Yaoguo Li - Research Interests

My research interests are in inverse theory and its application in the interpretation of geophysical data sets arising from resources exploration and production, environmental, and geotechnical problems. My main focus has been in developing practical algorithms for inverting gravity, magnetic, DC resistivity, and induced polarization data to reconstruct three-dimensional distribution of physical properties. I have been actively working on individual inversion methods as well as joint and cooperative strategies for inverting multiple sets of geophysical and geological data.

Within the context of geophysical inversion, I have also been interested in applying recently-developed numerical techniques in the neighboring disciplines to geophysical inversions. For instance, the interior-point method that revolutionized the field of optimization provides an ideal vehicle for incorporating a multitude of prior constraints into geophysical inversions. Incorporation of prior information specific to each data set allows one to construct models that are more representative of true geology. The newly-developed mathematical techniques such as wavelet transforms enables one to develop fast forward modeling methods for different geophysical data sets and allows one to solve inverse problems of much larger size than was possible by conventional approaches.

My recent research activity has been focused on the processing and inversion of multi-component gravity gradiometry data within the Gravity and Magnetics Research Consortium (GMRC). GMRC is a newly formed consortium at the Colorado School of Mines for carrying out sponsored research in gravity and magnetic methods in resource exploration and production.

The following are some of my past and current research projects:

Last update: March 18, 2000.