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Geophysical Research Letters

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Aerial photo of San Andreas Fault.
Posted inResearch Spotlights

How Land Deformation Occurs When Fault Sections Creep

Sarah Derouin, Science Writer by Sarah Derouin 1 July 20221 July 2022

Using a physical experiment, researchers show how off-fault deformation occurs along strike-slip faults with different types of motion.

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.

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.

NASA卫星拍摄到南太平洋汤加火山
Posted inResearch Spotlights

汤加火山引发电离层扰动

by Jack Lee 3 June 202230 November 2022

汤加火山喷发产生了影响深远的电离层扰动,其中一次扰动的初始速度高达950米每秒。

Figure 2 from the paper, showing a time series graph of amateur radio observations over the Continental United States and four maps showing data at selected universal times.
Posted inEditors' Highlights

Amateur Radio Observations Help Monitor Space Weather

by Gang Lu 17 May 20227 September 2022

Amateur radio observations provide a new method for studying large-scale ionospheric disturbances and HF communication impacts, and are important applications in ionospheric space weather monitoring.

Red-filter image of the Hunga Tonga–Hunga Ha‘apai eruption on 15 January 2022
Posted inResearch Spotlights

Modeling Atmospheric Waves from Hunga Tonga–Hunga Ha‘apai

Aaron Sidder, freelance science writer by Aaron Sidder 12 May 202230 November 2022

A shallow-water oceanic model showed agreement with satellite observations of atmospheric waves produced by the eruption of the underwater volcano.

The explosive eruption of Hunga Tonga–Hunga Ha’apai in the South Pacific
Posted inResearch Spotlights

Tonga Eruption Made Waves in Earth’s Ionosphere

by Jack Lee 21 April 202230 November 2022

The blast from Hunga Tonga–Hunga Ha’apai produced far-reaching ionospheric disturbances, including one with an initial speed up to 950 meters per second.

Lightning over water
Posted inResearch Spotlights

Lightning Had Difficulty Forming in Early Earth’s Atmosphere

by Rebecca Dzombak 8 April 202225 April 2022

Lightning could have sparked the beginnings of life, but the primordial atmosphere might have made it more difficult for lightning to initiate.

Plot showing results of using the new fingerprint analysis for global land mean near-surface air temperature for 6 CMIP6 models and the multi-model mean.
Posted inEditors' Highlights

Framework for Fingerprinting Human Influence on Climate

by Suzana Camargo 15 March 20221 June 2023

An optimal approach for detection and attribution studies using the CMIP6 Detection and Attribution Model Intercomparison Project (DAMIP).

An image of a nodal seismometer
Posted inResearch Spotlights

Potential of Leaking Modes to Reveal Underground Structure

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 7 March 20227 March 2022

Instead of waiting for earthquake waves to tell scientists about the structure of Earth’s interior, scientists can now use ambient noise from humans to “see” underground.

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