Water balance prediction based on high resolution sedimentary climatic history

2017 Fiscal Year Final Research Report

• Project/Area Number: 26400493
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geology
• Research Institution: Waseda University
• Principal Investigator: Inouchi Yoshio 早稲田大学, 人間科学学術院, 教授 (00294786)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 水収支 / 気候変動 / 湖沼 / 堆積物 / 音波探査 / 琵琶湖

Outline of Final Research Achievements

Periods of high lake level in Lake Biwa in glacial age correlate well with those of Heinrich events which shows abrupt cooling. The mechanism for this phenomena is that during glacial times, winter monsoon have been strengthened which result in heavy snow fall to Japanese island as well as catchment basin of Lake Biwa. Cored sediment taken at Takashima-oki drilling site and that off Echi river drilling records climatic change history and water balance history around Lake Biwa as well as that of Japanese island. Flow pattern of westerlies is strongly controlled by abrupt cooling events which cause teleconnection of global flow pattern and affecting limiting location of east Asian summer and winter monsoons.

Free Research Field

地質学