Copyright © The Oceanographic Society of Japan. Strong Tidal Mixing and Ventilation of Cold Intermediate

• Main Authors: Water At Kashevarov Bank, Sea Of Okhotsk, Konstantin A. Rogachev, Eddy C. Carmack, Alexandr S. Salomatin
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2000
• Subjects: Kashevarov Bank; Okhotsk; okhotsk sea
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.612.6813; http://www.terrapub.co.jp/journals/JO/pdf/5604/56040439.pdf

Tidal mixing at the Kashevarov Bank, Sea of Okhotsk, has been investigated using observations of bottom pressure and currents. The tides are dominated by the diur-nal constituents. The water motion over the Bank is predominantly controlled by strong diurnal tidal currents, which bring cold water on the bank from its source, a cold intermediate layer. The temperature fluctuations are about 1.2°C at the southern edge of the bank. The maximum observed velocity is about 164 cm/s at the top of the bank. A superposition of the original diurnal constituents K1 and O1 reveals a strong fort-nightly (Mf) variability of the current speed. Tidal-induced mixing is responsible for ventilation of the cold intermediate layer of the Sea of Okhotsk. Strong tidal mixing creates a well-defined tidally mixed front around the bank. This front acts like a bar-rier separating well-mixed water on the bank from stratified water on its flanks. There is a residual current of the order of 10 cm/s. tral Okhotsk Sea and the vertically well-mixed waters in areas of strong tidal mixing. The coldest, most saline bot-tom water occurs at depths of 150–200 m on the North-