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

Liu, Lin; Larson, Kristine M.

doi:https://doi.org/10.5194/tc-12-477-2018

Articles | Volume 12, issue 2

https://doi.org/10.5194/tc-12-477-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-12-477-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

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

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Final revised paper (published on 07 Feb 2018)
Preprint (discussion started on 04 Aug 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Comments', Anonymous Referee #1, 07 Sep 2017
- AC1: 'Response to Reviewer 1', Lin Liu, 16 Dec 2017
RC2: 'Review', Anonymous Referee #2, 31 Oct 2017
- AC2: 'Response to Reviewer 2', Lin Liu, 16 Dec 2017
AC3: 'Revised manuscript with changes highlighted', Lin Liu, 16 Dec 2017

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

AR by Lin Liu on behalf of the Authors (02 Jan 2018)

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.