Filters: Categories: Data (X) > Date Range: {"choice":"year"} (X) > Tags: {"type":"theme","scheme":"http://gcmd.nasa.gov/learn/keywords.html"} (X)
262 results (43ms)|
Filters
Date Types (for Date Range)
Types
Contacts
Categories Tags (with Type=theme and Scheme=http://gcmd.nasa.gov/learn/keywords.html) |
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...
Categories: Collection,
Data;
Tags: Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
COASTAL PROCESSES,
COASTAL PROCESSES,
Describing the social network that links the interconnected partners is the first step to leverage the network’s capacity to be greater than the sum of its parts. The Northwest Boreal Landscape Conservation Cooperative partners and a social network scientist are applying social network theory to create a system of nodes and edges of a Conservation Social Network. The LCC partners were surveyed in 2015 and again in 2018, in order to measure the dynamics of partner communication. From this research, the partnership aims to better leverage partner expertise and better facilitate collaboration across geographic and organizational boundaries.
Categories: Data,
Project;
Tags: Academics & scientific researchers,
COMMUNICATIONS,
COMMUNICATIONS,
COMMUNICATIONS,
COMMUNICATIONS,
Baseline (1961-1990) average air temperature (degree F) for Alaska and Western Canada. This zip file contains three GeoTIFF rasters. The file names identifies whether a file represents an annual mean or a seasonal mean (i.e., summer or winter). Summer is defined as June - August; winter is defined as December - February. Baseline data are derived from Climate Research Unit (CRU) TS 3.1 data. CRU data courtesy of Scenarios Network for Alaska and Arctic Planning.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
Arctic Landscape Conservation Cooperative data.gov,
Data,
Interested public,
Using a bioclimatic envelope approach, University of Alberta investigators project how the distribution and abundance of boreal forest birds across North America will respond to different scenarios of future climate-change. Investigation emphasis is on mapping and quantifying potential range expansions of boreal bird species into Arctic and subarctic regions across Alaska and Canada. The final products demonstrate a broad continental-scale overview of potential shifts in avian distribution.
Northwest Boreal Landscape Conservation Cooperative (NWB LCC) partners are working to collectively design a sustainable future for the people, cultures, and ecosystems in the region. To begin this difficult task, the partners asked for a review and synthesis of existing natural resource management plans, covering both countries and all four states, provinces and territories. The NWB LCC Steering Committee believes that it is important to both be in alignment with current goals and objectives for land and resources, and to build on the work already completed by agencies, organizations and research institutions. The review summarized and synthesized 120 management plan goals within the NWB LCC geography. Goals and...
Categories: Data,
Project;
Tags: LAND MANAGEMENT,
LAND MANAGEMENT,
LCC Network Science Catalog,
Project,
Report,
Bering Sea storms introduce various environmental conditions that adversely affect human activity and infrastructure in the coastal zone and the ecosystems they depend upon. Storm impacts include interactions with sea ice in all potential states: large floes, shore-fast ice, and incipient sea-ice in frazil or slush state. In particular, sea ice can act to enhance or mitigate the impacts of adverse marine state, even as the event is occurring. Such occurrences should be part of a forecasting regimen, however scientific work has not been conducted on this phenomena, with the result that a physical model describing the formation of slush ice berms does not exist. To arrive at such a model requires visits to and input...
This project resulted in an extensive mapping of coastal change along the entire coastline of the Western Alaska Landscape Conservation Cooperative (LCC). The work provides 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, was 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 was not well documented. With this analysis, changes can be summarized for different land ownerships or other units to assess the extent of recent...
Categories: Data;
Tags: BARRIER ISLANDS,
BARRIER ISLANDS,
BARRIER ISLANDS,
BARRIER ISLANDS,
COASTAL AREAS,
This project resulted in an extensive mapping of coastal change along the entire coastline of the Western Alaska Landscape Conservation Cooperative (LCC). The work provides 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, was 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 was not well documented. With this analysis, changes can be summarized for different land ownerships or other units to assess the extent of recent...
Categories: Data;
Tags: BARRIER ISLANDS,
BARRIER ISLANDS,
BARRIER ISLANDS,
BARRIER ISLANDS,
COASTAL AREAS,
An integrated high resolution tide and storm surge model has been developedfor all of coastal Alaska. The model uses the ADCIRC basin-to-channelscale unstructured grid circulation code. Tidal forcing from global tidal modelsand meteorological forcing from the Climate Forecast System Reanalysisare used. The model’s tidal solution has been validated at 121 shelf andnearshore stations. The model’s skill has been investigated for summer, falland winter storms. Sea ice has been incorporated through a parameterizedwind drag coefficient which modifies the air-sea drag under ice coverage.Three large storms with distinctly different ice coverages were chosen to exhibitthe effect of sea ice on the resulting storm surge. The...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
COASTAL AREAS,
COASTAL AREAS,
COASTAL PROCESSES,
COASTAL PROCESSES,
This project used 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 completed the Kotzebue Sound shoreline, which now has been included in the state-wide ShoreZone dataset. The complete ShoreZone dataset for the region was 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.
