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Lack of complete snow cover for the past 3 winters in southwestern Alaska has forced agencies to postpone moose surveys due to the likelihood of underestimating the population/lack of comparability to previous surveys. Poor snow conditions lower the sightability of moose, yet, for most regions of Alaska, the variation in moose sightability during suboptimal conditions has not yet been quantified. Because scientists are predicting less snowfall in this region over the long term, we initiated research to estimate sightability correction factors (SCF_c) using radiocollared animals to apply to abundance estimates obtained via the GeoSpatial Population Estimator (GSPE) method. The Project Goal is to develop a model that...
Categories: Data, Project; Tags: 2016, Academics & scientific researchers, Academics & scientific researchers, CALIBRATION/VALIDATION, CALIBRATION/VALIDATION, All tags...
Research on coastal change in Western Alaska has increased rapidly in recent years, making it challenging to track existing projects, understand their cumulative insights, gauge remaining research gaps, and prioritize future research. This project will identify existing coastal change projects in Western Alaska and synthesize information about each project. The resulting report will document the project landscape for communities facing change, decision-makers navigating change, researchers pursuing projects, as well as funding agencies trying to prioritize where to allocate resources.
In Alaska, changes in snow, ice, and weather, have resulted in risks to human lives, infrastructure damage, threats to valuable natural resources, and disruption of hunting, fishing, and livelihoods.Leaders from the Aleutians to the Chukchi Sea came together for a series of Coastal Resilience and Adaptation Workshops, spearheaded by three Landscape Conservation Cooperatives and the Aleutian Pribilof Islands Association. Tribal leaders, resource managers, community planners, and scientists explored strategies to adapt to these unprecedented changes.The workshop series brought together 14 Organizing Partners 34 Tribes, 15 State & Federal Agencies, and a total of more than 200 participants to meet in four regional...
Categories: Data, Project; Tags: Academics & scientific researchers, CLIMATE ADVISORIES, CLIMATE ADVISORIES, CLIMATE INDICATORS, CLIMATE INDICATORS, All tags...
The western coastline of Alaska is highly susceptible to coastal storms, which can cause coastal erosion, flooding, and have other pernicious effects to the environment and commercial efforts. The reduction in ice coverage due to climate change could potentially increase the frequency and degree of coastal flooding and erosion. Further, estuaries and delta systems act as conduits for storm surges, so when there is less nearshore ice coverage, these systems could introduce storm surge into terrestrial environments unaccustomed to saline intrusion, flooding, or other alien biogeochemical factors.​This project quantified the effect of reduced nearshore ice coverage on coastal flooding. The project developed a large...
Water temperature is one of the most significant factors in the health of stream ecosystems. Temperature plays a critical role in salmonid reproduction and survivorship and is an essential indicator for monitoring the health of Bristol Bay salmon habitats, which support vital subsistence, commercial and sport fisheries. The objectives of this project are to develop an Implementation Strategy for a voluntary participation water temperature monitoring network for Bristol Bay; expand the annual Water Quality/QAPP Recertification training for local monitors to include standardized water temperature monitoring protocols; initiate temperature monitoring in select drainages; and seek long-term funding for a comprehensive...
Climate change is likely to alter snow patterns and characteristics, impacting vegetation, hydrology, permafrost condition, wildlife, and the Alaskans who depend on these resources. Currently, many areas of western Alaska are lacking important data related to snowpack and snow conditions, including the prime winter range for the Western Arctic Caribou Herd (WACH). This project will help monitor snow conditions, which are vital to understanding and predicting landscape level impacts of climate change in western Alaska.​
Streams, rivers, and lakes of the Kodiak Archipelago, Alaska, provide essential spawning and rearing habitat for millions of Pacific salmon collectively regarded as a foundation of the regional ecosystem and economy. Climate projections for the archipelago indicate probable increases in annual and seasonal air temperature over the next 85 years. Corresponding increases in the temperature of freshwaters also are expected, which may adversely influence the biology of salmon, the quality of salmon habitat, and the availability of salmon to support the ecosystem and economy. It is essential that salmon managers be provided with relevant and reliable information on expected changes in thermal regimes and their influence...
Southwest Alaska is one of the fastest warming regions on Earth and its aquatic resources are at distinct risk from changing climate. Previous work has demonstrated that a variety of physical and biological processes are sensitive to changing climate regimes in this region, including those that support wildlife and fisheries that are of substantial importance for subsistence and commercial activities. This collaborative project will result in the compilation of a database of existing stream, river and lake temperatures that is unmatched anywhere else in Alaska in terms of its spatial and their temporal coverage. Analysis of these data will result in refinement of the monitoring plan developed to characterize thermal...
