Fog Formation in Cold Season in Ji’nan, China: Case Analyses with Application of HYSPLIT Model

<table>Air-mass back trajectories and the changes in height indicated by pressure for the four fog events occurring in Ji’nan during the period from March 2012 to February 2014.</table>

Advances in Meteorology

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Figure 2

Figure 2: Fog Formation in Cold Season in Ji’nan, China: Case Analyses with Application of HYSPLIT Model 