What question did this study set out to answer?

To develop a portable lidar system for quantifying chlorophyll-a in fresh surface waters and analyze its characteristics.

April 16, 2026

Chlorophyll-a Profiling in Fresh Surface Waters by Fluorescence-Raman Lidar

Key Points

To develop a portable lidar system for quantifying chlorophyll-a in fresh surface waters and analyze its characteristics.
Developed a portable fluorescence-Raman lidar system
Collected lidar observations of Chl-a concentrations
Examined relationships between biomass and Chl-a data
Achieved a strong positive correlation (R2 = 0.96) between lidar Chl-a data and fitted curve
Demonstrated the system's efficiency in monitoring chlorophyll-a levels
Showed significant impact of domestic effluents and agricultural runoff on Chl-a profiling

Abstract

We have developed a portable LD fluorescence-Raman lidar system providing quantified Chl-a profiles of Chlorella vulgaris. Based on the lidar observations and estimated Chl-a concentrations, we studied SCM characteristics at varying biomass concentrations. A positive linear relationship between the fitted curve and the lidar Chl-a data (R2 = 0.96) is observed, which enhances accuracy and efficiency in chlorophyll-a monitoring. The developed system showed significant importance in Chl-a profiling in fresh surface waters affected by domestic effluents, and agricultural runoff.

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