F.: Anthropogenic carbon distributions in the Atlantic Ocean: data-based estimates from the Arctic to the Antarctic

Abstract. Five of the most recent observational methods to estimate anthropogenic CO2 (Cant) are applied to a high-quality dataset from five representative sections of the At-lantic Ocean extending from the Arctic to the Antarctic. Be-tween latitudes 60 ◦ N–40 ◦ S all methods give similar spatial di...

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Bibliographic Details
Main Authors: F. Touratier, C. Lo Monaco, D. W. Waugh, X. A. Padin, R. G. J. Bellerby, C. Goyet, N. Metzl, A. F. Rı́os, F. F. Pérez
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Antarctic
Arctic
Southern Ocean
The Antarctic
Antarc*
Nordic Seas
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.689.2635
http://franck.touratier.free.fr/cariboost_files/BioGeoScVelazques2009.pdf
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Summary:Abstract. Five of the most recent observational methods to estimate anthropogenic CO2 (Cant) are applied to a high-quality dataset from five representative sections of the At-lantic Ocean extending from the Arctic to the Antarctic. Be-tween latitudes 60 ◦ N–40 ◦ S all methods give similar spatial distributions and magnitude of Cant. However, discrepan-cies are found in some regions, in particular in the South-ern Ocean and Nordic Seas. The differences in the Southern Ocean have a significant impact on the anthropogenic carbon inventories. The calculated total inventories of Cant for the Atlantic referred to 1994 vary from 48 to 67 Pg (1015 g) of carbon, with an average of 54±8 Pg C, which is higher than previous estimates. These results, both the detailed Cant dis-tributions and extrapolated inventories, will help to evaluate biogeochemical ocean models and coupled climate-carbon models. 1

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