Skip to main content

An improved lidar method for monitoring surface waters: experiments in the laboratory

Buy Article:

$60.90 plus tax (Refund Policy)


Abstract. Lidar monitoring of surface waters is usually applied to fluorescent substances like phytoplankton, yellow substances and oil. A lidar method is introduced which allows the measuring of the total attenuation coefficient at the laser wavelength considering also nonfluorescent substances besides fluorescent ones. Two signals are measured: first the total fluorescence lidar signal L, which is characterized by long path-lengths of the laser radiation in the water column, and second, the fluorescence F, which originates from the first layers immediately below the water surface. A simple experiment in the laboratory was performed using a nitrogen laser. Water samples containing algae and varying amounts of humic and ligninesulfonic acids were investigated. Synchronously the attenuation coefficients were measured. The F/L ratio yielded the total attenuation at the laser wavelength. Good correlations between the conventional and the lidar-derived attenuation coefficients were achieved described by squared correlation coefficients of R2 > 0.95. The F/L ratio seems to be a good tool in lidar monitoring of waters.

Document Type: Research Article


Publication date: July 20, 1997

More about this publication?

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more