Record Details

Wind-driven mixing causes a reduction in the strength of the continental shelf carbon pump in the Chukchi Sea

ScholarsArchive at Oregon State University

Field Value
Title Wind-driven mixing causes a reduction in the strength of the continental shelf carbon pump in the Chukchi Sea
Names Hauri, Claudine (creator)
Winsor, Peter (creator)
Juranek, Laurie W. (creator)
McDonnell, Andrew M. P. (creator)
Takahashi, Taro (creator)
Mathis, Jeremy T. (creator)
Date Issued 2013-11-28 (iso8601)
Note To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by American Geophysical Union and can be found at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1944-8007.
Abstract The Chukchi Sea is thought to be a globally important sink
of atmospheric CO₂ due to the summertime drawdown of
surface pCO₂ by phytoplankton and subsequent shelf-to-basin
transport of CO₂-enriched subsurface waters into the upper
halocline of the Arctic Ocean. Here we show that annually
occurring storm-induced mixing events during autumn months
disrupt water column stratification and stir up remineralized
carbon from subsurface waters to the surface, leading to CO₂
outgassing to the atmosphere. Our analysis provides a new
understanding of the dynamics of carbon cycling in the
region and suggests that late season wind events are strong
and frequent enough to significantly decrease the carbon sink
strength of the Chukchi Sea on a scale of relevance to the
global carbon cycle. These results highlight the importance
of obtaining data with more complete seasonal and spatial
coverage in order to accurately constrain regional to basin-scale
carbon flux budgets.
Genre Article
Topic Chukchi Sea
Identifier Hauri, C., P. Winsor, L. W. Juranek, A. M. P. McDonnell, T. Takahashi, and J. T. Mathis (2013), Wind-driven mixing causes a reduction in the strength of the continental shelf carbon pump in the Chukchi Sea, Geophysical Research Letters, 40, 5932–5936, doi:10.1002/2013GL058267.

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