| Title: | Satellite Data for Atmospheric Monitoring at the Pierre Auger Observatory |
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| Authors: | ID Puyleart, A. (Author)
ID Filipčič, Andrej (Author)
ID Lundquist, Jon Paul (Author)
ID Stanič, Samo (Author)
ID Vorobiov, Serguei (Author)
ID Zavrtanik, Danilo (Author)
ID Zavrtanik, Marko (Author)
ID Zehrer, Lukas (Author), et al. |
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| Files: |  ICRC2021_235.pdf (2,92 MB)
MD5: A49181B05330C5BBC81E6E4696D5A479
 https://pos.sissa.it/395/235/
https://pos.sissa.it/395/235/pdf
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Atmospheric monitoring over the 3000 km^2 of the Pierre Auger Observatory can be supplemented by satellite data. Methods for night-time cloud detection and aerosol cross-checking were created using the GOES-16 and Aeolus satellites, respectively. The geostationary GOES-16 satellite provides a 100% up-time view of the cloud cover over the observatory. GOES-13 was used until the end of 2017 for cloud monitoring, but with its retirement a method based on GOES-16 data was developed. The GOES-16 cloud detection method matches the observatory’s vertical laser cloud detection method at a rate of ∼90%. The Aeolus satellite crosses the Pierre Auger Observatory several times throughout the year firing UV-laser shots. The laser beams leave a track of scattered light in the atmosphere that can be observed by the light sensors of the observatory fluorescence telescopes. Using a parametric model of the aerosol concentration, the laser shots can be reconstructed with different combinations of the aerosol parameters. A minimization procedure then yields the parameter set that best describes the aerosol attenuation. Furthermore, the possibility of studying horizontal homogeneity of aerosols across the array is being investigated. |
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| Keywords: | Pierre Auger Observatory, indirect detection, fluorescence detection, ultra-high energy, cosmic rays, atmospheric monitoring, satellite monitoring, cloud detection, aerosols, UV laser shots |
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| Year of publishing: | 2022 |
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| PID: | 20.500.12556/RUNG-8538  |
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| COBISS.SI-ID: | 167052547 |
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| DOI: | 10.22323/1.395.0235 |
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| NUK URN: | URN:SI:UNG:REP:ZWL4ERQJ |
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| Publication date in RUNG: | 04.10.2023 |
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| Views: | 773 |
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| Downloads: | 6 |
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