Articles | Volume 17, issue 4
https://doi.org/10.5194/tc-17-1609-2023
https://doi.org/10.5194/tc-17-1609-2023
Research article
 | 
13 Apr 2023
Research article |  | 13 Apr 2023

First observations of sea ice flexural–gravity waves with ground-based radar interferometry in Utqiaġvik, Alaska

Dyre Oliver Dammann, Mark A. Johnson, Andrew R. Mahoney, and Emily R. Fedders

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Cited articles

Ardhuin, F., Collard, F., Chapron, B., Girard-Ardhuin, F., Guitton, G., Mouche, A., and Stopa, J. E.: Estimates of ocean wave heights and attenuation in sea ice using the SAR wave mode on Sentinel-1A, Geophys. Res. Lett., 42, 2317–2325, https://doi.org/10.1002/2014GL062940, 2015. 
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Short summary
We investigate the GAMMA Portable Radar Interferometer (GPRI) as a tool for evaluating flexural–gravity waves in sea ice in near real time. With a GPRI mounted on grounded ice near Utqiaġvik, Alaska, we identify 20–50 s infragravity waves in landfast ice with ~1 mm amplitude during 23–24 April 2021. Observed wave speed and periods compare well with modeled wave propagation and on-ice accelerometers, confirming the ability to track propagation and properties of waves over hundreds of meters.
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