Modelling of mean annual air temperature (1979-2010) for the study of mountain permafrost in the SW of San Juan

CARLA TAPIA BALDIS; DARIO TROMBOTTO LIAUDAT; CRISTIAN VILLAROEL; FEDERICO OTERO

Potsdam

Congreso; International Conference on Permafrost; 2016

Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research International Permafrost Association

It is the aim of the present study to estimate and statistically model the mean annual air temperature (MAAT) for the southwestern part of the Andes in the province of San Juan, Argentina (31°S to 33°S and 71°W to 69°W), an area with hardly any register of instrumental data. At a large scale the MAAT may provide a good approximation of permafrost distribution. The Argentine Central Andes have a mean altitude of 3500 m asl with several peaks of 6000 m asl and higher. The "reanalysis data" indicate a MAAT of 0.88 °C between 1979 and 2010 at a height of 3685 m asl.