DOI: 10.1029/2018JD028276
Scopus记录号: 2-s2.0-85052967015
论文题名: Role of SST Patterns on Surface Wind Modulation of a Heavy Midlatitude Precipitation Event
作者: Meroni A.N. ; Parodi A. ; Pasquero C.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 17 起始页码: 9081
结束页码: 9096
语种: 英语
英文关键词: air-sea interactions
; heavy precipitation
; marine atmospheric boundary layer
; mesoscale convective systems
; numerical simulations
英文摘要: The mechanisms controlling the influence of the sea surface temperature (SST) structure on the surface winds are studied by means of numerical simulations run with a nonhydrostatic fully compressible state-of-the-art numerical model in a realistic midlatitudes setup, leading to the 9 October 2014 Genoa heavy rainfall event. Starting from a simulation with high-resolution submesoscale eddy-permitting SST field, the surface temperature boundary conditions are changed to enhance, reduce, or smooth the SST gradient. It is found that the marine atmospheric boundary layer responds to the submesoscale SST forcing structures over time scales of the order of hours. In particular, through the downward momentum mixing mechanism, the presence of SST horizontal gradients impacts the spatial structure of the surface wind convergence, which can displace the convective heavy rain bands that develop over the sea. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113165
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth and Environmental Sciences, University of Milan-Bicocca, Milan, Italy; CIMA Research Foundation, Savona, Italy
Recommended Citation:
Meroni A.N.,Parodi A.,Pasquero C.. Role of SST Patterns on Surface Wind Modulation of a Heavy Midlatitude Precipitation Event[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(17)