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

The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main challenges is the monitoring of the atmosphere, both in terms of its state variables and its optical properties. The aim of this work is to a...

Descripción completa

Detalles Bibliográficos
Autores principales: Dova, María Teresa, Gómez Albarracín, Flavia Alejandra, Hansen, Patricia María, Jarne, Cecilia Gisele, Mariazzi, Analisa Gabriela, Moreno, Juan Cruz, Sciutto, Sergio Juan, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Física
Atmósfera
cosmic rays
aerosol
air masses
atmospheric effect
HYSPLIT
GDAS
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/75390
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-75390
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Atmósfera
cosmic rays
aerosol
air masses
atmospheric effect
HYSPLIT
GDAS
spellingShingle Ciencias Exactas
Física
Atmósfera
cosmic rays
aerosol
air masses
atmospheric effect
HYSPLIT
GDAS
Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
topic_facet Ciencias Exactas
Física
Atmósfera
cosmic rays
aerosol
air masses
atmospheric effect
HYSPLIT
GDAS
description The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main challenges is the monitoring of the atmosphere, both in terms of its state variables and its optical properties. The aim of this work is to analyse aerosol optical depth τa(z) values measured from 2004 to 2012 at the observatory, which is located in a remote and relatively unstudied area of Pampa Amarilla, Argentina. The aerosol optical depth is in average quite low – annual mean τa(3.5 km) ∼ 0.04 – and shows a seasonal trend with a winter minimum – τa(3.5 km) ∼ 0.03 –, and a summer maximum – τa(3.5 km) ∼ 0.06 –, and an unexpected increase from August to September — τa(3.5 km) ∼ 0.055. We computed backward trajectories for the years 2005 to 2012 to interpret the air mass origin. Winter nights with low aerosol concentrations show air masses originating from the Pacific Ocean. Average concentrations are affected by continental sources (wind-blown dust and urban pollution), whilst the peak observed in September and October could be linked to biomass burning in the northern part of Argentina or air pollution coming from surrounding urban areas.
format Articulo
Articulo
author Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_facet Dova, María Teresa
Gómez Albarracín, Flavia Alejandra
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Moreno, Juan Cruz
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_sort Dova, María Teresa
title Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
title_short Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
title_full Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
title_fullStr Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
title_full_unstemmed Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
title_sort origin of atmospheric aerosols at the pierre auger observatory using studies of air mass trajectories in south america
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/75390
work_keys_str_mv AT dovamariateresa originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT gomezalbarracinflaviaalejandra originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT hansenpatriciamaria originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT jarnececiliagisele originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT mariazzianalisagabriela originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT morenojuancruz originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT sciuttosergiojuan originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT wahlberghernanpablo originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
AT thepierreaugercollaboration originofatmosphericaerosolsatthepierreaugerobservatoryusingstudiesofairmasstrajectoriesinsouthamerica
bdutipo_str Repositorios
_version_ 1764820486325272577

Ejemplares similares