Seasonal InSAR thaw subsidence and frost heave time series in central and western Spitsbergen, Svalbard

We used Sentinel-1 Synthetic Aperture Radar Interferometry (InSAR) to measure the ground surface displacements in the permafrost landscape of Svalbard. The InSAR products document thaw subsidence and frost heave related to the seasonal active layer thawing and freezing in 2017. The displacement time...

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Bibliographic Details
Main Authors: Rouyet, Line, Liu, Lin, Strand, Sarah Marie, Christiansen, Hanne Hvidtfeldt, Lauknes, Tom Rune, Larsen, Yngvar
Format: Dataset
Language:English
Published: Zenodo 2021
Subjects:
Permfrost
Active Layer
InSAR
Time series
Ground displacement
Arctic
Svalbard
Ny-Ålesund
Norway
Kap
Adventdalen
Kapp Linné
Ny Ålesund
permafrost
Spitsbergen
Online Access:https://dx.doi.org/10.5281/zenodo.4775397
https://zenodo.org/record/4775397
Description
Summary:We used Sentinel-1 Synthetic Aperture Radar Interferometry (InSAR) to measure the ground surface displacements in the permafrost landscape of Svalbard. The InSAR products document thaw subsidence and frost heave related to the seasonal active layer thawing and freezing in 2017. The displacement time series were used to extract the timing of the seasonal thaw subsidence maxima at the regional scale. We analysed three study areas in central and western Spitsbergen (78–79°N, 11–16°E): Adventdalen (ADV), Kapp Linné (KAP) and Ny-Ålesund (NYA). The dataset consists of one .csv file for each study area, which includes June–November 2017 InSAR displacement time series, the identified subsidence maxima and their corresponding Day of Year (DOY) for all the documented pixels. Details about processing and file attributes are described in the Readme pdf document included in the dataset folder. : The study is part of Rouyet's Ph.D. research project FrostInSAR (2017–2021) funded by the Space Research Programme of the Research Council of Norway (grant 263005). The development of the GSAR processing chain and previous research applying InSAR in the Norwegian periglacial environment have been supported by the Norwegian Space Centre, the European Space Agency and the Research Council of Norway. L. Liu was supported by the Hong Kong Research Grants Council (CUHK14305618).

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