Current calcite (CaCO3) dissolution at the seafloor caused by anthropogenic CO2 (NCEI Accession 0176672)

browse graphicPreview graphic
This NCEI accession consists of current CaCO3 dissolution at the seafloor caused by anthropogenic CO2 in the World Oceans. This dataset contains the main results from Sulpis et al. (PNAS, 2018). All the variables have a 1x1 degree resolution. It can be used to compute calcite dissolution at the seafloor for changing bottom-water chemistry, calcite rain rates or current speeds, for instance. Oceanic uptake of anthropogenic CO2 leads to decreased pH, carbonate ion concentration, and saturation state with respect to CaCO3 minerals, causing increased dissolution of these minerals at the deep seafloor. This additional dissolution will figure prominently in the neutralization of man-made CO2. Yet, there has been no concerted assessment of the current extent of anthropogenic CaCO3 dissolution at the deep seafloor. Here, recent databases of bottom-water chemistry, benthic currents, and CaCO3 content of deep-sea sediments are combined with a new rate model to derive the global distribution of benthic calcite dissolution rates and obtain primary confirmation of an anthropogenic component. By comparing pre-industrial with present-day rates, we determine that significant anthropogenic dissolution now occurs in the western North Atlantic, amounting to 40-100% of the total seafloor dissolution at its most intense locations. At these locations, the calcite compensation depth has risen ~300 m. Increased benthic dissolution was also revealed at various hot spots in the southern extent of the Atlantic, Indian and Pacific Oceans. Our findings place constraints on future predictions of ocean acidification, are consequential to the fate of benthic calcifiers, and indicate that a by-product of human activities is currently altering the geological record of the deep sea.
  • Cite as: Sulpis, Olivier; Boudreau, Bernard P.; Mucci, Alfonso; Jenkins, Chris; Trossman, David S.; Arbic, Brian K.; Key, Robert M. (2018). Current calcite (CaCO3) dissolution at the seafloor caused by anthropogenic CO2 (NCEI Accession 0176672). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kbqy-4v05. Accessed [date].
gov.noaa.nodc:0176672
Download Data
  • HTTPS (download)
    Navigate directly to the URL for data access and direct download.
  • FTP (download)
    These data are available through the File Transfer Protocol (FTP). You may use any FTP client to download these data.
Distribution Formats
  • Originator data format
Ordering Instructions Contact NCEI for other distribution options and instructions.
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 1800-01-01 to 2002-12-31
Spatial Bounding Box Coordinates
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2018-10-11
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
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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 the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Sulpis, Olivier; Boudreau, Bernard P.; Mucci, Alfonso; Jenkins, Chris; Trossman, David S.; Arbic, Brian K.; Key, Robert M. (2018). Current calcite (CaCO3) dissolution at the seafloor caused by anthropogenic CO2 (NCEI Accession 0176672). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kbqy-4v05. Accessed [date].
Cited Authors
  • Sulpis, Olivier
  • Boudreau, Bernard P.
  • Mucci, Alfonso
  • Jenkins, Chris
  • Trossman, David S.
  • Arbic, Brian K.
  • Key, Robert M.
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: US National Science Foundation, NSERC Discovery Grants (Current calcite (CaCO3) dissolution, OCE-0960820 and PLR-1425989)
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Cruise ID
  • Various
EXPOCODE
  • Various
Global Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY
Provider Variable Names
  • Botton current speed (u)
  • Calcite dissolution rate
  • Calcium carbonate solid fraction in surface sediments (Xc)
  • Carbonate ion overall mass transfer coefficient (kstar)
  • Carbonate ion sediment-side mass transfer coefficient (ks)
  • Carbonate ion water-side mass transfer coefficient (beta)
  • Depth
  • Diffusive boundary layer thickness (zDBL)
  • Latitude (lat)
  • Longitude (lon)
Reference Section ID
  • Various
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 SeaDataNet Ship and Platform Codes
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ARCTIC OCEAN
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
  • OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN
  • OCEAN > INDIAN OCEAN
  • OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
  • OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN
  • OCEAN > SOUTHERN OCEAN
Provider Geographic Names
  • Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, Arctic Ocean
Project keywords Ocean Acidification Search Keywords
  • Ocean Carbon Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Sulpis, Olivier; Boudreau, Bernard P.; Mucci, Alfonso; Jenkins, Chris; Trossman, David S.; Arbic, Brian K.; Key, Robert M. (2018). Current calcite (CaCO3) dissolution at the seafloor caused by anthropogenic CO2 (NCEI Accession 0176672). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kbqy-4v05. Accessed [date].
