globalchange  > 科学计划与规划
DOI: 10.1002/2016GL067723
The atmospheric frontal response to SST perturbations in the Gulf Stream region
Author: Parfitt R.; Czaja A.; Minobe S.; Kuwano-Yoshida A.
Source Publication: Geophysical Research Letters
ISSN: 0094-9280
EISSN: 1944-9011
Publishing Year: 2016
Volume: 43, Issue:5
pages begin: 2299
pages end: 2306
Language: 英语
Keyword: air-sea interaction ; atmospheric fronts ; midlatitude climate variability ; oceanic frontal zones
Scopus Keyword: Atmospheric temperature ; Climatology ; Heat flux ; Ocean currents ; Surface waters ; Air sea interactions ; Atmospheric fronts ; Climate variability ; Frontal zones ; General circulation model ; Gulf Stream region ; Sea Surface Temperature gradients ; Thermal interaction ; Oceanography
English Abstract: The link between sea surface temperature (SST) gradients and atmospheric fronts is explored in a general circulation model across the Gulf Stream (GS) region from December to February 1981-2000. Two model experiments are analyzed, one with a realistic control SST distribution and one with a spatially smoothed SST distribution. The analysis shows a noticeable change in regional atmospheric frontal frequency between the two experiments (up to 30%), with the distribution of change exhibiting a clear imprint of the GS SST front. Further analysis of the surface sensible heat flux gradient across cold fronts reveals the pattern of change to be mediated by a thermal interaction between the oceanic and atmospheric fronts ("thermal damping and strengthening"). These results not only emphasize the significance of the GS SST gradient for storm development in the North Atlantic but also highlight the importance of resolution in assessing the role of frontal air-sea interaction in midlatitude climate variability. © 2016. The Authors.
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Document Type: 期刊论文
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Affiliation: Department of Physics, Imperial College London, London, United Kingdom

Recommended Citation:
Parfitt R.,Czaja A.,Minobe S.,et al. The atmospheric frontal response to SST perturbations in the Gulf Stream region[J]. Geophysical Research Letters,2016-01-01,43(5).
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