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2. INSTRUMENTATION 
Remote fluorescence measurements using the Swedish fluorescence lidar system were performed in two 
different modes [14]. In the spectrally resolved mode a full fluorescence spectrum is obtained in a selected 
remote point, while in the imaging mode spatially resolved data can be recorded in four selected 
wavelength bands simultaneously. The two systems are adopted to the 40 cm diameter optical receiving 
telescope of our mobile lidar system, a system primarily intended for air pollution analysis [15]. Fig. 1 
shows a scenario for remote fluorescence monitoring. 
Fig. 1. Remote fluorescence imaging of vegetation. 
The general lay-out of the fluorescence lidar system is shown in Fig. 2. 
Fig. 2. Set-up for remote recordings of fluorescence spectra and multi-colour fluorescence images of 
vegetation. Ar an excitation source a Raman cell pumped by a frequency tripled YAG laser was used. The 
output pulse energy was about 30 mJ. By using a flip-in mirror switching between the OMA system and 
the multi-colour imaging system was possible. An optical fibre bundle consisting of 7 fibres was used to 
couple the light into the spectrometer of the OMA system.