18 Papers
131 Citations
A. Gelvin is an academic researcher from Cold Regions Research and Engineering Laboratory. The author has contributed to research in topics: Snow & Permafrost. The author has an hindex of 9, co-authored 18 publications.
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Papers
Comparing aerial lidar observations with terrestrial lidar and snow‐probe transects from NASA's 2017 SnowEx campaign
William Ryan Currier,J. M. Pflug,Giulia Mazzotti,Tobias Jonas,Jeffrey S. Deems,Kat J. Bormann,Thomas H. Painter,Christopher A. Hiemstra,A. Gelvin,Zach Uhlmann,Lucas P. Spaete,Nancy F. Glenn,Jessica D. Lundquist +12 more
TL;DR: In this paper, a comparison between gridded Airborne laser scans (ALS), Terrestrial Laser Scans (TLS), and snow-probe transects was made for a comparison of snow depth measurement techniques.
Recent degradation of interior Alaska permafrost mapped with ground surveys, geophysics, deep drilling, and repeat airborne lidar
Thomas A. Douglas,Christopher A. Hiemstra,Christopher A. Hiemstra,John E. Anderson,Robyn A. Barbato,K. Bjella,Elias J. Deeb,A. Gelvin,Patricia E. Nelsen,Stephen D. Newman,Stephanie P. Saari,Anna M. Wagner +11 more
TL;DR: In this paper, a study was conducted from 2013 to 2020 along four 400 to 500'm long transects near Fairbanks, Alaska, using LIDAR and electrical resistivity tomography (ERT) to measure top-down and bottom-up permafrost thaw and map thermokarst development.
Tree canopy and snow depth relationships at fine scales with terrestrial laser scanning
Ahmad Hojatimalekshah,Zachary Uhlmann,Nancy F. Glenn,Christopher A. Hiemstra,C. Tennant,Jake D. Graham,Lucas P. Spaete,A. Gelvin,Hans-Peter Marshall,James P. McNamara,Josh Enterkine +10 more
TL;DR: In this paper, the authors investigated the role of tree structure in controlling snow depth under tree canopies and in open areas, as well as the control from wind and topography.
Performance characteristics of a new electronic snow water equivalent sensor in different climates
TL;DR: The US Army ERDC CRREL and the US Department of Agriculture Natural Resources Conservation Service developed a square electronic snow water equivalent (e-SWE) sensor as an alternative to using fluid-filled snow pillows to measure SWE.
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Permafrost Degradation and Subsidence Observations during a Controlled Warming Experiment
Anna M. Wagner,Nathaniel J. Lindsey,Shan Dou,A. Gelvin,Stephanie P. Saari,Christopher R. Williams,Ian Ekblaw,Craig Ulrich,Sharon Borglin,Alejandro Morales,Jonathan B. Ajo-Franklin +10 more
TL;DR: The design, execution, and initial results from the first decameter-scale controlled thawing experiment, targeting coupled thermal/mechanical response, particularly the temporal sequence of surface subsidence relative to permafrost degradation at depth are presented.