Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MARTHA L. BLACK in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2012-06-01 to 2012-06-17 (NCEI Accession 0144337)

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NCEI Accession 0144337 includes discrete sample and profile data collected from MARTHA L. BLACK in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2012-06-01 to 2012-06-17. These data include AMMONIUM (NH4), CHLOROFLUOROCARBON-12 (CFC-12), DISSOLVED INORGANIC CARBON (DIC), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, SALINITY, SULFUR HEXAFLUORIDE (SF6), TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement and bottle.

These data were collected by Igor Yashayaev and Kumiko Azetsu-Scott of Bedford Institute of Oceanography as part of the CLIVAR_AR07W_2012 data set. CDIAC associated the following cruise ID(s) with this data set: MLB2012001

The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

The World Ocean Circulation Experiment (WOCE) was a major component of the World Climate Research Program with the overall goal of better understanding the ocean's role in climate and climatic changes resulting from both natural and anthropogenic causes. The CO2 survey took advantage of the sampling opportunities provided by the WOCE Hydrographic Program (WHP) cruises during this period between 1990 and 1998. The final collection covers approximately 23,000 stations from 94 WOCE cruises.
  • Cite as: Azetsu-Scott, Kumiko; Yashayaev, Igor (2016). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MARTHA L. BLACK in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2012-06-01 to 2012-06-17 (NCEI Accession 0144337). Version 1.1. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_AR07W_2012 [access date]
gov.noaa.nodc:0144337
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Ordering Instructions Data may be searched and downloaded using online services provided by NCEI using the online resource URLs in this record. Contact NCEI Information Services for custom orders. When requesting data from NCEI, the desired data set may be referred to by the unique package identification number listed in this metadata record.
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2012-06-01 to 2012-06-17
Spatial Bounding Box Coordinates
N: 60.5942
S: 44.2668
E: -48.228
W: -63.3142
Spatial Coverage Map
General Documentation
  • Project Metadata
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  • Dataset Description
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  • Descriptive Information
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Associated Resources
  • Ocean CO2
    • Ocean CO2
      CDIAC Ocean Carbon Dioxide web page
  • Carbon dioxide, hydrographic, and chemical data obtained during the CCGS Martha L. Black cruise in the North Atlantic Ocean on CLIVAR Repeat Section AR07W_2012 (01 - 17 June, 2012).
Publication Dates
  • publication: 2016-02-26
Edition 1.1
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Supplemental Information
These data were acquired by NCEI from the Carbon Dioxide Information Analysis Center (CDIAC) in accordance with an archival submission agreement between CDIAC and NCEI.

The data provider requests citing these data as described in the Cross Reference Citation at: http://accession.nodc.noaa.gov/0144337

