Browsing by Author "XX677024"

Now showing items 21-26 of 26

    • Recent glacier variations at the Aconcagua basin, central Chilean Andes 
      Bown, Francisca; Rivera Ibáñez, Sergio; Acuña, César (International Glaciological Society, 2008-06)
      The majority of glaciers in central Chile have receded in recent decades, from >50m to only a few meters per year, mainly in response to an increase in the 08C isotherm altitude. The Aconcagua river basin (338 S) is one ...
    • A review of remote sensing methods for glacier mass balance determination 
      Bamber, Jonathan; Rivera Ibáñez, Sergio (ELSEVIER SCIENCE BV, 2007-10)
      Airborne and satellite remote sensing is the only practical approach for deriving a wide area, regional assessment of glacier mass balance. A number of remote sensing approaches are possible for inferring the mass balance ...
    • The surface energy balance of an active ice-covered volcano:Villarrica Volcano, Southern Chile 
      Brock, Benjamin; Casassa, Gino; Bown, Francisca; Rivera Ibáñez, Sergio; Acuña, César (International Glaciological Society, 2007-10)
      The energy balance of bare snow and tephra-covered ice near the glacier equilibrium line elevation on Villarrica Volcano, southern Chile, was investigated during 2004 and 2005, combining meteorological, surface temperature ...
    • Topographic and hydrological controls on Subglacial Lake Ellsworth, West Antarctica 
      Vaughan, David G.; Woodward, John; Corr, Hugh F. J.; Rivera Ibáñez, Sergio; Wendt, Jens; Zamora, Rodrigo (AMER GEOPHYSICAL UNION, 2007-09-19)
      Subglacial Lake Ellsworth (SLE) was identified using reconnaissance data collected in the 1970s, here we present more detailed surveys. SLE lies beneath 3.2 km of ice in a subglacial valley in West Antarctica. It has ...
    • Variaciones recientes de glaciares en Chile 
      Casassa, Gino; Rivera Ibáñez, Sergio; Acuña, César (Universidad de Chile, 2000)
      Se presenta una síntesis de la investigación glaciológica realizada en Chile durante las últimas décadas, incluyendo los inventarios existentes, los balances de masa y las variaciones de glaciares, todo lo cual se analiza ...
    • Volume changes on Pio XI glacier, Patagonia: 1975-1995 
      Rivera Ibáñez, Sergio; Casassa, Gino (Elsevier, 1999)
      Pio XI glacier, with an area of 1263 km 2 and a length of 65.7 km, is the largest of the Southern Patagonia Icefield (SPD. During the period 1945-1995 it experienced a net advance of ca. 10 km., a unique behavior considering ...