Abstract
Observations were made to study the oceanographic structure of the dense water formation and its outflow from Funka Bay, Hokkaido, during early spring. The winter Funka Bay water, which was transformed from the warm water of the Tsugaru Current, due to cooling and deep convection during the winter, flowed from the bay, while forming a frontal structure. The width and inclination of the density front were about 3 n. miles and 1.4×10−2, respectively, during the early spring of 1982. These values roughly coincided with calculated values of 2.6 n. miles and 1.7×10−2 using the sill flow model proposed by Whiteheadet al. (1974). Observed current speeds and directions were also similar to those predicted by the model. The renewal time of bay water with this flow was estimated to be about 51 days, which is consistent with the results of previous studies.
Similar content being viewed by others
References
Bye, J.A. and J.A. Whitehead (1975): A theoretical model of the flow in the mouth of Spencer Gulf, South Australia. Estuarine and Coastal Marine Science,3, 477–481.
Kido, K. and K. Ohtani (1981): Characteristics of the basin water in Funka Bay. Bull. Fac. Fish., Hokkaido Univ.,32, 138–151.
Ohtani, K. (1971): Studies on the change of the hydrographic conditions in the Funka Bay. II. Characteristics of the water occupying the Funka Bay. Bull. Fac. Fish., Hokkaido Univ.,22, 58–66. (in Japanese).
Ohtani, K. and Y. Akiba (1970): Studies on the change of the hydrographic conditions in the Funka Bay. I. The annual change of the water of the bay. Bull. Fac. Fish., Hokkaido Univ.,20, 303–312. (in Japanese).
Ohtani, K., Y. Akiba, Y. Yoshida and T. Ohtsuki (1971): Studies on the change of the hydrographic conditions in the Funka Bay. III. Oceanographic conditions of the Funka Bay occupied by the Oyashio Waters. Bull. Fac. Fish., Hokkaido Univ.,22, 129–142. (in Japanese).
Ohtani, K. and K. Kido (1980): Oceanographic structure in Funka Bay. Bull. Fac. Fish., Hokkaido Univ.,31, 84–114. (in Japanese).
Scarlet, R.I. (1975): A data processing method for salinity, temperature, depth profiles. Deep-Sea Res.,22, 509–515.
Whitehead, J.A., A. Leetmaa and R.A. Knox (1974): Rotating hydraulics of strait and sill flows. Geophys. Fluid Dynamics,6, 101–125.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Miyake, H., Tanaka, I. & Murakami, T. Outflow of water from Funka Bay, Hokkaido, during early spring. Journal of the Oceanographical Society of Japan 44, 163–170 (1988). https://doi.org/10.1007/BF02302640
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02302640