Atmospheric Parameters and Their Influences on Precipitating Cloud Systems Over East Coastal Andhra Pradesh: A Decadal Analysis (2014–2023)

This research provides a detailed understanding of the characteristics and processes governing precipitating cloud systems that are crucial for rainfall over the East Coastal districts of Andhra Pradesh (ECAP). By analyzing a diverse dataset including gridded precipitaion, temperature, pressure, and wind speed data from 2014 to 2023, the study seeks to uncover the complex interplay between atmospheric conditions, cloud microphysics, and precipitation development in this important region. In this study, we utilized multi-source data on aerosol, cloud properties, precipitation, and meteorological factors to investigate the impact of aerosols on precipitation efficiency (PE) over ECAP, where the differences between SW and NE monsoon were prominent. Because te ECAP, strategically located along the Bay of Bengal, receives rainfall from both the Southwest and Northeast Monsoons, and is significantly impacted by cyclonic disturbances. This paper investigates the spatiotemporal variability of rainfall, identifies dominant cloud types, and elucidates the atmospheric dynamics and thermodynamic structures conducive to heavy precipitation events. Furthermore, it explores the potential influence of aerosol-cloud interactions and other microphysical processes on precipitation efficiency. The findings contribute to a deeper understanding of ECAP’s rainfall climatology, offering insights vital for improved hydrological forecasting, water resource management, and disaster preparedness in the face of a changing climate.