| Physical, Chemical and Biological Dynamics of Substances at Boundaries in Lake Biwa (1) - Some Results of Physical Observation in the Boundary Area between the North Basin and the South Basin - |
| S. ENDOH, I. OKAMOTO, M. KAWASHIMA, N. SUZUKI, S. KITAMURA, Y. ITAKURA,
T. TERADA and M. KATO |
| Mem. Fac. Educ. Shiga Univ., Vol.39, 29-49, 1989 |
| In summers and winters of 1986-1988, we carried out a number of observations of the spatial distribution of water temperature, electric conductivity, turbidity and so on in the boundary area between the north basin and the south basin of Lake Biwa. We also made continuous current measurements by using the current meters in winter of 1987. The LANDSAT TM imageries are used for the estimation of the horizontal distributions of surface water temperature and transparency. The turbidity front exists in the area about 3 km south of Biwako Ohashi (Bridge) both in summer and winter. The thermal front is very clear in winter especially after the cold wave, and the cold water of the east part of the south basin flow continuously into the bottom layer of the north basin for several days. |