東京湾における水温と塩分の空間濃度分布の季節別特徴

概要

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Seasonal characteristics of the spactial distributions of water temperature and salinity in Tokyo Bay were revealed by applying statistical methods to the monitoring data obtained at 41 observation points every month from April 1985 to March 1990. At the center of the bay, the surface water kept higher temperature than that at the bottom during May to October, and it took a little bit lower one than that at the bottom in Winter. The salinitiy at the surface took its minimum and maximum in Summer and Winter, respectively, and that at the bottom took them in the reverse seasons. Those at both layers were almost equal in February because of surface cooling, and the original salinity of ocean water 34.4 was reduced to 33.On the other hand, the water temperature at the head of the bay was higher than that at the mouth of the bay during May to October, and this relation was reversed in the other months. Low salinity was prominent near the mouth of the rivers of Ara and Tama, and it expanded along the west coast to the mouth of the bay. The salty ocean water entered from the mouth of the bay through the bottom layer, and it reached to off the mouth of the river of Tama, where relatively high salinity was observed at the surface especially in Spring and Summer.
社団法人　日本水環境学会の論文
1996-06-10