gov.noaa.nodc:0253753 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 2026-04-20T13:11:04Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Total alkalinity, pH on total scale, water temperature, salinity, silicate, nitrate, phosphate, delta C13, and other measurements collected from profile and discrete sample observations during the CCGS Amundsen GEOTRACES cruise ArcticNet1503 (EXPOCODE 18DL20150905) in the Arctic Ocean and Northwestern Passages from 2015-09-05 to 2015-10-01 (NCEI Accession 0253753) 2022-06-10 publication 2022-06-08 creation International DOI Foundation (IDF) 10.25921/4xsw-e696 NOAA National Centers for Environmental Information gov.noaa.nodc:0253753 NCEI Archive Management System 0253753 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 Nico Lange GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) nlange@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information resourceProvider GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information resourceProvider Roger François The University of British Columbia (UBC) https://www.ubc.ca/ HTTPS The University of British Columbia (UBC) website Institution web page information principalInvestigator Helmuth Thomas Dalhousie University helmuth.thomas@dal.ca https://www.dal.ca/ HTTPS Dalhousie University website Institution web page information principalInvestigator Maria T. Maldonado collaborator Jean-Éric Tremblay collaborator Alfonso Mucci McGill University collaborator François, Roger The University of British Columbia (UBC) https://www.ubc.ca/ HTTPS The University of British Columbia (UBC) website Institution web page information author Thomas, Helmuth Dalhousie University https://www.dal.ca/ HTTPS Dalhousie University website Institution web page information author Mucci, Alfonso McGill University author Tremblay, Jean-Éric author Maldonado, Maria T. author The University of British Columbia (UBC) https://www.ubc.ca/ HTTPS The University of British Columbia (UBC) website Institution web page information contributor Dalhousie University https://www.dal.ca/ HTTPS Dalhousie University website Institution web page information contributor tableDigital This dataset includes discrete profile measurements of total alkalinity, pH on total scale, water temperature, salinity, silicate, nitrate, phosphate, delta C13, and other measurements collected during the CCGS Amundsen GEOTRACES cruise ArcticNet1503 (EXPOCODE 18DL20150905) in the Arctic Ocean and Northwestern Passages from 2015-09-05 to 2015-10-01. 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:0253753 Preview graphic PNG 0253753 NCEI ACCESSION NUMBER 2022-06-02 publication DELTA CARBON-13 NITRATE pH phosphate SALINITY silicate total alkalinity WATER TEMPERATURE theme NODC DATA TYPES THESAURUS CTD Niskin bottle nutrient autoanalyzer pH sensor salinometer temperature sensor titrator instrument NODC INSTRUMENT TYPES THESAURUS chemical discrete sample physical profile theme NODC OBSERVATION TYPES THESAURUS CCGS Amundsen platform NODC PLATFORM NAMES THESAURUS Dalhousie University The University of British Columbia dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS GEOMAR Helmholtz Centre for Ocean Research Kiel dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS GEOTRACES GLOBAL OCEAN DATA ANALYSIS PROJECT (GLODAP) project NODC PROJECT NAMES THESAURUS Arctic Ocean Northwestern Passages place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany 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 ArcticNet1503 project Cruise ID 18DL20150905 project EXPOCODE GLODAP > Global Ocean Data Analysis Project IPY-GEOTRACES > International Polar Year GEOTRACES: An international study of the biogeochemical cycles of Trace Elements and Isotopes in the Arctic and Southern Oceans 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 Canadian Archipelago GEOTRACES project Reference Section ID EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE 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 theme OCADS Study Type GEOTRACES theme Provider Keywords ALKALI CTDSAL CTDTMP DELC13 NITRAT PHSPHT PH_TOT SILCAT theme Provider Variable Abbreviations AUTOANALYZER > AUTOANALYZER CTD > Conductivity, Temperature, Depth NISKIN BOTTLES PH METERS > PH METERS SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS 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 Ships platform Global Change Master Directory (GCMD) Platform 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 Amundsen (call sign: CGDT, ICES code: 18DL, 2003-) platform ICES/SeaDataNet Ship Codes OCEAN > ARCTIC OCEAN 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 Arctic Ocean Northwestern Passages place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: François, Roger; Thomas, Helmuth; Mucci, Alfonso; Tremblay, Jean-Éric; Maldonado, Maria T. (2022). Total alkalinity, pH on total scale, water temperature, salinity, silicate, nitrate, phosphate, delta C13, and other measurements collected from profile and discrete sample observations during the CCGS Amundsen GEOTRACES cruise ArcticNet1503 (EXPOCODE 18DL20150905) in the Arctic Ocean and Northwestern Passages from 2015-09-05 to 2015-10-01 (NCEI Accession 0253753). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4xsw-e696. 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. Canadian Archipelago Cruises 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_Canada_Arch.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/clivar_Canada_Arch.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project 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 -150.001 -96.754 71.006 76.993 2015-09-05 2015-10-01 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. Originator data format 0.504 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0253753.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/4xsw-e696 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/253753 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/253753 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0203/0253753/ 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 0253753 v1.1 was published. 2022-06-10T22:17:56Z NCEI Accession 0253753 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0253753/1.1 HTTPS NCEI Accession 0253753 v1.1 published 2022-06-10T22:17:56Z download dataset Parameter or Variable: Total Alkalinity; Abbreviation: ALKALI; Unit: UMOL/KG; Observation type: discrete; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: pH on Total Scale; Abbreviation: PH_TOT; Observation type: discrete; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: CTD Temperature; Abbreviation: CTDTMP; Unit: degrees celcius; Observation type: CTD sensor; Sampling instrument: CTD; Analyzing instrument: CTD Sensor; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: CTD Salinity; Abbreviation: CTDSAL; Observation type: CTD sensor; Sampling instrument: CTD; Analyzing instrument: CTD sensor; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: Phosphate; Abbreviation: PHSPHT; Unit: UMOL/KG; Observation type: Discrete, bottle; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: Silicate; Abbreviation: SILCAT; Unit: UMOL/KG; Observation type: Discrete, bottle; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: Nitrate; Abbreviation: NITRAT; Unit: UMOL/KG; Observation type: Discrete, bottle; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value Parameter or Variable: Delta C13; Abbreviation: DELC13; Unit: /MILL; Observation type: Discrete, bottle; Sampling instrument: Niskin Bottles; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian CTD CTD Conductivity-Temperature-Depth probe Niskin bottle Niskin bottle Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle? nutrient autoanalyzer nutrient autoanalyzer 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 pH sensor pH sensor generic meter used to measure pH Any of a class of instruments used to quantify pH in a water or other type of sample. salinometer salinometer generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements temperature sensor temperature sensor A sensor used to measure temperature. titrator titrator titrator CCGS Amundsen ICES request for the vessel Amundsen from CANADA. NOTE: Canada platform SIR JOHN FRANKLIN (NODC Code=18SZ) is a previous name for this platform and had the same call sign. Name : Amundsen Flag : CANADA - CA (ISO Country Code) Call Sign : CGDT Title : CCGS Platform Class : 31 Research vessel IMO : 7510846 Commissioned Date : 2003 Current Length : 98.33 Built : 1979 Previous Name (Notes): SIR JOHN FRANKLIN Notes : Converted to coast guard icebreaker/research vessel in 2003 Additional Information Sources: - http://www.amundsen.ulaval.ca/index.php?url=11210 Same Vessels Info: 18SZ - SIR JOHN FRANKLIN Confirmed by NOAA on 2013-04-15.