Measured temperature distribution of lake bottom at margin of Lake Nakaumi(observation area ?). (1) 3:59, May 11, 1995, (2) 8:02, May 11, 1995, (3) 13:59, May 11, 1995
Fig.10
Position of an optical fiber cable and acoustic transducers(T-1, 2, 3) in the center of Lake Nakaumi(observation area ?).