Temporal Variations in Depolarization Ratios during Sunset Period at a Tropical Rural Site in India

This paper presents a focused examination of depolarization ratio observations during the sunset period at the Gadanki rural site in India (13.45°N, 79.18°E). The study delves into the temporal dynamics of depolarization ratios and their implications for understanding atmospheric moisture content in tropical rural regions. Utilizing polarization lidar observations, a case study is presented, with a specific emphasis on the diurnal variations in depolarization ratios. The depolarization ratio, a valuable indicator of atmospheric properties, exhibits intriguing behaviors during the sunset period, reflecting changes in water vapor concentration. Of particular significance is the marked reduction in the depolarization ratio observed during sunset, suggesting a notable increase in atmospheric water vapor. These findings highlight the connection between diurnal atmospheric processes and the presence of moisture, offering valuable insights for weather forecasting, climate research, and environmental monitoring in tropical rural environments. This study contributes to a nuanced understanding of local atmospheric phenomena, with a focus on the temporal dynamics of depolarization ratios during the sunset period, providing critical information for researchers and practitioners in related fields.