gov.noaa.nodc:0144303 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-04-19T19:43:47Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 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 HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2013-05-07 to 2013-05-28 (NCEI Accession 0144303) 2016-02-25 publication 2016-02-25 creation International DOI Foundation (IDF) 10.3334/cdiac/otg.clivar_ar07w_2013 NOAA National Centers for Environmental Information gov.noaa.nodc:0144303 NCEI Archive Management System 0144303 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Alex Kozyr Cooperative Institute for Satellite Earth System Studies (CISESS) Alex.Kozyr@noaa.gov https://cisess.umd.edu/ HTTPS Cooperative Institute for Satellite Earth System Studies (CISESS) website Institution web page information resourceProvider Carbon Dioxide Information Analysis Center (CDIAC) resourceProvider Igor Yashayaev Bedford Institute of Oceanography (BIO) Igor.Yashayaev@dfo-mpo.gc.ca principalInvestigator Kumiko Azetsu-Scott Bedford Institute of Oceanography (BIO) Kumiko.Azetsu-Scott@dfo-mpo.gc.ca principalInvestigator Azetsu-Scott, Kumiko Bedford Institute of Oceanography (BIO) author Yashayaev, Igor Bedford Institute of Oceanography (BIO) author Bedford Institute of Oceanography (BIO) contributor tableDigital This dataset includes discrete sample and profile data collected from HUDSON in the Davis Strait, Gulf of St. Lawrence, Labrador Sea and North Atlantic Ocean from 2013-05-07 to 2013-05-28. 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 (BIO) as part of the CLIVAR_AR07W_2013 dataset. CDIAC associated the following cruise ID(s) with this dataset: CLIVAR_AR07W_2013 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. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0144303 Preview graphic PNG 0144303 NCEI ACCESSION NUMBER 2016-02-25 publication AMMONIUM (NH4) CHLOROFLUOROCARBON-12 (CFC-12) DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN HYDROSTATIC PRESSURE NITRATE NITRITE pH phosphate SALINITY silicate sulfur hexafluoride (SF6) total alkalinity WATER TEMPERATURE theme NODC DATA TYPES THESAURUS bottle coulometer for DIC measurement CTD titrator instrument NODC INSTRUMENT TYPES THESAURUS discrete sample profile theme NODC OBSERVATION TYPES THESAURUS HUDSON platform NODC PLATFORM NAMES THESAURUS Bedford Institute of Oceanography dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Carbon Dioxide Information Analysis Center dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Climate Variability and Predictability (CLIVAR) project NODC PROJECT NAMES THESAURUS Davis Strait Gulf of St. Lawrence Labrador Sea North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication CA/DFO/BIO > Bedford Institute of Oceanography, Fisheries and Oceans, Canada DOE/ORNL/ESD/CDIAC > Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian CLIVAR_AR07W_2013 project Cruise ID 18HU20130507 project EXPOCODE CLIVAR > Climate Variability project Global Change Master Directory (GCMD) Project Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords AR07W_2013 project Reference Section ID 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 theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Discrete measurement Profile theme OCADS Study Type ALKALI CFC-12 CTDOXY CTDSAL CTDTMP DIC NH4 NITRAT NITRIT OXYGEN PHSPHT PH_TMP PH_TOT SALNTY SF6 SILCAT TA TCARBN pH theme Provider Variable Abbreviations COULOMETERS CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian HUDSON (call sign: CGDG, ICES code: 18HU, 1964-) platform ICES/SeaDataNet Ship Codes OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF ST LAWRENCE place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Atlantic Ocean place Provider Geographic Names accessLevel: Public otherRestrictions 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 HUDSON in the Davis Strait, Gulf of St. Lawrence and others from 2013-05-07 to 2013-05-28 (NCEI Accession 0144303). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_ar07w_2013. Accessed [date]. 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 the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: 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. Azetsu-Scott, K., and I. Yashayaev (2015). Carbon dioxide, hydrographic, and chemical data obtained during the R/V Hudson cruise in the North Atlantic Ocean on CLIVAR Repeat Section AR07W_2013 (07 - 28 May, 2013). Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, CLIVAR_AR07W_2013. 2015 publication CLIVAR_AR07W_2013 Azetsu-Scott, K., and I. Yashayaev author Carbon Dioxide Information Analysis Center (CDIAC) publisher Ocean CO2 [retrieved from https://cdiac.ess-dive.lbl.gov/ftp/oceans/CLIVAR/AR07W/AR07W_2013/] crossReference NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system 2022-04 publication https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans -63.4488 -48.2287 39.6892 60.5878 2013-05-07 2013-05-28 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. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. CSV 0.708 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0144303.