Glacial seismology

RC Aster, JP Winberry - Reports on Progress in Physics, 2017 - iopscience.iop.org
Seismic source and wave propagation studies contribute to understanding structure,
transport, fracture mechanics, mass balance, and other processes within glaciers and …

Array processing in cryoseismology: a comparison to network-based approaches at an Antarctic ice stream

TS Hudson, AM Brisbourne, SK Kufner… - The …, 2023 - tc.copernicus.org
Seismicity at glaciers, ice sheets, and ice shelves provides observational constraint on a
number of glaciological processes. Detecting and locating this seismicity, specifically …

Contribution of calving to frontal ablation quantified from seismic and hydroacoustic observations calibrated with lidar volume measurements

A Köhler, M Pętlicki, PM Lefeuvre, G Buscaino… - The …, 2019 - tc.copernicus.org
Frontal ablation contributes significantly to the mass balance of tidewater glaciers in
Svalbard and can be recovered with high temporal resolution using continuous seismic …

Effects of undercutting and sliding on calving: a global approach applied to Kronebreen, Svalbard

D Vallot, J Åström, T Zwinger, R Pettersson… - The …, 2018 - tc.copernicus.org
In this paper, we study the effects of basal friction, sub-aqueous undercutting and glacier
geometry on the calving process by combining six different models in an offline-coupled …

Glacier calving observed with time-lapse imagery and tsunami waves at Glaciar Perito Moreno, Patagonia

M Minowa, EA Podolskiy, S Sugiyama… - Journal of …, 2018 - cambridge.org
Calving plays a key role in the recent rapid retreat of glaciers around the world. However,
many processes related to calving are poorly understood since direct observations are …

Calving flux estimation from tsunami waves

M Minowa, EA Podolskiy, G Jouvet, Y Weidmann… - Earth and Planetary …, 2019 - Elsevier
Measuring glacier calving magnitude, frequency and location in high temporal resolution is
necessary to understand mass loss mechanisms of ocean-terminating glaciers. We utilized …

Enhancing seismic calving event identification in Svalbard through empirical matched field processing and machine learning

A Köhler, EB Myklebust… - Geophysical Journal …, 2022 - academic.oup.com
Seismic signals generated by iceberg calving can be used to monitor ice loss at tidewater
glaciers with high temporal resolution and independent of visibility. We combine the …

Potentials and pitfalls of permafrost active layer monitoring using the HVSR method: A case study in Svalbard

A Köhler, C Weidle - Earth Surface Dynamics, 2019 - esurf.copernicus.org
Time-lapse monitoring of the subsurface using ambient seismic noise is a popular method in
environmental seismology. We assess the reliability of the horizontal-to-vertical spectral ratio …

Quantifying iceberg calving fluxes with underwater noise

O Glowacki, GB Deane - The Cryosphere, 2020 - tc.copernicus.org
Accurate estimates of calving fluxes are essential in understanding small-scale glacier
dynamics and quantifying the contribution of marine-terminating glaciers to both eustatic sea …

Characterization of seasonal glacial seismicity from a single-station on-ice record at Holtedahlfonna, Svalbard

A Köhler, V Maupin, C Nuth, W Van Pelt - Annals of Glaciology, 2019 - cambridge.org
Glacial seismicity provides important insights into glacier dynamic processes. We study the
temporal distribution of cryogenic seismic signals (icequakes) at Holtedahlfonna, Svalbard …