Karachi tides during the 1945 Makran tsunami
Karachi tides during the 1945 Makran tsunami
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1945 年莫克兰海啸期间的卡拉奇潮汐
作者：
L. Adams;B. F. Atwater;H. Hasan
本文扩展和detides一个卡拉奇验潮记录作为评估印度洋海啸风险的观测基础。扩展的Marigram包括当地时间11月28日早些时候发生的1945年Makran大地震以及随后持续到11月29日的海啸。该Marigram先前作为地震后1小时开始的9小时摘录发布。这里提供的完整Marigram涵盖了从11月15日到12月1日的17天。差距包括海啸引起的停电，这可能有助于解释为什么测量的最高水位比附近报告的最高水位低1米。测潮方法计算参考潮汐曲线，忽略11月28日和29日的所有观测。在这两天内，参考潮汐是根据英国海军部潮汐表，其次是根据前后测量的高沃茨和低沃茨确定的。与之前的估计一样，退潮后的海啸峰值比环境潮汐高出约0.5米，但现在有可能是测量仪没有记录到更高的海浪。第一次描述的异常包括一个早期的异常，它可能是由卡拉奇潮汐站的公认问题造成的，但它可能代表了地震前兆。
This paper extends and detides a Karachi tide-gauge record as an observational basis for assessing Indian Ocean tsunami risk. The extended marigram encompasses the time of the great 1945 Makran earthquake of early November 28, local time, and of the ensuing tsunami, which continued into November 29. The marigram was published previously as a 9-h excerpt that begins 1 h after the earthquake. The full marigram presented here covers most of 17 days from November 15 to December 1. Gaps include a tsunami-induced outage that may help explain why the highest water level gauged is 1 m below the maximum water level reported nearby. The detiding method computes a reference tidal curve that disregards all observations from November 28 and 29. For those 2 days, the reference tide is guided by Admiralty tide tables and, secondarily, by high waters and low waters gauged before and after. As in previous estimates, the detided tsunami crests about 0.5 m above ambient tide, but now with the possibility that the gauge failed to record a higher wave. Anomalies described for the first time include an early one that likely resulted from a recognized problem with the Karachi tide station, but which might instead represent an earthquake precursor.
1945 年莫克兰海啸对阿拉伯海（北印度洋）海岸线的影响 - 回顾
DOI：
10.1127/0372-8854/2013/s-00134
发表时间：
1945
期刊：
影响因子：
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作者：
Hoffmann;Rupprechter;Al Balushi;Grützner;Reicherter
通讯作者：
Reicherter