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...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory ismaking significant contributions towards understanding the nature and...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory ismaking significant contributions towards understanding the nature and...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory ismaking significant contributions towards understanding the nature and...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory ismaking significant contributions towards understanding the nature and...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...
The Pierre Auger Observatory is making significant contributions towards understanding the nature an...