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    • Spatial and temporal variations of aragonite saturation states in the surface waters of the Western Arctic Ocean from 2016 to 2018 (NCEI Accession 0241111)

    Metadata Updated: November 1, 2023

    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.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date 2023-09-28T13:43:03Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date November 1, 2023
    Reference Date(s) September 15, 2021 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2023-09-28T13:43:03Z
    Metadata Created Date March 17, 2023
    Metadata Updated Date November 1, 2023
    Reference Date(s) September 15, 2021 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0241111
    Access Constraints 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]., 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.
    Bbox East Long -156.34
    Bbox North Lat 78.95
    Bbox South Lat 74.5
    Bbox West Long 173.61
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0241111
    Graphic Preview Type PNG
    Harvest Object Id c69629b5-de12-438f-90ae-943e84d3db20
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[173.61, 74.5], [-156.34, 74.5], [-156.34, 78.95], [173.61, 78.95], [173.61, 74.5]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2016-08-01
    Temporal Extent End 2018-10-30

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