New methods of fitting the membership function of oceanic water masses |
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| Authors: | Li Fengqi Xie Jun Li Yao |
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| Affiliation: | 1. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P.R. China;Laboratory of Marine Environmental Science and Ecology, Ocean University of China, Qingdao 266003, P.R. China
2. College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P.R. China |
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| Abstract: | After reviewing the analytical theories of T S curve, some methods of T S relationship, and fuzzy sets for studying water masses, new methods of fitting the membership function of oceanic water masses are presented based on the characteristics of T S curve family of oceanic water masses. The membership functions of oceanic Subsurface Water Mass with high salinity and Intermediate Water Mass with low salinity are fitted and discussed using the new methods. The proposed methods are useful in analyzing the mixing and modifying processes of these water masses, especially in tracing their sources. The principles and formulae of the new methods and examples are given. |
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| Keywords: | water mass T-S curve fuzzy sets membership function the South China Sea (SCS) Bashi Channel (Luzon Strait) |
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