Rusting Rivers: Assessing the Causes and Consequences in Alaska and Across the Arctic
Featured in NOAA's 2025 Arctic Report Card
Featured in NOAA's 2025 Arctic Report Card
Sea Otter Survey Visualization Tool
Alaska Science Center’s Commitment to “Gold Standard Science” for Data Products
Q&A: USGS Ecosystems Provides Objective Science to Manage Lands, Fish, and Wildlife
Alaska Critical Mineral Resource Assessments
Alaska has potential for a wide range of critical minerals including, but not limited to, graphite, lithium, tin, tungsten, rare earth elements, and platinum-group elements.
Alaska has potential for a wide range of critical minerals including, but not limited to, graphite, lithium, tin, tungsten, rare earth elements, and platinum-group elements.
Q&A: USGS Ecosystems Science Provides Information on Subsistence and Hunter-Harvested Food Resources in Alaska
Science Spotlight: USGS Monitoring of Glacial Outburst Flood in Juneau Alaska
Alaska Science Center
The mission of the Alaska Science Center is to provide objective and timely data, information, and research findings about the earth and its flora and fauna to Federal, State, and local resource managers and the public to support sound decisions regarding natural resources, natural hazards, and ecosystems in Alaska and circumpolar regions. We have offices in Anchorage, Juneau, and Fairbanks.
In the Spotlight
In the Spotlight
Critical Minerals in Ores (CMiO) database
Critical minerals are commodities essential to modern industrial and strategic technologies and are highly vulnerable to supply chain disruption. The CMiO database contains geochemical data for more than 20,000 samples from more than 100 deposit types comprising 10 deposit environments.
Current Water Conditions
Current Water Conditions
Explore real-time Alaska streamflow, groundwater, and water-quality conditions and access data with our new interactive map application.
News
USGS Measures Glacial Flooding in Juneau, Alaska
USGS Measures Glacial Flooding in Juneau, Alaska
Science Spotlight: USGS Monitoring of Glacial Outburst Flood in Juneau Alaska
Science Spotlight: USGS Monitoring of Glacial Outburst Flood in Juneau Alaska
Project Spotlight: USGS Scientists Work with Kenai Peninsula Communities to Define Baseline Water Data Amid Climate Uncertainty
Project Spotlight: USGS Scientists Work with Kenai Peninsula Communities to Define Baseline Water Data Amid Climate Uncertainty
Publications
Tectonic implications of transitional melting regimes from petrological, geochronological, and compositional characterization of the ophiolitic Seventymile terrane, Alaska, USA Tectonic implications of transitional melting regimes from petrological, geochronological, and compositional characterization of the ophiolitic Seventymile terrane, Alaska, USA
New geochemical, U-Pb geochronology, and Sr-Nd-Hf isotope data provide evidence for the tectonic evolution of the Seventymile terrane in interior Alaska, USA. Ultramafic and mafic rocks of the Seventymile terrane are thought to represent components of a dismembered ophiolite and provide unique constraints on regional terrane evolution and accretion. The Seventymile ophiolite represents...
A time-space model of graphite mineral systems A time-space model of graphite mineral systems
Increasing demand for graphite in energy storage systems warrants review of graphite ore genesis in a mineral systems framework. Orogenic graphite encompasses the metamorphic and orogenic mineral systems that produce flake graphite and hydrothermal vein (lump and chip) graphite deposits, respectively. A common feature of orogenic graphite deposits is an association with upper amphibolite...
Power source, data retrieval method, and attachment type affect success of dorsally mounted tracking tag deployments in 37 species of shorebirds Power source, data retrieval method, and attachment type affect success of dorsally mounted tracking tag deployments in 37 species of shorebirds
Animal-borne trackers are commonly used to study bird movements, including in long-distance migrants such as shorebirds. Selecting a tracker and attachment method can be daunting, and methodological advancements often have been made by trial and error and conveyed by word of mouth. We synthesized tracking outcomes across 2745 dorsally mounted trackers on 37 shorebird species around the...
Science
Alaska Science Center Weekly Findings
Recent findings by USGS Alaska Science Center staff and their collaborators.
Heat stress in Alaska's Pacific salmon
Alaska's freshwater spans a wide range of summer water temperatures, from ice-cold glacier water to warm rivers that routinely reach stressful levels for salmon, exceeding 18°C/64°F and even surpassing 21°C/70°F. Pacific salmon population trends are also varied and include declines in many Chinook salmon populations. Salmon declines are kitchen table issues because salmon fishing is key to the...
Polar Bear Research
Polar bears ( Ursus maritimus) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat. Our studies, ongoing since 1985, are focused on population dynamics, health and energetics...
