Overview
I am a PhD candidate with the Department of Earth and Space Sciences at the University of Washington, in Seattle. I collaborate with members from the glaciology group, the seismology group and the Polar Science Center at the Applied Physics Lab.

My research primarily concerns the transient mechanical response of ice sheets and glaciers to surface meltwater. My field areas include both Greenland and Antarctica. In Greenland, I am integrating space-borne observations with seismic data to construct a high resolution history of basal sliding for the Greenland Ice Sheet. The recent report [Das & Joughin, 2008] that speedup events follow drainage from supraglacial lakes there suggest that sliding models for alpine glaciers may be representative of sliding of Greenland's Ice Sheets when high meltwater volumes are present. In Antarctica, I am using seismic and meterological data to constrain possible meltwater effects upon calving rates and possible basal sliding of Taylor Glacier, a dry-based polar glacier in the Dry Valleys. Taylor is observed to have a brine subglacial hydraulic system that may permit as least some basal sliding in certain locations.

In each component of my research, I use and develop signal processing methods involving elements of vector space projections. In particular, I use conic decomposition and convex set projections to synthesize seismograms in terms of physically interpretable signals.

My Greenland research is currently supported by the NESSF NASA fellowship program.

Background:
I graduated Magna Cum Laude from WSU in May 2004 with a B.S. in physics. I spent a year in the UW Applied Math department, earned a Masters degree, and now enjoy applying what I learned to some subglacial problems.

Aside from science, I enjoy spending time with my wife, doing anything outside, and seeing punk rock shows.

Last Up-dated, 04/2009

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