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,
Viable sockeye salmon populations are critical to the economy, culture, and freshwater ecosystems of Bristol Bay in Western Alaska, and it is unclear how populations might respond to warming temperatures during the critical life history stages of spawning and embryo incubation. The overarching goal of the project is to understand how temperature might influence population-specific patterns of embryo incubation, timing of hatching and fry emergence, and sockeye salmon embryo survival. By combining analyses of data from two large lake systems in the Kvichak watershed, laboratory rearing experiments to elucidate functional relationships, and simulation modeling, this project quantifies biological responses to changing...
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 leveraged 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 considered the end to end supports necessary to gather, promote, and serve oceanographic data along Alaska’s Western coast. Real‐time sea‐state conditions were transmitted via both high and low bandwidth sites, directly benefited emergency managers and local communities, particularly in dealing...
Categories: Data;
Tags: Academics & scientific researchers,
BUOY POSITION,
BUOY POSITION,
EROSION,
EROSION,
Webinar given by the lead PI about findings associated with project: Water Temperature Regimes in the Togiak NWR and Wood-Tikchik State Park
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ECOSYSTEM FUNCTIONS,
ECOSYSTEM FUNCTIONS,
Federal resource managers,
LCC Network Science Catalog,
Regional & county planners,
This project used existing ShoreZone coastal imagery to map 719 km of shoreline in Bristol Bay, from Cape Constantine to Cape Newenham. This section of coastline is an extremely important herring spawning area and an important component of the Bristol Bay fisheries. Intertidal and nearshore vegetation, on which herring spawn, was catalogued as part of the mapping and, along with shore types, coastal substrate, and coastal biota, added to the state-wide ShoreZone dataset.
Categories: Data;
Tags: COASTAL HABITAT,
COASTAL HABITAT,
COASTAL LANDFORMS,
COASTAL LANDFORMS,
DATA DELIVERY,
Baseline (1961-1990) average total precipitation (mm) for Alaska and Western Canada. Baseline results for 1961-1990 are derived from Climate Research Unit (CRU) TS 3.1.01 data. Data courtesy of Scenarios Network for Alaska and Arctic Planning. The file names identifies whether a file represents an annual (i.e., annual) mean or a seasonal mean (i.e., summer or winter). Summer is defined as June - August; winter is defined as December - February.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
Arctic Landscape Conservation Cooperative data.gov,
Data,
Interested public,
A collection of rasters that depict baseline (1961-1990) average air temperature and average total precipitation. These rasters were generated by Arctic LCC staff using data provided by Scenario Network for Alaska and Arctic Planning (SNAP).
Categories: Collection,
Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: AIR TEMPERATURE,
AIR TEMPERATURE,
Arctic Landscape Conservation Cooperative data.gov,
Collection,
Interested public,
Arctic wetlands, where millions of local and migratory birds nest, are composed of a mosaic of ice wedge polygons, non-patterned tundra, and large vegetated drained thaw lake basins. Regional climate projections suggest that evapotranspiration, rainfall, and snowfall will increase, making it difficult to predict how surface water distribution might change and how habitats for the invertebrate resources used by waterbirds will be impacted. This study will focus on evaluating how climate change will affect the invertebrate community, and whether the change in climate (through changes in hydrology and surface energy balance) could induce a trophic mismatch that might alter the growth and survival of shorebird young....
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
BIRDS,
BIRDS,
Conservation Design,
Conservation NGOs,
Posters describing coastal processes, food cycles, and relationships among people and marine resources.
We propose using an existing, longterm data set of sea urchin production, sea otter performance, and ecosystem state metrics from the last 30 years tobuild a spatially explicit sea otter population viability analysis (PVA) model, incorporating climate change effects. We propose a 3-pronged approach in year 1 of this project to evaluate (obj. 1) variability in sea urchin demographics over space and time to identify scaledependent patterns of variation in production using existing datasets, (obj. 2) define the direct effects of climate change and ocean acidification on sea urchin productivity through indepth literature review and contributions from experiments by collaborators, and (obj. 3) determine how effects of...
|
|
