中文摘要：

塑造耳朵的热前面(ESTF ) ，由黄海温暖的水流(YSWC ) 和山东沿海的水流(SCC ) 的集中形成了，在冬季是在黄海(YS ) 的很重要的海洋的现象。在所有表明的 situ 大小和分析数据集， ESTF 在 1950s-1990s，和一个类似的变弱趋势期间一直在变弱，这是也在 YS 上在冬季季风发现。数字实验证明变弱冬季季风能沿着瓷器海岸和向南方的异常水流与向北方异常的水流在多十的 timescale 上在 YS 导致异常发行量在里面中央对季节的吝啬的循环 YSgenerally 相反。异常发行量引起 YSWC 和 SCC 的减速，并且因此削弱 ESTF。因为 ESTF 在地区性的海洋动力学和由空至海的相互作用起重要作用，它变弱在冬季在 YS 为地区性的气候有重要含意。

英文摘要：

The ear-shaped thermal front （ESTF）, formed by the convergence of the Yellow Sea Warm Current （YSWC） and the Shandong Coastal Current （SCC）, is a very important oceanic phenomenon in the Yellow Sea （YS） in winter. In situ measurements and reanalysis datasets all demonstrate that the ESTF has been weakening during 1950s-1990s, and a similar weakening trend is also found in winter monsoon over the YS. Numerical experiments show that the weakening of winter monsoon can induce an anomalous circulation in the YS on multi-decadal timescale with northward anomalous currents along China＇s coast and southward anomalous currents in the central YS--generally opposite to seasonal mean circulation. The anomalous circulation causes slowdown of the YSWC and the SCC, and thus weakens the ESTF. Since the ESTF plays important roles in regional ocean dynamics and air-sea interactions, its weakening has important implications for regional climate in the YS in winter.