DOI: 10.1002/2015GL063796
论文题名: The seasonal cycle of ocean-atmosphere CO2 flux in Ryder Bay, west Antarctic Peninsula
作者: Legge O.J. ; Bakker D.C.E. ; Johnson M.T. ; Meredith M.P. ; Venables H.J. ; Brown P.J. ; Lee G.A.
刊名: Geophysical Research Letters
ISSN: 0094-8742
EISSN: 1944-8473
出版年: 2015
卷: 42, 期: 8 起始页码: 2934
结束页码: 2942
语种: 英语
英文关键词: carbon cycling
; ocean-atmosphere CO2 flux
; polar time series
; RaTS
; Ryder Bay
; seasonal sea ice
Scopus关键词: Carbon
; Carbon dioxide
; Oceanography
; Rating
; Sea ice
; Antarctic Peninsula
; Carbon cycling
; Dissolved inorganic carbon
; Ocean atmosphere
; Primary production
; Ryder Bay
; Southern ocean
; Vertical mixing
; Ice
; carbon dioxide
; carbon flux
; dissolved inorganic carbon
; primary production
; sea ice
; seasonal variation
; vertical mixing
; Antarctic Peninsula
; Antarctica
; Ryder Bay
; West Antarctica
; Rattus
英文摘要: Approximately 15 million km2 of the Southern Ocean is seasonally ice covered, yet the processes affecting carbon cycling and gas exchange in this climatically important region remain inadequately understood. Here, 3 years of dissolved inorganic carbon (DIC) measurements and carbon dioxide (CO2) fluxes from Ryder Bay on the west Antarctic Peninsula (WAP) are presented. During spring and summer, primary production in the surface ocean promotes atmospheric CO2 uptake. In winter, higher DIC, caused by net heterotrophy and vertical mixing with Circumpolar Deep Water, results in outgassing of CO2 from the ocean. Ryder Bay is found to be a net sink of atmospheric CO2 of 0.59-0.94 mol Cm-2 yr-1 (average of 3 years). Seasonal sea ice cover increases the net annual CO2 uptake, but its effect on gas exchange remains poorly constrained. A reduction in sea ice on the WAP shelf may reduce the strength of the oceanic CO2 sink in this region. ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929505312&doi=10.1002%2f2015GL063796&partnerID=40&md5=e96c848788a673efecc04a64528b7bb4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8358
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, United Kingdom
Recommended Citation:
Legge O.J.,Bakker D.C.E.,Johnson M.T.,et al. The seasonal cycle of ocean-atmosphere CO2 flux in Ryder Bay, west Antarctic Peninsula[J]. Geophysical Research Letters,2015-01-01,42(8).