ON THE CHARACTERISTICS OF WIND-INDUCED CURRENT IN LAKE OGAWARA, JAPAN
Lake Ogawara is a large brackish water lake located at the northeast end of Japans main island. This paper presents the data of field experiment carried out in autumn of 2006 and discusses the characteristics of the vertical mixing in the halocline and the horizontal circulations in the surface mixed layer. The experiment was composed of two kinds of measurements: (1) Vertical profile of horizontal velocity was collected by three ADCPs set on the bottom of the north, the center, and the south water areas for two months. (2) Horizontal flow field was searched in wide areas from three boats equipped with ADCP in three days of November. The data from the first measurement showed a periodic appearance of intense shear layer in the halocline that seemed to be generated by intemal seiche. The data from the second measurement showed the existence of rather stable currents in the surface mixed layer. These facts suggested that substances entrained from anaerobic hypolinmion by the shear motion in the halocline are carried by the stable horizontal current in the mixed layer to form uneven condition of water environment in the lake.
wind induced currents brackish water lake internal seiche horizontal circulation
Yuto Sasajima Tadaharu Ishikawa Yasushi Tsuruta Mitsuho Amano Shinichi Endo
Department of Environmental Science and Technology, Tokyo Institute of Technology, 4259, Nagatsuda, CTI Engineering Co., Ltd. Ministry of Land, Infrastructure and Transport Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1365-1369
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）