DOI: 10.1029/2017JD028088
Scopus记录号: 2-s2.0-85047598472
论文题名: Atmospheric Conditions for Advection-Radiation Fog Over the Western Yellow Sea
作者: Yang L. ; Liu J.-W. ; Ren Z.-P. ; Xie S.-P. ; Zhang S.-P. ; Gao S.-H.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 10 起始页码: 5455
结束页码: 5468
语种: 英语
英文关键词: advection fog
; boundary layer
; longwave radiative cooling
; Yellow Sea
英文摘要: Advection fog occurs usually when warm and moist air flows over cold sea surface. It is occasionally reported that the fog air temperature falls below sea surface temperature (called here the sea fog with sea surface heating [ssH]) due to longwave radiation cooling at fog top. Using 8-year buoy observations, this study reveals that about 33% of the time, the advection fog is with ssH in the western Yellow Sea. By synthesizing long-term observations from meteorological stations, atmospheric soundings, and offshore buoys, this study further investigates the marine atmospheric boundary layer (MABL) structure and atmospheric circulation associated with the ssH sea fog. Composite analysis shows that a local anomalous high pressure favors widespread formation of the ssH sea fog. The subsidence in the high pressure intensifies the thermal and moist stratification between the MABL and free atmosphere through adiabatic warming. The dry air above helps cool the fog layer by enhancing the longwave radiative cooling at the fog top and the vertical mixing beneath, causing air temperature to drop below sea surface temperature. The ratio of sea fog with ssH to total sea fog decreases from spring to summer as the descending motion and MABL stratification both weaken. This study highlights the importance of longwave radiative cooling at the advection fog top and suggests a way to improve sea fog forecast in the Yellow 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/113859
Appears in Collections: 气候减缓与适应
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作者单位: Physical Oceanography Laboratory, Qingdao Collaborative Innovation Center of Marine Science and Technology, and Ocean–Atmosphere Interaction and Climate Laboratory, Ocean University of China, Qingdao, China; Qingdao Meteorological Bureau, Qingdao Engineering Technology Research Center for Meteorological Disaster Prevention, Qingdao, China; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States
Recommended Citation:
Yang L.,Liu J.-W.,Ren Z.-P.,et al. Atmospheric Conditions for Advection-Radiation Fog Over the Western Yellow Sea[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(10)