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The conditions of temperature and the “Glaciar Norte” ice conductivity in the Citlaltepetl volcano are studied with the aim to determinate its basal permafrost. From temperature records close to surface, the temperature average in internal steady-state of “Glaciar Norte” was estimated using a sinusoidal method, which manage the thermal-conductive properties of ice. Through its temperature profile, an approach to the thermal conditions of Mexico´s main glacier was obtained. The results may suggest the existence of a basal permafrost, which would be due to the ice insulation and the thermal conduction by direct contact between ice and substratum.

Estimación de la temperatura basal del “Glaciar Norte” del volcán Citlaltépetl, México. Modelo para determinar la presencia de permafrost subglaciar