Study of long-term underground water flow system, 2; Attempt of underground water flow movement evaluation that considers climatic variation of coming of the cold period etc

Fuchiwaki, Hirotaka; Munakata, Masahiro ; Kimura, Hideo; Imai, Hisashi*; Shiozaki, Isao*; Yamashita, Ryo*

It is thought that in an external factor that influences the underground flow, there is a climatic variation repeated at the cycle of the order of 100,000 years, the following phenomena are caused by this climatic variation, and it influences the underground flow. It is thought that the following phenomena are caused by this climatic variation, and it influences the underground flow. (1) Development and disappearance of glacier, (2) Change in precipitation, (3) Decrease in amount of training because of development of frozen soil, (4) Sea-level rhythms, (5) Upheaval and erosion by gaining the weight to the earth's crust according to development of river and disappearance, (6) Dilution of seawater according to glacier disappearance, etc. The analytical result and the evaluation are announced.