Elemental analysis of aerosols collected at the Pierre Auger Cosmic Ray Observatory with PIXE technique complemented with SEM/EDX

Micheletti, M. I.; Murruni, Leonardo; Debray, M. E.; Rosenbusch, M.; Graf, Mónica; Cadena, G. Ávila; Vitale, Primo F. Gómez; Davidson, J.; Somacal, H.

doi:10.1016/j.nimb.2012.07.022

Cited by 19 publications

(11 citation statements)

References 22 publications

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“…During clear conditions, the air masses come mainly from the Pacific Ocean as already observed in Allen et al (2011). For hazy conditions, these air masses travel principally through continental areas during the previous 48 h. Following the conclusion of a chemical aerosol analysis performed at the Auger site by Micheletti et al (2012), NaCl crystals are detected in aerosol samplings during Austral winter, the period with mostly clear conditions and trajectories pointing back to the Pacific Ocean. Thus, these NaCl crystals could come from the Pacific Ocean, even if we cannot exclude another main origin as salt flats as main origin.…”

Section: Interpretation Of Aerosol Measurements Using Backward Trajecmentioning

confidence: 58%

“…Snow is another phenomenon that has to be taken into account here. As explained in Micheletti et al (2012), even though snowfalls are quite rare during winter in this region, the low temperatures conserve the snow on ground for long periods. An aerosol source (soil) blocked by snow, combined with air masses coming from the Pacific Ocean, is probably the main cause for these clear nights observed in winter at the Pierre Auger Observatory.…”

Section: Interpretation Of Aerosol Measurements Using Backward Trajecmentioning

confidence: 88%

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Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America

Aab

Abreu

Aglietta

et al. 2014

Atmospheric Research

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Section: Interpretation Of Aerosol Measurements Using Backward Trajecmentioning

confidence: 58%

Section: Interpretation Of Aerosol Measurements Using Backward Trajecmentioning

confidence: 88%

Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America

Aab

Abreu

Aglietta

et al. 2014

Atmospheric Research

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“…To our knowledge, aerosol sampling has been operated only at the Pierre Auger Observatory during one half a year where aerosols have been collected using filters. Then PIXE and SEM/EDX techniques have been applied in laboratory to get the chemical composition of aerosols [173]. Aerosol sampling have continued one year later using this time an aerosol spectrometer to estimate precisely the aerosol size distribution [174].…”

Section: Aerosol Sampling Techniques: Mass Concentration Sizementioning

confidence: 99%

Atmospheric effects in astroparticle physics experiments and the challenge of ever greater precision in measurements

Louedec¹

2015

Astroparticle Physics

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27 pages, 8 figures, review paper, submitted to Astroparticle PhysicsAstroparticle physics and cosmology allow us to scan the universe through multiple messengers. It is the combination of these probes that improves our understanding of the universe, both in its composition and its dynamics. Unlike other areas in science, research in astroparticle physics has a real originality in detection techniques, in infrastructure locations, and in the observed physical phenomenon that is not created directly by humans. It is these features that make the minimisation of statistical and systematic errors a perpetual challenge. In all these projects, the environment is turned into a detector medium or a target. The atmosphere is probably the environment component the most common in astroparticle physics and requires a continuous monitoring of its properties to minimise as much as possible the systematic uncertainties associated. This paper introduces the different atmospheric effects to take into account in astroparticle physics measurements and provides a non-exhaustive list of techniques and instruments to monitor the different elements composing the atmosphere. A discussion on the close link between astroparticle physics and Earth sciences ends this paper

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“…8 (left)) provided with polycarbonate membrane filters was used to separate fine size particles PM 2.5 (i.e. with an aerodynamic 1 diameter d ≤ 2.5 µm) and coarse particles PM 10 (d ≤ 10 µm) [24]. The sampling period was one day, beginning at 12:00 a.m. and ending at 12:00 a.m.…”

Section: Aerosol Sampling Measurementsmentioning

confidence: 99%

Atmospheric aerosols at the Pierre Auger Observatory and environmental implications

Louedec

Losno

2012

Eur. Phys. J. Plus

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The Pierre Auger Observatory detects the highest energy cosmic rays. Calorimetric measurements of extensive air showers induced by cosmic rays are performed with a fluorescence detector. Thus, one of the main challenges is the atmospheric monitoring, especially for aerosols in suspension in the atmosphere. Several methods are described which have been developed to measure the aerosol optical depth profile and aerosol phase function, using lasers and other light sources as recorded by the fluorescence detector. The origin of atmospheric aerosols traveling through the Auger site is also presented, highlighting the effect of surrounding areas to atmospheric properties. In the aim to extend the Pierre Auger Observatory to an atmospheric research platform, a discussion about a collaborative project is presented. Key words. Pierre Auger Observatory -atmosphere -aerosol -Mie scattering -air mass -phytoplankton PACS. 95.85.Ry cosmic rays -95.55.Cs ground-based ultraviolet, optical and infrared telescopes -92.60.e atmospherics -92.20.Bk aerosols -92.60.-e properties and dynamics of the atmosphere a

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Elemental analysis of aerosols collected at the Pierre Auger Cosmic Ray Observatory with PIXE technique complemented with SEM/EDX

Cited by 19 publications

References 22 publications

Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America

Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America

Atmospheric effects in astroparticle physics experiments and the challenge of ever greater precision in measurements

Atmospheric aerosols at the Pierre Auger Observatory and environmental implications

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