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Alaska

Graph from the paper.
Posted inEditors' Highlights

Repeated Coseismic Uplift Above the Patton Bay Splay Fault, Alaska

by Daniel Melnick 30 May 20243 June 2024

Stratigraphic and diatom analyses suggest ruptures of the Patton Bay splay fault occurred together with half of the documented great Alaskan megathrust earthquakes during the past 4,200 years.

A glacier between two dark-colored mountains. A snowy mountain reaching up into the clouds is in the background, and blue seawater is in the foreground.
Posted inResearch Spotlights

A Million Years Without a Megaslide

by Rebecca Owen 19 April 202419 April 2024

A new study goes deep into the Gulf of Alaska to examine the sixth-largest underwater landslide and investigate why a similar event hasn’t happened since.

A river cuts through a valley in Alaska in summer.
Posted inNews

Climate Change Is Weakening River Seasonality in the North

by Grace van Deelen 13 March 202414 March 2024

Seasonal flow variability is decreasing as climate change alters Earth’s systems, creating challenges for water management.

A bald eagle perches on a lichen and moss-covered branch sticking out of a large tree trunk, with pine trees visible in the background.
Posted inResearch Spotlights

To Meet Climate Goals, Protect the Tongass and Chugach Forests

Rachel Fritts, Science Writer by Rachel Fritts 22 November 20231 December 2023

The two largest U.S. national forests, both in Alaska, have low wildfire risk and provide crucial forest carbon stocks and biodiversity benefits.

Posted inThe Landslide Blog

The deadly 20 November 2023 landslide near Wrangell in Alaska, USA

by Dave Petley 22 November 202322 November 2023

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. At about 9 pm local time on 20 November 2023, a large landslide occurred near to Wrangell in Alaska, USA. At the time of writing, three people have been confirmed to have […]

A man wearing a blue life vest stands knee deep in water to collect a water sample downstream of the large glacier in the background.
Posted inResearch Spotlights

Measuring Carbon’s Flow from Land to Sea

by Rebecca Owen 21 November 202321 November 2023

A new study catalogs how dissolved inorganic carbon moves through southeast Alaska’s waterways.

Map of study area with symbols.
Posted inEditors' Highlights

Machine Learning Identifies Source Volcanoes of Ash Deposits

by Paul Asimow 8 November 20236 November 2023

Tracing ash layers from explosive eruptions back to their source volcanoes is needed to evaluate hazards to population and aviation, a problem addressed by a new machine learning classification method.

A satellite image of Earth’s surface shows gray material—airborne dust—fanning out over a landscape of snowy mountain peaks and vegetated lowlands.
Posted inNews

Protein Powder Makes Ice Crystals Flower

Katherine Kornei, Science Writer by Katherine Kornei 26 September 202326 September 2023

Dust from Alaska is particularly effective at forming ice crystals because it contains biological components, researchers believe. The finding has implications for cloud physics and our planet’s climate.

Posted inFeatures

Как необычная дружба разрушила мифы о вечной мерзлоте

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 20 September 202320 September 2023

“Прекрасные долгие споры” между американским ученым и российским исследователем помогли прояснить несколько фундаментальных предположений о таянии вечной мерзлоты.

Diagram from the paper.
Posted inEditors' Highlights

Northern Ecosystems are Shaped by Snow

by David S. Schimel 12 September 202313 September 2023

Changing climate in the Arctic leads to a shorter snow season but deeper snow in the depths of winter. Under the insulating snow, biological processes are accelerated leading to higher nutrient availability and carbon losses.

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