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Biogeochemistry, transient tracers and oxygen isotopes from discrete samples and profile observations during the R/Vs Arni Fridriksson and the Bjarni Saemundsson seasonal cruises in the North Atlantic Ocean from 2002-02-15 to 2006-05-29 (NCEI Accession 0276771)


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            title:  Biogeochemistry, transient tracers and oxygen isotopes from discrete samples and profile observations during the R/Vs Arni Fridriksson and the Bjarni Saemundsson seasonal cruises in the North Atlantic Ocean from 2002-02-15 to 2006-05-29 (NCEI Accession 0276771)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/5270 Sólveig Rósa Ólafsdóttir
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                individualName:  Jón Ólafsson
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/2110 University of Iceland (HÍ)
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                individualName:  Magnus Danielsen
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        abstract:  This dataset includes temperature, salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, partial pressure of CO2-water, CFCs and the 18O/16O ratio collected from discrete samples and profile observations during the R/Vs Arni Fridriksson and Bjarni Saemundsson seasonal cruises in the North Atlantic Ocean from 2002-02-15 to 2006-05-29.
        purpose:  This dataset is available to the public for a wide variety of uses including scientific research and analysis.
        credit:  Funding Information: The measurement of CFCs on samples collected from the 2002–2006 Icelandic seasonal cruises was supported by Grant NA03OAR4320179 from the United States National Oceanic and Atmospheric Administration to the Cooperative Institute for Climate Applications and Research of The Earth Institute at Columbia University.
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/493 CHLOROFLUOROCARBON-11 (CFC-11)
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                    function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0276771 v1.1 was published.
                dateTime:
                  DateTime:  2023-02-25T06:56:54Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0276771 v1.1
                        date:  (CI_Date)
                            date: (inapplicable)
                            dateType:  (CI_DateTypeCode) publication
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            individualName: (inapplicable)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/archive/accession/0276771/1.1
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0276771 v1.1
                                    description:  published 2023-02-25T06:56:54Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: CTDTMP; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; Observation type: CTD; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Temperature in °C. Measured with a Sea-Bird SBE3 Oceanographic Temperature Sensor. Lower CTD to 10m, then raise back to surface, wait for pump to start, then begin downcast. Lowering speed as close to 1 m/s as possible. On upcast, stop rosette before fire bottle..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: SALNTY; Abbreviation: SALNTY; Controlled vocabulary name: SALINITY; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Salinity measured on discrete samples with a Guildline Autosal Salinometer 8400B. 200 mL coated borosilicate glass bottles with plastic insert. Stored at room temperature and analyzed in laboratory within a month from sampling..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: OXYGEN; Abbreviation: OXYGEN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: In-bottle Winkler titration. Second sample drawn from the Niskin. Temperature difference between lowest in situ temperature and ambient temperature on deck is 12°C at most. The upcast takes 30 minutes max and the water column has rather uniform temperature. Drawn temperature is not recorded. Samples are stored in a cool location and analyzed on board..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Silicate; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Measured on Chemlab three channel autoanalyzer. Samples are kept refrigerated if analyzed on ship within 24 hours. Otherwise, they are kept frozen upright and analyzed in the lab after allowing them to thaw in the dark. In spring and summer, samples from the surface layer (0-60m) are syringe filtered through 0.45 um Whatman filter to avoid turbidity blank effect. Calibration range within 0-15 umol/l, to match the concentration of the samples. Quasimeme test material used..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: NO2+NO3; Abbreviation: NO2+NO3; Unit: UMOL/KG; Controlled vocabulary name: NO2+NO3; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Measured on Chemlab three channel autoanalyzer. NITRAT is NO2+NO3. Samples are kept refrigerated if analyzed on ship within 24 hours. Otherwise, they are kept frozen upright and analyzed in the lab after allowing them to thaw in the dark. In spring and summer, samples from the surface layer (0-60m) are syringe filtered through 0.45 um Whatman filter to avoid turbidity blank effect. Calibration range within 0-20 umol/l, to match the concentration of the samples. Quasimeme test material used..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: PHSPHT; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Measured on Chemlab three channel autoanalyzer. Samples are kept refrigerated if analyzed on ship within 24 hours. Otherwise, they are kept frozen upright and analyzed in the lab after allowing them to thaw in the dark. In spring and summer, samples from the surface layer (0-60m) are syringe filtered through 0.45 um Whatman filter to avoid turbidity blank effect. Calibration range within 0-1.2 umol/l, to match the concentration of the samples. Quasimeme test material used..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: DISSOLVED INORGANIC CARBON (DIC); Abbreviation: TCARBN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC); Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Dissolved Inorganic Carbon in µmmol/kg. Measured on discrete samples by coulometry with a UIC Inc CM-5010 coulometer. Samples are drawn into borosilicate glass bottles and the stopper is sealed with grease. Samples are preserved with HgCl2 saturated, kept in the dark in a cool location and returned to the laboratory for coulometric determination. The system is calibrated by 99.998 % CO2 gas at known temperature and pressure with two stainless steel loops of known volumes..