Study of Ayoloco glacier at Iztaccíhuatl volcano (Mexico): Hazards related to volcanic activity - Ice cover interactions
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Iztaccíhuatl (5286 masl) is an active volcano in central Mexico capped by several ice bodies. We carried out a series of glaciological and volcanological studies in order to assess hazards associated with eruptive products interacting with ice. Measurement of the areal extent of Ayoloco glacier for 1982 and 1998, allows retreating patterns to be recognised. The likely causes of this retreat are global change and regional warming, although volcanic forcing is not ruled out due to the presence of a diffuse-degassing field nearby. A ground penetrating study allowed us to calculate the volumes of Ayoloco glacier ice in 1998. Using these volumes we estimated possible volumes for lahars that might be generated during a future eruptive activity. © 2005 Gebrüder Borntraeger.
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glacier; hazard assessment; ice cover; lahar; volcano; Iztaccihuatl; Mexico [North America]; North America
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