THE BASAL STRESS-DISTRIBUTION OF ICE STREAM-E, ANTARCTICA, INFERRED BY CONTROL METHODS

被引：130

作者：

MACAYEAL, DR ^{[1
]}

机构：

[1] UNIV CHICAGO, DEPT GEOPHYS SCI, 5734 S ELLIS AVE, CHICAGO, IL 60637 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH | 1992年 / 97卷 / B1期

关键词：

D O I：

10.1029/91JB02454

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The irregular spatial distribution and velocity independence of basal friction derived from Landsat measured surface velocity suggests that ice stream flow is not controlled by the properties of a deformable basal till alone. Rigid bedrock substrata may contact the base of the ice stream in small (< 100 km2) areas where the velocity field displays strong vorticity and where the ice stream surface appears rumpled in Landsat images.

引用

页码：595 / 603

页数：9

共 13 条

[1] TILL BENEATH ICE STREAM-B .3. TILL DEFORMATION - EVIDENCE AND IMPLICATIONS [J].

ALLEY, RB ;

BLANKENSHIP, DD ;

BENTLEY, CR ;

ROONEY, ST .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1987, 92 (B9) :8921-8929

[2] TRANSFER OF BASAL SLIDING VARIATIONS TO THE SURFACE OF A LINEARLY VISCOUS GLACIER [J].

BALISE, MJ ;

RAYMOND, CF .

JOURNAL OF GLACIOLOGY, 1985, 31 (109) :308-318

[3] SATELLITE-IMAGE-DERIVED VELOCITY-FIELD OF AN ANTARCTIC ICE STREAM [J].

BINDSCHADLER, RA ;

SCAMBOS, TA .

SCIENCE, 1991, 252 (5003) :242-246

[4] ICE DYNAMICS AT THE MOUTH OF ICE STREAM-B, ANTARCTICA [J].

BINDSCHADLER, RA ;

STEPHENSON, SN ;

MACAYEAL, DR ;

SHABTAIE, S .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1987, 92 (B9) :8885-8894

[5]

Bryson A.E, 1975, APPL OPTIMAL CONTROL

[6] PHYSICAL CONDITIONS AT THE BASE OF A FAST MOVING ANTARCTIC ICE STREAM [J].

ENGELHARDT, H ;

HUMPHREY, N ;

KAMB, B ;

FAHNESTOCK, M .

SCIENCE, 1990, 248 (4951) :57-59

[7]

FROLICH RM, 1988, ANN GLACIOL, V11, P19

[8] LARGE-SCALE ICE FLOW OVER A VISCOUS BASAL SEDIMENT - THEORY AND APPLICATION TO ICE STREAM-B, ANTARCTICA [J].

MACAYEAL, DR .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1989, 94 (B4) :4071-4087

[9]

STEPHENSON SN, 1990, ANN GLACIOL, V14, P271

[10] FITTING DYNAMICS TO DATA [J].

THACKER, WC ;

LONG, RB .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1988, 93 (C2) :1227-1240

← 1 2 →