Doctoral Thesis / Dissertation from the year 2008 in the subject Physics - Astronomy, University of Kerala (Space Physics Laboratory, Vikram Sarabhai Space Centre - Indian Space Research Organization, Dept. of Space, Govt. of INdia), course: Physics - Atmospheric Sciences, language: English, abstract: Troposphere is the lowest layer of the atmosphere, where the temperaturedecreases with increasing altitude. The prime objective of this study is thecharacterization of various atmospheric processes ranging from a few kilometers to afew hundreds of kilometers taking place within this layer over the southern part ofIndian sub-continent with the aid of numerical atmospheric models and observationaldata. With a view to broadening our understanding on some of the interestingatmospheric events such as Sea/Land Breeze Circulation (SLBC), Mountain Waves,and Thunderstorms, hitherto not attempted very much in an analytical and quantitativesense by many researchers the world over, the contents of this thesis titled Studies onLower Atmospheric Processes over South India using Numerical AtmosphericModels and Experiments are organized into seven chapters.