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.3334/cdiac/otg.clivar_ar07w_2013 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/144303 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/144303 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0086/0144303/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0144303 v1.1 was published. 2016-02-25T14:24:07Z NCEI Accession 0144303 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0144303/1.1 HTTPS NCEI Accession 0144303 v1.1 published 2016-02-25T14:24:07Z download dataset 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: Seawater samples were collected in 500 mL borosilicate glass bottles and analyzed for TIC followed by TA typically within 12 hours of collection following the methods prescribed in “Guide to best practises for ocean CO2 measurements”. TIC was determined using gas extraction and coulometric titration with photometric endpoint detection (Johnson, et al., 1985). Total alkalinity was measured by open-cell potentiometric titration with full curve Gran Point determination using a Titrando dosimat with Tiamo software in conjunction with a sample delivery system built in-house. Bottles of Batch 126 Certified Reference Material (CRM) (supplied by Professor Andrew Dickson, Scripps Institution of Oceanography, San Diego, USA) were analyzed in duplicate at intervals to evaluate accuracy Parameter or Variable: Total alkalinity; Abbreviation: TA; Observation type: discrete; In-situ / Manipulation / Response variable: in-situ observation; Measured or calculated: Measured; Curve fitting method: Seawater samples were collected in 500 mL borosilicate glass bottles and analyzed for TIC followed by TA typically within 12 hours of collection following the methods prescribed in “Guide to best practises for ocean CO2 measurements”. TIC was determined using gas extraction and coulometric titration with photometric endpoint detection (Johnson, et al., 1985). Total alkalinity was measured by open-cell potentiometric titration with full curve Gran Point determination using a Titrando dosimat with Tiamo software in conjunction with a sample delivery system built in-house. Bottles of Batch 126 Certified Reference Material (CRM) (supplied by Professor Andrew Dickson, Scripps Institution of Oceanography, San Diego, USA) were analyzed in duplicate at intervals to evaluate accuracy 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: Seawater was analysed for pH according to the spectrophotometric method described in “Guide to best practises for ocean CO2 measurements” SOP 6B, edited by Andrew Dickson. Water was collected from the rosette in 60 mL borosilicate glass tubes, allowing each sample to overflow by at least one volume. Racks of tubes were then placed in a water bath held at 25 °C and allowed to thermally equilibrate for 30 minutes. Each sample was then introduced into a water-jacketed 10 cm quartz cell and 30 µL of the indicator dye m-cresol purple added before mixing well. The absorbance of light at the wavelengths 434 and 578 nm was measured with an Agilent photodiode array spectrophotometer and the resulting extinction coefficients at these wavelengths were used to determine the pH of the sample. The sample absorption spectra were not referenced to a Certified Reference Material as in the past due to the current unavailability of these CRMs. Parameter or Variable: CTDTMP; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: CTDSAL; Abbreviation: CTDSAL; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: SALNTY; Abbreviation: SALNTY; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: CTDOXY; Abbreviation: CTDOXY; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: OXYGEN; Abbreviation: OXYGEN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: SILCAT; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: NITRAT; Abbreviation: NITRAT; Unit: UMOL/KG; Controlled vocabulary name: NITRATE; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: NITRIT; Abbreviation: NITRIT; Unit: UMOL/KG; Controlled vocabulary name: NITRITE; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: PHSPHT; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: NH4; Abbreviation: NH4; Unit: UMOL/KG; Controlled vocabulary name: AMMONIUM (NH4); In-situ / Manipulation / Response variable: in-situ observation 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 observation Parameter or Variable: SF6; Abbreviation: SF6; Unit: FMOL/KG; Controlled vocabulary name: Sulfur Hexaflouride (SF6); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: TCARBN; Abbreviation: TCARBN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC); In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: ALKALI; Abbreviation: ALKALI; Unit: UMOL/KG; Controlled vocabulary name: total alkalinity; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: PH_TOT; Abbreviation: PH_TOT; Unit: @25C; Controlled vocabulary name: pH; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: PH_TMP; Abbreviation: PH_TMP; Unit: DEG_C; Controlled vocabulary name: pH; In-situ / Manipulation / Response variable: in-situ observation asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle. coulometer for DIC measurement coulometer for DIC measurement 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 . CTD CTD Conductivity-Temperature-Depth probe titrator titrator titrator HUDSON HUDSON