Characterizing the aerosol atmosphere above the Observatorio del Roque de los 
Muchachos by analysing seven years of data taken with an GaAsP HPD-readout, 
absolutely calibrated elastic LIDAR

Fruck, Christian; Gaug, Markus; Hahn, Alexander; Acciari, Victor; Besenrieder, Jürgen; Prester, Dijana Dominis; Dorner, Daniela; Fink, David; Font, Lluı́s; Mićanović, Saša; Mirzoyan, Razmik; Müller, Dominik; Pavletić, Lovro; Schmuckermaier, Felix; Will, Martin

doi:10.1093/mnras/stac1563

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Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analysing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR

MPS-Authors

Fruck, Christian
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gaug, Markus
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hahn, Alexander
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Acciari, Victor
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Besenrieder, Jürgen
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Prester, Dijana Dominis
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dorner, Daniela
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fink, David
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Font, Lluı́s
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mićanović, Saša
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mirzoyan, Razmik
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Müller, Dominik
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pavletić, Lovro
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schmuckermaier, Felix
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Will, Martin
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Fruck, C., Gaug, M., Hahn, A., Acciari, V., Besenrieder, J., Prester, D. D., et al. (2022). Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analysing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR. Monthly Notices of the Royal Astronomical Society, 515, 4520. doi:10.1093/mnras/stac1563.

Cite as: https://hdl.handle.net/21.11116/0000-000C-B5B3-D

Abstract

We present a new elastic LIDAR concept, based on a bi-axially mounted Nd:YAG laser and a telescope with HPD readout, combined with fast FADC signal digitization and offline pulse analysis. The LIDAR return signals have been extensively quality checked and absolutely calibrated. We analyse seven years of quasi-continuous LIDAR data taken during those nights when the MAGIC telescopes were operating. Characterization of the nocturnal ground layer yields zenith and azimuth angle dependent aerosol extinction scaleheights for clear nights. We derive aerosol transmission statistics for light emitted from various altitudes throughout the year and separated by seasons. We find further seasonal dependencies of cloud base and top altitudes, but none for the LIDAR ratios of clouds. Finally, the night sky background light is characterized using the LIDAR photon backgrounds.