Glaciers and Climate in the Andes between the Equator and 30° S: What is Recorded under Extreme Environmental Conditions?

  title={Glaciers and Climate in the Andes between the Equator and 30° S: What is Recorded under Extreme Environmental Conditions?},
  author={Ulrich Schotterer and Martin Grosjean and Willibald Stichler and Patrick Ginot and Christoph Kull and Herv{\'e} Bonnaveira and Bernard Francou and Heinz Walter G{\"a}ggeler and Robert Gallaire and Georg Hoffmann and Bernard Pouyaud and Edson Ram{\'i}rez and Margit Schwikowski and J-D. Taupin},
  journal={Climatic Change},
Sublimation and melt disturb the environmental information obtained from ice core records in the Andes. In two case studies we demonstrate to what extent these post-depositional processes may remove major parts of the accumulated snow cover. Dark ash layers from the Tungurahua eruption changed the albedo of surface snow on Chimborazo glacier (6268 m, 1°30′ S,78°36′ W, Ecuador) between two ice core drilling campaigns and forced substantial melt. Re-distribution and washout of the chemical… 
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