Evaluation of the effect of variation in the end of ice sheet on the dynamical behavior of drainage basin, Antarctica

冰盖末端变化对南极流域动力学行为影响的评估

基本信息

批准号：
15310017
负责人：
FURUKAWA Teruo
金额：
$ 6.21万
依托单位：
National Institute of Polar Research
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15310017/
关键词：
Synthetic Aperture Radar(SAR)Antarctica ice sheet the end of ice sheet global climatic change change in ice sheet Geographic Information System (GIS)

项目摘要

It is important to reveal the variation in ice mass of the Antarctic ice sheet caused by global climatic change. The objective of this project is to reveal the effect of variation in the end of ice sheet on the dynamical behavior of drainage basin in Antarctic ice sheet. Japanese Antarctic Research Expeditions (JAREs) have collected the ground data on surface topography, bedrock topography, surface snow conditions and surface mass balance in the Shirase drainage basin of which summit of the ice sheet (Dome Fuji). The dynamical behavior of Shirase Glacier is very important to understand the response of the Shirase drainage basin to global climatic change. It is difficult to approach Shirase Glacier because of the existence of many crevasses. It is possible to collect various information of the glacier using Synthetic Aperture Radar (SAM).In order to investigate the effect of variation of the end of ice sheet on the dynamical behavior of drainage basin in Antarctica, the analysis system was built using Geographic Information System (GIS). It is possible to compare ground observation data such as surface topography, snow surface conditions and surface mass balance with image data by Synthetic Aperture Radar (SAR). And to reveal the mechanism of ice sheet change, the analysis of multi frequencies radio echo sounding observation data on the internal structure of the ice sheet.

重要的是要揭示由全球气候变化引起的南极冰盖冰块的变化。该项目的目的是揭示冰盖末端变化对南极冰盖排水盆地动态行为的影响。日本南极研究探险（JARES）已收集了地面形貌，基岩地形，表面降雪条件和Shirase排水盆地的表面质量平衡的地面数据，其冰盖山顶（圆顶富士）。 Shirase冰川的动态行为对于了解Shirase引流盆地对全球气候变化的反应非常重要。由于存在许多裂缝，因此很难接近Shirase冰川。可以使用合成孔径雷达（SAM）收集冰川的各种信息。为了研究冰盖结束对南极排水盆地动态行为的变化的影响，使用地理信息系统（GIS）构建了分析系统。可以通过合成孔径雷达（SAR）比较地面观测数据，例如表面形貌，雪表面条件和表面质量平衡与图像数据。为了揭示冰盖变化的机理，对冰盖内部结构的多频率无线电回声观察数据的分析。