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Abstract

Here we present the first results of our study on the response of the mountain cryosphere to geoengineering. The Andes Mountains, traversing and modifying a large number of the Earth's climates, correspond to one of the most vulnerable mountain environments due to the generalized glacier retreat that is affecting water availability and is expected to continue under several climate projections. Therefore, this is a formidable case study for testing the regional impacts of solar geoengineering scenarios, as the response of the mountain cryosphere to geoengineering remains a significantly uncertaint. Therefore, the aim of our work is to compare and analyze the impact of solar geoengineering scenarios versus SSP245-585 scenarios using climate indices. In our research, we divided the Andes in 8 glaciological zones to study climatic indices analizing key variables that control glacier surface mass balance: precipitation, mean, minimum and maximum temperature at a daily frequency and spatial resolution of 100 and 250 km. Due to this low resolution, we applied a statistical downscaling and bias correction differentiated by glaciological zone. In the poster we show spatiotemporal trends of the indices along the Andes, discussing the implications of solar geoengineering scenarios relative to other climate scenarios, in particular to glacier mass balance.