Glacier surge after ice shelf collapse

Science

Volumn 299, Issue 5612, 2003, Pages 1560-1562

  De Angelis, Hernán ^a   Skvarca, Pedro ^a  

^a INSTITUTO ANTÁRTICO ARGENTINO   (Argentina)

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGRAPHIC SURVEYS; ICE; PERTURBATION TECHNIQUES;

ICE SHELF;

GLACIERS;

ICE;

COLLAPSE; GLACIER ADVANCE; ICE SHELF; SATELLITE IMAGERY; SEA LEVEL CHANGE;

ANTARCTICA; ARTICLE; DYNAMICS; GEOGRAPHY; GEOMORPHOLOGY; GLACIER; IMAGE ANALYSIS; IMAGING SYSTEM; MOTION; PRIORITY JOURNAL; VELOCITY;

ANTARCTICA;

EID: 0037423892     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1077987     Document Type: Article

References (20)

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18. A surge is a sudden increase in glacier velocity originating when the ice stored in an active reservoir area flows, sometimes catastrophically, into a lower, almost stagnant, receiving area. Typical glacier surges are not obviously linked to climate but can be triggered by a variety of possible mechanical perturbations. Among these, the most widely investigated are changes in the configuration of the basal hydraulic system and basal thermal instabilities associated with polythermal glaciers.
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20. We are grateful to the Twin Otter crews of Fuerza Aérea Argentina for their excellent performance in airborne surveys. We also thank T. Hughes, F, Rau, and two anonymous reviewers for their constructive comments. The ASTER image was provided through the Global Land Ice Measurements from Space (GLIMS) project by the Regional Center 18, Institut für Physische Geographie, Universität Freiburg, Germany. This work is a contribution to the project "interacción Hielo-Clima y Dinámica de Glaciares en Península Antártica y Patagonia Austral" of Dirección Nacional del Antártico-Instituto Antártico Argentino.