Seismic Waveform Imaging and Inversion

我研究从地震波形数据中提取高分辨率、定量的空间图像的先进方法。我寻求在地球物理波形反演的基本理论、数值和计算方面取得进展。目标是开发一套用于地质和商业项目的高分辨率方法，通过追求以下两条相辅相成的道路： 1.模拟波浪传播的数值和计算方法。 2.提出和求解反问题的理论和计算方法。 我们在数值和理论计算领域的成功将被用来实现 在各种有趣的、具有挑战性的、在许多情况下具有重要商业意义的问题上的应用研究。例如，为了解大地震和海啸的性质而对俯冲带进行成像，对加拿大的经济矿化带进行成像，利用加拿大和国际上的陆地和海洋勘探数据进行石油勘探，以及对近地表岩土工程和地质环境问题进行地震成像。 因此，该项目部署了NSERC Discovery Grant基金，以使地球物理波形反演的基本理论、数值和计算方面取得进展，始终以利用这些进展为实际数据问题提供解决方案为目标，同时获得科学和商业利益。该项目将为博士后、研究生和本科生级别的高素质人员提供重要的培训和经验。

I research advanced methods for extracting high resolution, quantitative, spatial images from seismic waveform data. I seek advances in fundamental theoretical, numerical, and computational aspects of geophysical waveform inversion. The objective is the development of a suite of high-resolution methodologies for use in geological and commercial projects, through the pursuit of the following two complementary paths: 1. Numerical and computational methods in modelling wave propagation. 2. Theoretical and computational methods for posing and solving the inverse problem. Our successes in the numerical and theoretical computational fields will be leveraged to enable applied research in a wide range of interesting, challenging, and in many cases commercially important problems. Examples include the imaging of subduction zones with a view to understanding the nature of major earthquakes and tsunamis, imaging of economic mineralization zones in Canada, petroleum exploration using both land and marine exploration data in Canada and internationally, and seismic imaging for near-surface geotechnical and geoenvironmental problems. The project thus deploys NSERC Discovery Grant funding to enable progress to be made on fundamental theoretical, numerical, and computational aspects of Geophysical Waveform Inversion, always with the goal of leveraging these advances to provide solutions to real data problems, with both scientific and commercial benefits. The project will provide significant training and experience for Highly Qualified Personnel at the postdoctoral, postgraduate, and undergraduate levels.