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| Berthier, Etienne; Le Bris, Raymond; Mabileau, Laure; Testut, Laurent; Remy, Frederique. |
| We observed the wastage of ice masses on the Kerguelen Islands ( Indian Ocean, 49 degrees S, 69 degrees E) using historical information and recent satellite data. Overall, the total ice-covered area on the islands declined from 703 to 552 km(2) between 1963 and 2001, a reduction of 21%. The area of Cook ice cap ( the main ice body) decreased asymmetrically from 501 to 403 km(2). West flowing glaciers lost 11% of their area, while east flowing glaciers lost 28%. After 1991, the retreat rate accelerated from 1.9 km(2)/a ( 1963-1991) to 3.8 km(2)/a ( 1991-2003). Between 1963 and 2000, the ice volume loss was 25-30 km(3), equivalent to an area-average ice-thinning rate of 1.4-1.7 m/a. The glacial retreat took place in the climatic context of a relatively low... |
| Tipo: Text |
Palavras-chave: Ice caps; Climate change; Remote sensing; Kerguelen Islands; Southern Ocean; Mass balance. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00219/33069/31557.pdf |
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