DOI: 10.1007/s00382-011-1085-2
Scopus记录号: 2-s2.0-84856287724
论文题名: Sensitivity of the Humboldt Current system to global warming: A downscaling experiment of the IPSL-CM4 model
作者: Echevin V. ; Goubanova K. ; Belmadani A. ; Dewitte B.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-03-04 起始页码: 761
结束页码: 774
语种: 英语
英文关键词: Coastal upwelling
; Mesoscale dynamics
; Peru-Chile upwelling system
; Regional climate change
英文摘要: The impact of climate warming on the seasonal variability of the Humboldt Current system ocean dynamics is investigated. The IPSL-CM4 large scale ocean circulation resulting from two contrasted climate scenarios, the so-called Preindustrial and quadrupling CO2, are downscaled using an eddy-resolving regional ocean circulation model. The intense surface heating by the atmosphere in the quadrupling CO2 scenario leads to a strong increase of the surface density stratification, a thinner coastal jet, an enhanced Peru-Chile undercurrent, and an intensification of nearshore turbulence. Upwelling rates respond quasi-linearly to the change in wind stress associated with anthropogenic forcing, and show a moderate decrease in summer off Peru and a strong increase off Chile. Results from sensitivity experiments show that a 50% wind stress increase does not compensate for the surface warming resulting from heat flux forcing and that the associated mesoscale turbulence increase is a robust feature. © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55372
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: LOCEAN, Paris, France; LEGOS, Toulouse, France; IMARPE, IGP, LEGOS, Lima, Peru; IPRC, International Pacific Research Center, SOEST, University of Hawaii at Manoa, Honolulu, HI, United States
Recommended Citation:
Echevin V.,Goubanova K.,Belmadani A.,et al. Sensitivity of the Humboldt Current system to global warming: A downscaling experiment of the IPSL-CM4 model[J]. Climate Dynamics,2012-01-01,38(2017-03-04)