%0 Journal Article
%T Analysis of the Causes of a Low Cloud and Low Visibility Weather at Cangyuan Washan Airport
%A Yahan Zhong
%A Wancheng Zhang
%A Juzhang Ren
%A Man Wang
%A Yun Tao
%J Advances in Aerospace Science and Technology
%P 11-20
%D 2023
%I 
%R 10.4236/aast.2023.82002
%X At 11:00 am on August 5, 2017, Cangyuan Washan Airport experienced low
cloud and low visibility weather, accompanied by aircraft turbulence, which
affected the normal operation of flights, which was closely related to the
meteorological conditions at that time. Using the hourly reanalysis data of the
European Centre for Medium-range Weather Forecast (ECMWF) Reanalysis 5 (ERA5),
including Geopotential height, temperature, precipitation, wind field, specific
humidity, vorticity and other elements, with a spatial resolution of 0.25กใ&nbsp;<span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">กม</span></span></span><span><span><span style=\"font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\"> 0.25กใ, this paper focuses on the horizontal
distribution and vertical configuration of various physical quantities before
and after the occurrence of low cloud and low visibility weather at the
airport. The results indicate that the main influencing system of this low
cloud and low visibility weather is the westward tropical depression. Before
the occurrence of low cloud and low visibility weather, low-level water vapor
converges and is accompanied by pre</span><span style=\"font-family:Verdana;\">cipitation.
The temperature decreases with precipitation, the near</span></span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">-</span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">surfac</span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\">e wind
direction changes, and the wind speed decreases.</span></span></span>
%K Low Clouds
%K Low Visibility
%K Vertical Velocity
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=126427