Accuracy of tsunami travel‐time charts
作者:
T. S. Murty,
N. K. Saxena,
PeterW. Sloss,
PatriciaA. Lockridge,
期刊:
Marine Geodesy
(Taylor Available online 1987)
卷期:
Volume 11,
issue 2-3
页码: 89-102
ISSN:0149-0419
年代: 1987
DOI:10.1080/15210608709379552
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The tsunami travel‐time charts that are presently in use by the Tsunami Warning Center were constructed originally in 1948 based on the hydrographic data available in the mid 1940s. Even the revised charts of 1971 made use of essentially the same data. It is shown here that the travel times deduced by these charts could be in error by as much as two hours in some cases. Even worse, the compiled travel times as deduced from these charts are generally greater than the observed travel times, which is a dangerous situation from a tsunami warning point of view.
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