Description of atmospheric conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)

THE PIERRE AUGER OBSERVATORY (PATRICIA HANSEN PERTENECE A LA COLABORACION)

ASTROPARTICLE PHYSICS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2012 vol. 35 p. 591 - 607

0927-6505

Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructingobserved extensive air showers. The Global Data Assimilation System (GDAS) is a global atmosphericmodel predicated on meteorological measurements and numerical weather predictions. GDAS providesaltitude-dependent profiles of the main state variables of the atmosphere like temperature, pressure,and humidity. The original data and their application to the air shower reconstruction of the Pierre AugerObservatory are described. By comparisons with radiosonde and weather station measurements obtainedon-site in Malargüe and averaged monthly models, the utility of the GDAS data is show