ULICE

Ultraviolet LIdar for Canopy Experiment

ULICE is a lidar initially developed for the study of forests from aircraft. It operates in the UV with a large ground footprint. ULICE was also used on board the ATR-42 to study aerosols over the Gulf of Guinea during DACCIWA (Dynamics-aerosol-chemistry-cloud interactions in West Africa) in July 2016 and to study clouds during ISLAS in March 2022.

Autonomous payload (~80 kg) implemented on an Ultra-Light Aircraft, including the ULICE lidar for canopy studies.
Photos for the 7 studied sites: coastal (CT), Tamarind (TM), Cryptomeria (CM), Bélouve (BF), and Mare-Longue (ML-150, 250 and 550) sites of Reunion island.  Examples of continuous lidar measurements performed over each site are also given.
Mean (dot) and standard deviations (line segments) of forest lidar-derived leaf area index (LAI) against the canopy height (CH) derived from ULICE for the 7 sites: coastal (CT), Tamarind (TM), Cryptomeria (CM), Bélouve (BF), and Mare-Longue (ML-150, 250 and 550).
ULICE on board ATR-42 during DACCIWA or ISLAS
ULICE-derive raw linear volume depolarisation ratio above the Gulf of Guinea during DACCIWA in July 2016.
Apparent backscatter coefficient (left) and raw linear volume depolarized ratio (right) derived from ULICE measurements during ISLA (flight on 22 March 2022). The measurements highlight the structures in the ice clouds.

References

Shang, X. and Chazette, P. (2015), End-to-End Simulation for a Forest-Dedicated Full-Waveform Lidar Onboard a Satellite Initialized from Airborne Ultraviolet Lidar Experiments, Remote Sensing, 7(5), 5222-5255; doi:10.3390/rs70505222.

Shang, X., Chazette, P., Totems, J., Dieudonné, E., Hamonou, E., Duflot, V., Strasberg, D., Flores, O., Fournel, J., Tulet, P.: Tropical Forests of Réunion Island Classified from Airborne Full-Waveform LiDAR Measurements. Remote Sens. 8, 43. doi:10.3390/rs8010043, 2016.

Flamant, C., Deroubaix, A., Chazette, P., Brito, J., Gaetani, M., Knippertz, P., Fink, A. H., de Coetlogon, G., Menut, L., Colomb, A., Denjean, C., Meynadier, R., Rosenberg, P., Dupuy, R., Dominutti, P., Duplissy, J., Bourrianne, T., Schwarzenboeck, A., Ramonet, M., and Totems, J.: Aerosol distribution in the northern Gulf of Guinea: local anthropogenic sources, long-range transport, and the role of coastal shallow circulations, Atmos. Chem. Phys., 18, 12363-12389, https://doi.org/10.5194/acp-18-12363-2018, 2018.

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