gov.noaa.nodc:0241111 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 2026-03-26T08:03:11Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Spatial and temporal variations of aragonite saturation states in the surface waters of the Western Arctic Ocean from 2016 to 2018 (NCEI Accession 0241111) 2021-09-15 publication 2021-09-14 creation International DOI Foundation (IDF) 10.25921/rycv-m555 NOAA National Centers for Environmental Information gov.noaa.nodc:0241111 NCEI Archive Management System 0241111 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 Dongseon Kim Korea Institute of Ocean Science and Technology (KIOST) http://www.kiost.ac.kr/eng.do HTTP Korea Institute of Ocean Science and Technology (KIOST) website Institution web page information resourceProvider Korea Institute of Ocean Science and Technology (KIOST) http://www.kiost.ac.kr/eng.do HTTP Korea Institute of Ocean Science and Technology (KIOST) website Institution web page information resourceProvider Dongseon Kim Korea Institute of Ocean Science and Technology (KIOST) dkim@kiost.ac.kr http://www.kiost.ac.kr/eng.do HTTP Korea Institute of Ocean Science and Technology (KIOST) website Institution web page information principalInvestigator Kim, Dongseon Korea Institute of Ocean Science and Technology (KIOST) http://www.kiost.ac.kr/eng.do HTTP Korea Institute of Ocean Science and Technology (KIOST) website Institution web page information author Korea Institute of Ocean Science and Technology (KIOST) http://www.kiost.ac.kr/eng.do HTTP Korea Institute of Ocean Science and Technology (KIOST) website Institution web page information contributor tableDigital This dataset consists of spatial and temporal variations of aragonite saturation states in the surface waters of the Western Arctic Ocean from 2016 to 2018. The dataset also includes measurements of surface water temperature, salinity, dissolved inorganic carbon (DIC) and total alkalinity (TA). The aragonite saturation state (Ωarag) was determined for the surface waters of the western Arctic Ocean over three years, from 2016 to 2018, in an investigation of the present state of acidification of its waters and the main factors controlling the spatial and temporal variations in the surface Ωarag. The study area was divided into the Chukchi marginal area (CMA) and the East Siberian marginal area (ESMA) along a longitude of 180°E. In the CMA, the surface Ωarag during the study period ranged from 0.86 to 1.77, with an average of 1.16, indicating near saturation with aragonite. In the ESMA, the surface Ωarag during the study period ranged from 1.01 to 2.21, with a higher average (1.59) than the CMA. The surface Ωarag of the CMA was mainly determined by the mixing of seawater and freshwater introduced from rivers and/or sea ice, whereas in the ESMA it was influenced by the mixing of seawater and freshwater but also biological production and lateral mixing. In the near future, most of the surface waters of the CMA will likely be undersaturated with aragonite, which will threaten the survival of calcareous organisms and may lead to their extinction from this area. However, in the ESMA, the relatively high rate of biological production will increase the surface Ωarag, thus delaying aragonite undersaturation of the surface water. 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:0241111 Preview graphic PNG 0241111 NCEI ACCESSION NUMBER 2021-09-06 publication DISSOLVED INORGANIC CARBON (DIC) SALINITY total alkalinity WATER TEMPERATURE theme NODC DATA TYPES THESAURUS carbon dioxide (CO2) gas analyzer CTD titrator instrument NODC INSTRUMENT TYPES THESAURUS chemical physical surface measurements theme NODC OBSERVATION TYPES THESAURUS Araon platform NODC PLATFORM NAMES THESAURUS Korea Institute of Ocean Science and Technology dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Korea Institute of Ocean Science and Technology dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) project NODC PROJECT NAMES THESAURUS Arctic Ocean Chukchi Sea East Siberian Sea place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication ARA07B_2016 ARA08B_2017 ARA09B_2018 project Cruise ID 24HU20160805 24HU20170806 24HU20180804 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords Arctic Ocean project Reference Section ID EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON 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 Surface measurement theme OCADS Study Type CTDSAL CTDTMP DIC TA ΩARG theme Provider Variable Abbreviations CO2 ANALYZERS > CO2 ANALYZERS 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 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 ARAON (call sign: DSQL7, ICES code: 24HU, 2009-) platform ICES/SeaDataNet Ship Codes OCEAN > ARCTIC OCEAN OCEAN > ARCTIC OCEAN > CHUKCHI SEA 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 place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Kim, Dongseon (2021). Spatial and temporal variations of aragonite saturation states in the surface waters of the Western Arctic Ocean from 2016 to 2018 (NCEI Accession 0241111). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/rycv-m555. 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. Arctic Ocean Cruises 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/CLIVAR_Arctic_Ocean.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/CLIVAR_Arctic_Ocean.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 173.61 -156.34 74.5 78.95 2016-08-01 2018-10-30 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 0.28 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0241111.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/rycv-m555 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/241111 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/241111 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0187/0241111/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). 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You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0241111 v1.1 was published. 2021-09-15T23:31:27Z NCEI Accession 0241111 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0241111/1.1 HTTPS NCEI Accession 0241111 v1.1 published 2021-09-15T23:31:27Z download dataset Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: μmol/kg; Observation type: profile, laboratory experiment; Measured or calculated: measured; Sampling instrument: Niskin bottle; Analyzing instrument: Coulometer; Detailed sampling and analyzing information: VINDTA C; Replicate information: duplicate; Standardization frequency: every 6 hours; CRM manufacturer: Andrew Dickson's lab at Scripps Institute of Oceanography; Preservation method: HgCl2; Preservative volume: 20 μL Mercury Chloride is added to 500 mL samples.; Uncertainty: ± 1μmol/kg; Researcher institution: Korea Polar Research Institute Parameter or Variable: Total alkalinity; Abbreviation: TA; Unit: μmol/kg; Observation type: profile, laboratory experiment; Measured or calculated: measured; Sampling instrument: Niskin bottle; Analyzing instrument: pH meter; Cell type (open or closed): open; Curve fitting method: Gran titration; Replicate information: duplicate; Standardization frequency: every 6 hours; CRM manufacturer: Andrew Dickson's lab at Scripps Institute of Oceanography; Preservation method: HgCl2; Preservative volume: 20 μL Mercury Chloride is added to 500 mL samples.; Uncertainty: ± 2μmol/kg; Researcher institution: Korea Polar Research Institute Parameter or Variable: aragonite saturation state; Abbreviation: ΩARG; Unit: no unit Parameter or Variable: CTD Temperature; Abbreviation: CTDTMP; Unit: °C; Observation type: surface; Sampling instrument: CTD; Analyzing instrument: CTD Parameter or Variable: CTD Salinity; Abbreviation: CTDSAL; Observation type: surface; Sampling instrument: CTD; Analyzing instrument: CTD asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian carbon dioxide (CO2) gas analyzer carbon dioxide (CO2) gas analyzer measures gaseous carbon dioxide Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption. Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water. To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water. CTD CTD Conductivity-Temperature-Depth probe titrator titrator titrator Araon Platform Class : 31 Research vessel Commissioned Date : 2009 Built : 2009 IMO : 9490935 MMSI: 441619000 Current Length : 109.5 Notes : Icebreaker Information Sources : http://www.go-ship.org/Docs/AraonBrochure.pdf https://en.wikipedia.org/wiki/RV_Araon http://www.shipspotting.com/gallery/photo.php?lid=1767563 https://www.marinetraffic.com/en/ais/details/ships/shipid:674189/mmsi:441619000/imo:9490935/vessel:ARAON