Featured Publications

Nature Geoscience, 2020

Journal of Geophysical Research: Earth Surface, 2016

Selected Publications

. The state of rock debris covering Earth's glaciers. Nature Geoscience, 2020.

PDF Dataset Project Supplemental

. Automated detection of ice cliffs within supraglacial debris cover. The Cryosphere, 2018.

PDF Code

. Automated detection of unstable glacier flow and a spectrum of speedup behavior in the Alaska Range. Journal of Geophysical Research: Earth Surface, 2016.

PDF Supplemental

. Satellite observations show no net change in the percentage of supraglacial debris-covered area in northern Pakistan from 1977 to 2014. Journal of Glaciology, 2015.


. Derivation and analysis of a complete modern-date glacier inventory for Alaska and northwest Canada. Journal of Glaciology, 2015.



Debris Cover Tools

Open-source Python/ArcPy toolkit for debris cover research

Global scale analyses and products

Publicly available datasets: a refined and consistent version of the RGI and a global debris cover map

Landslides on glaciers

Half hobby, half research interest: visiting supraglacial landslides in the Alaska Range

Thermal imagery in glaciology

High resolution thermal data for glacier and debris cover research







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I wrote a short commentary in the February 2020 edition of Trail Runner Magazine on the tangible evidence of a changing climate someone running in an alpine setting will encounter.


For the past 1.5 years I have been coaching runners online, from beginners to contenders in international trail races. My full access coaching (meaning we touch base every day) is centered around enjoying the process of running while building a sustainable volume of kilometers/miles per week that accumulate into shockingly high numbers over months and years. I coach runners in Alaska, New York, England and Switzerland. Send me an email if you’d like to know more!