U.S.-Czech Joint Fund Research on Modelling and Numerical Computations in Geodynamics

这项由查尔斯大学的tirad Matyska博士和明尼苏达大学的David A. Yuen博士共同发起的美国-捷克联合基金研究项目的主要目标是从理论和数值方法研究固体地球物理学中的突出问题。他们将研究地幔对流和地球自转轴运动之间相互作用的问题。特别关注的将是对地幔大尺度平均流的定量评价。此外，他们将对地球内部的输运特性进行详细的反演研究，这些输运特性是通过卫星观测到的重力场和从地震学推断出的内部密度场来实现的。这将使用地震速度变化与密度变化之间关系的最新实验约束来完成。根据他们的研究结果，研究人员希望开发出适合在超级计算机上解决三维地幔对流问题的数值算法，以及用于图形和可视化所需的大型数据集的快速插值。​这项地球物理学研究实现了推进科学知识的计划目标，使美国和捷克共和国的领先专家能够结合互补的人才，并在共同感兴趣和能力强的领域汇集研究资源。该项目的资金由设在布拉格的美国-捷克联合基金按照既定准则发放。

The primary objective of this US-Czech Joint Fund research project between Dr. Ctirad Matyska, Charles University, and Dr. David A. Yuen, University of Minnesota, is to investigate outstanding questions in solid earth geophysics from theoretical and numerical approaches. They will study the problem of the interaction between mantle convection and movements of the Earth's rotational axis. Of special focus will be the quantitative evaluation of large-scale mean-flow in the Earth's mantle. Additionally they will conduct a detailed inversion study of the transport properties inside the Earth from satellite observations of the gravity field and internal density fields inferred from seismology. This will be done using the latest experimental constraints on the relationship between seismic velocity variations and density changes. Based on their results , the researchers hope to develop numerical algorithms suitable for solving three-dimensional mantle convection problems on supercomputers and for rapid interpolation of large datasets needed for graphics and visualization. This research in geophysics fulfills the program objective of advancing scientific knowledge by enabling leading experts in the U.S. and Czech Republic to combine complementary talents and pool research resources in areas of strong mutual interest and competence. Funds for the project are awarded through the US-Czech Joint Fund, Prague, in accordance with established guidelines.