Seismic Waveform Imaging and Inversion

我研究从地震波形数据中提取高分辨率、定量、空间图像的先进方法。我寻求地球物理波形反演的基本理论，数值和计算方面的进展。目标是通过以下两条相辅相成的途径，开发一套用于地质和商业项目的高分辨率方法： 1.模拟波浪传播的数值和计算方法。 2.提出和解决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利用， 在广泛的应用研究有趣的，具有挑战性的，在许多情况下商业上重要的问题。实例包括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NSERC发现补助金资金，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目标，为真实的数据问题提供解决方案，同时具有科学和商业效益。该项目将为博士后，研究生和本科生层次的高素质人才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.