Workshop on Seafloor Deformation Models, May 1997

9713299 Synolakis这项行动是为了支持组织为期两天的海底地面变形模型研讨会。讲习班将于1997年5月14日至15日在卡塔利纳岛南加州大学海洋科学站举行。讲习班的目的是研究界面地震学和海啸流体动力学的最新进展；特别是，从地震记录中推断出的海底位移的初始条件是否足以进行海啸累积计算。尽管在水动力学方面取得了重大进展，但这些进展几乎完全集中在对淹没计算的改进上。与此同时，尽管地震学取得了一些进展，但这些进展并没有被流体力学界所吸收。因此，流体动力学建模者使用非常复杂的海岸线计算，而在最好的情况下，使用的是基于已经存在了20多年的位错理论的初始条件。此外，流体力学计算对更好地定义地面变形的有用性需要地震学界更好地理解。由于目前正在使用海啸累积计算来准备美国西海岸的淹没地图，因此确定地面变形的问题至关重要。研讨会的目标是为地震学家和水动力学家提供一个讨论进展的论坛，并确定短期研究需要，以便更好地利用各自的结果。在每次为期一天的讨论中，目标是确定关键问题，试图回答现有知识范围内的所有标准问题，并发现需要更广泛研究的领域。在讲习班结束时，预计海啸研究界将处于一个更好的位置，以一种持续的方式关注其余的问题，这些问题的答案需要更好地量化海底压力传感器记录向海啸预警系统提供的输入。

9713299 Synolakis This action is to support the organization of a two-day workshop on seafloor ground deformation models. The workshop is to be held at the University of Southern California Marine Science Station on Catalina Island, 14-15 May 1997. The objective of the workshop is to examine the state-of-the- art of interfacial seismology and tsunami hydrodynamics; in particular, whether the initial conditions for the seafloor displacement inferred from seismic records are adequate for tsunami runup computations. Whereas there have been significant advances in hydrodynamics, these advances have concentrated almost entirely and appropriately on the refinement of the inundation computations. At the same time, despite anecdotal advances in seismology, these advances have not been absorbed by the hydrodynamics community. As a result, hydrodynamics modelers use very elaborate shoreline computations, while using -- at the very best -- initial conditions based on a dislocation theory which has been in existence for twenty years or more. Also, the usefulness of the hydrodynamics computations to better define the ground deformation needs to be better understood by the seismology community. Since inundation maps for the west coast of the US are currently being prepared using tsunami runup computations, the question of the determination of the ground deformation is critically important. It is the objective of the workshop to provide a forum for seismologists and hydrodynamicists to discuss advances, and to identify short-term research needs to better use the respective results. In each of the one-day discussions, the objective is to identify critical issues, to attempt to answer all the criteria questions which lie within the present state-of-knowledge, and to discover areas requiring more extensive study. At the conclusion of the workshop, it is expected that the tsunami research community will be in a better position to focus -- in a continuing way -- on the r emaining questions whose answers are needed to quantify better the input provided by ocean-bottom pressure transducer recordings to tsunami warning systems.