Filters: Types: Map Service (X) > Types: OGC WMS Service (X) > partyWithName: Western Alaska Landscape Conservation Cooperative (X)
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These raster datasets represent historical stand age. The last four digits of the file name specifies the year represented by the raster. For example a file named Age_years_historical_1990.tif represents the year 1990. Cell values represent the age of vegetation in years since last fire, with zero (0) indicating burned area in that year. Files from years 1860-2006 use a variety of historical datasets for Boreal ALFRESCO model spin up and calibration to most closely match historical wildfire dynamics.
These raster datasets represent historical stand age. The last four digits of the file name specifies the year represented by the raster. For example a file named Age_years_historical_1990.tif represents the year 1990. Cell values represent the age of vegetation in years since last fire, with zero (0) indicating burned area in that year. Files from years 1860-2006 use a variety of historical datasets for Boreal ALFRESCO model spin up and calibration to most closely match historical wildfire dynamics.
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 investigated the feasibility of using existing data to assess the variability in size-at-age and annual growth for juvenile Chinook salmon across the western Alaska landscape and to estimate the relationship between juvenile Chinook size-at-age or annual growth and spatial or temporal stream temperature gradients. The project showed adequate data exists...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Federal resource managers,
LCC Network Science Catalog,
Report,
SALMONS/TROUTS,
Intraspecific variation in the seasonal reproductive timing of Pacific salmon (Oncorhynchus sp.) has importantimplications for the resilience of salmon and for organisms in freshwater and terrestrial communities that dependon salmon resources. Stream temperature has well known associations with salmon spawn timing buthow stream and watershed geomorphology relates to the variation in salmon spawn timing is less understood.We used multivariate statistics applied to five environmental variables to compare conditions across36 watersheds in the Wood River basin in southwest Alaska. We found that the environmental conditionsin the first two axes of a principal components analysis (PCA) explained 76% of the variation in...
Categories: Data,
Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Federal resource managers,
LAKES,
LAKES,
LCC Network Science Catalog,
As Alaskans continue to feel the impacts of a changing climate, the need for resource managers to understand how these changes will alter aquatic systems and fisheries resources grows. Water temperature data collection has increased in recent years to begin to fill our gaps in knowledge about current thermal profiles; however, with Alaska’s vast landscapes and ubiquitous freshwater habitats, the need for water temperature data is ongoing. Many entities are collecting temperature data for a variety of purposes to meet project or agency specific goals. Statewide interest in thermal patterns and increasing data collection efforts provides Alaska’s scientific and resource managing community an opportunity to meet broader...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Conservation NGOs,
LCC Network Science Catalog,
RIVERS/STREAM HABITAT,
RIVERS/STREAM HABITAT,
RIVERS/STREAMS,
The Bristol Bay region represents an area of transition between the maritime climate of the southern coast and the continental climate of the Interior and Copper River Basin. These regions are largely protected by mountains areas and do not have a strong maritime influence. Temperatures are moderate and sea ice does form in the Bristol Bay but complete freeze-up of these waterways is not common. Low winter temperatures are below 0 degrees F with events below -20F. Summer temperatures are generally in the mid 60s with only a few days above 80. Highest precipitation is in August and September (Shulsky and Wendler 2007). The following table is a scoping tool that can be used to begin to evaluate community vulnerability...
Categories: Data;
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,
EROSION,
This report documents climate change impacts and potential impacts as described by the local people and interpreted through the lens of public health. It is the sixth report in a series describing climate change across Alaska, and the first report to focus on the Bristol Bay Region. In the Yupik and Aleut community of Pilot Point residents report changes to the weather, landscape, plants and wildlife. Extreme weather events are thought to be more common, the timing of seasons is more unpredictable, erosion to shorelines is occurring at a rapid rate, and consequentially, vulnerability to flooding is increasing. Identified health concerns include food security, damage to health-critical infrastructure, injury and...
Categories: Data;
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,
EROSION,
A high spatial resolution storm surge model was developed for the YK Delta area to assess biological impacts of storm surges under current and future climates. Storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme.The model was assessed with respect to measured water level data at the coast and, where available, spatial extent of inundation, for 6 storms from the period 1992 to 2011. In total, inundation projections from 9 historical storms (5 from the assessment + 4 others) were developed. For each storm, an spatial inundation index (time-integral of water...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ARCHAEOLOGICAL AREAS,
ARCHAEOLOGICAL AREAS,
Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
Alaska is an expansive state with abundant water resources. The complex landscape is defined by water and ice, but Alaska lacks quality mapping of its surface water features. The Alaska Hydrography Technical Working Group and Alaska Hydrography Database have worked to establish the Alaska Hydrography Strategic Plan to promote and guide a core mission to efficiently serve the current and future hydrography needs of Alaska for the next five years. This work will update the state’s hydrography in the National Hydrography Database from its current condition to meet national 1:24,000-scale standards. This work has focused on coordination of hydrography needs with partners and land managers, planning for the future hydrography...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
LCC Network Science Catalog,
Policy makers & regulators,
Report,
State agencies,
In recognition of the importance of salmon to the economy and ecosystems of southwestern Alaska and the pervasive influence of water temperature on salmon, voluntary network-based water temperature monitoring programs were established in the Bristol Bay region and the Kodiak Archipelago in 2015. These collaborative networks among federal and state agencies, non-governmental organizations and Native Tribes aim to provide reliable time-series stream and lake temperature data to support development of proactive approaches to management of salmon in response to climate warming. Collaborators are tackling the challenges of year-round field deployment, data management, data storage and sharing, and long-term funding....
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
LAKES,
LAKES,
LCC Network Science Catalog,
RIVERS/STREAM HABITAT,
These raster datasets represent historical stand age. The last four digits of the file name specifies the year represented by the raster. For example a file named Age_years_historical_1990.tif represents the year 1990. Cell values represent the age of vegetation in years since last fire, with zero (0) indicating burned area in that year. Files from years 1860-2006 use a variety of historical datasets for Boreal ALFRESCO model spin up and calibration to most closely match historical wildfire dynamics.
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