English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The field of ice sheet, ice shelf and glacier-related seismology,cryoseismology, has seen rapid development in recent years. As concern growsfor the implications of change in the great ice sheets of Greenland andAntarctica, so instrument advances and international field programs haveexpanded the availability of passive seismic datasets that contain records ofglacier processes. Many glacier-related seismic signals are generated by meltwater, so a need exists to better understand the seismic response of movingwater on glaciers. We present an analytic framework to model seismic signals atthe interface between moving water and ice based on either new or existingsmoothed particle hydrodynamic (SPH) simulations. The framework is tailored tounderstanding the seismic body wave response of transient moving water eventsand produces a simulated dataset of water-ice collisions to predict the motiondue to body waves at any location on the glacier. The synthetic accelerationtime series generated are invariant to the simulation resolution, and considerfrequency-dependent weak dispersion and attenuation due to the propagatingmedium. We illustrate the capability of our framework using end-member cases ofwater flow: the breaking of a supraglacial melt water lake dam with thesubsequent flow of water through glacier channels with differing geometries.Our focus is on the waveform attributes rather than exact waveform matching inview of the dynamic nature of the glacier environment. The flexibility inherentin the computational framework will allow for the simulation of seismic signalsgenerated by high-energy collisions in a variety of different water flowgeometries. We make the code publicly available for the polar geophysicscommunity with the aim of adding to the toolbox of available approaches toinform the future monitoring of melt water movement and related glacierprocesses.

Seismic signals generated at a water-ice interface from smoothed particle hydrodynamic simulations