- 1Faculty of Earth Sciences, University of Iceland, Reykjavik, Iceland (jol16@hi.is)
- 2Natural Science Institute of Iceland, Akranes, Iceland
- 3Icelandic Meteorological Office, Reykjavik, Iceland
Changes in glacial loading of Mýrdalsjökull icecap impact the dynamic behavior of the subglacial volcano Katla. Here, we are quantifying the glacial changes since 2010 with a daily resolution. This will improve the understanding of Katla's response to both, long-term and seasonal changes.
To reconcile the temporally sparse but highly accurate data from spaceborne altimetry (ArcticDEM, Pléiades and IceSat2) with the higher temporal resolution surface mass balance products derived from the weather reanalysis CARRA, we apply a geographically weighted linear regression. This approach helps estimate biases in the reanalysis product and the divergence in glacial flow.
We demonstrate that residuals from this process are effective in identifying anomalies in glacial behavior, such as surges or geothermal activity.
How to cite: Liebsch, J., Aðalgeirsdóttir, G., Belart, J. M. C., Magnússon, E., Pálsson, F., and Parks, M.: Spatio-Temporal Mass Changes of the Mýrdalsjökull Icecap (Iceland) since2010: Insights from high-Resolution Statistical Modelling., EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-17705, https://doi.org/10.5194/egusphere-egu25-17705, 2025.