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Arctic

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.

Two illustrations of arctic lakes show the relative carbon dioxide and methane release, for the cases with and without widespread permafrost
Posted inEditors' Highlights

Hot Lakes in a Cold Climate

by David S. Schimel 31 December 202131 December 2021

Arctic warming may release less carbon dioxide from high latitude lakes but increase their climate impact by releasing more methane.

The Zapolyarnoye gas field in the Russian Arctic in 2013
Posted inNews

Projection: $110 Billion in Repairs for Russian Pipelines on Permafrost

by Jenessa Duncombe 16 December 202114 January 2022

Permafrost thaw is a major threat to pipelines in the Russian Arctic, particularly those carrying natural gas.

Several people aboard a small motorboat in a fjord with a glacial ice cliff in the background
Posted inScience Updates

Arctic Unicorns and the Secret Sounds of a Glacial Fjord

by Evgeny A. Podolskiy 9 December 202123 June 2022

The successful deployment of a seafloor seismometer near the calving front of a Greenland glacier has opened a new avenue to study hidden glacial processes and the behavior of fjord-dwelling wildlife.

Scientists living in ice camps during an entire year in 1975 (top). Automated instruments attached to sea ice in 2006–2012 (bottom).
Posted inResearch Spotlights

Capturing How Fast the Arctic Ocean Is Gaining Fresh Water

by Sarah Stanley 8 December 20219 December 2021

A new analysis suggests that models do not accurately capture how fresh Arctic surface waters mix with deeper waters, contributing to underestimation of Arctic surface freshening.

Three woolly mammoths walk over a snowy steppe during the last Ice Age.
Posted inNews

Mammoths Lost Their Steppe Habitat to Climate Change

by Elise Cutts 19 November 202121 March 2022

Ancient plant and animal DNA buried in Arctic sediments preserve a 50,000-year history of Arctic ecosystems, suggesting that climate change contributed to mammoth extinction.

A van drives through a flooded street in downtown Miami on a sunny day.
Posted inFeatures

The Benefits of Better Ocean Weather Forecasting

by Charlotte DeMott, Ángel G. Muñoz, Christopher D. Roberts, Claire M. Spillman and F. Vitart 12 November 202112 November 2021

Improvements in our ability to forecast oceanic conditions weeks to months in advance will help communities, industries, and other groups prepare amid a changing climate.

A person faces the sea from an ice floe where a kayak is docked.
Posted inNews

Could AI Be Useful for Arctic Communities Facing Sea Ice Loss?

by Humberto Basilio 28 October 202121 March 2022

The forecasting tool IceNet promises to be a useful tool for evaluating sea ice loss in the Arctic. But ethical and logistic considerations have to be taken before scientific and Indigenous communities start working together.

An icy Arctic vista is seen from a slight elevation. The landscape contains patches of white ice and randomly positioned pools of meltwater. Four scientists, small and seen from a distance, stand on the ice on the right side of the image.
Posted inNews

Melting Arctic Sea Ice Strengthens Tides

by Kimberly M. S. Cartier 21 October 202124 January 2022

If climate change throws off the seasonal freeze-thaw cycle of Arctic sea ice, it could trigger a reinforcing cycle of sea ice melt in parts of the Canadian Arctic.

Posted inResearch Spotlights

西伯利亚科雷马河的多年冻土碳元素含量极小

by Terri Cook 20 October 202120 October 2021

新的研究发现,北极河流目前运输的多年冻土来源的溶解有机碳有限,这对理解该地区变化的碳循环及其加速气候变化的潜力具有启示意义。

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