Filters: partyWithName: LCC Network Data Steward (X) > partyWithName: Western Alaska Landscape Conservation Cooperative (X) > Categories: Project (X) > partyWithName: Karen A Murphy (X)
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This project evaluates the connections between climate change impacts and health in Bristol Bay communities. Climate change impacts were assessed through the lens of public health, with an eye towards the potential effects on disease, injury, food and water security, and mental health. Three focal communities were included in this assessment: Nondalton, a lake community, Levelock, a river community, and Pilot Point, a coastal community. The resulting assessment reports will be used to assist focal communities, as well as neighboring communities, in addressing climate-change related issues.
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: CLIMATE CHANGE IMPACT ASSESSMENT MODELS,
CLIMATE CHANGE IMPACT ASSESSMENT MODELS,
COASTAL AREAS,
COASTAL AREAS,
Decision Support,
The YKD is also home to the largest subsistence-based economy in Alaska. Yet, the low-lying landscape mosaic characterizing the YKD is at risk of massive change associated with projected sea level rise (SLR), increasing storm frequency and severity and permafrost degradation due to future climate change. Therefore, to conserve ecosystem services associated with the botanical and faunal richness in the YKD, management strategies in the region should not only be based on current ecosystem conditions, but also incorporate projected changes in landscape composition. The goal of this project is to provide managers and people living in the YKD, an assessment of the vulnerability of the landscape to future change and to...
This project evaluated the potential impacts of storm surges and relative sea level rise on nesting geese and eider species that commonly breed on the Yukon-Kuskokwim Delta (Y-K Delta). Habitat suitability maps for breeding waterbirds were developed to identify current waterbird breeding habitat and distributions. Short-term climate change impacts were assessed by comparing nest densities in relation to magnitude of storms that occurred in the prior fall from 2000-2013. Additionally, nest densities were modeled using random forests in relation to the time-integrated flood index (e.g., a storm specific measure accounting for both water depth and duration of flooding) for four modeled storms (2005, 2006, 2009, and...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: DELTAS,
DELTAS,
DUCKS/GEESE/SWANS,
DUCKS/GEESE/SWANS,
Decision Support,
Western Alaska is one of the fastest warming regions on the globe and recent trends are expected to continue into the next century, likely having substantial effects on the aquatic resources of this region. While increased air temperatures will have direct effects on water temperatures, indirect effects due to changes in precipitation, groundwater characteristics, and flow regimes may have much larger effects on aquatic ecosystems. Coastal watersheds of Western Alaska are expected to receive 25-50% more snow and 18-25% more rain in the next century. Future “climate warming” may actually cool some streams if the ratio of snow to rain increases for coastal watersheds, while rain-dominated streams are likely to become...
Thermal response of western Alaska lakes and lagoons to past, present, and future changes in climate
Water temperature in lakes and lagoons plays a key role in hydrology, water quality, and habitat suitability for aquatic organisms. The purpose of this project is to provide land and resource managers with information related to the past, present, and future temperature trends in lake surface waters in western Alaska. Through a combination of remote sensing, in situ data collection, model development, we will analyze similarities and differences related to spatial and temporal patterns of lake surface temperatures in western Alaska from 1985 to 2100.
Water temperature plays a critical role in the health of pre-smolt salmon life stages, and changes in water temperature may be a strong driving factor on growth and survival of juvenile Chinook salmon. Climate is expected to warm substantially in the coming decades in western Alaska, potentially affecting juvenile salmon condition in freshwater habitats. This project investigates the variability in size-at-age and annual growth for juvenile Chinook salmon across the western Alaska landscape, the association of juvenile Chinook size-at-age or annual growth with spatial or temporal stream temperature gradients, and whether expected water temperature changes in western Alaska will affect juvenile Chinook salmon habitat...
Understanding the causes of relative sea level rise requires knowledge of changes to both land (uplift and subsidence) and sea level. However, measurements of coastal uplift or subsidence are almost completely lacking in western Alaska. This project will result in precision measurements of prioritized benchmarks across the Western Alaska geography. This will improve the network of published tidal benchmark elevations, allowing for tidal datum conversion in more places, and providing a necessary component for improved inundation studies in coastal communities and low-lying areas.
The project will complete an extensive mapping of coastal change along the entire coastline of the Western Alaska Landscape Conservation Cooperative (LCC). The work will provide important baseline information on the distribution and magnitude of landscape changes over the past 41 years. The extent of change to the coastline and to coastal features, such as spits, barrier islands, estuaries, tidal guts and lagoons, is known to be substantial in some areas along the coast (e.g., portions of the Yukon–Kuskokwim Delta), although the extent of change along the full Bering Sea coast is not well documented. With this analysis, changes can be summarized for different land ownerships or other units to assess the extent of...
