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AGU Advances

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Diagram from the paper.
Posted inEditors' Highlights

Are Low-Frequency Earthquakes Just Slow Slip?

by Marcos Moreno 5 June 202331 May 2023

Tests of seismic attenuation show fluid saturation and high pressure near a seismic source reduce high-frequency content, challenging the idea of slow slip as the cause of low-frequency earthquakes.

Photo of the surface of Jupiter’s icy moon, Europa.
Posted inEditors' Highlights

Rotation of Europa’s Icy Shell Driven by Deep Ocean Currents

by Susan Trumbore 18 May 202317 May 2023

A model using currents in the deep ocean to drive rotation of Europa’s ice shell from below can explain why its surface may drift despite being tidally locked.

Two graphs from the paper.
Posted inEditors' Highlights

New Theory Explains Radiative Cooling of the Lower Atmosphere

by Hang Su 17 May 202317 May 2023

The shape of radiative cooling in lower atmosphere is controlled by the lapse rate in the water vapor path according to a new theory and observations from subsidence regimes in the tropical Atlantic.

Diagram of the carbon cycling in Subglacial Lake Mercer.
Posted inEditors' Highlights

Clues from a Subglacial Lake for Holocene Grounding Line Change

by Susan Trumbore 2 May 20231 May 2023

Organic carbon sampled in the lake contained radiocarbon, indicating connection to the ocean in the mid-Holocene, when the grounding line was up to 260 kilometers inland of its current position.

Graph from the paper
Posted inEditors' Highlights

Quantifying Extreme Events from Short Weather Forecast Data

by Sarah Kang 13 April 202310 April 2023

Subseasonal weather forecast ensembles are a useful tool for overcoming the inherent difficulty of quantifying extreme weather risk caused by data scarcity.

Graph from the paper
Posted inEditors' Highlights

The Depleted Mantle Merry-Go-Round 

by Vincent Salters 5 April 202331 March 2023

Abyssal peridotites show through their isotopic composition a complex history. From differences we can infer the existence of ultra depleted mantle and an uneven contribution to ridge magmatism.

Black hills covered in snow in front of a deep blue sea and tall white mountains.
Posted inResearch Spotlights

A Deeper Dive into Wintry, Carbon-Absorbing Antarctic Waters

Aaron Sidder, freelance science writer by Aaron Sidder 8 March 20238 March 2023

Cold surface water in the Southern Ocean is a critical component in ocean carbon uptake. A new study profiles it using state-of-the-art research techniques.

Two maps that show the pre-monsoon precipitation and monsoon precipitation.
Posted inEditors' Highlights

Source of Precipitation Moisture Feeding Himalayan Rivers

by Tissa Illangasekare 17 February 202314 March 2023

Isotope study showing the partitioning of moisture into snow, ice, and groundwater allows an understanding of the relative contribution to river flow to show where Himalayan river water comes from.

Posted inEditors' Highlights

How Do Atmospheric Rivers Respond to Extratropical Variability?

by Sarah Kang 3 February 202323 February 2023

Atmospheric river variability over the last millennium is primarily driven by north-south displacements in zonal winds induced by the annular modes.

Posted inEditors' Highlights

How Can We Sample More Ethically?

by Susan Trumbore 9 January 20239 January 2023

Ryan-Davis and Scalice describe a path towards sampling more ethically, going beyond legal permitting requirements to engagement of Indigenous expertise and respect of peoples’ relationship to place.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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