Study on hydraulic conditions for sudden acceleration in retreat of calving glaciers

2014 Fiscal Year Final Research Report

• Project/Area Number: 24540474
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Hiroshima Institute of Technology
• Principal Investigator: NAITO Nozomu 広島工業大学, 環境学部, 教授 (90368762)
• Co-Investigator(Renkei-kenkyūsha): SUGIYAMA Shin 北海道大学, 低温科学研究所, 准教授 (20421951) ; SAWAGAKI Takanobu 北海道大学, 地球環境科学研究院, 助教 (70312410)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 氷河変動 / カービング氷河 / 氷河湖 / パタゴニア / ペリート･モレノ氷河 / 現地観測

Outline of Final Research Achievements

We carried out field observations on the Glaciar Perito Moreno, Patagonia in the South America. From those results, annual variations in location of the glacier terminus, distribution of the terminal flow speed, and ice thickness of the glacier ablation area, are revealed. We, however, have not yet accomplished to investigate hydraulic correlations between the glacier terminal / ice thickness variations and water pressure of the proglacial lake evaluated from the lake depth data, unfortunately. Nevertheless, we have stored precious data set for the glacier, those have been seldom obtained on other calving glaciers. We are convinced that our data set should contribute to clarify mechanism of calving glaciers’ variations through continuing the analysis.

Free Research Field

氷河変動学