Canadian smoke and cirrus clouds over Leipzig (IMAGE)
Caption
Canadian smoke and cirrus clouds over Leipzig - observed with the fluorescence lidar MARTHA at TROPOS during the night of 29/30 May 2023. The different evaluation methods show that thin smoke layers only become clearly visible with the fluorescence method: a) The classical elastic lidar signal at a wavelength of 1064 nanometres hardly reveals the aerosol layer at an altitude of 12 km (top graph). b) The measurement of the fluorescence component at a wavelength of 466 nanometres backscattered laser light, on the other hand, shows that there was a layer of smoke above the clouds at an altitude of about 11-12 km (centre graph). C) The evaluation of the so-called fluorescence capacity (G_F) makes clear that at the beginning of the measurement until about midnight (= 22:00 UTC) the upper part of the clouds was partly within the smoke layer.
Credit
Benedikt Gast, TROPOS
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Credit must be given to the creator. Adaptations must be shared under the same terms.
License
CC BY-SA