Inventory and recent changes of small glaciers on the northeast margin of the Southern Patagonia icefield, Argentina
- Masiokas, Mariano Hugo
- Delgado, Silvia Cristina
- Pitte, Pedro Miguel
- Berthier, E.
- Villalba, Ricardo
- Skvarca, P.
- Ruiz, Lucas Ernesto
- Ukita, J.
- Yamanokuchi, T.
- Tadono, T.
- Marinsek, S.
- Couvreux, F.
- Zalazar, Laura Viviana
DOIAbstract
Most glaciological studies in Argentina have focused on the large outlet glaciers of the Southern Patagonia Icefield (SPI); the numerous smaller neighboring glaciers have received significantly less attention. We present an inventory of 248 medium- to small-size glaciers (0.01-25 km2) adjacent to the northeast margin of the SPI, describe their change over the period 1979-2005 and assess local and regional climatic variations in an attempt to explain the observed glacier changes. Based on an ASTER mosaic from 20 February 2005 and the ASTER Global Digital Elevation Model, we identified a total glacier area of 187.2 ±7.4 km2 between 600 and 2870ma.s.l. Glaciers are largely debris-free and are concentrated in the western, more humid sector adja...
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