Simulation of double cold cores of the 35°N section in the Yellow Sea with a wave-tide-circulation coupled model

Based on the MASNUM wave-tide-circulation coupled numerical model, the temperature structure along 35°N in the Yellow Sea was simulated and compared with the observations. One of the notable features of the temperature structure along 35°N section is the double cold cores phenomena during spring and summer. The double cold cores refer to the two cold water centers located near 122°E and 125°E from the depth of 30m to bottom. The formation, maintenance and disappearance of the double cold cores are discussed. At least two reasons make the temperature in the center (near 123°E) of the section higher than that near the west and east shores in winter. One reason is that the water there is deeper than the west and east sides so its heat content is higher. The other is invasion of the warm water brought by the Yellow Sea Warm Current (YSWC) during winter.This temperature pattern of the lower layer (from 30m to bottom) is maintained through spring and summer when the upper layer (0 to 30m) is heated and strong thermocline is formed. Large zonal span of the 35°N section (about 600 km) makes the cold cores have more opportunity to survive. The double cold cores phenomena disappears in early autumn when the west cold core vanishes first with the dropping of the thermocline position.

作 者： 夏長(zhǎng)水 喬方利 張勐寧 楊永增 袁業(yè)立   作者單位： 夏長(zhǎng)水(The First Institute of Oceanography, State Oceanic Administration (SOA), Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling (MASNUM), SOA, Qingdao 266061, China;The Marine Environment College, Ocean University of China, Qingdao)

喬方利,楊永增,袁業(yè)立(The First Institute of Oceanography, State Oceanic Administration (SOA), Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling (MASNUM), SOA, Qingdao 266061, China)

張勐寧(Guest Researcher of MASNUM, SOA, China) 

刊 名： 中國(guó)海洋湖沼學(xué)報(bào)(英文版)  ISTIC SCI 英文刊名： CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY  年，卷(期)： 2004 22(3)  分類(lèi)號(hào)：   關(guān)鍵詞： temperature   The Yellow Sea   wave-tide-circulation coupled model   double cold cores  

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