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| Lo Monaco, C; Metzl, N; Poisson, A; Brunet, C; Schauer, B. |
| The Southern Ocean, where various water masses are formed ( mode, intermediate, deep, and bottom waters), has a high potential to absorb anthropogenic CO(2) ( C ant). However, most data-based and model estimates indicate low C(ant) inventories south of 50 degrees S. In order to investigate this paradox, the distribution of C(ant) is estimated between South Africa and Antarctica ( World Ocean Circulation Experiment ( WOCE) line I6) based on a back-calculation technique previously used in the North Atlantic ( Kortzinger et al., 1998) and adapted here for application in the Southern Ocean. At midlatitudes (30 degrees-50 degrees S), formation and spreading of mode and intermediate waters results in a deep penetration of C(ant) ( down to 2000 m). South of 50... |
| Tipo: Text |
Palavras-chave: Anthropogenic CO2; Southern Ocean; WOCE. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00233/34409/32823.pdf |
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| Lo Monaco, C; Goyet, C; Metzl, N; Poisson, A; Touratier, F. |
| The Southern Ocean is thought to play an important role in the context of global warming and anthropogenic emissions of CO(2) due to its high sensitivity to both climate change and changes in the carbon cycle. Assessing the penetration of anthropogenic CO(2) (C(ant)) into the Southern Ocean is therefore highly relevant to reduce the uncertainties attached to both the present knowledge of anthropogenic carbon inventories and predictions made by current ocean carbon models. This study compares different data-based approaches for estimating the distribution of C(ant) in the ocean: a recently developed method based on the composite Tracer Combining Oxygen, Inorganic Carbon, and Total Alkalinity (TrOCA) and the "historical'' back-calculation methods (the... |
| Tipo: Text |
Palavras-chave: Anthropogenic carbon; Southern Ocean; WOCE. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00233/34405/32827.pdf |
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