Dense Seismic Array Monitoring of the Glacier Tongue of Isunnguata Sermia, West Greenland

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PARIS, Nicolas, GIMBERT, Florent, LE BRIS, Tifenn, LIVINGSTONE, Stephen J, DOYLE, Samuel H, MICHEL, Alexandre, SOLE, Andrew J, LECOINTRE, Albanne, PINZON-RINCON, Laura, HILLERS, Gregor, COURBIS, Roméo, ROUX, Philippe, BARRUOL, Guilhem, BAGSHAW, Elizabeth A, CHUDLEY, Thomas R, CRAW, Lisa, EDWARDS, Laura A, GILBERT, Adrien, HAWKINS, Jonathan D, ING, Ryan N, JONES, Andrew H, MOFFAT, Angus, PEACEY, Matthew W, PRIOR-JONES, Michael R, ROSS, Neil, REBOUD, Arnaud, STORRAR, Robert, THORPE, Sian C, VENESS, Remy and YOUNG, Tun J (2026). Dense Seismic Array Monitoring of the Glacier Tongue of Isunnguata Sermia, West Greenland. Seismica, 5 (2). [Article]

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Abstract
Accelerating mass loss from the Greenland Ice Sheet is affected by meltwater-driven changes in ice dynamics, which remain poorly understood due to limited observations. Here, we present a 2.5 km2 wide dense passive seismic array experiment conducted in the ablation zone of Isunnguata Sermia, West Greenland. We target varying surface melt conditions through one-month long monitoring periods in spring, summer, and fall using 82-117 nodes deployed in 2023 and 2024 complemented by multi-week surface Distributed Acoustic Sensing acquisitions in 2024. We assess data quality using power spectral densities and noise correlation functions. We find that low-frequency seismic power is highly correlated to ice surface velocity, suggesting a strong control of subglacial hydrology on ice dynamics. We retrieve stable and high signal-to-noise ratio noise correlations containing Rayleigh, Love, and P wave arrivals, suggesting these may successfully be used for glacier structure imaging and monitoring. We finally demonstrate we can locate numerous seismic events with resolution down to a few meters using Matched Field Processing and which exhibit characteristic spatial patterns evolving across seasons. These findings establish the potential of such experiment to infer glacier hydrology, dynamics, and structure at high spatial and temporal resolution.
More Information
Official URL:
https://seismica.library.mcgill.ca/article/view/25...
Open Access URL:
https://seismica.library.mcgill.ca/article/view/25...
Open Access Version:
Published version

Identifiers

Identification Number:
10.26443/seismica.v5i2.2557
ORCID for Nicolas Paris: ORCID iD orcid.org/0009-0001-2412-8370
ORCID for Andrew J Sole: ORCID iD orcid.org/0000-0001-5290-8967
ORCID for Laura Pinzon-Rincon: ORCID iD orcid.org/0000-0002-2432-227X
ORCID for Gregor Hillers: ORCID iD orcid.org/0000-0003-2341-1892
ORCID for Thomas R Chudley: ORCID iD orcid.org/0000-0001-8547-1132
ORCID for Laura A Edwards: ORCID iD orcid.org/0000-0001-9936-6966
ORCID for Ryan N Ing: ORCID iD orcid.org/0000-0001-9767-3209
ORCID for Andrew H Jones: ORCID iD orcid.org/0000-0001-8662-4049
ORCID for Angus Moffat: ORCID iD orcid.org/0009-0007-3492-1843
ORCID for Matthew W Peacey: ORCID iD orcid.org/0000-0001-8554-2797
ORCID for Neil Ross: ORCID iD orcid.org/0000-0002-8338-4905
ORCID for Robert Storrar: ORCID iD orcid.org/0000-0003-4738-0082

Library

Publisher:
McGill University Library and Archives
Item Type:
Article
SWORD Depositor:
Symplectic Elements
Depositing User:
Symplectic Elements
Date record made live:
20 Jul 2026 11:00
Last Modified:
20 Jul 2026 11:15
Date of first compliant deposit:
20 July 2026
Date of first compliant Open Access:
20 July 2026
Version of first compliant deposit:
Version of Record
ISSN:
2816-9387
Volume:
5
URI:
https://shura.shu.ac.uk/id/eprint/37753
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