Fog Hazards in Punjab (Pakistan): Forecasting Techniques of Fog - Muhammad Aslam - Books - LAP LAMBERT Academic Publishing - 9783659209932 - September 7, 2012
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Fog Hazards in Punjab (Pakistan): Forecasting Techniques of Fog

Muhammad Aslam

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Fog Hazards in Punjab (Pakistan): Forecasting Techniques of Fog

Fog is a natural phenomenon and is formed when water vapours in the air near the surface begin to condense into liquid water. Fog occurs over Punjab (Pakistan), during winter months of November, December and January. The aim of this study was to investigate the dense fog events and also to find the reasons of this prolonged fog. This prolonged/unusual fog affects the air and road traffic badly. Many accidents take place because of poor visibility and many people lose their lives. Using 30-year (1976-2005) real meteorological data of 10-weather stations, four dense fog years were investigated. Daily, ten-days and monthly temperature and moisture data of these four years showed significant changes during the fog events. It is observed that day time temperature decreases and night time temperature increases during fog events but the mean temperature remains below 15.5 degrees Celsius, mean relative humidity examined more than 80% for the north Punjab and more than 70% for the south Punjab and throughout the fog period,daily saturatain vapour pressure deficit found below 1hpa and with these conditions, dense fog events could be predicted precisely for next 24-48 hours.

Media Books     Paperback Book   (Book with soft cover and glued back)
Released September 7, 2012
ISBN13 9783659209932
Publishers LAP LAMBERT Academic Publishing
Pages 120
Dimensions 150 × 7 × 226 mm   ·   185 g
Language English  

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