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A method for Cloud Mapping in the Field of View of the Infra-Red Camera during the EUSO-SPB1 flight.

Bruno, A., Anzalone, A. and Vigorito, C., 2019. A method for Cloud Mapping in the Field of View of the Infra-Red Camera during the EUSO-SPB1 flight. In: ICRC2019: 36th International Cosmic Ray Conference, Madison, WI, U.S.A., 24 July-1 August 2019.

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PDF (arXiv preprint 1909.05917v1)
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EUSO-SPB1 was released on April 24th, 2017, from the NASA balloon launch site in Wanaka (New Zealand) and landed on the South Pacific Ocean on May 7th. The data collected by the instruments onboard the balloon were analyzed to search UV pulse signatures of UHECR (Ultra High Energy Cosmic Rays) air showers. Indirect measurements of UHECRs can be affected by cloud presence during nighttime, therefore it is crucial to know the meteorological conditions during the observation period of the detector. During the flight, the onboard EUSO-SPB1 UCIRC camera (University of Chicago Infra-Red Camera), acquired images in the field of view of the UV telescope. The available nighttime and daytime images include information on meteorological conditions of the atmosphere observed in two infra-red bands. The presence of clouds has been investigated employing a method developed to provide a dense cloudiness map for each available infra-red image. The final masks are intended to give pixel cloudiness information at the IR-camera pixel resolution that is nearly 4-times higher than the one of the UV-camera. In this work, cloudiness maps are obtained by using an expert system based on the analysis of different low-level image features. Furthermore, an image enhancement step was needed to be applied as a preprocessing step to deal with uncalibrated data.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:astro-ph.IM ; astro-ph.IM ; astro-ph.EP ; cs.CV ; cs.LG ; J.2
Group:Faculty of Media & Communication
ID Code:33742
Deposited By: Symplectic RT2
Deposited On:10 Mar 2020 12:02
Last Modified:14 Mar 2022 14:21


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