optical and inorganic carbon budgets during the Southern Ocean Gas Exchange Experiment: New evidence in support of the "Great Calcite Belt" hypothesis," JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, v.116, 2011. View record at Web of Science
Poulton, AJ; Young, JR; Bates, NR; Balch, WM. "Biometry of detached Emiliania huxleyi coccoliths along the Patagonian Shelf," MARINE ECOLOGY-PROGRESS SERIES, v.443, 2011, p. 1. View record at Web of Science
Brown, Michael S, W. Balch, S. Craig, B. Bowler, D. Drapeau, J. Grant. "Optical closure within a Patagonian Shelf coccolithhophore bloom", 06/01/2011-05/31/2012,  2012, "ACCESS'12. Atlantic Canada Coastal & Estuarine Science Society. Dalhousie University, Halifax, Nova Scotia. 10-13 May, 2012.".
attribute NC_GLOBAL projects_0_end_date String 2014-05
attribute NC_GLOBAL projects_0_geolocation String Southern Ocean. 60W to 120E; 30S to 60S;
attribute NC_GLOBAL projects_0_name String The Great Southern Coccolithophore Belt
attribute NC_GLOBAL projects_0_project_nid String 473206
attribute NC_GLOBAL projects_0_project_website String http://greatbeltresearchcruise.com/gbr11/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2010-06
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 -60.019873
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Cruise track position data from cruises MV1101 and RR1202.
attribute NC_GLOBAL time_coverage_end String 2012-03-22T23:38:00Z
attribute NC_GLOBAL time_coverage_start String 2011-01-11T00:00:01Z
attribute NC_GLOBAL title String Cruise track position data from cruises MV1101 and RR1202 (Great Calcite Belt project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -70.906657
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable CruiseId   String  
attribute CruiseId bcodmo_name String cruiseid
attribute CruiseId description String Official UNOLS cruise id
attribute CruiseId long_name String Cruise Id
attribute CruiseId units String text
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.294704001E9, 1.33245948E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String ISO formatted UTC Date and Time
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 latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -60.019873, -29.842043
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 Position (South is negative)
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 -70.906657, 115.765233
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 Position (West is negative)
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 SOG   float  
attribute SOG _FillValue float NaN
attribute SOG actual_range float 0.0, 24.3
attribute SOG bcodmo_name String sog
attribute SOG description String Instantaneous Speed-over-ground
attribute SOG long_name String Speed Over Ground
attribute SOG units String meters/sec
variable COG   float  
attribute COG _FillValue float NaN
attribute COG actual_range float 0.0, 359.643
attribute COG bcodmo_name String cog
attribute COG description String Instantaneous Course-over-ground [deg. clockwise from North]
attribute COG long_name String Course Over Ground
attribute COG units String decimal degrees

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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