A first estimate of present and preindustrial air‐sea CO<sub>2</sub> flux patterns based on ocean interior carbon measurements and models
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- M. Gloor
- Max‐Planck Institut für Biogeochemie Jena Germany
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- N. Gruber
- IGPP and Department of Atmospheric Sciences University of California Los Angeles USA
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- J. Sarmiento
- Atmospheric and Oceanic Sciences Department Princeton NJ USA
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- C. L. Sabine
- NOAA Pacific Marine Environmental Laboratory Seattle USA
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- R. A. Feely
- NOAA Pacific Marine Environmental Laboratory Seattle USA
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- C. Rödenbeck
- Max‐Planck Institut für Biogeochemie Jena Germany
書誌事項
- 公開日
- 2003-01
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1029/2002gl015594
- 公開者
- American Geophysical Union (AGU)
この論文をさがす
説明
<jats:p>The exchange of CO<jats:sub>2</jats:sub> across the air‐sea interface is a main determinant of the distribution of atmospheric CO<jats:sub>2</jats:sub> from which major conclusions about the carbon cycle are drawn, yet our knowledge of atmosphere‐ocean fluxes still has major gaps. A new analysis based on recent ocean dissolved inorganic carbon data and on models permits us to separately estimate the preindustrial and present air‐sea CO<jats:sub>2</jats:sub> flux distributions without requiring knowledge of the gas exchange coefficient. We find a smaller carbon sink at mid to high latitudes of the southern hemisphere than previous data based estimates and a shift of ocean uptake to lower latitude regions compared to estimates and simulations. The total uptake of anthropogenic CO<jats:sub>2</jats:sub> for 1990 is 1.8 (±0.4) Pg C yr<jats:sup>−1</jats:sup>. Our ocean based results support the interpretation of the latitudinal distribution of atmospheric CO<jats:sub>2</jats:sub> data as evidence for a large northern hemisphere land carbon sink.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 30 (1), 10-, 2003-01
American Geophysical Union (AGU)