TITLE:
Analysis of Meteorological Conditions for a Sea Fog Process in 2016
AUTHORS:
Xiaomeng Shi, Xueying Liu, Yu Gu, Qian Wang
KEYWORDS:
Qingdao Offshore, Heavy Fog, WRF, Satellite Remote Sensing, Dual-Channel
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.11 No.3,
May
31,
2021
ABSTRACT: The
visibility characteristics and meteorological conditions of a sea fog process
on 27th February, 2016 are analyzed and the heavy fog process is
simulated by the Weather Research and Forecasting (WRF) model in this paper.
The forecast results show that the visibility in Qingdao coastal area is light
fog on the night of the 26th. In the WRF simulation, it can be
observed from the sea-level pressure that the wind direction of Qingdao and the
coastal area turned southerly with the eastward movement of the low pressure
system on surface from 1200 UTC to 1800 UTC on the 26th. A large
amount of water vapor brought by easterly and southerly wind provides
sufficient water vapor conditions for the formation and development of the sea
fog. At 975 hPa, there is a strong warm tongue over Shandong Peninsula at 0600
UTC on the 26th, while the
offshore is affected by the cold tongue, where the horizontal temperature
gradient is large and there is a strong baroclinicity. At 850 hPa, there is a
weak warm ridge over Qingdao at 1200 UTC on the 26th, which means
that it is an inversion layer, which is conducive to the maintenance of fog.