DOI: 10.1007/s00382-017-3695-9
Scopus记录号: 2-s2.0-85018287290
论文题名: Sensitivity of the overturning circulation of the Baltic Sea to climate change, a numerical experiment
作者: Hordoir R. ; Höglund A. ; Pemberton P. ; Schimanke S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 50, 期: 2018-03-04 起始页码: 1425
结束页码: 1437
语种: 英语
英文关键词: Baltic Sea
; Climate change
; Overturning circulation
; Thermal stratification
Scopus关键词: buoyancy forcing
; climate change
; mixed layer
; numerical method
; overturn
; sensitivity analysis
; stratification
; thermocline
; Atlantic Ocean
; Baltic Sea
英文摘要: An ocean model covering the Baltic Sea area is forced by several climate scenarios for a period extending from 1961 to 2100. The Baltic Sea overturning circulation is then analyzed. The analysis shows that this circulation decreases between the end of the 20th century and the end of the 21st century, and that the decrease is amplified in the case of the strongest greenhouse gas emission scenarios, which corresponds with the highest warming cases. The reasons behind this decrease in overturning circulation are investigated. A strong increase of thermal stratification is noticed at the level of the Baltic Sea mixed layer. Based on buoyancy flux considerations, we demonstrate that the decrease in overturning circulation coincides with the increase of thermal stratification. Evidence shows that the underlying process is linked to a smaller erosion of the halocline due to a higher shielding, itself linked with a stronger and longer seasonal thermocline. This theory works if surface wind mixing is not taken into account directly in the computation of buoyancy fluxes. © 2017, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109447
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: SMHI, Norrköping, 601 76, Sweden
Recommended Citation:
Hordoir R.,Höglund A.,Pemberton P.,et al. Sensitivity of the overturning circulation of the Baltic Sea to climate change, a numerical experiment[J]. Climate Dynamics,2018-01-01,50(2018-03-04)