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poles

Image of a blue sphere with lights near the top and bottom
Posted inNews

True North, Strong and Free—And Better Oriented

by Mohammed El-Said 14 September 202314 September 2023

Researchers explored a method for locating true north using the polarization patterns of daylight.

A drone hovers over a beach.
Posted inNews

Drones Make Weather Prediction Easier at the Poles

by Andrew Chapman 23 December 202223 December 2022

Researchers measured wind speed with a commercially available drone and a lightweight sensor. The approach could help scientists gather more data from remote environments.

Photograph of Arctic sea ice
Posted inNews

Third-Wettest Year in Arctic Wraps Up

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 13 December 20227 March 2023

The annual Arctic Report Card charts the rise in rain in northern latitudes and serves as a new “vital sign” of the region’s shifting climate.

Posted inEditors' Highlights

New Tool to Decipher Past Upper Troposphere Temperatures

by Susan Trumbore 9 August 20229 February 2023

Small variations in clumped O2 isotopes reflect temperatures in the upper troposphere. Bubbles measured in polar ice cores show the global lapse-rate appears to steepen during the Last Glacial Maximum.

Allen Foster at the South Pole Telescope in summer 2019–2020
Posted inFeatures

Allen Foster: Greasing Telescope Gears During a 7-Month-Long Night

by Santiago Flórez 25 July 202222 December 2022

While overwintering in Antarctica, Foster maintains the South Pole Telescope facilities.

Chart showing polar cap index values for four days around the St Patrick’s Day storm of 2015.
Posted inEditors' Highlights

Watching the Substorms Grow

by Michael A. Hapgood 24 May 20222 August 2022

Updated procedures enable consistent use of a wide network of polar magnetometers to monitor energy flow into the tail of Earth’s magnetosphere during the growth phase of substorms.

A photograph from a commercial flight showing a pyrocumulonimbus cloud forming over the 2019–2020 Australian bushfires.
Posted inNews

Australian Wildfires Linked to Ozone Layer Depletion

by Krystal Vasquez 4 April 20226 April 2022

New research shows that the Black Summer bushfires damaged the ozone layer, eliminating a decade’s worth of progress.

A blue ring of auroral emission glows above Saturn’s north pole.
Posted inNews

Saturn’s Powerful Winds Explain Changes in the Length of Its Day

Katherine Kornei, Science Writer by Katherine Kornei 17 March 20228 August 2022

Atmospheric winds moving at more than 7,000 kilometers per hour distort Saturn’s magnetic field, revealing why spacecraft have measured changes in the length of a day on the ringed world.

Detailed image shows sculpted layers of ice at Mars’s south pole.
Posted inNews

The Bumpy Search for Liquid Water at the South Pole of Mars

Damond Benningfield, Science Writer by Damond Benningfield 8 March 20228 March 2022

Studies since 2018 have provided competing explanations of bright radar reflections from the base of the south polar ice cap.

A photograph of polar stratospheric clouds near Kiruna, Sweden.
Posted inEditors' Vox

New Insights into Polar Stratospheric Clouds

by Lamont R. Poole 18 October 202126 April 2022

New satellite observations of polar stratospheric clouds have advanced our understanding of how, when, and where they form, their composition, and their role in ozone depletion.

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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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