Enhancing Atmospheric Monitoring: A Novel Approach to Determining Relative Lidar Ratio Using Combined Lidar and Camera Data

^(a) Pukyong National University, Division of Earth Environmental System Science, Busan, South Korea
^(b) Hanbat National University, School of Basic Science, Daejeon, South Korea Lead Author e-mail address: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published online: 9 April 2026

Abstract

In this study, we explore an innovative approach to calculate Lidar ratios, an important element of atmospheric science that is generally assumed to be constant. By integrating 532nm laser lidar with camera data, we can derive extinction coefficients from Lidar and backscatter signals from laser images captured by the camera to calculate relative Lidar ratios under different atmospheric conditions. The relative Lidar ratio here is not the actual Lidar ratio because it is obtained from the backscatter signal and not the backscatter coefficient. Our method also overcomes the near-field limitation of Lidar by using camera-derived pixel values to restore the near-field extinction coefficient. These advances present more accurate techniques for determining atmospheric properties and demonstrate the potential of combining Lidar and camera data in environmental monitoring.