Research Center for Coastal Lagoon Environments, Shimane University
ISSN:2185-2995(online)
ISSN:1340-3834(in print)
ISSN:1340-3834(in print)
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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/3045
Laguna : 汽水域研究 6
1999-03 発行
本庄工区パイプ潮通し付近の底層水の動態観測
Observation of Bottom Water near the Pipe Exchanging with Seawater in Honjou Area, Lake Nakaumi
Ueno, Hiroyoshi
Tokuoka, Takao
Takayasu, Katsumi
Nishimura, Kiyokazu
Suzaki, Satoshi
Matsuda, Shigeo
Kubota, Shunsuke
Suzuki, Shigenori
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Description
We observed continuously behaviour of bottom water near the pipe exchanging with seawater in Honjou area, Lake Nakaumi, to explicate the effect of the pipe. We analyzed salinity, water temperature, flow velocity, direction and halocline behaviour by the systems which were developed for the long-term observation of halocline behaviour in estuaries. Although the difference between incoming seawater and the indigenous water in Honjou area was small, the result suggested that (1) the bottom water mass was influenced by seawater inflow near the pipe and (2) more than 50m away from the pipe, the bottom water was not affected by seawater incoming. We also found the other phenomenon, i. e. the high temperature water mass moving. The equipments that we used were very useful to observe the water behaviour in the field where the variation of water property was small.
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