Changes of glaciers in the Andes of Chile and priorities for future work

摘要: Glaciers in the Andes of Chile seem to be shrinking and possibly loosing mass, but number types studies conducted, constrained mainly by data availability, are not sufficient provide a synopsis glacier changes for past or future explain an explicit way causes observed changes. In this paper, we systematic review glaciers entire country, followed discussion that have provided evidence such We identify missing type work distributed, physically-oriented modelling needed bridge gap between numerous remote sensing specific, point scale works focused on process understanding. use advanced mass balance model applied one best monitored region investigate four main research issues should addressed sound assessment changes: 1) physically-based models ablation (energy models) versus more empirical (enhanced temperature index approaches); 2) importance correct extrapolation air forcing high elevation areas large uncertainty outputs associated with it; 3) role played snow gravitational redistribution; 4) climate scenarios. quantify differences each these choices, conclude suggestions directions.