"The Atmospheric Boundary Layer over the oceanic surface is commonly referred to as the Marine Atmospheric Boundary Layer (MABL) and it can be considered as the turbulent region in the immediate vicinity of the oceanic surface. The structure and characteristics of the MABL and its interactions with the oceanic surface and the overlying free atmosphere are known mainly as a result of a synergistic combination of observational studies, numerical and laboratory simulations, and dimensional analysis. Our present knowledge and understanding of the MABL over various oceanic regions of the globe...

Troposphere is the lowest layer of the atmosphere, where the temperature decreases with increasing altitude. The prime objective of this dissertation is the characterization of various atmospheric processes ranging from a few kilometers to a few hundreds of kilometers taking place within this layer over the southern part of Indian sub-continent with the aid of numerical atmospheric models and observational data. With a view to broadening our understanding on some of the interesting atmospheric events such as Sea/Land Breeze Circulation (SLBC), Mountain Waves, and Thunderstorms, hitherto not...