Fast recession of a West Antarctic glacier

被引:263
作者
Rignot, EJ [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
关键词
D O I
10.1126/science.281.5376.549
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Satellite radar interferometry observations of Pine Island Glacier, West Antarctica, reveal that the glacier hinge-line position retreated 1.2 +/- 0.3 kilometers per year between 1992 and 1996, which in turn implies that the ice thinned by 3.5 +/- 0.9 meters per year. The fast recession of Pine Island Glacier, predicted to be a possible trigger for the disintegration of the West Antarctic Ice Sheet, is attributed to enhanced basal melting of the glacier floating tongue by warm ocean waters.
引用
收藏
页码:549 / 551
页数:3
相关论文
共 25 条
[1]  
[Anonymous], 1982, ANN GLACIOL, DOI DOI 10.3189/S0260305500002548
[2]   An improved elevation dataset for climate and ice-sheet modelling: validation with satellite imagery [J].
Bamber, JL ;
Bindschadler, RA .
ANNALS OF GLACIOLOGY, VOL 25, 1997: PAPERS FROM THE INTERNATIONAL SYMPOSIUM ON REPRESENTATION OF THE CRYOSPHERE IN CLIMATE AND HYDROLOGICAL MODELS HELD AT VICTORIA, BRITISH COLUMBIA, CANADA, 12-15 AUGUST 1996, 1997, 25 :439-444
[3]  
DENTON GH, 1979, J GLACIOL, V24, P495
[4]  
HELLMER HH, ANTARCTIC RES SERIES, V75
[5]  
Hughes T.J, 1979, J GLACIOL, V24, P493
[6]   THE WEAK UNDERBELLY OF THE WEST ANTARCTIC ICE-SHEET [J].
HUGHES, TJ .
JOURNAL OF GLACIOLOGY, 1981, 27 (97) :518-525
[7]   Antarctic ice sheet melting in the Southeast Pacific [J].
Jacobs, SS ;
Hellmer, HH ;
Jenkins, A .
GEOPHYSICAL RESEARCH LETTERS, 1996, 23 (09) :957-960
[8]   Glaciological and oceanographic evidence of high melt rates beneath Pine island glacier, west Antarctica [J].
Jenkins, A ;
Vaughan, DG ;
Jacobs, SS ;
Hellmer, HH ;
Keys, JR .
JOURNAL OF GLACIOLOGY, 1997, 43 (143) :114-121
[9]  
Kellogg T. B., 1985, ANTARCT J US, V20, P79
[10]   RECENT GLACIAL HISTORY AND RAPID ICE STREAM RETREAT IN THE AMUNDSEN SEA [J].
KELLOGG, TB ;
KELLOGG, DE .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1987, 92 (B9) :8859-8864