TY - JOUR AU - Pierre Auger Collaboration (Abreu, P. et al AU - Pastor, S. PY - 2012 DA - 2012// TI - Description of atmospheric conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS) T2 - Astropart Phys. JO - Astroparticle Physics SP - 591 EP - 607 VL - 35 IS - 9 PB - Elsevier Science Bv KW - Cosmic rays KW - Extensive air showers KW - Atmospheric monitoring KW - Atmospheric models AB - Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a global atmospheric model predicated on meteorological measurements and numerical weather predictions. GDAS provides altitude-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 Auger Observatory are described. By comparisons with radiosonde and weather station measurements obtained on-site in Malargue and averaged monthly models, the utility of the GDAS data is shown. SN - 0927-6505 UR - http://arxiv.org/abs/1201.2276 UR - https://doi.org/10.1016/j.astropartphys.2011.12.002 DO - 10.1016/j.astropartphys.2011.12.002 LA - English N1 - WOS:000302109200006 ID - PierreAugerCollaborationAbreu+Pastor2012 ER -