Observing the subglacial hydrology network and its dynamics with a dense seismic array

U Nanni, F Gimbert, P Roux… - Proceedings of the …, 2021 - National Acad Sciences
Subglacial water flow strongly modulates glacier basal motion, which itself strongly
influences the contributions of glaciers and ice sheets to sea level rise. However, our …

Estimating the elastic modulus of landfast ice from wave observations

JJ Voermans, J Rabault, A Marchenko, T Nose… - Journal of …, 2023 - cambridge.org
Progress in our understanding of wave–ice interactions is currently hindered by the lack of in
situ observations and information of sea-ice properties, including the elastic modulus. Here …

Dynamic imaging of glacier structures at high‐resolution using source localization with a dense seismic array

U Nanni, P Roux, F Gimbert… - Geophysical Research …, 2022 - Wiley Online Library
Dense seismic array monitoring combined with advanced processing can help retrieve and
locate a variety of seismic sources with unprecedented resolution and spatial coverage. We …

Crack propagation speeds in weak snowpack layers

B Bergfeld, A van Herwijnen, G Bobillier… - Journal of …, 2022 - cambridge.org
For the release of a slab avalanche, crack propagation within a weak snowpack layer below
a cohesive snow slab is required. As crack speed measurements can give insight into …

Borehole and surface applications of distributed acoustic sensing for characterization of the cryosphere and glacial environments

AM Brisbourne, TS Hudson… - … Acoustic Sensing in …, 2024 - Wiley Online Library
Early borehole and surface distributed acoustic sensing (DAS) experiments have
demonstrated the viability of the method in glacial settings and allowed new insights. The …

[HTML][HTML] Recovering and monitoring the thickness, density, and elastic properties of sea ice from seismic noise recorded in Svalbard

A Serripierri, L Moreau, P Boue, J Weiss… - The Cryosphere, 2022 - tc.copernicus.org
Due to global warming, the decline in the Arctic sea ice has been accelerating over the last 4
decades, with a rate that was not anticipated by climate models. To improve these models …

Accurate estimations of sea‐ice thickness and elastic properties from seismic noise recorded with a minimal number of geophones: from thin landfast ice to thick pack …

L Moreau, J Weiss, D Marsan - Journal of Geophysical …, 2020 - Wiley Online Library
Despite their high potential for accurate sea ice properties estimation, seismic methods are
still limited by the difficulty of access and the challenging logistics of polar environments …

Analysis of micro-seismicity in sea ice with deep learning and Bayesian inference: application to high-resolution thickness monitoring

L Moreau, L Seydoux, J Weiss… - The Cryosphere …, 2022 - tc.copernicus.org
In the perspective of upcoming seasonally ice-free Arctic, understanding the dynamics of
sea ice in the changing climate is a major challenge in oceanography and climatology. In …

Characteristics of ice-structure-soil interaction of an offshore wind turbine

P Zou, JD Bricker, A Fujisaki-Manome, FE Garcia - Ocean Engineering, 2024 - Elsevier
This research investigates the dynamic response of offshore wind turbine (OWT) systems
subject to ice-structure-soil interaction (ISSI). To simulate the behavior of level ice sheets, a …

[HTML][HTML] Simulation of acoustic reflection and backscatter from arctic sea-ice

NP Chotiros, G Bayrakci, O Sanford, T Clarke… - The Journal of the …, 2023 - pubs.aip.org
The rapidly warming Arctic ocean demands new ways to monitor and characterize changes
in sea-ice distribution, thickness, and mechanical properties. Upward-looking sonars …