Data availability for the manuscript “An emerging Arctic hazard: Two large and potentially tsunamigenic paraglacial landslides in West Greenland”

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Data availability for the manuscript “An emerging Arctic hazard: Two large and potentially tsunamigenic paraglacial landslides in West Greenland”
Keiding, Marie; Løvholt, Finn; Glimsdal, Sylfest; Svennevig, Kristian; Citterio, Michele; Jakobsen, Jakob, 2026, "Data availability for the manuscript “An emerging Arctic hazard: Two large and potentially tsunamigenic paraglacial landslides in West Greenland”", https://doi.org/10.22008/FK2/7EDRDC, GEUS Dataverse, V1
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Description
GNSS data
Processed time series are provided as text files and figures. For the base station (GNSS-3), the positions are calculated using Precise Point Positioning. For each other station (GNSS-1, GNSS-2, GNSS-4, GNSS-5, GNSS-6), we calculated the daily baseline vectors from the base station to the station.

Oblique images
Oblique images taken from helicopter of Karrat in 2021 and Kangerluarsuk. In 2015 and 2021.

InSAR data
Persistent Scatterer Interferometry (PSI) time series for 2017–2022 are provided for the Karrat and Kangerluarsuk study areas.

Bathymetri
Bathymetry covering the Uummannaq fjord in 100 m resolution for the tsunami propagation model, produced from the following sources:
1. XYZ bathymetry data supplied by Kelly Hogan (BAS/ SPRI) from UK research cruise JR175 covering the Disko-Karrat region (Hogan et al., 2012).
2. BedMachineV3 (Morlighem et al., 2017) regional 100 m resolution bathymetric grid.

References:
Hogan, K., Dowdeswell, J., Cofaigh, C., 2012. Glacimarine sedimentary processes and depositional environments in an embayment fed by West Greenland ice streams. Marine Geology 311-314, 1-16.
Morlighem, M., et al., 2017. BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. Geophys. Res. Lett. 44, 11051-11061.
Subject Earth and Environmental Sciences
Notes Data for a publication in review. Citation will be updated after publication.
License/Data Use Agreement

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Kangerluarsuk_PSI_2017-2022.zip
InSAR/Shapefile as ZIP Archive - 23.4 MB
Published Aug 7, 2026
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MD5: 5c13f2b5b5317295b3ab56e9bfdfe47b
Karrat_PSI_2017-2022.zip
InSAR/Shapefile as ZIP Archive - 23.3 MB
Published Aug 7, 2026
0 Downloads
MD5: 1293cdf4ba5d5acb1fed50165c867e0d
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