A study on the characteristics of fog over Agartala airport

Abstract

Fog isconsidered as an important aviation hazard. The characteristics of fog at Agartala Airport during 2011-2020 have been analysed. The fog season generally starts from November and lasts till February, with its highest intensity during December and January. The frequency of dense fog is also relatively higher in these two months. The onset of fog mostly takes place between 0001-0100 UTC. The duration of fog is found to be short in November, however frequency of late dispersion of fog is higher in December and January. The frequency of different ranges of lowest visibility associated with fog has also been studied and found that in most of the cases, the lowest visibility occurs between 0001-0100 UTC. The study also shows that the frequency of fog over Agartala in November-February has increased as compared to the climatological mean of 1981-2010.