Anthropogenic carbon distributions in the Atlantic Ocean: data-based estimates from the Arctic to the Antarctic
International audience Five of the most recent observational methods to estimate anthropogenic CO 2 (C ant ) are applied to a high-quality dataset from five representative sections of the Atlantic Ocean extending from the Arctic to the Antarctic. Between latitudes 60° N–40° S all methods give simila...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2008
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Subjects: | |
Online Access: | https://hal.science/hal-00330292 https://hal.science/hal-00330292/document https://hal.science/hal-00330292/file/bgd-5-1421-2008.pdf https://doi.org/10.5194/bg-6-439-2009 |
Summary: | International audience Five of the most recent observational methods to estimate anthropogenic CO 2 (C ant ) are applied to a high-quality dataset from five representative sections of the Atlantic Ocean extending from the Arctic to the Antarctic. Between latitudes 60° N–40° S all methods give similar spatial distributions and magnitude of C ant . Conversely, large discrepancies are found in the Southern Ocean and Nordic Seas. The differences in the Southern Ocean have a significant impact on the anthropogenic carbon inventories. The calculated total inventories of C ant for the Atlantic referred to 1994 range from 48 to 67 Pg (10 15 g) of carbon, with an average of 54±8 Pg C, which is higher than previous estimates. These results, both the detailed C ant distributions and extrapolated inventories, will help to validate biogeochemical ocean models and coupled climate-carbon models. |
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