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

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

Izvornik
Monthly Notices of the Royal Astronomical Society (0035-8711) 515 (2022), 3; 4520-4550

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
MAGIC – LIDAR – ORM – La Palma – Site Characterization – Calima

Sažetak
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 analyze 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 scale heights 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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Interdisciplinarne prirodne znanosti, Interdisciplinarne tehničke znanosti

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