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Arctic Ocean

Autonomous underwater vehicle being loaded onto a ship
Posted inNews

Groundwater Flow May Contribute to Submarine Permafrost Thaw

by Jack Lee 18 May 202231 May 2022

New, detailed surveys from the Beaufort Sea reveal a seafloor depression the size of a city block associated with permafrost thaw and likely influenced by the movement of groundwater below.

Sea ice in the Arctic Ocean.
Posted inEditors' Vox

Tracking Heat Gains and Losses in the Nordic Seas

by Lars H. Smedsrud 31 January 20221 February 2022

The Nordic Seas experience influxes of warm water and losses of heat to the atmosphere with knock-on effects on sea ice, glacier retreat, and carbon dioxide uptake.

A GEOTRACES research vessel in the Arctic Ocean
Posted inResearch Spotlights

Diurnal Oxidation for Manganese Minerals in the Arctic Ocean

by Morgan Rehnberg 13 January 202213 January 2022

The relative abundance of different oxidation states for this important micronutrient varies on the basis of how much available sunlight there is.

Satellite view of the Lena River delta in June 2019
Posted inResearch Spotlights

River Deltas at the Top of the World

by Elizabeth Thompson 20 March 202010 February 2022

The water that filters through river deltas has a large effect on the Arctic Ocean. A new study explores factors that shape Arctic river deltas and how delta form in turn changes water flow.

Aerial photo of sea ice
Posted inNews

Strong Winds Leave Arctic Regions on Thin Ice

by T. Burke 9 May 201929 March 2022

A warming event in Siberia caused winds to strip sea ice from the Arctic’s Wandel Sea.

Posted inEditors' Highlights

Distinguishing Pacific and Atlantic Contributions to the Arctic

by J. Sprintall 18 April 201912 January 2022

A semi-conservative tracer combining nitrate and dissolved oxygen is more accurate than traditional tracers in distinguishing between Atlantic and Pacific water mass contributions to the Arctic.

https://doi.org/10.1029/2018JC013888
Posted inEditors' Highlights

Increased Release Rates of Radium Isotopes on Arctic Shelves

by P. Brewer 22 August 201821 March 2022

A longer ice-free season on Arctic shelves causes an increase in sediment-water interaction.

Posted inScience Updates

Small Rivers Could Have Big Impact on Arctic Ocean

by M. B. Alkire, A. D. Jacobson, G. O. Lehn and R. W. Macdonald 11 August 20157 March 2022

The Mackenzie River carries the bulk of freshwater flow from North America's tundra to the North Atlantic. But what about the effects of smaller rivers from Canada's Arctic islands?

From AGU Journals

MOST SHARED
Geophysical Research Letters
“Satellite and Ocean Data Reveal Marked Increase in Earth’s Heating Rate”
By Norman G. Loeb et al.

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“A Systematic Study of Sustainable Development Goal (SDG) Interactions”
By Prajal Pradhan et al.

HOT ARTICLE
GeoHealth
“Premature Deaths in Africa Due to Particulate Matter Under High and Low Warming Scenarios”
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