Categories: Data,
Project;
Tags: BARRIER ISLANDS,
BARRIER ISLANDS,
COASTAL LANDFORMS/PROCESSES,
COASTAL LANDFORMS/PROCESSES,
DEGRADATION,
This project uses previously collected ShoreZone imagery to map nearly 1,600 km of coastline between Wales and Kotzebue. With additional mapping supported by the Arctic LCC and National Park Service, this effort will complete the Kotzebue Sound shoreline, which will be included in the state-wide ShoreZone dataset. The complete ShoreZone dataset will be used to conduct a coastal hazards analysis and create maps that identify areas undergoing rapid coastal erosion and areas that are sensitive to inundation by storm surge and sea level rise.
Categories: Data,
Project;
Tags: BEACHES,
BEACHES,
DISASTER RESPONSE,
DISASTER RESPONSE,
Data Management and Integration,
Permafrost thaw can be a major driver of landscape change. Regions in Western Alaska are highly vulnerable to such thawing due to the high ice content of the soils and the lack of thermal monitoring in this region has limited our ability to understand current thermal state and establish thawing rates. This study established a permafrost monitoring network in this region, providing a baseline of permafrost thermal regimes for assessing future change at a total of 26 automated monitoring stations. Stations have collected year-round temperature data from the active layer and the permafrost starting from the summer of 2011. The strong correspondence between spatial variability in permafrost thermal regime and an existing...
Concern about invasive species in Alaska is a growing concern, attracting attention from land managers, politicians and the public. Nearly half the new discoveries of invasive plants, animals, and insects in the state are reported by concerned individuals with a general interest in invasive species. The development of a mobile application for invasive plant identification and reporting will help enable the public to gather and share new invasive plant discoveries. This project will result in the development of a decision tool for identifying non-natives plant species, which will provide the foundation for the app. Project staff will also review user-submitted requests for identification assistance, review app-generated...
To assess the vulnerability of a region to invasive plants, documentation of the presence or absence of invasive plants is necessary. This project expands on work initiated by the EPA to identify invasive plants in rural communities in the Bristol Bay region. Between the two efforts, 26 villages will be inventoried for invasive plant species; this will provide both an essential baseline for understanding the potential impact from these plants and the opportunity to treat the existing populations before they invade new areas. The second part of the project will use these data to assess the vulnerability of important subsistence plants (blueberry and low-bush cranberry) to changes in pollination, as key insect species...
Categories: Data,
Project;
Tags: Conservation NGOs,
Data Acquisition and Development,
LCC Network Science Catalog,
Presentation,
Project,
Full Project TitleProject SummaryProject ID: WA2012_23 Lead Investigator: Michael Brubaker, Alaska Native Tribal Health ConsortiumCollaborators: James Berner, Alaska Native Tribal Health Consortium; Kevin Zweifel, Norton Sound Health Corporation; Anahma Shannon, Kawerak, Inc.; Paul Eaton, Maniilaq Association; John Chase, Northwest Arctic BoroughProject Duration: 2012 - 2014No one has better knowledge, and opportunity to document, how coastal storms affect the coast than the people who live in coastal communities. By training the network of Local Environmental Observers (LEOs) to collect coastal storm data in Western Alaska, we improve local capacity to engage in coastal observations. In addition, this project...
Categories: Data,
Project;
Tags: Interested public,
LCC Network Science Catalog,
Presentation,
Project,
Regional & county planners,
The coastal areas of the Yukon and Kuskokwim River Deltas (YKD) are among the most productive in Alaska. The fish, wildlife, and plant resources have been an integral part of communities in this region for thousands of years. Some of the same traits that make it so productive also make it a challenging place to live and work. To better understand and plan for coastal erosion and storm surges, or plan for roads and trails, information about elevation patterns on the YKD are needed. Current topographic maps have limited value given the flatness of the area. A group of partners worked together with USGS to collect elevation information and create a map that will reveal a portion of the delta’s topography. Kodiak Mapping...
This project will produce an existing vegetation type map at 30m resolution for the entire Western Alaska LCC region. The lack of a consistently mapped vegetation data layer for Alaska has been identified as a primary road block for many conservation and management entities across the state. This project will address a number of the LCC conservation goals by addressing a baseline science need that is the foundation for current and future project within the region.
Nearshore bathymetry is a vital link that joins offshore water depths to coastal topography. Seamless water depth information is a critical input parameter for reliable storm surge models, enables the calculation of sediment budgets and is necessary baseline data for a range of coastal management decisions. Funding from the Western Alaska LCC resulted in the purchase of field equipment capable of shallow water measurements in rural settings, allowing collection of nearshore bathymetry around western Alaska communities.
Categories: Data,
Project;
Tags: Data Acquisition and Development,
Datasets/Database,
Decision Support,
LCC Network Science Catalog,
Presentation,
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