Recent Posts

I currently have openings for a postdoc and/or PhD student(s) to join our growing research group in 2019. Please review current projects and contact me directly to discuss opportunities. Click here for details…


Workshop on Geospatial Data Science at the UW eScience Institute


NASA High-mountain Asia Team (HiMAT) release of 8-m resolution DEM mosaic and ~4000 DEM strips through the NSIDC DAAC


UW News press release for invited presentation on glacier mass loss in the Western U.S.


Workshop on Geospatial Data Science at the UW eScience Institute



Glacier mass balance

Geodetic glacier mass balance on a regional to continental scale using high-resolution DEMs

Snow depth and SWE

Geodetic estimates of snow depth and snow water equivalent on a regional scale

Antarctic Ice-shelf Dynamics and Ice-ocean Interaction

Understanding ice-ocean interaction and ocean-induced basal melting beneath vulnerable ice shelves

Greenland outlet glacier dynamics

Using high-resolution DEM/velocity time series to understand outlet glacier behavior

Natural Hazards

Rapid response and geodetic analysis


Satellite Stereo DEMs

Mass production of high-resolution DEMs from stereo satellite imagery

Structure from Motion (SfM)

High-resolution elevation and image data from multi-view stereo photographs

Unmanned Aerial Vehicles (UAVs)

Autonomous platforms for aerial surveys, inspections, etc.

Terrestrial Laser Scanning

Ground-based LiDAR

Terrestrial Radar Interferometry (TRI)

Ground-based radar capable of resolving mm-scale surface displacements

Image feature tracking

Horizontal displacements (velocity) from automated image correlation

Recent Publications

More Publications

. Ice shelf basal melt rates from a high-resolution DEM record for Pine Island Glacier, Antarctica. The Cryosphere Discussions, 2018, doi:10.5194/tc-2018-209, 2018.

PDF Link

. Evolution and Controls of Large Glacial Lakes in the Nepal Himalaya. Remote Sensing, 2018, doi:10.3390/rs10050798, 2018.

PDF Link

. Changes in flow of Crosson and Dotson ice shelves, West Antarctica, in response to elevated melt. The Cryosphere, 2018, doi:10.5194/tc-12-1415-2018, 2018.

PDF Link

. Quantifying Debris Thickness of Debris-Covered Glaciers in the Everest Region of Nepal Through Inversion of a Subdebris Melt Model. Journal of Geophysical Research: Earth Surface, 2018, doi:10.1029/2017JF004395, 2018.

PDF Link

. GPS-derived estimates of surface mass balance and ocean-induced basal melt for Pine Island Glacier ice shelf, Antarctica. The Cryosphere, 2017, doi:10.5194/tc-11-2655-2017, 2017.

PDF Link

. Diverse landscapes beneath Pine Island Glacier influence ice flow. Nature Communications, 2017, doi:10.1038/s41467-017-01597-y, 2017.

PDF Link

. Seasonal and interannual variability in terminus position, glacier velocity, and surface elevation at Helheim and Kangerlussuaq Glaciers from 2008 to 2016: Helheim and Kangerlugssuaq Glaciers. Journal of Geophysical Research: Earth Surface, 2017, doi:10.1002/2016JF004133, 2017.

PDF Link

. Sensitivity of Pine Island Glacier to observed ocean forcing: PIG response to ocean forcing. Geophysical Research Letters, 2016, doi:10.1002/2016GL070500, 2016.

PDF Link

. Grounding line variability and subglacial lake drainage on Pine Island Glacier, Antarctica. Geophysical Research Letters, 2016, doi:10.1002/2016GL070259, 2016.

PDF Link

. An automated, open-source pipeline for mass production of digital elevation models (DEMs) from very-high-resolution commercial stereo satellite imagery. ISPRS Journal of Photogrammetry and Remote Sensing, 2016, doi:10.1016/j.isprsjprs.2016.03.012, 2016.

PDF Link


I teach the following courses in the UW Department of Civil and Environmental Engineering:

  • Advanced Surveying (GNSS, SfM, UAVs, TLS)
  • Geospatial Data Analysis (with Python)

Students can check the UW time schedule for updates.


I’m a big proponent of free and open-source software.

Much of my code (including this website) is publicly available on github.

I use the following on a daily basis:

  • Python
  • NumPy/SciPy/Matplotlib
  • bash
  • QGIS
  • Ames Stereo Pipeline