Achievements and prospects of global broadband seismographic networks after 30 years of continuous geophysical observations
Global seismographic networks (GSNs) emerged during the late nineteenth and early
twentieth centuries, facilitated by seminal international developments in theory, technology …
twentieth centuries, facilitated by seminal international developments in theory, technology …
Tidal tomography constrains Earth's deep-mantle buoyancy
Earth's body tide—also known as the solid Earth tide, the displacement of the solid Earth's
surface caused by gravitational forces from the Moon and the Sun—is sensitive to the …
surface caused by gravitational forces from the Moon and the Sun—is sensitive to the …
The relationships between large‐scale variations in shear velocity, density, and compressional velocity in the Earth's mantle
P Moulik, G Ekström - Journal of Geophysical Research: Solid …, 2016 - Wiley Online Library
A large data set of surface wave phase anomalies, body wave travel times, normal‐mode
splitting functions, and long‐period waveforms is used to investigate the scaling between …
splitting functions, and long‐period waveforms is used to investigate the scaling between …
Improved resolution across the Global Seismographic Network: A new era in low‐frequency seismology
AT Ringler, RE Anthony, P Davis… - The Seismic …, 2022 - pubs.geoscienceworld.org
Abstract The Global Seismographic Network (GSN)—a global network of≈ 150 very
broadband stations—is used by researchers to study the free oscillations of the Earth (≈ 0.3 …
broadband stations—is used by researchers to study the free oscillations of the Earth (≈ 0.3 …
Toward consistent seismological models of the core–mantle boundary landscape
P Koelemeijer - Mantle convection and surface expressions, 2021 - Wiley Online Library
The dynamic topography of the core‐mantle boundary (CMB) provides important constraints
on dynamic processes in the mantle and core. However, inferences on CMB topography are …
on dynamic processes in the mantle and core. However, inferences on CMB topography are …
Exact free oscillation spectra, splitting functions and the resolvability of Earth's density structure
F Akbarashrafi, D Al-Attar, A Deuss… - Geophysical Journal …, 2018 - academic.oup.com
Seismic free oscillations, or normal modes, provide a convenient tool to calculate low-
frequency seismograms in heterogeneous Earth models. A procedure called 'full mode …
frequency seismograms in heterogeneous Earth models. A procedure called 'full mode …
An analysis of core–mantle boundary Stoneley mode sensitivity and sources of uncertainty
A Robson, HCP Lau, P Koelemeijer… - Geophysical Journal …, 2022 - academic.oup.com
Stoneley modes are a special subset of normal modes whose energy is confined along the
core–mantle boundary (CMB). As such, they offer a unique glimpse into Earth structure at …
core–mantle boundary (CMB). As such, they offer a unique glimpse into Earth structure at …
Model order reduction for seismic waveform modelling: inspiration from normal modes
The computational cost of full waveform simulation in seismological contexts is known to be
expensive and generally requires large clusters of computers working in parallel. Although …
expensive and generally requires large clusters of computers working in parallel. Although …
Constraints on core–mantle boundary topography from models of thermal and thermochemical convection
F Deschamps, Y Rogister… - Geophysical Journal …, 2018 - academic.oup.com
Mantle flow induces dynamic topography at the core–mantle boundary (CMB), with
distribution and amplitude that depend on details of the flow. To assess whether …
distribution and amplitude that depend on details of the flow. To assess whether …
Synthetic free-oscillation spectra: an appraisal of various mode-coupling methods
HY Yang, J Tromp - Geophysical Journal International, 2015 - academic.oup.com
Normal-mode spectra may be used to investigate large-scale elastic and anelastic
heterogeneity throughout the entire Earth. The relevant theory was developed a few …
heterogeneity throughout the entire Earth. The relevant theory was developed a few …