BCO-DMO ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Because the samples are initially processed on deck and radiocarbon is being\nmeasured, the engines of the R/V Blue Heron are shut down during this time\nallowing the vessel to drift (engines not going and thus less possibility for\ncontamination from the stack), until the processing of the samples has been\ncompleted.\n \nRelated files and references:  \n Sampling procedures, instrumentation, discussion of blanks, etc, included in\nZigah, P.K., E.C. Minor, J.P. Werne, and S. L. McCallister, 2011. Radiocarbon\nand stable carbon isotopic insights into provenance and cycling of carbon in\nLake Superior. Limnology and Oceanography 56(3), 867-886.\n \nIsotopic data were processed as described in Radiocarbon Data & Calculations:\n[https://www.whoi.edu/nosams/page.do?pid=40146](\\\\\"https://www.whoi.edu/nosams/page.do?pid=40146\\\\\")\n \nConcentration data for DOC and DIC are from a Shimadzu TOC-Vcsh Analyzer.\n \nFor DIC, the analyzer was calibrated using primary standard grade sodium\ncarbonate and ACS reagent grade sodium bicarbonate. The inorganic carbon in\nthe sample was volatilized with 25% H3PO4 (by weight) in a CO2-free closed\nreaction vessel, and the CO2 evolved was measured by a non-dispersive infrared\n(NDIR) gas detector.\n \nFor DOC, the samples were acidified to pH 2 with ACS reagent grade HCl at the\ntime of sampling. The TOC analyzer was run in NPOC mode and calibrated with\npotassium hydrogen phthalate (KHP). Deep seawater from Florida Strait at 700 m\n(Batch-8 2008) reference waters obtained from the DOC Consensus Reference\nProgram (Hansell laboratory, University of Miami, USA) and additional KHP\nstandards were interspersed and analyzed along with the samples to assess\ninstrumental performance.\n \nOur mean DOC value of the external reference sample was 43.9 \\u00b1 3.9\n\\u03bcM (n = 5), and agrees with the consensus value of 41-43 \\u03bcM. For\neach sample and standard, three injections were performed. If the standard\ndeviation was not \\u2264 2.5%, two more injections were performed and the\nclosest three of the five injections were averaged to yield sample\nconcentration.\n \nParticulate organic samples (on GF/F filters) were fumigated with HCl, dried,\nthen loaded into tin capsules and analyzed for particulate organic carbon\n(POC) and particulate organic nitrogen (PON) concentrations using a Costech\nECS 4010 elemental analyzer (EA) coupled to Finnigan Delta Plus XP isotope\nratio mass spectrometer (IRMS). The EA was calibrated with acetanilide\n(Costech Analytical Technologies Inc., Valencia, CA, USA) and caffeine\n(SigmalUltra; Wheaton Science Products, NJ, USA) reference standard materials;\nC and N were quantified using the IRMS. Typical instrumental precisions for\nPOC and PON measurements were respectively, 0.2% and 0.4% of the measured\nconcentrations.
attribute NC_GLOBAL awards_0_award_nid String 54787
attribute NC_GLOBAL awards_0_award_number String OCE-0825600
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0825600 (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 Donald L. Rice
attribute NC_GLOBAL awards_0_program_manager_nid String 51467
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Version: 19 July 2013 \n  PIs: Minor, Werne \n  August/2010 Radiocarbon Data
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 2013-04-23T18:57:01Z
attribute NC_GLOBAL date_modified String 2019-10-31T16:11:25Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3920.1
attribute NC_GLOBAL geospatial_lat_max double 48.027
attribute NC_GLOBAL geospatial_lat_min double 46.836
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/3920 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Costech ECS 4010 elemental analyzer (EA)\nFinnigan Delta Plus XP isotope ratio mass spectrometer (IRMS)\nParticulate organic samples (on GF/F filters) were fumigated with   HCl, dried, then loaded into tin capsules and analyzed for particulate   organic carbon (POC) and particulate organic nitrogen (PON)   concentrations using a Costech ECS 4010 elemental analyzer (EA) coupled   to Finnigan Delta Plus XP isotope ratio mass spectrometer (IRMS). The  EA  was calibrated with acetanilide (Costech Analytical Technologies  Inc.,  Valencia, CA, USA) and caffeine (SigmalUltra; Wheaton Science  Products,  NJ, USA) reference standard materials; C and N were  quantified using the  IRMS. Typical instrumental precisions for POC and  PON measurements were  respectively, 0.2% and 0.4% of the measured  concentrations.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 6149
attribute NC_GLOBAL instruments_0_description String The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_0_instrument_nid String 469
attribute NC_GLOBAL instruments_0_supplied_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_1_acronym String Shimadzu TOC-V
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Concentration data for DOC and DIC are from a Shimadzu TOC-Vcsh Analyzer.