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: partial pressure of carbon dioxide - watery; Abbreviation: PCO2; Unit: UATM; Controlled vocabulary name: partial pressure of carbon dioxide - water; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Analyzed by gas chromatography with the flask equilibrator coupled to the GC. Samples are collected in 500 mL volumetric flasks with a screw cap. Samples are preserved with HgCl2 (0.4 ml) and analyzed ashore by equilibration at 4°C with a gas of known CO2 concentration followed by gas chromatography with a flame ionization detector..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: pCO2 temperature; Abbreviation: PCO2TMP; Unit: DEG_C; Controlled vocabulary name: pCO2 temperature; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Chlorofluorocarbon - 11, Chlorofluorocarbon - 113; Abbreviation: CFC-11, CFC113; Unit: PMOL/KG; Controlled vocabulary name: Chlorofluorocarbon - 11, Chlorofluorocarbon - 113; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Water samples were collected using Niskin bottles. CFC samples were collected in 60 cm3 glass ampoules using a method adapted from Busenberg and Plummer (1992). The ampoules were filled directly from the Niskin bottles using a stainless steel filling tee (Bulsiewicz et al., 1998) and flushed with at least 120 cc of the water prior to flame sealing under continuously flowing ultra-high purity nitrogen. These samples were returned to Lamont-Doherty Earth Observatory where they were measured for CFC-11, CFC-12, and CFC-113 within a few months of collection. The measurements were carried out using a purge and trap system interfaced to a gas chromatograph with an electron capture detector (Bullister and Weiss, 1988; Smethie et al., 2000). Measurement precision was the larger of 1% or 0.01 pmol/kg for CFC-11, 2.5% or 0.01 pmol/kg for CFC-12, and 0.03 pmol/kg for CFC-113. The concentrations are reported on the SIO 93 calibration scale. pCFC-11, pCFC-12 and pCFC-113 are the partial pressures of these gases in the atmosphere at the time the water parcel was at the surface, assuming equilibrium between the surface water and the atmosphere. It was calculated by dividing the concentration in the water by the solubility of the gas reported by Warner and Weiss (1985) for CFC-11 and CFC-12 and Bu and Warner (1995) for CFC-113..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: 18O/16O ratio; Abbreviation: 18O/16O ratio; Unit: Per mille; Controlled vocabulary name: 18O/16O ratio; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ; Detailed sampling and analyzing information: Water samples were collected using Niskin bottles. Samples for 18O were drawn into dark 60 ml glass bottles and screwed caps tightly sealed. Oxygen isotope measurements were carried out at the Institute of Earth Sciences University of Iceland. The oxygen isotope measurements were performed on the Finnigan MAT 251 Mass-spectrometer. The isotope data is expressed as: 18Osample = ((Rsample/Rstandard)-1)1000‰ where R is 18O/16O and the standard used is SMOW-Standard Mean Ocean Water (Craig, 1961). Oxygen is extracted from the water by equilibrating 5 ml of degassed water with a small amount of CO2 gas in a sealed tube for 3 h, in a shaking waterbath (Epstein and Mayeda, 1953). The measurements are subsequently corrected for the CO2 gas which also was used as a secondary reference standard. The accuracy of the measurements is 0.03‰. .
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  chromatograph
            type:  chromatograph
            description:  Gas, ion, liquid or other chromatograph
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  coulometer for DIC measurement
            type:  coulometer for DIC measurement
            description:  measures dissolved inorganic carbon (DIC) A known amount of seawater is dispensed into a stripping chamber where it is acidified and purged with an inert gas. The amount of CO2 in the resulting gas stream is determined by absorbing the CO2 in an absorbent. The pH of the solution is monitored by measuring the transmittance .
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD
            type:  CTD
            description:  Conductivity-Temperature-Depth probe
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  Niskin bottle
            type:  Niskin bottle
            description:  Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle?
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  nutrient autoanalyzer
            type:  nutrient autoanalyzer
            description:  Laboratory Instrument Nutrient Autoanalyzer is a generic term describing an automated flow-thru system used to conduct analyses of several different nutrients (nitrate, ammonium, orthophosphate, and silicate) simultaneously from a seawater sample. For example: SEAL AutoAnalyzer 3 HR Continuous Segmented Flow Analyzer
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  salinometer
            type:  salinometer
            description:  generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  temperature sensor
            type:  temperature sensor
            description:  A sensor used to measure temperature.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  titrator
            type:  titrator
            description:  titrator
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  ARNI FRIDRIKSSON
            description:  ICES request for the vessel ARNI FRIDRIKSSON from ICELAND. NOTE: Use 46AN for data collected 1967 through 2001-09-04 from ARNI FRIDRIKSSON from ICELAND with call sign TFJA. Use 46AS for data collected after 1999 from ARNI FRIDRIKSSON from ICELAND with call sign TFNA. Do not use 46FR for any data collected from ARNI FRIDRIKSSON from ICELAND. Name : ARNI FRIDRIKSSON Flag : ICELAND - IS (ISO Country Code) Call Sign : TFJA IMO : 6710358 Commissioned Date : 1967 Decommissioned Date : 2001-09-04 Built : 1967 Notes : Registration number 1055 Lloyds URL : http://www.seasearcher.com/lmiu/vessels/overview.htm?vesselID=344721 Multiple Hull Info 46FR - ARNI FRIDRIKSSON General Comments: The old Arni Fridriksson (IMO 6710358 ) was decommissioned (taken off the Icelandic register) 04-SEP-2001 after having been sold to the Faeroe Islands. Confirmed by NOAA on 2014-02-04.
            instrument: (missing)
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  BJARNI SAEMUNDSSON
            description:  Flag: Iceland Vessel Type: Research
            instrument: (missing)