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Ice

Image of Mount Elbrus in Russia
Posted inNews

Fragrances in an Ice Core Tell a Story of Human Activity

by Carolyn Wilke 6 August 202019 October 2022

An ice core from Europe’s highest peak contains scent-imparting molecules whose trends mirror the Soviet Union’s economic ups and downs.

A view of Susitna Glacier and Mount Hayes in Alaska
Posted inResearch Spotlights

Glacial Contributions to 21st Century Sea Level Rise

by Kate Wheeling 15 July 202029 September 2021

Researchers identify the main sources of uncertainty in projections of global glacier mass change, which is expected to add about 8–16 centimeters to sea level, through this century.

Ice near Olkhon Island on Lake Baikal in Siberia
Posted inScience Updates

Big Questions, Few Answers About What Happens Under Lake Ice

by S. E. Hampton, S. M. Powers, S. P. Devlin and D. M. McKnight 6 July 202027 October 2022

Scientists long eschewed studying lakes in winter, expecting that cold temperatures and ice cover limited activity below the surface. Recent findings to the contrary are changing limnologists’ views.

Results of an inverse model showing inferred basal shear underneath Thwaites Glacier, West Antarctica
Posted inEditors' Vox

Modeling: A Powerful and Versatile Tool in Glaciology

by Olga Sergienko, Mathieu Morlighem, S. Nowicki and L. Padman 1 July 2020

Papers are invited for a new special collection presenting advances in modeling in glaciology that improve understanding of glaciers and ice sheets and their interactions with the Earth system.

Moon craters
Posted inNews

Water Ice Lurks in Young—but Not Too Young—Lunar Craters

by Katherine Kornei 15 June 202028 January 2022

Using topographic data, researchers have estimated the ages of water ice–containing craters near the Moon’s poles and ruled out volcanism as being a primary route for water delivery.

Satellite image of an icy ridge on Mars
Posted inNews

The Massive Ice Avalanches of Mars

by Joshua Rapp Learn 27 April 20208 August 2022

Ice avalanches may have traveled at speeds of up to 80 meters per second.

A stream in the Zackenberg Valley of northeastern Greenland
Posted inResearch Spotlights

How Will Climate Change Affect Arctic Stream Slime?

by Kate Wheeling 15 April 202029 September 2021

Rising temperatures and thawing permafrost will change nutrient concentrations in Arctic waterways, which will influence the growth of biogeochemically important biofilms.

banks of the lower Kolyma River at Duvannyi Yar in northern Siberia erode and collapse toward the river in August 2018.
Posted inResearch Spotlights

Organic Matter in Arctic River Shows Permafrost Thaw

by David Shultz 7 April 202029 September 2021

Samples from two waterways in northern Siberia—the main stem of the Kolyma River and a headwater stream in the river’s watershed—indicate the differing sources and ages of carbon they contain.

Photo of snowpack in the Sierra Nevada
Posted inResearch Spotlights

Snowpack Data Sets Put to the Test

by David Shultz 30 March 202029 September 2021

A new study compares the accuracy of three observation-based methods of calculating snow water equivalent, a key component in water management.

Water flows between encroaching ice crystals.
Posted inNews

River Ice Is Disappearing

by Sarah Derouin 18 February 2020

Over the past 3 decades, the persistence of river ice has decreased by almost a week. The decrease in ice has important implications for ecology, climate, and the economy.

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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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