NCEI cannot verify the accuracy or availability of the data provider's citation information, which is maintained by the Carbon Dioxide Information Analysis Center (CDIAC).
Purpose Basic research
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Azetsu-Scott, Kumiko; Yashayaev, Igor (2016). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MARTHA L. BLACK in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2012-06-01 to 2012-06-17 (NCEI Accession 0144337). Version 1.1. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_AR07W_2012 [access date]
Cited Authors
  • Azetsu-Scott, Kumiko
  • Yashayaev, Igor
Principal Investigators
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Cruise ID
  • MLB2012001
EXPOCODE
  • MLB2012001
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
  • EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Originator Variable Names
  • ALKALI
  • ALKALI_FLAG_W
  • BTLNBR
  • BTLNBR_FLAG_W
  • BTL_DATE
  • BTL_TIME
  • CASTNO
  • CFC-12
  • CFC-12_FLAG_W
  • CTDOXY
  • CTDOXY_FLAG_W
  • CTDPRS
  • CTDSAL
  • CTDSAL_FLAG_W
  • CTDTMP
  • DATE
  • DEPTH
  • EXPOCODE
  • LATITUDE
  • LONGITUDE
  • NH4
  • NH4_FLAG_W
  • NITRAT
  • NITRAT_FLAG_W
  • NITRIT
  • NITRIT_FLAG_W
  • OXYGEN
  • OXYGEN_FLAG_W
  • PHSPHT
  • PHSPHT_FLAG_W
  • PH_TMP
  • PH_TOT
  • PH_TOT_FLAG_W
  • SALNTY
  • SALNTY_FLAG_W
  • SAMPNO
  • SECT_ID
  • SF6
  • SF6_FLAG_W
  • SILCAT
  • SILCAT_FLAG_W
  • STNNBR
  • TCARBN
  • TCARBN_FLAG_W
  • TIME
Provider Variable Names
  • ALKALI
  • CFC-12
  • CTDOXY
  • CTDSAL
  • CTDTMP
  • DIC
  • NH4
  • NITRAT
  • NITRIT
  • OXYGEN
  • PHSPHT
  • PH_TMP
  • PH_TOT
  • SALNTY
  • SF6
  • SILCAT
  • TCARBN
  • pH
Reference Section ID
  • AR07W
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • COULOMETERS
  • CTD > Conductivity, Temperature, Depth
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT
Provider Geographic Names
  • Atlantic Ocean
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
  • CLIVAR > Climate Variability
Ocean Acidification Search Keywords
  • Ocean Carbon Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Azetsu-Scott, Kumiko; Yashayaev, Igor (2016). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MARTHA L. BLACK in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2012-06-01 to 2012-06-17 (NCEI Accession 0144337). Version 1.1. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_AR07W_2012 [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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Lineage information for: dataset
Processing Steps
  • 2016-02-26T19:18:08 - NCEI Accession 0144337 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Observation type: discrete; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Calculated; Detailed sampling and analyzing information: Total inorganic carbon (TIC) and total alkalinity (TA) were not measured during the 2012 Labrador Sea Mission because of laboratory space constraints on the CCGS Martha L Black. Instead, water samples for combined TIC and TA analysis were collected in 500 mL borosilicate glass reagent bottles and preserved by the addition of 100 μL of saturated mercuric chloride solution. A 5 mL headspace was created in each sample before sealing the bottles with greased glass stoppers held in place with rubber bands. The samples were transported back to BIO for analysis.; Standardization description: Around 470 water samples for TIC and TA analysis were collected from stations 1 – 28 on the AR07W line with the exclusion of Station 26. The sample identification numbers fell in the range 380025 to 380621..
  • Parameter or Variable: pH; Abbreviation: pH; pH scale: Total Scale; Observation type: discrete; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Detailed sampling and analyzing information: Water samples were collected and analysed for pH in 2012 on board the CCGS Martha L Black by Melissa Wartman. Two significant changes were made to the pH sampling protocol for the 2012 Labrador Sea Mission. First, 60 mL borosilicate glass tubes with screw caps were used to collect seawater samples rather than the amber Boston Round soda lime glass bottles used in previous missions as there is evidence to suggest that seawater pH is not stable in samples that are stored in soda lime glass. Second, the samples were analysed fresh or stored for a maximum of around 12 hours before analysis. Mercuric chloride was not used to poison the samples this year as further experiments are required to establish whether the addition of mercuric chloride can affect the pH of seawater. The spectrophotometric analytical method is described in “Guide to best practises for ocean CO2 measurements” SOP 6B, edited by Andrew Dickson. Briefly, racks of tubes containing seawater samples are placed in a water bath for around 30 minutes to bring the samples to 25 °C. A sample is then introduced into a water-jacketed 10 cm quartz cell and 30 μL of the indicator dye m-cresol purple is added before mixing well. The absorbance of light at the wavelengths 434 and 578 nm is measured with an Agilent photodiode array spectrophotometer and the resulting extinction coefficients at these wavelengths are used to determine the pH of the sample. The sample absorption spectra are referenced to measurements of a Certified Reference Material obtained from Scripps University and consisting of TRIS buffer in synthetic seawater with a known pH accurate to four decimal places. The analytical precision was 0.07% as determined by multiple measurements of seawater drawn from 14 Niskin bottles fired at the same depth..
  • Parameter or Variable: CTDTMP; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDSAL; Abbreviation: CTDSAL; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SALNTY; Abbreviation: SALNTY; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDOXY; Abbreviation: CTDOXY; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: OXYGEN; Abbreviation: OXYGEN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SILCAT; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NITRAT; Abbreviation: NITRAT; Unit: UMOL/KG; Controlled vocabulary name: NITRATE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NITRIT; Abbreviation: NITRIT; Unit: UMOL/KG; Controlled vocabulary name: NITRITE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: PHSPHT; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NH4; Abbreviation: NH4; Unit: UMOL/KG; Controlled vocabulary name: AMMONIUM (NH4); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CFC-12; Abbreviation: CFC-12; Unit: PMOL/KG; Controlled vocabulary name: CHLOROFLUOROCARBON-12 (CFC-12); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SF6; Abbreviation: SF6; Unit: FMOL/KG; Controlled vocabulary name: Sulfur Hexaflouride (SF6); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: TCARBN; Abbreviation: TCARBN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: ALKALI; Abbreviation: ALKALI; Unit: UMOL/KG; Controlled vocabulary name: total alkalinity; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: PH_TOT; Abbreviation: PH_TOT; Unit: @25C; Controlled vocabulary name: pH; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: PH_TMP; Abbreviation: PH_TMP; Unit: DEG_C; Controlled vocabulary name: pH; In-situ / Manipulation / Response variable: in-situ.
Acquisition Information (collection)
Instrument
  • bottle
  • Coulometer for DIC measurement
  • CTD
  • titrator
Platform
  • MARTHA L. BLACK
Last Modified: 2018-05-16T02:22:26
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