Research

Hughes and Williams 2010 (PDF) treated sea level spectra as light spectra. I and my co-authors applied their methodology to GRACE, revealing the first “full color” GRACE maps and comparing them to the Noah/GLDAS water storage model. (more…)

This research was presented at the 2012 AGU Fall Meeting and published in 2015. Here are data for some of the paper’s figures

My previous research into Arctic ocean tides has been extended to solve for global ocean tides using GRACE satellite acceleration data. This research was presented at the 2011 Fall AGU and the 2012 Ocean Sciences conferences. (more…)

From 2007 to 2011, I used GRACE satellite acceleration data to recover Arctic ocean tides. My advisor Prof. John Wahr provided invaluable guidance, as did our colleagues from JPL: Dr. Shailen Desai, Dr. Dah-Ning Yuan and Dr. Michael Watkins.

Here’s the source code. (more…)

At the physics department of the University of Colorado and CIRES, I worked with Dr. Sean Swenson, Dr. John Wahr and Dr. Matt Rodell to study large-scale hydrology using GRACE measurements of Earth’s time-variable gravity field. (more…)

While working at the Oregon Center for Optics, I studied transverse spatial Wigner functions of light with Dr. Michael Raymer and Dr. Brian Smith. (more…)

When I arrived at the University of Oregon, Dr. Rudy Hwa had been studying EEG signals for some time. He was looking for a way to use these signals to diagnose ischemic strokes. MRI scanners can already do this, but they’re much more expensive and much less portable than a skullcap of electrodes. (more…)