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Editors’ Highlights

Four satellite images showing pyroclastic material infill between 2014 and 2019.
Posted inEditors' Highlights

Volcanic Creation and Destruction of Temporary Tephra Storage

by Agnes Kontny 1 July 20225 June 2023

Pyroclastic density currents (PDCs) are a major threat during an explosive volcanic eruption. A new study shows that loose tephra accumulations on volcanic slopes tend to re-mobilize rapidly.

Map overlain with moisture, precipitation, and wind currents for the westward propagating moisture model.
Posted inEditors' Highlights

New Western Hemisphere Moisture Mode

by Suzana Camargo 24 June 202224 February 2023

A new study presents the first evidence of the existence of an intraseasonal westward-propagating moisture mode over the Western Hemisphere.

Diagram showing the three barriers in seasonal forecast and the Conditional Generative Forecasting methodology developed to tackle these three barriers.
Posted inEditors' Highlights

Learning from Climate Simulations for Global Seasonal Forecast

by Jiwen Fan 23 June 202222 December 2022

A probabilistic deep learning methodology that learns from climate simulation big data offers advantageous seasonal forecasting skill and crucial climate model diagnosis information at a global scale.

Image of Arrokoth showing the main geological features as well as total surface acceleration.
Posted inEditors' Highlights

A Glimpse at Planet Formation at the Dawn of the Solar System

by Matthias Grott 22 June 202221 December 2022

The low density of Kuiper Belt Object Arrokoth sheds light on the formation of planetesimals in the early solar system.

Photo of S-band radar site with Mt. Aragats in the background.
Posted inEditors' Highlights

Radar Diagnosis of the Thundercloud Electron Accelerator

by Minghua Zhang 14 June 202210 March 2023

Altitude-resolved S-band radar observations of graupel are used to decipher thunderstorm ground enhancements in surface electric field and gamma ray flux.

Image showing composite polar vortex structure for disturbed conditions.
Posted inEditors' Highlights

Simulating Surface Impacts of Stratospheric Sudden Warmings

by William J. Randel 10 June 202221 December 2022

New evaluations of climate model simulations show how the stratosphere polar vortex couples to surface weather.

Images showing the ArchKalmag14k model output for Paris (France) compared to other geomagnetic field models..
Posted inEditors' Highlights

Time-Step Filtering in Holocene Global Magnetic Field Models

by Mark J. Dekkers 9 June 20229 May 2023

Through a local fixed time-step filter, global Holocene magnetic field models remain mathematically tractable refining our insight into field variability and improving archeological dating.

Graph showing contribution of each large-scale atmospheric variable on the y-axis to predicted total convective area.
Posted inEditors' Highlights

Using Artificial Intelligence to Study Convection

by Minghua Zhang 8 June 202223 January 2023

Machine learning techniques are used to examine relationships between the large-scale state of the atmosphere, the convection total area, and the degree of organization in northern Australia.

Three auroral images taken by a citizen scientist in Dunedin, New Zealand.
Posted inEditors' Highlights

Uncovering the Mysterious STEVE Aurora

by Gang Lu 7 June 202214 September 2022

Scientists present the first direct observations on the rapid evolution of a bright red auroral arc into a thin white-mauve arc known as STEVE.

Diagrams showing cross correlation of cloud-feedback components in the multi-model ensemble.
Posted inEditors' Highlights

Cloud Feedbacks in CMIP6 Models Versus Expert Synthesis

by Minghua Zhang 6 June 202214 September 2022

Models with smallest feedback errors are found to have moderate cloud feedbacks and equilibrium climate sensitivity of 3 to 4 degrees of warming when the concentration of carbon dioxide is doubled.

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How Glacial Forebulges Shape the Seas and Shake the Earth

23 September 202519 September 2025
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