VARIATION OF THE SNOW LINE ALTITUDE IN HUASCARAN SYSTEM AND ITS RELATIONSHIP TO EL NIÑO-SOUTH OSCILATION DURING THE PERIOD 2001-2018.

Rodolfo Domingo Moreno Santillan Sr, CONIDA, Lima, Peru, Luzmila Davila Roller, Instituto de Investigación en Glaciares y Ecosistemas de Montañas, Glaciares, Lima, Peru and Salma Zainab Farooq, Beihang University, Beijing, China