The study on seasonal characteristics of water masses in the western East China Sea shelf area

ZHANG Qilong; LIU Hongwei; QIN Sisi; YANG Dezhou; LIU Zhiliang

doi:10.1007/s13131-014-0556-9

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Article Navigation > Acta Oceanologica Sinica > 2014 > 33(11): 64-74

ZHANG Qilong, LIU Hongwei, QIN Sisi, YANG Dezhou, LIU Zhiliang. The study on seasonal characteristics of water masses in the western East China Sea shelf area[J]. Acta Oceanologica Sinica, 2014, 33(11): 64-74. doi: 10.1007/s13131-014-0556-9

Citation:

ZHANG Qilong, LIU Hongwei, QIN Sisi, YANG Dezhou, LIU Zhiliang. The study on seasonal characteristics of water masses in the western East China Sea shelf area[J]. Acta Oceanologica Sinica, 2014, 33(11): 64-74. doi: 10.1007/s13131-014-0556-9

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The study on seasonal characteristics of water masses in the western East China Sea shelf area

doi: 10.1007/s13131-014-0556-9

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves (KLOCAW), Chinese Academy of Sciences, Qingdao 266071, China
2.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves (KLOCAW), Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2013-11-20
Rev Recd Date: 2014-07-08

Abstract

Abstract

On the basis of the CTD data and the modeling results in the winter and summer of 2009, the seasonal characteristics of the water masses in the western East China Sea shelf area were analyzed using a cluster analysis method. The results show that the distributions and temperature-salinity characteristics of the water masses in the study area are of distinct seasonal difference. In the western East China Sea shelf area, there are three water masses during winter, i.e., continental coastal water (CCW), Taiwan Warm Current surface water (TWCSW) and Yellow Sea mixing water (YSMW), but four ones during summer, i.e., the CCW, the TWCSW, Taiwan Warm Current deep water (TWCDW) and the YSMW. Of all, the CCW, the TWCSW and the TWCDW are all dominant water masses. The CCW, primarily characterized by a low salinity, has lower temperature, higher salinity and smaller spatial extent in winter than in summer. The TWCSW is warmer, fresher and smaller in summer than in winter, and it originates mostly from the Kuroshio surface water (KSW) northeast of Taiwan, China and less from the Taiwan Strait water during winter, but it consists of the strait water and the KSW during summer. The TWCDW is characterized by a low temperature and a high salinity, and originates completely in the Kuroshio subsurface water northeast of Taiwan.
- East China Sea,
- water mass,
- seasonal characteristics,
- Taiwan Warm Current water

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