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首页> 外文期刊>Journal of Geophysical Research, C. Oceans: JGR >Source of the 2007 1st meteotsunami (Adriatic Sea)
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Source of the 2007 1st meteotsunami (Adriatic Sea)

机译：2007年第1次Meteotsunami（亚得里亚海）的来源

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摘要

Siroka Bay on the island of Ist in the northern Adriatic was struck by a severe inundation around 1530 UTC on 22 August 2007. The maximum wave height reached 4 in, and substantial material damage was induced. This paper investigates the generating force of the inundation. Data analysis indicates that the inundation was provoked through a double resonance mechanism, with initiation by a pronounced atmospheric disturbance that generated open ocean waves through the Proudman resonance. The waves were then further amplified inside the affected bay. The air pressure disturbance, which propagated at a speed of about 21-24ms~(-1) over the northern Adriatic shelf, was investigated through both data analysis and atmospheric numerical modeling. Apparently, the air pressure disturbance was a surface manifestation of a ducted gravity wave, which propagated through the atmosphere from the Apennines to the eastern Adriatic coast over the northern Adriatic. According to the model simulation, the wave was trapped in a stable layer adjacent to the ground, which was capped by a dynamically unstable layer with wind speeds of about 22ms~(-1). This made the unstable layer also a critical layer for gravity waves propagating with the same speed and allowed for their ducting in the layer below.
机译：亚得里亚海北部Ist岛上的Siroka湾在2007年8月22日世界标准时间1530左右被严重淹没。最大波高达到4英寸，造成了实质性的物质破坏。本文研究了洪水的产生力。数据分析表明，这种淹没是通过双重共振机制引起的，最初是由明显的大气干扰引发的，该大气干扰通过Proudman共振产生了开放的海浪。然后，波在受影响的海湾内进一步放大。通过数据分析和大气数值模拟研究了北亚得里亚海陆架以约21-24ms〜（-1）的速度传播的气压扰动。显然，气压扰动是导管重力波的表面表现，该重力波通过大气从亚平宁山脉传播到亚得里亚海北部的亚得里亚海东部海岸。根据模型模拟，波浪被困在与地面相邻的稳定层中，并被风速约为22ms〜（-1）的动态不稳定层所覆盖。这使得不稳定层也成为以相同速度传播的重力波的关键层，并允许它们在下面的层中导流。

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