New developments in aerosol measurements using stellar photometry

0519527 - FZÚ 2020 RIV FR eng C - Conference Paper (international conference)
Ebr, Jan - Juryšek, Jakub - Prouza, Michael - Blažek, Jiří - Trávníček, Petr - Mandát, Dušan - Pech, Miroslav - Janeček, Petr - Karpov, Sergey - Cunniffe, Ronan - Mašek, Martin - Eliášek, Jiří - Jelínek, Martin - Ebrová, I.
New developments in aerosol measurements using stellar photometry.
EPJ Web of Conferences. Vol. 197. Les Ulis: EDP Sciences, 2019 - (Valore, L.; Colalillo, R.; Guarino, F.), s. 1-4, č. článku 02007. E-ISSN 2100-014X.
[International Workshop on Atmospheric Monitoring for High Energy Astroparticle Detectors (AtmoHEAD). Anacapri (IT), 24.09.2018-26.09.2018]
R&D Projects: GA MŠMT EF15_003/0000437; GA MŠMT EF16_013/0001403; GA MŠMT LTT18004; GA MŠMT LM2015038; GA MŠMT EF16_013/0001402; GA MŠMT LTT17006; GA MŠMT LM2015046
Grant - others:OP VVV - CoGraDS(XE) CZ.02.1.01/0.0/0.0/15_003/0000437; OP VVV - CTAO-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001403; OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Institutional support: RVO:68378271 ; RVO:67985815
Keywords : photometry * atmospheric monitoring * Pierre Auger Observatory * telescope * Cherenkov telescope Array
OECD category: Particles and field physics; Astronomy (including astrophysics,space science) (ASU-R)

The idea of using stellar photometry for atmospheric monitoring for optical experiments in high-energy astrophysics is seemingly straightforward, but reaching high precision of the order of 0.01 in the determination of the vertical aerosol optical depth (VAOD) has proven difficult. Wide-field photometry over a large span of altitudes allows a fast determination of VAOD independently of the absolute calibration of the system, while providing this calibration as a useful by-product. Using several years of data taken by the FRAM (F/(Ph)otometric Robotic Atmospheric Monitor) telescope at the Pierre Auger Observatory in Argentina and about a year of data taken by a similar instrument deployed at the planned future Southern site of the Cherenkov Telescope Array in Chile, we have developed methods to improve the precision of this measurement technique towards and possibly beyond the 0.01 mark.
Permanent Link: http://hdl.handle.net/11104/0304650