Description of Atmospheric Conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)

Abstract

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 Malargüe and averaged monthly models, the utility of the GDAS data is shown.

References in corpus (8)

• One-dimensional Hybrid Approach to Extensive Air Shower Simulation
• The Offline Software Framework of the Pierre Auger Observatory
• The Pierre Auger Observatory I: The Cosmic Ray Energy Spectrum and Related Measurements
• Air Fluorescence Relevant for Cosmic-Ray Detection - Summary of the 5th Fluorescence Workshop, El Escorial 2007
• Altitude dependence of fluorescence light emission by extensive air showers
• The Pierre Auger Observatory IV: Operation and Monitoring
• Calibration and Monitoring of the Pierre Auger Observatory
• Fluorescence emission induced by extensive air showers in dependence on atmospheric conditions

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