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Natural hazards

View of a house surrounded by floodwaters, with a piece of wood topped by a small United States flag floating in the foreground.
Posted inScience Updates

Engineering with Nature to Face Down Hurricane Hazards

by Krystyna Powell, Safra Altman and James Marshall Shepherd 5 January 20235 January 2023

Natural and engineered, nature-based structures offer promise for storm-related disaster risk reduction and flood mitigation, as long as researchers can adequately monitor and study them.

A mass of steaming, orange-glowing lava consumes a street sign as it flows over a roadway.
Posted inResearch Spotlights

A Better Operational Lava Flow Model

by Morgan Rehnberg 26 October 202226 October 2022

By segmenting the vertical structure of a lava flow, the Lava2d model provides more realism to operational lava forecasts.

View from space showing lights illuminating the U.S. Gulf Coast
Posted inOpinions

Converging Toward Solutions to Grand Challenges

by Ryan McGranaghan, Adam Kellerman and Mark Olson 25 October 202225 October 2022

A hypothetical, space weather–induced power grid catastrophe served as a practice case for building unity and collaborative skills among disparate communities to address a major global hazard.

A lightning bolt appears amid clouds of ash and steam that are billowing from a volcano high into the atmosphere over the ocean.
Posted inResearch Spotlights

Tracking Water in the Tongan Volcano’s Massive Eruption Plume

by Sarah Stanley 24 October 202230 November 2022

The recent eruption of the Hunga Tonga–Hunga Ha‘apai volcano blasted sulfate aerosols and a record-breaking amount of water vapor into the stratosphere.

A hazy orange sky above a mountain range
Posted inScience Updates

For Western Wildfires, the Immediate Past Is Prologue

by Ronnie Abolafia-Rosenzweig, Cenlin He and Fei Chen 13 July 202222 December 2022

A new machine learning approach trained on winter and spring climate conditions offers improved forecasts of summer fire activity across the western United States.

View over open ocean water with clouds tinted pink by a sunrise and a distant, lone mountain on the horizon
Posted inScience Updates

“Landslide Graveyard” Holds Clues to Long-Term Tsunami Trends

by Suzanne Bull, Sally J. Watson, Jess Hillman, Hannah E. Power and Lorna J. Strachan 3 June 20221 August 2022

A new project looks to unearth information about and learn from ancient underwater landslides buried deep beneath the seafloor to support New Zealand’s resilience to natural hazards.

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 20222 August 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 20222 August 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.

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 202227 January 2023

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

Figure 1 from the paper, showing the depiction of a multiple-reservoir system and the system that is used in the computation of the index.
Posted inEditors' Highlights

A New Index to Assess Multiple-Reservoir Effects on Peak Floods

by Georgia Destouni 11 April 202220 May 2022

A simple, yet quantitative, index is demonstrated to quantify reductions in the peak flood resulting from multiple reservoirs, arranged in series along the same river reach.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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