Preprints
https://doi.org/10.5194/egusphere-2024-3382
https://doi.org/10.5194/egusphere-2024-3382
27 Nov 2024
 | 27 Nov 2024
Status: this preprint is open for discussion.

Brief communication: Storstrømmen glacier, Northeast Greenland, primed for end-of-decade surge

Jonas Kvist Andersen, Rasmus Probst Meyer, Flora Salome Huiban, Mads Lykke Dømgaard, Romain Millan, and Anders Anker Bjørk

Abstract. Storstrømmen Glacier, a large surge-type marine-terminating glacier in northeast Greenland, is currently in a quiescent phase. We reassess the glacier’s development toward a potential surge by updating time series of surface elevation, ice velocity, and grounding line location through 2023. Observations suggest the glacier is approaching pre-surge conditions, with a possible surge onset projected to occur between 2027 and 2040. Additionally, we document several lake drainage events that caused transient ice flow accelerations without triggering a surge. The findings underscore the importance of continued monitoring to improve our understanding of surge initiation mechanisms, including the influence of transient drainage events.

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Jonas Kvist Andersen, Rasmus Probst Meyer, Flora Salome Huiban, Mads Lykke Dømgaard, Romain Millan, and Anders Anker Bjørk

Status: open (until 11 Jan 2025)

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Jonas Kvist Andersen, Rasmus Probst Meyer, Flora Salome Huiban, Mads Lykke Dømgaard, Romain Millan, and Anders Anker Bjørk
Jonas Kvist Andersen, Rasmus Probst Meyer, Flora Salome Huiban, Mads Lykke Dømgaard, Romain Millan, and Anders Anker Bjørk

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Short summary
Storstrømmen Glacier in northeast Greenland goes through cycles of sudden flow speed-ups (known as surges) followed by long quiet phases. Currently in its quiet phase, recent measurements suggest it may be nearing conditions for a new surge, possibly between 2027 and 2040. We also observed several lake drainages that caused brief increases in glacier flow but did not trigger a surge. Continued monitoring is essential to understand how these processes influence glacier behavior.