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Climatological distributions of sea-air DeltafCO2 and CO2 flux densities in the Global Surface Ocean (NCEI Accession 0282251)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:29 AM | Dataset Last Updated: August 30, 2024 at 12:00 AM
The late Taro Takahashi (LDEO/Columbia University) provided the first near-global monthly air-sea CO2 flux climatology in Takahashi et al. (1997), based on available surface water partial pressure of CO2 measurements. This product has been a benchmark for uptake of CO2 in the ocean. Several versions have been provided since, with improvements in procedures and large increases in observations, culminating in the authoritative assessment in Takahashi et al. (2009). Here we provide and document the last iteration using a greatly increased dataset (SOCATv2022) and determining fluxes using air-sea partial pressure differences as a climatological reference for the period 1980-2021. The resulting net flux for the open ocean region is estimated as -1.79 PgC yr-1 which compares well with other global mean flux estimates. While global flux results are consistent, differences in regional means and seasonal amplitudes are discussed. Consistent with other studies, we find the largest differences in the data-sparse southeast Pacific and Southern Ocean.

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0282251 CARBON - CARBONATE Delta pCO2 LATITUDE LONGITUDE carbon dioxide (CO2) gas analyzer chemical VARIOUS CHARTERED VESSELS

Complete Metadata
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description The late Taro Takahashi (LDEO/Columbia University) provided the first near-global monthly air-sea CO2 flux climatology in Takahashi et al. (1997), based on available surface water partial pressure of CO2 measurements. This product has been a benchmark for uptake of CO2 in the ocean. Several versions have been provided since, with improvements in procedures and large increases in observations, culminating in the authoritative assessment in Takahashi et al. (2009). Here we provide and document the last iteration using a greatly increased dataset (SOCATv2022) and determining fluxes using air-sea partial pressure differences as a climatological reference for the period 1980-2021. The resulting net flux for the open ocean region is estimated as -1.79 PgC yr-1 which compares well with other global mean flux estimates. While global flux results are consistent, differences in regional means and seasonal amplitudes are discussed. Consistent with other studies, we find the largest differences in the data-sparse southeast Pacific and Southern Ocean.
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0282251.xml
issued 2023-08-31T00:00:00.000+00:00
keyword 
[
  "0282251",
  "CARBON - CARBONATE",
  "Delta pCO2",
  "LATITUDE",
  "LONGITUDE",
  "carbon dioxide (CO2) gas analyzer",
  "chemical",
  "VARIOUS CHARTERED VESSELS",
  "Lamont-Doherty Earth Observatory",
  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
  "University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences",
  "University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)",
  "World-Wide Distribution",
  "oceanography",
  "COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University",
  "DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE",
  "Climatology",
  "atmfco2",
  "dfco2",
  "flux",
  "lat",
  "lon",
  "month",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "GEOGRAPHIC REGION > GLOBAL OCEAN"
]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2024-08-30T00:00:00.000+00:00
publisher 
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  "@type": "org:Organization"
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references 
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rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1980-01-01T00:00:00+00:00/2021-12-31T00:00:00+00:00
theme 
[
  "geospatial"
]
title Climatological distributions of sea-air DeltafCO2 and CO2 flux densities in the Global Surface Ocean (NCEI Accession 0282251)

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