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 6151
attribute NC_GLOBAL instruments_1_description String A Shimadzu TOC-V Analyzer measures DOC by high temperature combustion method.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String http://onto.nerc.ac.uk/CAST/124 (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Shimadzu TOC-V Analyzer
attribute NC_GLOBAL instruments_1_instrument_nid String 603
attribute NC_GLOBAL instruments_1_supplied_name String Shimadzu TOC-V Analyzer
attribute NC_GLOBAL instruments_2_acronym String CHN_EA
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Costech ECS 4010 elemental analyzer (EA)\nFinnigan Delta Plus XP isotope ratio mass spectrometer (IRMS)\nParticulate organic samples (on GF/F filters) were fumigated with   HCl, dried, then loaded into tin capsules and analyzed for particulate   organic carbon (POC) and particulate organic nitrogen (PON)   concentrations using a Costech ECS 4010 elemental analyzer (EA) coupled   to Finnigan Delta Plus XP isotope ratio mass spectrometer (IRMS). The  EA  was calibrated with acetanilide (Costech Analytical Technologies  Inc.,  Valencia, CA, USA) and caffeine (SigmalUltra; Wheaton Science  Products,  NJ, USA) reference standard materials; C and N were  quantified using the  IRMS. Typical instrumental precisions for POC and  PON measurements were  respectively, 0.2% and 0.4% of the measured  concentrations.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 6150
attribute NC_GLOBAL instruments_2_description String A CHN Elemental Analyzer is used for the determination of carbon, hydrogen, and  nitrogen content in organic and other types of materials, including  solids, liquids, volatile, and viscous samples.
attribute NC_GLOBAL instruments_2_instrument_name String CHN Elemental Analyzer
attribute NC_GLOBAL instruments_2_instrument_nid String 625
attribute NC_GLOBAL instruments_2_supplied_name String CHN Elemental Analyzer
attribute NC_GLOBAL keywords String accession, Accession_Number, age, Age_Error, bco, bco-dmo, biological, chemical, commerce, conc, cruise, cruise_id, d13, d13C, d13C_Source, d14, D14C, data, dataset, date, Date_Reported, department, dic, DIC_Conc, dmo, doc, DOC_Conc, erddap, error, F_Modern, Fm_Error, identification, latitude, longitude, management, modern, number, oceanography, office, preliminary, process, receipt, Receipt_Number, reported, source, station, station_id, submitter, Submitter_Identification, type
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/3920/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3920 (external link)
attribute NC_GLOBAL Northernmost_Northing double 48.027
attribute NC_GLOBAL param_mapping String {'3920': {'lat': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3920/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Minnesota Duluth
attribute NC_GLOBAL people_0_affiliation_acronym String LLO-UMD
attribute NC_GLOBAL people_0_person_name String Elizabeth C. Minor
attribute NC_GLOBAL people_0_person_nid String 51349
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 Minnesota Duluth
attribute NC_GLOBAL people_1_affiliation_acronym String LLO-UMD
attribute NC_GLOBAL people_1_person_name String Josef P. Werne
attribute NC_GLOBAL people_1_person_nid String 51350
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 University of Minnesota Duluth
attribute NC_GLOBAL people_2_affiliation_acronym String LLO-UMD
attribute NC_GLOBAL people_2_person_name String Elizabeth C. Minor
attribute NC_GLOBAL people_2_person_nid String 51349
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 Stephen R. Gegg
attribute NC_GLOBAL people_3_person_nid String 50910
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 Lake Superior Radiocarbon
attribute NC_GLOBAL projects_0_acronym String Lake Superior Radiocarbon
attribute NC_GLOBAL projects_0_description String Organic carbon present in aquatic ecosystems has the potential to either be sequestered by sedimentary organic matter or recycled and contributed to the atmosphere through microbial respiration. Ultimately, the fate of organic matter is dependant upon its source, as well as the physical transport mechanisms and biogeochemical transformations it is exposed to in the water column. Because these processes vary significantly within aquatic systems, such as the ocean, it is difficult to assess the biogeochemical importance of organic carbon; however, it is a problem of critical importance whose results could be utilized to resolve key issues in global biogeochemical carbon cycles and to determine the net heterotrophy of most aquatic environments.\nScientists from the University of Minnesota-Duluth and Virginia Commonwealth University would address this problem by studying organic carbon dynamics in Lake Superior because its biogeochemistry is similar to that of the world ocean. Using Lake Superior as a natural laboratory, the researchers plan to carry out radiocarbon measurements of particulate organic carbon (POC), dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and bacterially-respired CO2, as well as obtain the chemical composition of DOC and POC during stratified and non-stratified periods. Results would be used to identify the sources of carbon in the lake and determined transformations of carbon between POC, DOC, DIC, and bacterially-respired CO2.\nEducational impacts include workshops and presentation for K-12 audiences as well as research and training opportunities for graduate and undergraduate students in Water Resources Science and Biochemistry classes.\nCruise pictures and info (for a general audience)
attribute NC_GLOBAL projects_0_end_date String 2011-08
attribute NC_GLOBAL projects_0_geolocation String Lake Superior
attribute NC_GLOBAL projects_0_name String How important is quote old unquote Carbon in Lake Superior.  A Radiocarbon Investigation
attribute NC_GLOBAL projects_0_project_nid String 2156
attribute NC_GLOBAL projects_0_start_date String 2008-09
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 46.836
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String cruise_id
attribute NC_GLOBAL summary String Radiocarbon data from R/V Blue Heron cruise BH10-14 on Lake Superior in August 2010.
attribute NC_GLOBAL title String [Sup_Aug-10-carbon] - Radiocarbon data from R/V Blue Heron cruise BH10-14 on Lake Superior in August 2010 (Lake Superior Radiocarbon project) (How important is quote old unquote Carbon in Lake Superior.  A Radiocarbon Investigation)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable cruise_id String
attribute cruise_id bcodmo_name String cruise_id
attribute cruise_id description String Cruise Id
attribute cruise_id long_name String Cruise Id
attribute cruise_id units String text
variable Receipt_Number int
attribute Receipt_Number _FillValue int 2147483647
attribute Receipt_Number actual_range int 83041, 83890
attribute Receipt_Number bcodmo_name String unknown
attribute Receipt_Number colorBarMaximum double 100.0
attribute Receipt_Number colorBarMinimum double 0.0
attribute Receipt_Number description String Receipt Number
attribute Receipt_Number long_name String Receipt Number
attribute Receipt_Number units String dimensionless
variable Date_Reported int
attribute Date_Reported _FillValue int 2147483647
attribute Date_Reported actual_range int 20101210, 20110502
attribute Date_Reported bcodmo_name String date
attribute Date_Reported description String Date the samples were analyzed at NOSAMS in yyyymmdd format.