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The Integrated Ecosystem Model for Alaska project (IEM) uses down-scaled climate models as the drivers of ecosystem change to produce forecasts of future fire, vegetation, permafrost and hydrology regimes at a resolution of 1km. This effort is the first to model ecosystem change on a statewide scale, using climate change input as a major driving variable. The objectives of the IEM project are as follows; to better understand and predict effects of climate change and other stressors on landscape level physical and ecosystem processes, and to provide support for resource conservation planning.The IEM will provide resource managers with a decision support tool to visualize future landscapes in Alaska. Model outputs...
Water temperature influences all biological and physicochemical interactions within aquaticsystems. Water temperature monitoring is an essential part of lake management capable of providing early warning signs of climate change using straight-forward, low-cost techniques. Water temperature data acquired in this study will be used to support analyses of trend of the lacustrine component of sockeye salmon habitat. The need for such analyses is acute because climate change will influence lake habitat quality; growth and survival of juvenile sockeyesalmon; and subsistence, recreational, and commercial harvest opportunities. Additionally, data acquired in this project will be eventually combined with data collected by...
Baseline hydrologic and topographic data in relation to waterfowl productivity is very limited on the Y-K Delta. When considering the potential impacts of climate-driven change to nesting and brood-rearing habitats, these baseline data are important for making informed management decisions. This project takes advantage of a long-term field camp on Kigigak Island to expand instrumentation for monitoring pond water levels and salinities, and tidal dynamics. It will also support elevation surveys and the synthesis of environmental and biological datasets for inclusion in climate change models.
The Alaska Ocean Observing System, Western Alaska Landscape Conservation Cooperative (Western AK LCC), and the USGS Alaska Climate Science Center jointly conducted a Coastal Hazards Workshop May 30-31, 2012. Participants included a broad array of subject matter experts and stakeholders involved in coastal issues from a variety of perspectives. Workshop participants reviewed the current state of the coast and the state of understanding of the coast from a systems perspective, discussed stakeholder information needs and developed the framework for a conceptual model focused on natural-human system impacts due to coastal erosion and inundation.
The compilation of an accurate and contemporary digital shoreline for Alaska is an important step in understanding coastal processes and measuring changes in coastal storm characteristics. Consistent with efforts by the United States National Park Service (NPS) at Bering Land Bridge National Preserve (BELA) and Cape Krusenstern National Monument, high quality, defensible digital shoreline datasets are under development for select coastal parks in the State of Alaska. Near BELA, for the area from Cape Prince of Wales to Cape Espenberg, extended revised shoreline coverage can be produced using true color coastal shoreline imagery to update the boundary demarking the mean high water (MHW) shoreline, which represents...
Thermokarst lakes (lakes formed in a depression by meltwater from thawing permafrost) are common features and important ecosystems in Alaska. There is increasing concern about how thermokarst lakes respond to projected climate change and what the potential impacts are on regional carbon cycle dynamics, hydrological regime, and habitat character distribution. This demands better understanding of the location of thermokarst lakes and how their characteristics vary in landscape that will allow to better estimate the risks associated with lake area dynamics. This study attempts to map state-wide thermokarst lake distribution of Alaska, with a minimum size of 0.1 ha, using object oriented classification of high resolution...
One of the major challenges in understanding changes in coastal processes in western Alaska is the lack of measured ocean data in the region. ​This project leverages existing human resources, and physical and computational infrastructure to collect and disseminate oceanographic observations in the Bering Sea. From instrument restoration, transport and deployment, through data streaming, recovery and dissemination, this project considers the end to end supports necessary to gather, promote, and serve oceanographic data along Alaska’s Western coast. Real‐time sea‐state conditions directly benefit emergency managers and local communities, particularly in dealing with small craft hazards and predicting storm surges...
Researchers have consistently prioritized the need to measure the status and trends of stream and lake temperatures across Alaska landscapes, and to compile those data for predictive modeling. The goal of this project is to develop an open statewide water temperature network with easily understood and readily implemented data standards to support landscape-level assessments. Development of two-tiered data standard will allow data collectors and data managers the flexibility to use their existing agency protocols, yet set standards that are scientifically robust and suitable for landscape-level analysis.
map background search result map search result map Water temperature monitoring standards for Alaska Strategy development for establishment of a voluntary water temperature monitoring network in the Kodiak Archipelago, Alaska Develop a voluntary participation water temperature network implementation plan for the Ahklun Mountains and Bristol Bay Lowlands Direct snow condition monitoring at key ecological sites in remote western Alaska. Water temperature regimes in the Togiak NWR and Wood-Tikchik State Park Moored All-season Vertical Temperature Arrays in Lakes on Kodiak, Togiak and Alaska Peninsula/Becharof NWRs Integrated Ecosystem Model (AIEM) for Alaska and Northwest Canada (COPY) Moored All-season Vertical Temperature Arrays in Lakes on Kodiak, Togiak and Alaska Peninsula/Becharof NWRs Integrated Ecosystem Model (AIEM) for Alaska and Northwest Canada (COPY)