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Journal of Geophysical Research: Solid Earth

Niveau du lac du Nyiragongo au cours du temps.
Posted inEditors' Highlights

Mesurer les oscillations d’un lac de lave depuis l’espace

by Michael Poland 19 May 202216 May 2022

Les images satellite permettent de mesurer les oscillations du lac de lave du Nyiragongo (RD Congo). Ces mesures renseignent sur la dynamique du volcan et aident à anticiper ses éruptions futures.

Lava lake activity over time at the Nyiragongo volcano.
Posted inEditors' Highlights

Tracking Lava Lake Levels at an African Volcano from Space

by Michael Poland 19 May 202216 May 2022

Satellite data from Nyiragongo Volcano, Democratic Republic of Congo, track changes in summit-crater lava levels that provide a window into eruption dynamics and aid in forecasting future activity.

Three-dimensional shear wave velocity maps.
Posted inEditors' Highlights

Probabilistic Tomography Delivers Answers to Basic Questions

by Michael Bostock 13 May 202210 May 2022

Fundamental questions on subsurface properties are robustly addressed through probabilistic assessment of multiple forward/inverse modelling formalisms using interrogation theory.

Cartoon illustrating the formation of depressed sedimentary basins and uplifted shoulder in continental rifts.
Posted inEditors' Highlights

The Lost Topography Around Continental Rifts

by Fabio A. Capitanio 28 April 202225 April 2022

Numerical models provide quantitative constraints on topography lost to erosion, showing how the sediment influx in a sedimentary basin reflects its tectonic and topographic evolution.

Carpentaria湾上方的GRACE-FO卫星
Posted inResearch Spotlights

卫星激光揭示地球水运动的变化

by JoAnna Wendel 27 April 202227 April 2022

GRACE-FO卫星上基于激光的仪器可以扩展到其他地球物理应用,用来收集地球系统中月内时间尺度上的质量变化的数据。

Transmission electron microscope images of diverse synthetic hematite grains were used to explain key domain state and anisotropy signals in first-order reversal curve (FORC) diagrams.
Posted inEditors' Highlights

A Step Towards Understanding the Magnetic Properties in Hematite

by Agnes Kontny 26 April 202227 April 2022

Scientists present the most comprehensive available magnetic domain state and anisotropy study for synthetic and natural hematite from first-order reversal curve diagrams.

Perspective plot looking west across the Hikurangi margin (New Zealand) at the 3 km/s S-velocity isosurface contoured in depth.
Posted inEditors' Highlights

Adjoint Tomography Illuminates Hikurangi Margin Complexity

by Michael Bostock 21 April 202226 April 2022

Waveform inversion of regional earthquakes reveals velocity anomalies interpreted as subducting seamounts that control an enigmatic segmentation in plate coupling along the Hikurangi margin.

Scientists using ground-penetrating radar equipment
Posted inResearch Spotlights

Testing a Machine Learning Approach to Geophysical Inversion

by Morgan Rehnberg 1 April 20221 April 2022

Variational autoencoders can be leveraged to provide an effective method of inversion that is both accurate and computationally efficient.

Artist’s concept of the twin satellites in the GRACE program
Posted inResearch Spotlights

Fresh Approaches to Processing GRACE Data

by Sarah Derouin 24 March 202224 March 2022

Two studies showcase new methods for analyzing GRACE data that better match the land surface, producing clearer estimates of mass variations.

The Gulf of Carpentaria in northern Australia
Posted inResearch Spotlights

Satellites’ Lasers Reveal Changes in Earth’s Water Movement

by JoAnna Wendel 22 March 202227 April 2022

The laser-based instruments aboard the GRACE-FO satellites may be extended to other geophysical applications to collect data on other submonthly mass changes in Earth’s system.

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