attribute Date_Reported long_name String Date Reported
attribute Date_Reported nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute Date_Reported units String unitless
variable station_id String
attribute station_id bcodmo_name String station
attribute station_id description String Station Id
attribute station_id long_name String Station Id
attribute station_id units String text
variable latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 46.836, 48.027
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 (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 lon float
attribute lon _FillValue float NaN
attribute lon actual_range float -92.0054, -86.63017
attribute lon bcodmo_name String longitude
attribute lon colorBarMaximum double 180.0
attribute lon colorBarMinimum double -180.0
attribute lon description String Longitude (West is negative)
attribute lon long_name String Longitude
attribute lon nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute lon standard_name String longitude
attribute lon units String decimal degrees
variable Submitter_Identification String
attribute Submitter_Identification bcodmo_name String unknown
attribute Submitter_Identification description String Submitter IdentificationComments from original sheet:\nComment 1: HMW DOM are 1kDa material\nComment 2: DOCW means
attribute Submitter_Identification long_name String Submitter Identification
attribute Submitter_Identification units String text
variable Type String
attribute Type bcodmo_name String unknown
attribute Type description String Type
attribute Type long_name String Type
attribute Type units String text
variable Process String
attribute Process bcodmo_name String unknown
attribute Process description String Process type
attribute Process long_name String Process
attribute Process units String text
variable Accession_Number String
attribute Accession_Number bcodmo_name String accession number
attribute Accession_Number description String Accession Number
attribute Accession_Number long_name String Accession Number
attribute Accession_Number units String OS-xxxxx
variable F_Modern float
attribute F_Modern _FillValue float NaN
attribute F_Modern actual_range float 0.2646, 1.077
attribute F_Modern bcodmo_name String unknown
attribute F_Modern description String fraction modern
attribute F_Modern long_name String F Modern
attribute F_Modern units String Unitless
variable Fm_Error float
attribute Fm_Error _FillValue float NaN
attribute Fm_Error actual_range float 0.0019, 0.0144
attribute Fm_Error bcodmo_name String unknown
attribute Fm_Error colorBarMaximum double 50.0
attribute Fm_Error colorBarMinimum double 0.0
attribute Fm_Error description String the error in fraction modern (as determined by NOSAMS)
attribute Fm_Error long_name String Fm Error
attribute Fm_Error units String Unitless
variable Age short
attribute Age _FillValue short 32767
attribute Age actual_range short 5, 10700
attribute Age bcodmo_name String unknown
attribute Age description String Age
attribute Age long_name String Age
attribute Age units String Radiocarbon years
variable Age_Error short
attribute Age_Error _FillValue short 32767
attribute Age_Error actual_range short 25, 420
attribute Age_Error bcodmo_name String unknown
attribute Age_Error colorBarMaximum double 50.0
attribute Age_Error colorBarMinimum double 0.0
attribute Age_Error description String Age Error
attribute Age_Error long_name String Age Error
attribute Age_Error units String Radiocarbon years
variable d13C float
attribute d13C _FillValue float NaN
attribute d13C actual_range float -30.39, 1.52
attribute d13C bcodmo_name String unknown
attribute d13C description String delta13C
attribute d13C long_name String D13 C
attribute d13C units String per mille
variable d13C_Source String
attribute d13C_Source bcodmo_name String unknown
attribute d13C_Source description String delta13C Source
attribute d13C_Source long_name String D13 C Source
attribute d13C_Source units String text
variable D14C float
attribute D14C _FillValue float NaN
attribute D14C actual_range float -737.31, 69.25
attribute D14C bcodmo_name String unknown
attribute D14C description String DELTA14C
attribute D14C long_name String D14 C
attribute D14C units String per mille
variable DIC_Conc float
attribute DIC_Conc _FillValue float NaN
attribute DIC_Conc actual_range float 0.62, 1.9
attribute DIC_Conc bcodmo_name String unknown
attribute DIC_Conc description String DIC Conc
attribute DIC_Conc long_name String DIC Conc
attribute DIC_Conc units String mmol/kg
variable DOC_Conc float
attribute DOC_Conc _FillValue float NaN
attribute DOC_Conc actual_range float 8.55, 887.24
attribute DOC_Conc bcodmo_name String unknown
attribute DOC_Conc description String DOC Conc
attribute DOC_Conc long_name String DOC Conc
attribute DOC_Conc units String um/kg

 
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