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  A first estimate of present and preindustrial air-sea CO2 flux patterns based on ocean interior carbon measurements and models

Gloor, M., Gruber, N., Sarmiento, J., Sabine, C. L., Feely, R. A., & Rödenbeck, C. (2003). A first estimate of present and preindustrial air-sea CO2 flux patterns based on ocean interior carbon measurements and models. Geophysical Research Letters, 30(1), 1010. doi:10.1029/2002GL015594.

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BGC0596.pdf (Publisher version), 647KB
 
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http://dx.doi.org/10.1029/2002GL015594 (Publisher version)
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 Creators:
Gloor, M.1, Author           
Gruber, N., Author
Sarmiento, J., Author
Sabine, C. L., Author
Feely, R. A., Author
Rödenbeck, C.2, Author           
Affiliations:
1Tall Tower Atmospheric Gas Measurements, Dr. J. Lavrič, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497786              
2Inverse Data-driven Estimation, Dr. C. Rödenbeck, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497785              

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Free keywords: Anthropogenic CO2; circulation; transport; heat
 Abstract: The exchange of CO2 across the air-sea interface is a main determinant of the distribution of atmospheric CO2 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 CO2 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 CO2 for 1990 is 1.8 (+/-0.4) Pg C yr(-1). Our ocean based results support the interpretation of the latitudinal distribution of atmospheric CO2 data as evidence for a large northern hemisphere land carbon sink.

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 Dates: 2003
 Publication Status: Issued
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 Identifiers: DOI: 10.1029/2002GL015594
Other: BGC0596
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Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 30 (1) Sequence Number: - Start / End Page: 1010 Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217