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Kilogram prototype number 38 is one of the 40 initial replicas of the international prototype kilogram.
Posted inScience Updates

Universal Units Reflect Their Earthly Origins

by M. J. Van Camp, P. Richard and O. de Viron 14 November 201828 October 2021

On Friday, the kilogram will join its fellow metric units with a definition based on fundamental physical constants, but these units maintain links to their roots in the geosciences.

Domitilo Nájera Navarrete stands ready to deploy an acoustically-tracked RAFOS float in the Gulf of Mexico.
Posted inScience Updates

Deep Floats Reveal Complex Ocean Circulation Patterns

by A. L. Ramsey, H. H. Furey and A. S. Bower 5 November 201826 October 2022

Acoustically tracked floats drift far below the ocean’s surface, providing fresh discoveries about deep-sea currents. A new archive gathers decades’ worth of float data into a central repository.

Posted inEditors' Highlights

Dropsondes Reveal Atmospheric Boundary Layers Over Antarctic

by Minghua Zhang 2 November 20188 March 2022

636 high-resolution dropsondes reveal four types of atmospheric boundary layer over the Antarctic, including well-mixed and convective types.

Lava flows in a Minecraft landscape.
Posted inScience Updates

Digging Deep into Geosciences with Minecraft

by L. Hobbs, C. Stevens and J. Hartley 29 October 20188 October 2021

Building volcanoes, caves, and other features in an “open-world” computer game is an engaging way to teach the next generation about Earth.

Collapsed building in the Xochimilco borough of Mexico City after the M7.1 Puebla earthquake on 19 September 2017.
Posted inFeatures

Lessons from Mexico’s Earthquake Early Warning System

by R. M. Allen, E. S. Cochran, T. J. Huggins, S. Miles and D. Otegui 17 September 201819 October 2021

The devastating 2017 Puebla quake provides an opportunity to assess how citizens perceive and use the Mexico City earthquake early warning system.

Posted inEditors' Highlights

Successful Testing of Technique to Measure Seafloor Strain

by B. Pirenne 12 September 20186 October 2021

A new optical fiber interferometry strain sensor tested off the Oregon coast holds promising prospects for seafloor geodesy.

Recently restored data suggest that astronaut disturbances to the lunar surface resulted in observed subsurface warming.
Posted inResearch Spotlights

The Case of the Missing Lunar Heat Flow Data Is Finally Solved

by Sarah Stanley 25 June 201810 March 2022

Decades-old data analyzed for the first time suggest that astronauts’ disturbance of the Moon surface increased solar heat intake, warming the ground below.

Researchers create a new model to characterize landslide hazards in real time
Posted inResearch Spotlights

A Near-Real-Time Tool to Characterize Global Landslide Hazards

by Terri Cook 10 May 201818 October 2022

By fusing susceptibility information with precipitation data, a new model generates “nowcasts” to predict the potential for rainfall-triggered landslides in steep terrain between 50°N and 50°S.

Researchers use the 2015 eruption of Chile’s Calbuco volcano to test how well remote infrasound monitoring can detect volcanic activity
Posted inResearch Spotlights

Harnessing Remote Infrasound to Study Volcanic Eruptions

by Terri Cook 30 April 20182 May 2022

Data from the 2015 eruption of Chile’s Calbuco volcano suggest the international network built to monitor nuclear explosions may also be used to detect and characterize volcanic activity.

Posted inEditors' Highlights

Getting Littoral with Lake Carbon Efflux

by Ankur R. Desai 27 April 20188 November 2022

Next generation forced diffusion chambers reveal dynamic environment for lake carbon exchange with distance from shoreline.

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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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