contact: - organization: {email: ncei.info@noaa.gov, name: NOAA National Centers for Environmental Information} roles: [custodian] - organization: {email: null, name: NOAA National Centers for Environmental Information} roles: [custodian] distribution: - name: {en: Project Metadata, fr: Project Metadata (FR)} url: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0282251.html - name: {en: NCEI Dataset Landing Page, fr: NCEI Dataset Landing Page (FR)} url: https://doi.org/10.25921/295g-sn13 - name: {en: Descriptive Information, fr: Descriptive Information (FR)} url: https://www.ncei.noaa.gov/archive/accession/oas/282251 - name: {en: HTTPS, fr: HTTPS (FR)} url: https://www.ncei.noaa.gov/archive/accession/download/282251 - name: {en: FTP, fr: FTP (FR)} url: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0218/0282251/ - name: {en: CIOOS HTTP, fr: SIOOC HTTP} url: https://data.cioospacific.ca/ocads/gov.noaa.nodc_0282251/ identification: abstract: en: 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. fr: 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. (FR) translations: fr: {message: Auto-translated using AWS, validated: false} acknowledgement: acknowledgement associated_resources: [] keywords: default: en: [0282251, CARBON - CARBONATE, CO2 ANALYZERS > CO2 ANALYZERS, 'COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University', Climatology, Columbia University; Lamont-Doherty Earth Observatory, Delta pCO2, EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE, LATITUDE, LONGITUDE, Ocean Carbon and Acidification Data System (OCADS) Project, 'UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado', 'University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences', VARIOUS CHARTERED VESSELS, World-Wide Distribution, atmfco2, chemical, dfco2, flux, lat, lon, month] fr: [0282251 (FR), CARBON - CARBONATE (FR), CO2 ANALYZERS > CO2 ANALYZERS (FR), 'COLUMBIA/LDEO > Lamont-Doherty Earth Observatory, Columbia University (FR)', Climatology (FR), Columbia University; Lamont-Doherty Earth Observatory (FR), Delta pCO2 (FR), EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE (FR), LATITUDE (FR), LONGITUDE (FR), Ocean Carbon and Acidification Data System (OCADS) Project (FR), 'UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado (FR)', 'University of Colorado Boulder, Cooperative Institute for Research In Environmental Sciences (FR)', VARIOUS CHARTERED VESSELS (FR), World-Wide Distribution (FR), atmfco2 (FR), chemical (FR), dfco2 (FR), flux (FR), lat (FR), lon (FR), month (FR)] eov: en: ['DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce', EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE, GEOGRAPHIC REGION > GLOBAL OCEAN, US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory, US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP), carbon dioxide (CO2) gas analyzer, oceanography] fr: ['DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce (FR)', EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE (FR), GEOGRAPHIC REGION > GLOBAL OCEAN (FR), US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory (FR), US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) (FR), carbon dioxide (CO2) gas analyzer (FR), oceanography (FR)] project: en: [project_a, project_b] fr: [project_a in french, project_b in french] status: onGoing temporal_begin: '1950-07-31' temporal_duration: P1D temporal_end: '2025-04-16' time_coverage_resolution: P1D title: en: Climatological distributions of sea-air DeltafCO2 and CO2 flux densities in the Global Surface Ocean (NCEI Accession 0282251) fr: Climatological distributions of sea-air DeltafCO2 and CO2 flux densities in the Global Surface Ocean (NCEI Accession 0282251) (FR) translations: fr: {message: Auto-translated using AWS, validated: false} instruments: - description: {en: null, fr: null} id: null manufacturer: null type: {en: null, fr: null} version: null metadata: comment: auto-generated comment dates: {creation: '2024-01-01'} history: - scope: model statement: en: null fr: None (FR) translations: fr: {message: text translated using the Amazon translate service / texte traduit à l'aide du service de traduction Amazon, verified: false} - scope: model statement: en: null fr: None (FR) translations: fr: {message: text translated using the Amazon translate service / texte traduit à l'aide du service de traduction Amazon, verified: false} identifier: gov.noaa.nodc:0282251 language: en maintenance_note: auto-generated naming_authority: ca.cioos scope: model use_constraints: licence: {code: CC-BY-4.0, title: Creative Commons Attribution 4.0, url: 'https://creativecommons.org/licenses/by/4.0/'} limitations: en: limitations in english fr: limitations in french translations: fr: {message: Auto-translated using AWS, validated: false} spatial: bbox: [-180.0, -90.0, 180.0, 90.0] description: description of the spatial extent or study area of the dataset descriptionIdentifier: A2345-FS323-DG434-345DG vertical: [0, 10] vertical_positive: down