Alaska
Alaska
The Alaska Climate Adaptation Science Center (AK CASC) works with natural and cultural resource managers, policy makers, Alaska Native Tribes, and researchers to provide actionable science, tools, and techniques for climate adaptation. The AK CASC specializes in creating climate models to help forecast species, ecosystem, and human community responses to climate change.
Alaska CASC
Alaska CASC
Learn more about the Alaska Climate Adaptation Science Center below.
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Co-producing Climate Research and Adaptation through Partnerships with Alaska Native Communities
Climate change is impacting the land and resources that Alaska Native peoples rely on for food security, resource management, and cultural continuity. In Southeast Alaska, communities face increased weather variability due to climate change, which impacts subsistence food resources in streams and coastal ocean waters. Alaska Native communities are asking for co-production models of...
Community Engagement in a Stream-network Assessment of Salmon Thermal-habitat in the Situk River Watershed of Yakutat, Alaska
The Situk River is among the most productive resource in Alaska, with nine native fish species and 10 times the density of juvenile coho salmon than any other Southeast Alaskan watershed. The associated fisheries in the Situk River and its adjoining estuary drive a $2 million economy for the community of Yakutat (population 600), with 89 percent of the households harvesting salmon for...
Compilation of Historical Water Temperature Data for Large Rivers in Alaska using the Landsat Satellite Archive
Water temperature plays a large role in freshwater ecosystems in the Arctic and sub-Arctic. It affects the physical and biological features of rivers, like how the water interacts with the landscape and the life cycles of organisms that live in the river. For example, unseasonably warm water temperatures in Alaska’s large rivers in 2019 caused large numbers of salmon to die before they...
Enhancing Climate Adaptation for Native Communities in Western Alaska: Linking Pollinator Diversity and Abundance to Berry Production in a Rapidly Changing Environment
Berry-producing plants, a key resource in Alaska Native communities, provide primary subsistence and have been integral to maintaining cultural cohesion, sense of place, and physical ties to the surrounding landscape. Despite the importance of berry-producing plants, relatively little is known about their vulnerability to changes in climate and environmental conditions. The dynamics of...
Enhancing Water Temperature Monitoring Efforts across Alaska through Collaborative Leveraging of a Statewide Database
Water temperatures affect the distribution, growth potential, and productivity of stream fishes that are targeted in subsistence, sport, and commercial fisheries across Alaska, making stream and lake temperature data critical for managing freshwater resources. Evaluating the variation in temperatures across Alaska will improve understanding of impacts of both climate change and...
Evaluating How Snow Avalanches Impact Mountain Goat Populations in Southeast Alaska
Snow avalanches alter mountain environments and have both beneficial and harmful effects on wildlife. Avalanches can benefit wildlife by creating open areas for grazing but can also be deadly when animals are buried in avalanche debris. Avalanches pose high risks to mountain goats because they inhabit rugged and steep terrain, but the actual impacts of avalanches on mountain goats remain...
Future of Aquatic Flows: Impacts of Cryospheric Change on Aquatic Flows and Freshwater Habitat Quality for Fish and Communities
High latitude northern ecosystems are currently warming twice as fast as the global average. Over the last several decades, this has caused dramatic losses of frozen area in the Arctic and sub-Arctic. However, it is unclear how melting coastal mountain glaciers, thawing permafrost, and declines in snowpack will affect the quality of freshwater habitat for culturally and economically...
Groundwater Flow and Temperature Modeling to Predict Stream Temperatures in Beaver Creek, Kenai Peninsula, Alaska
Salmon are an important resource to the ecosystems, economy, and culture of the Kenai Peninsula, Alaska. However, salmon are under increasing stress due to warming water temperatures and decreasing stream flow. Groundwater is a major contributor to many streams that can help maintain fish habitat during low flows and contributes cooler water that regulates stream temperatures in the warm...
Integrating Stream Discharge and Temperature Monitoring for Tribal Partners in Southeast Alaska
Stream discharge and temperature patterns are being altered by climate change, but documenting these changes on the community level is challenging without community partners trained in suitable data collection techniques. The USGS Juneau Field Office is collaborating with the Yakutat Tlingit Tribe (YTT), the Southeast Alaska Tribal Ocean Research (SEATOR) network, and the Southeast...
Partnering with Alaska Native Tribes, Regional Tribal Consortia, and ANCSA Corporations
Since time immemorial, the Indigenous peoples of Alaska have taken care of the land, water, fish, birds, and wildlife that sustains their livelihood, traditions, and communities. This close relationship with the land, water, and natural world puts these communities at the forefront of climate change impacts. Drawing upon a strong history of adaptation and innovation, Native Alaskans are key...
Alaska’s Berry Future: Planning for Changing Resources in an Altered Climate
Berries are a crucial nutritional and cultural resource to communities and ecosystems in boreal, subarctic and arctic areas; however, berry abundance and the timing of the berry lifecycle is becoming more variable and unpredictable due to climate change. Climate adaptation plans across the state of Alaska identify changes in berry timing and availability as primary concerns and point to...
Assessing the Risk to National Park Service Lands in Alaska Imposed by Rapidly Warming Temperatures
The observed rate of warming in many National Park Service (NPS) lands in Alaska has accelerated soil subsidence and increased landslide frequency, thereby threatening public access, subsistence activities and infrastructure in NPS regions. Areas most affected by this change are along the Denali Park Road, the proposed Ambler Road through Gates of the Arctic National Park and Preserve...