Taking on Frozen Debris Lobes—Permafrost Experts, DOT Engineers Team Up in First-of-its-Kind Study

University of Alaska

doi:10.21949/1528889

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Taking on Frozen Debris Lobes—Permafrost Experts, DOT Engineers Team Up in First-of-its-Kind Study

[PDF-2.09 MB]

English

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Details:

Corporate Creators:

University of Alaska
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program
Subject/TRT Terms:

[+]

Analysis Monitoring Permafrost
Series:

UTC Spotlight Newsletter
DOI:

https://doi.org/10.21949/1528889
Resource Type:

Brief
Right Statement:

Public Domain
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
Abstract:

In the fall of 2012, a research group headed by Darrow and Daanen teamed-up with a drill crew from the Alaska DOT&PF to conduct two field investigation trips. In 2008, Daanen received a seed grant from Alaska EPSCoR3 to measure FDL-A's movement. This preliminary study resulted in the first publication on FDLs and established awareness of the current conditions and movement. The team had several goals: determine FDL-A's soil and bedrock profile; assess its thickness and stratigraphy; and install instruments and a weather station for measuring local weather, temperature, water pressure, and slope movement. They found that FDL-A was "fairly homogenous, consisting of silty sand with gravel."4 They drilled multiple borings and returned to conduct manual measurements and download meteorological data. On later trips, they also placed a series of GPS markers, enabling them to monitor FDL-A's biweekly movement. They have realized a variety of data, movement, and subsurface dynamics that have given rise to even more questions about the lobe.
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PDF
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha256:e28ccf49d6cd54aa27cc7f3d5d345a11568f10f016ca8847f29f0950d34aaa5f
Download URL:

https://rosap.ntl.bts.gov/view/dot/67779/dot_67779_DS1.pdf
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Taking on Frozen Debris Lobes—Permafrost Experts, DOT Engineers Team Up in First-of-its-Kind Study

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