Observation of Dense Water Cascading along the Peter the Great Bay Slope in the Northwestern Japan Sea

摘要：

　　Direct observations of dense water cascading along the slope of Peter the Great Bay with measurements of currents and oceanographic parameters by mooring systems and repeated CTD surveys implemented during winters of 2010-2012 are presented.It is shown that cascading events are usually happen in the period of February-March.Their duration and intensity vary from a few days to 3 weeks in different years.During winter 2012 a larger volume of dense shelf water has been passing over the moorings continuously in middle February - early March and a few days period in late March.These resulted in a cascading of dense water down the slope resulted in a number of intrusions of colder,less saline,higher oxygen content and turbidity water detected by CTD casts.Their thickness varied typically around 50-150 m.Most of them occurred between 200 and 700 m thus ventilating layer of intermediate high salinity water,while some signals of higher oxygen were observed down to 2000-2800 m indicating ventilation down to the bottom of the slope.Nevertheless this has not resulted in significant renewal of Japan Basin bottom waters comparable with one occurred in winter of 2001.

关键词： cascading slope convection ventilation of bottom water Peter the Great Bay Japan Sea

作者: Vyacheslav Lobanov Aleksandr Sergeev Igor Gorin Pavel Scherbinin Aleksandr Voronin Dmitry Kaplunenko Oleg Popov Timofei Gulenko

作者单位: V.I.Il’ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia, 690041

会议类型: 国际会议

会议名称: The 17th Pacific -Asian Marginal Seas Meeting(第十七届太平洋与亚洲边缘海国际会议)

会议地点: 杭州

会议语种:英文

页码: 756-762

在线出版日期: 2013-04-23（万方平台首次上网日期，不代表论文的发表时间）