Articles | Volume 12, issue 2
Research article
07 Feb 2018
Research article |  | 07 Feb 2018

Decadal changes of surface elevation over permafrost area estimated using reflected GPS signals

Lin Liu and Kristine M. Larson


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Lin Liu on behalf of the Authors (16 Dec 2017)  Author's response    Manuscript
ED: Publish as is (02 Jan 2018) by Claude Duguay
Short summary
We demonstrate the use of reflected GPS signals to measure elevation changes over a permafrost area in northern Alaska. For the first time, we construct a daily-sampled time series of elevation changes over 12 summers. Our results show regular thaw subsidence within each summer and a secular subsidence trend of 0.3 cm per year. This method promises a new way to utilize GPS data in cold regions for studying frozen ground consistently and sustainably over a long time.