Further Continuation of Glaciophysical Survey of the Interior Ross Embayment (GSIRE)

进一步继续罗斯湾内陆冰川物理调查 (GSIRE)

• 批准号: 8614011
• 负责人: Charles Bentley
• 金额: $ 102.79万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8614011&HistoricalAwards=false
• 关键词: Further; Continuation; Glaciophysical; Survey; Interior

Investigations of the configuration, physical properties, and dynamics of the portion of the West Antarctic inland ice sheet that flows in to the floating Ross Ice Shelf will be continued. Two seasons of field work (1987-88 and 1988-89) will be followed by one year of data analysis (1989-90). The emphasis of this work will be to study further the characteristics and distribution of the active subglacial till layer found under one section of ice stream B, to compare and contrast ice streams B and C and the intervening ridge with respect to their basal characteristics, internal physical constitutions, and surface configurations, and to conduct a reconnaissance survey of ice streams D and E. Measurement methods will include airborne radar, seismic shooting, and recording of microearthquakes. Supplementary investigations will include ground-based radar studies of crevasse depths, basal reflection strengths and depolarization phenomena, and electrical resistivity profiles. Gravity measurements, determinations of ice-movement rates, and core sampling for calculation of surface net balance rates will be carried out in cooperation with other ongoing research.

对流向浮动的罗斯冰架的西南冰盖部分的配置，物理特性和动力学的调查将继续进行。 野外工作的两个季节（1987-88和1988-89）将随后进行一年的数据分析（1989 - 90年）。 这项工作的重点是进一步研究冰流B的一个部分在冰流B的一个部分中发现的活动的特征和分布，以比较和对比冰流B和C与冰的基础特征，内部物理构件，内部构成和表面配置，并在冰上播放冰室D和E.录制的范围。微生物。 补充研究将包括对裂缝深度的地面雷达研究，基础反射强度和去极化现象以及电阻率谱。 重力测量，对冰率的测定以及用于计算表面净额率的核心采样，将与其他正在进行的研究合作进行。