尾鷲湾内部の水温・塩分の水平分布

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Owase Bay locates at eastern coast of Kii Peninsula in central Japan. Hydrographic condition of Owase Bay is characterized by the effluent of warm water from thermal electric power plant and fresh water from water-power generation. Thirteen times observations on temperature and salinity were conducted in Owase Bay during the periods from April 1986 to September 1991. Most of the observations are made in summer. Horizontal distributions of the observed temperature and salinity are presented in the present paper. It is revealed that less saline water originated from the effluent of fresh water spreads eastward during ebb and low water and significant change of hydrographic condition occurs depending on tidal periods. The change is confined to surface layer and it is not detected at a depth of 3 m.尾鷲湾は日本中部の紀伊半島に位置し，その海況は火力発電による温排水と水力発電による淡水の放出による。1986年4月より1991年9月にかけて13回の水温・塩分の観測を行った。観測結果の最初の報告として，水温と塩分の水平分布を示した。淡水の放出による低塩分低温度の水の張り出しが落潮時と干潮時に観測され，顕著な潮時ごとの海況の変化が認められた。これらの変化は海面近くに集中し，3m層では認められない。
三重大学の論文