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

被引：129
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
收藏
页码：595 / 603
页数：9
相关论文
共 13 条
  • [1] TILL BENEATH ICE STREAM-B .3. TILL DEFORMATION - EVIDENCE AND IMPLICATIONS
    ALLEY, RB
    BLANKENSHIP, DD
    BENTLEY, CR
    ROONEY, ST
    [J]. 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
    BALISE, MJ
    RAYMOND, CF
    [J]. JOURNAL OF GLACIOLOGY, 1985, 31 (109) : 308 - 318
  • [3] SATELLITE-IMAGE-DERIVED VELOCITY-FIELD OF AN ANTARCTIC ICE STREAM
    BINDSCHADLER, RA
    SCAMBOS, TA
    [J]. SCIENCE, 1991, 252 (5003) : 242 - 246
  • [4] ICE DYNAMICS AT THE MOUTH OF ICE STREAM-B, ANTARCTICA
    BINDSCHADLER, RA
    STEPHENSON, SN
    MACAYEAL, DR
    SHABTAIE, S
    [J]. 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
    ENGELHARDT, H
    HUMPHREY, N
    KAMB, B
    FAHNESTOCK, M
    [J]. 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
    MACAYEAL, DR
    [J]. 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
    THACKER, WC
    LONG, RB
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1988, 93 (C2): : 1227 - 1240
12