MICROSTRUCTURES AND TEMPORAL VARIATION CHARACTERISTICS DURING A SEA FOG EVENT ALONG THE WEST
COAST OF THE TAIWAN STRAIT |
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| Authors: | ZHANG Yue FAN Shu-xian ZHANG Shu-ting and WEI Jin-cheng |
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| Institution: | 1. Key Laboratory of Meteorological Disaster, Ministry of Education / Joint International
Research Laboratory of Climate and Environment Change / Collaborative Innovation Center on
Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science
and Technology, Nanjing 210044 China; 2. Chongqing institute of meteorological sciences,
Chongqing 401147 China |
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| Abstract: | Synoptic systems and microphysical properties associated with a sea fog event are
analyzed based on the measurements of visibility, meteorological elements and fog droplet
spectrum from a comprehensive field campaign in Xiamen, Fujian province during spring 2013.
The influences of meteorological elements on the microstructures of the sea fog are also
discussed. The results showed that the wind speed and direction changed suddenly during the
intermittent and disperse phases of the sea fog. Liquid water content, number concentration
and average diameter varied obviously in the development, mature and disperse phases of the
sea fog. The burst re-enforcement of sea fog was accompanied by explosive broadening of fog
droplet spectrum; average diameter, number concentration and liquid water content increased
sharply; and background meteorological conditions also changed significantly. The
microstructures fluctuated intensely due to changes in turbulence, radiation and
meteorological conditions at different stages, including nucleation, condensation,
coagulation, and evaporation, as well as the discontinuity of spatial distribution of
droplets. |
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| Keywords: | atmospheric physics sea fog meteorological elements microstructure temporal variation |
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