Greenland ice sheet: High-elevation balance and peripheral thinning

被引：284

作者：

Krabill, W

Abdalati, W

Frederick, E

Manizade, S

Martin, C

Sonntag, J

Swift, R

Thomas, R

Wright, W

Yungel, J

机构：

[1] NASA, Lab Hydrospher Proc, Goddard Space Flight Ctr, Wallops Island, VA 23337 USA

[2] EG&G Serv, Wallops Flight Facil, Wallops Island, VA 23337 USA

[3] NASA, Lab Hydrospher Proc, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

SCIENCE | 2000年 / 289卷 / 5478期

关键词：

D O I：

10.1126/science.289.5478.428

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：

Aircraft Laser-altimeter surveys over northern Greenland in 1994 and 1999 have been coupled with previously reported data from southern Greenland to analyze the recent mass-balance of the Greenland Ice Sheet. Above 2000 meters elevation, the ice sheet is in balance on average but has some regions of local thickening or thinning. Thinning predominates at Lower elevations, with rates exceeding 1 meter per year close to the coast. Interpolation of our results between flight lines indicates a net loss of about 51 cubic kilometers of ice per year from the entire ice sheet, sufficient to raise sea Level by 0.13 millimeter per year-approximately 7% of the observed rise.

引用

页码：428 / 430

页数：3

共 13 条

[1]

[Anonymous], CHANGES SEA LEVEL CL

[2] POSITIVE DEGREE-DAY FACTORS FOR ABLATION ON THE GREENLAND ICE-SHEET STUDIED BY ENERGY-BALANCE MODELING [J].