Re-evaluating source mechanisms for the 1998 Papua New Guinea tsunami using revised slump estimates and sedimentation modeling
Re-evaluating source mechanisms for the 1998 Papua New Guinea tsunami using revised slump estimates and sedimentation modeling
复制标题
使用修订的坍落度估计和沉积模型重新评估 1998 年巴布亚新几内亚海啸的来源机制
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
G. Gelfenbaum
中科院分区：
文献类型：
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作者：
V. Titov;G. Gelfenbaum
1998年7月17日巴布亚新几内亚海啸的震源机制的性质仍有争议。以前的调查（Titov和Gonzalez，1998年）使用数值模型来研究海啸的滑坡和构造模型来源之间的差异，这项研究未能找到确凿的证据，将有利于生成机制之一。我们重新审视了这个问题，使用新的科学信息作为模型的输入：滑塌生成现在符合从地震剖面重建的模型，网格中使用了新的测深和地形数据。将讨论由构造和/或滑塌产生机制引起的洪水的独特特征，并将模型的上升流量估计值与用于解释现场数据的海啸沉积模型得出的估计值进行比较。
The nature of the source mechanism for the 17 July 1998 Papua New Guinea tsunami continues to be controversial. A previous investigation (Titov and Gonzalez, 1998) used a numerical model to examine differences between landslide and tectonic model sources for the tsunami; this study failed to find conclusive evidence that would favor one of the generation mechanisms. We have revisited the problem, using new scientific information as input to the model: slump generation now conforms to a model reconstructed from seismic profiles and new bathymetric and topographic data are used in the grids. Distinct features of the inundation caused by tectonic and/or slump generation mechanisms will be discussed, and model run-up flow estimates will be compared with estimates derived by a tsunami sedimentation model used to interpret field data.