Dr Eiichi Shimojima

Dr Eiichi Shimojima is a professor in Department of Civil Engineering, Daido Institute of Technology.

He obtained his doctoral degree of engineering from Kyoto University in 1985. Its theme was concerning the mechanism of rainwater infiltration into soil, in particular, a role of pore-air in the infiltration.　 After he finished Master Course of Civil Engineering in Kyoto University in 1971, he worked for that University until 1991. He jointed DIT in 1992.

His research area is hydrology such as: rainwater infiltration and recharge to water table, evaporation and salinization, solute transport in soil and runoff process in a mountain watershed. He studies/studied most of these problems collaboratively with scientists in Japan and Australia.

Special area of interest and its related publications:

(A) Rainwater infiltration and recharge to water table
1) Mechanism of rainwater infiltration into a fractured sedimentary rock mountain in Yura, Wakayama, Western Japan is researched by measuring discharge and chemistry of seeping water into an underlying tunnel.

Precipitation, groundwater and ground deformation: Proc. Intern'l Assoc. Geodesy Symposia, Global and Regional Geodynamics, Springer-Verlag,pp. 132-139,1991.
Seepage into a mountain tunnel and rain Infiltration: J. Hydrol. , Vol.147 ,pp. 121-151, 1993.

2) Role of pore-air in rainwater infiltration into soil was studied experimentally and theoretically, in particular, focusing on the exchange mechanism of the rainwater with pore-air in the infiltration process.

A role of pore air in infiltration process: Bull. Disas. Prev. Res. Inst. ,Kyoto Univ. ,Vol.33 ,pp. 163-222 ,1983.
Infiltration process of rainfall with constant intensity: Bull. Disas. Prev. Res. Inst., Kyoto Univ., Vol.34, pp.55-104, 1984.
The role of void air in the infiltration process: Proc. Intern'l Conference on Infiltration Development and Application, Hawaii,pp. 94-103,1987.
Infiltration into a uniform sand column with a central, small and cylindrical space with a coarser sand: Bull. Disas. Prev. Res. Inst., Kyoto Univ., Vol.37, pp.107-145, 1987.

(B) Evaporation and salinization
1) Influences of surface wind on the evaporation process is studied experimentally and theoretically. And, behaviors water near the ground surface under the evaporation is also studies through observation in a desert in Western China.

A laboratory experiment on the evaporation from bare land surface with an underlying water table: Bull. Disas. Prev. Res. Inst., Kyoto Univ., Vol.39, pp.23-61, 1989.
The mechanism of evaporation from sand columns restricted and unrestricted water tables using Deuterium under turbulent airflow conditions: J. Hydrol., Vol.117, pp.16-54, 1990.
Water vapor transfer beneath bare soil where evaporation is influenced by a turbulent surface wind: J. Hydrol., Vol.131, pp.63ー104, 1992.
Behaviors of water near ground surface in the HEIFE desert station:Proc. Intern'l Sympsium on HEIFE, Kyoto, Japan, pp.150-157, 1993.

2) Relationship between evaporation from a bare-soil surface and salinization due to the evaporation is studied through a column experiment.

Salinization owing to evaporation from bare-soil surfaces and its influences on the evaporation: J. Hydrol. , Vol.178 , pp.109-136 , 1996.

Transport of sorptive and non-sorptive chemicals in unsaturated soil is studied through a column experiment. And, effects of structure of dual porosity (intra-, inter-pores) on the transport are also examined.

In situ sampling of soil water for measurement of water quality:Proc. Symp. on Soil Science and Environment, Australian Soc. Soil Science (WA branch), Perth,pp.187-196, 1991.
The influence of pore water velocity on transport of sorptive and non-sorptive chemicals through an unsaturated sand:J.Hydrol.,Vol.164, pp.239-261, 1995.

(D) Runoff process in a mountain basin.

Runoff process in mountanious sub-basins with different geological characteristics in Jintsu River watershed in Central Japan is studied through measurements of river-water discharge and its chemistry.

　For further information: Department of Civil Engineering,Daido Institute ofTechnology40 Hakusui-cho, Minami-ku,Nagoya 457-8532, Japan Tel: +81(0)52-612-6671, Fax: +81(0)52-612-5953
E-mail: shimoji@daido-it.ac.jp