Rajahmundry Fog

By Gp Capt (Dr) B Nandi 1.Rajahmundry is another place when morning poor visibility is common during winter. to understand occurrences we need to see the topography first. 2.Rajahmundry airport is situated East of Godavari river by about 6-7km distance and about 60 km West of Bay of Bengal. These are two major sources of…

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Ageostrphic Oscillation and Nocturnal Jet

By Gp Capt (Dr) B Nandi Simplified horizontal/ two dimensional motion can be described by the following equation. Where V is the wind velocity, f Coriolis parameter, ρ air density, P pressure. k vertical unit vector. First term is acceleration of air parcel, second term is Coriolis force and third term is pressure gradient force….

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Strong wind at Leh explained

By Gp Capt (Dr) B Nandi Leh is situated in Indus valley in Ladhak, a difficult terrain to access by road. Though there are two highways one from Srinagar and other from Manali. Air way is boon for Leh. Kushok Bakula Rinpoche Airport is a public use airport located 2 km southwest of Leh, a…

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Study of few days METAR of Dehradun

By Gp Capt (Dr) B Nandi METARs of Dehradun from 11OCT2023 to 16OCT2023 were undertaken for the study to demonstrate how useful it is to understand the atmospheric processes. Following are the METARs: 2. DEWPOINT JUMP On 11OCT2023, in half an hour (1200Z to1230Z) 3°C jump of dewpoint temperature from 15°C to 18°C has taken…

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Vijayawada Fog

By Gp Capt (Dr) B Nandi Quite frequently Vijayawada experiences fog during winter season. I like to explain the occurrence as understood by me. Going to elaborate with two days data. We start the journey from the location and its surrounding. 2. Location Vijayawada airport is situated NE of Krishna river by about 10km distance…

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