An increasing CO2 sink in the Arctic Ocean due to sea-ice loss

被引：142
作者：
Bates, Nicholas R.
Moran, S. Bradley
Hansell, Dennis A.
Mathis, Jeremy T.
机构：
[1] Bermuda Inst Ocean Sci, Ferry Reach GE01, Bermuda
[2] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA
[3] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 23期
关键词：
D O I：
10.1029/2006GL027028
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The Arctic Ocean and adjacent continental shelf seas such as the Chukchi and Beaufort Seas are particularly sensitive to long-term change and low-frequency modes of atmosphere-ocean-sea-ice forcing. The cold, low salinity surface waters of the Canada Basin of the Arctic Ocean are undersaturated with respect to CO2 in the atmosphere and the region has the potential to take up atmospheric CO2, although presently suppressed by sea-ice cover. Undersaturated seawater CO2 conditions of the Arctic Ocean are maintained by export of water with low dissolved inorganic carbon content and modified by intense seasonal shelf primary production. Sea-ice extent and volume in the Arctic Ocean has decreased over the last few decades, and we estimate that the Arctic Ocean sink for CO2 has tripled over the last 3 decades ( 24 Tg yr(-1) to 66 Tg yr(-1)) due to sea-ice retreat with future sea-ice melting enhancing air-to-sea CO2 flux by similar to 28% per decade.
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页数：7
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