Access Constraints
  • 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.
Fees
  • 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.
Lineage information for: dataset
Processing Steps
  • 2018-10-11T00:48:08Z - NCEI Accession 0176672 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Calcite Compensation Depth (CCD); Abbreviation: Depth; Unit: KM; Observation type: depth at which the calcite rain rate equals its dissolution rate, see Sulpis et al. (PNAS, 2018).
  • Parameter or Variable: Preindustrial Calcite Compensation Depth (PI_CCD); Abbreviation: Depth.
  • Parameter or Variable: Preindustrial calcite dissolution rate at the sediment-water interface (PI_r); Abbreviation: Calcite dissolution rate; Unit: mol/m2/a.
  • Parameter or Variable: Calcite dissolution rate at the sediment-water interface (r) ; Abbreviation: Calcite dissolution rate; Unit: mol/m2/a; Observation type: Current (2002).
  • Parameter or Variable: Botton current speed (u): ; Abbreviation: Botton current speed (u); Unit: m/s; Observation type: inferred from an inline computation of the annually averaged kinetic energy field of a nominally 1/25th degree global configuration of the HYbrid Coordinate Ocean Model (HYCOM), see Trossman et al. (Ocean Modelling, 2016).
  • Parameter or Variable: Carbonate ion water-side mass transfer coefficient (beta); Abbreviation: Carbonate ion water-side mass transfer coefficient (beta); Unit: m/a; Observation type: it is simply the free solution diffusion coefficient for carbonate ion divided by the thickness of the DBL, and is computed here as a function of seawater viscosity and bottom-current speed, as explained in Sulpis et al. (PNAS, 2018).
  • Parameter or Variable: Carbonate ion sediment-side mass transfer coefficient (ks); Abbreviation: Carbonate ion sediment-side mass transfer coefficient (ks); Unit: m/a; Observation type: it depends on the CaCO3 content of the sediment and is temperature-corrected.
  • Parameter or Variable: Carbonate ion overall mass transfer coefficient (kstar); Abbreviation: Carbonate ion overall mass transfer coefficient (kstar); Unit: m/a; Observation type: non-linear combination of the water-side and sediment-side mass transfer coefficients.
  • Parameter or Variable: Calcium carbonate solid fraction in surface sediments (Xc); Abbreviation: Calcium carbonate solid fraction in surface sediments (Xc); Unit: [no unit]; Observation type: from the dbSEABED database compiled by Chris Jenkins at INSTAAR, see Jenkins (Sea Technol., 1997), Goff and Jenkins (Cont. Shelf. Reas., 2008).
  • Parameter or Variable: Diffusive boundary layer thickness (zDBL); Abbreviation: Diffusive boundary layer thickness (zDBL); Unit: micrometers; Observation type: computed as explained in Sulpis et al. (PNAS, 2018).
  • Parameter or Variable: Longitude (lon); Abbreviation: Longitude (lon); Unit: in degrees N.
  • Parameter or Variable: Latitude (lat); Abbreviation: Latitude (lat); Unit: in degrees E.
Acquisition Information (collection)
Platform
  • SHIP NOT IDENTIFIED
Last Modified: 2019-06-15T20:09:52Z
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov