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

Data sets

Surface elevation changes near Barrow (Alaska) measured using reflected GPS signals Lin Liu and Kristine M. Larson https://doi.org/10.1594/PANGAEA.885935

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.