Contents of Education and Research

NameJun Shimada
Affiliation Professor, Graduate School of Science • Technology
President, Center for Marine Environment Studies
Career1993 Assistant Professor, Geoenvironmental Sciences Life and Environmental Sciences University of Tsukuba
1996: Visiting Researcher, Australian Geological Survey Organisation
1999: Professor, Faculty of Science, Kumamoto University, teaching research at the graduate school (doctoral course)
2006: Professor, the Graduate School of Kumamoto University, Life and Environment Science (Geoenvironmental Science, concurrently)
2009`present: President, Center for Marine Environment Studies, Kumamoto University

Activities in Academic Societies

Administration Officer, Subprincipal of the Japanese Association of Groundwater Hydrology

Councilor, Permanent Committee, Convention Chairman of the Japanese Association of Hydrological Science

Representative of the Japan Society of Engineering Geology (Councilor: The Kyushu Society of Engineering Geology)

Chair of IAH Subcommittee, Science Council of Japan, International Sectional Committee
President of IAH National Commission

Contents of Research

I research hydrology, investigating the hydrological cycle processes of land surfaces, especially the dynamics of flow processes of water, using environmental isotopes included in water.
Coastal areas have estuaries which are the hydrological outlets from peripheral land areas, and a lot of research studies have been done on environmental loads on river water which flows down from watershed areas. However, the case is that unignorable environmental loads are actually brought from land areas through groundwater containing highly concentrated dissolved components. This has recently been a focus of attention as a common theme of hydrological science and oceanographic science.

The Coastal areas of the Ariake Sea and the Yatsushiro Sea have a few steep mountains, and plentiful gushing groundwater from the seabed has been recognized. Since citrus fruits fields cover a vast surface of the peripheral lands, a considerable volume of environmental loads such as nutrient salt and agrichemicals have been conveyed to the sea more through underground water than river water. Results of further studies will undoubtedly draw attention to this concern.

Gushing groundwater from the seabed in the tideland near Nagao Shrine of Shiranui, Uto Peninsula

Variations according to the change of tide of the coastal area, of gushing fresh water from underground. (warm colored)

Consecutive measurement of undersea Rn concentration from a small boat which was towed.

Center for Marine Environment Studies
Kumamoto University 39-1,Kurokami 2-chome,Chuo-ku,Kumamoto 860-8555 Phone:+81-09-342-3143

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