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An Investigation of Gas Exchange and Water Circulation in the Amundsen Sea Based On Dissolved Inorganic Radiocarbon

Cited 4 time in wos
Cited 6 time in scopus
Title
An Investigation of Gas Exchange and Water Circulation in the Amundsen Sea Based On Dissolved Inorganic Radiocarbon
Other Titles
용존무기 탄소동위원소 분석을 통한 아문젠 기체교환과 해류순환 연구
Authors
Kim, Bumsoo
Lee, SangHoon
Kim, Minkyoung
Hahm, Doshik
Rhee, Tae Siek
Hwang, Jeomshik
Subject
Geology
Keywords
Amundsen searadiocarbondissolved inorganic carbongas exchangewater circulation
Issue Date
2018-11-28
Citation
Kim, Bumsoo, et al. 2018. "An Investigation of Gas Exchange and Water Circulation in the Amundsen Sea Based On Dissolved Inorganic Radiocarbon". GEOPHYSICAL RESEARCH LETTERS, 45(22): 12368-12375.
Abstract
We used radiocarbon isotope ratios in dissolved inorganic carbon to assess gas exchange and water circulation in the western Amundsen Sea. Radiocarbon isotope ratios indicate that Circumpolar Deep Water enters the basin along the seafloor and that the upper layer is formed through modification of this water mass. In the Amundsen Sea Polynya, radiocarbon isotope ratios of surface water are higher than those of underlying Winter Water, implying rapid absorption of atmospheric CO2. A CO2 absorption rate of 45mmol m(-2) d(-1) calculated for a site in the central polynya is higher than that near the Dotson Ice Shelf (28mmolm(-2) d(-1)). The turnover time of water in the Dotson Trough region of the western Amundsen Sea is estimated to be 10-30years, based on results from a box model and radiocarbon mass balance.
URI
https://repository.kopri.re.kr/handle/201206/13570
DOI
http://dx.doi.org/10.1029/2018GL079464
Type
Article
Station
Araon
Indexed
SCI
Appears in Collections  
2017-2017, Ocean-to-Ice Interactions in Amundsen Sea: Ice shelf melting and its impact on ocean processes (17-17) / Lee, SangHoon (PE17060)
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