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本文针对2011年4月15日大连老虎滩海域发生的大幅度假潮现象,采用大连老虎滩验潮观测站及其周边验潮观测站的实时观测水位资料,分析了本次大幅度假潮现象的基本特征,探讨了本次假潮形成的初步原因。结果表明:本次假潮形成的振幅1最大达到90.01cm,震荡周期为9.8~10.4min,与老虎滩湾的固有震荡周期一致。本次假潮现象与地震、气象、风浪等因素无直接联系,初步推测认为大连老虎滩附近海域地质板块位移很可能是导致本次假潮现象的主要成因。
In this paper, according to the large-scale faltering phenomenon occurred in Laohutan waters of Dalian on April 15, 2011, the data of real-time observation of Dalian Laohutan Tide Observatory and its nearby tide-observing stations are used to analyze the basic phenomenon of this massive tide Characteristics, discusses the initial reason for the formation of this holiday. The results show that the amplitude 1 of the formation of the current wave reaches the maximum of 90.01 cm with an oscillation period of 9.8 to 10.4 minutes, which is consistent with the natural oscillation period of Laohutan Bay. The phenomenon of this quake is not directly related to earthquakes, meteorological phenomena, storms and other factors. It is preliminarily presumed that the displacement of geological plates near the sea area near Laotai Beach in Dalian may be the major cause of this phenomenon.