A double-halocline structure in the Canada Basin of the Arctic Ocean  

作　　者：SHI Jiuxin ZHAO Jinping LI Shujiang CAO Yong QU Ping 

机构地区：[1]First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266003, China College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266003, China College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266003, China Shanghai Oceanic Environment Forecast Center, State Oceanic Administration, Shanghai 200137, China

出　　处：《Acta Oceanologica Sinica》2005年第6期25-35,共11页海洋学报（英文版）

基　　金：supported by the National Natural Science Foundation of China under contract Nos 40306005 and 40376007.

摘　　要：A year-round halocline is a particular hydrographic structure in the upperArctic Ocean. On the basis of an analysis of the hydrographic data collected in the Arctic Ocean, itis found that a double-halocline structure exists in the upper layer of the southern Canada Basin,which is absolutely different from the Cold Halocline Layer (CHL) in the Eurasian Basin. ThePacific-origin water is the primary factor in the formation of the double-halocline structure. Theupper halocline lies between the summer modification and the winter modification of thePacific-origin water while the lower halocline results from the Pacific-origin water overlying uponthe Atlantic-origin water. Both haloclines are all the year-round although seasonal and interannualvariations have been detected in the historical data.A year-round halocline is a particular hydrographic structure in the upperArctic Ocean. On the basis of an analysis of the hydrographic data collected in the Arctic Ocean, itis found that a double-halocline structure exists in the upper layer of the southern Canada Basin,which is absolutely different from the Cold Halocline Layer (CHL) in the Eurasian Basin. ThePacific-origin water is the primary factor in the formation of the double-halocline structure. Theupper halocline lies between the summer modification and the winter modification of thePacific-origin water while the lower halocline results from the Pacific-origin water overlying uponthe Atlantic-origin water. Both haloclines are all the year-round although seasonal and interannualvariations have been detected in the historical data.

关 键 词：halocline  salinity pacific-origin water canada basin arctic ocean 

分 类 号：P7[天文地球—海洋科学]