Filters: Tags: {"type":"theme"} (X) > Types: OGC WFS Layer (X) > partyWithName: Glen Liston, PhD (X)

Filters Date Range Past year (8) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Budget (4) Project (4) Citation (1) Shapefile (1) Types Map Service (8) OGC WMS Layer (8) OGC WMS Service (8) Citation (1) Downloadable (1) Shapefile (1) Contacts Arctic Landscape Conservation Cooperative LCC Network Data Steward U.S. Fish and Wildlife Service National Fish and Wildlife Foundation Arctic Field Office More... Categories Data (8) Project (4) Publication (1) Tag Schemes http://gcmd.nasa.gov/learn/keywords.html (55) https://earthdata.nasa.gov/gcmd-forum (55) Tags (with Type=theme ) snow depth (10) lakes (6) snow (6) snow cover (6) lake ice (4) snow/ice (4) air temperature (2) More... View Results as: JSON ATOM CSV

Mapping Suitable Snow Habitat for Polar Bear Denning Along the Beaufort Coast of Alaska The purpose of this project is to provide better information to industry and regulatory agencies regarding the likely locations of polar bear dens. This project integrates snow physics, high-resolution digital elevation data, and bear biology to produce more refined and accurate maps predicting suitable polar bear den habitat than are currently available. The work consists of data gathering, consultation between snow and bear scientists, modeling, and sensitivity studies to understand the various factors influencing den location and evolution along the Beaufort Coast.The proposed work is intended to refine current methods of identifying polar bear denning sites by incorporating higher-resolution topographic data... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: DIGITAL ELEVATION/DIGITAL TERRAIN MODELS, DIGITAL ELEVATION/DIGITAL TERRAIN MODELS, Data Acquisition and Development, Informing Conservation Delivery, LCC Network Science Catalog, All tags... Policy makers & regulators, Project, Report, SNOW COVER, SNOW COVER, SNOW DEPTH, SNOW DEPTH, SNOW/ICE, SNOW/ICE, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, Fewer tags FishCAFE: Response of an Arctic Freshwater Ecosystem to Climate and Land-use Change This project provides a better understanding how linkages among surface-water availability, connectivity, and temperature mediate habitat and trophic dynamics of the Fish Creek Watershed (FCW). These interrelated processes form a shifting mosaic of freshwater habitats across the landscape that can be classified, mapped, understood, and modeled in response to past and future climate and land-use change in a spatial and temporal context. Developing scenarios of freshwater habitat change in this context provides managers and scientists with a flexible template to evaluate a range of potential responses to climate and land-use change. Applying this approach in the FCW is made feasible because of the availability of... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Datasets/Database, ECOSYSTEM FUNCTIONS, ECOSYSTEM FUNCTIONS, Federal resource managers, All tags... LAKE ICE, LAKE ICE, LAKES, LAKES, LCC Network Science Catalog, PERMAFROST, PERMAFROST, Population & Habitat Evaluation/Projection, Project, Publication, RIVER ICE, RIVER ICE, Training/Outreach/Workshop, Vulnerability Assessment, WETLANDS, WETLANDS, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, environment, environment, geoscientificInformation, geoscientificInformation, inlandWaters, inlandWaters, onGoing, Fewer tags Operational Polar Bear Den Mapping Historically, available polar bear den habitat models have been based primarily on the presence of topographic features capable of capturing drifting snow. In any given season, however, the availability and precise location of snowdrifts of sufficient size to accommodate a bear den depends on the antecedent snowfall and wind conditions, and these vary from one year to the next. Thus, suitable topography is a necessary pre-condition, but is not sufficient to accurately predict potential den sites in a given year. To satisfy the requirements of agency and industry managers what is needed is a user-friendly decision-support tool that takes into account the current fall and early-winter meteorological conditions, and... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, BEARS, BEARS, Decision Support, Federal resource managers, All tags... Informing Conservation Delivery, LCC Network Science Catalog, Project, Publication, SNOW COVER, SNOW COVER, SNOW DEPTH, SNOW DEPTH, State agencies, User Manual, biota, biota, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, Fewer tags SNOWDATA: Snow Datasets for Arctic Terrestrial Applications (Alaska Arctic LCC Distributed Snow Property Datasets) Understanding snow conditions is key to developing a better understanding of hydrologic, biological, and ecosystem processes at work in northern Alaska. The required snow datasets currently do not exist at spatial or temporal scales needed by end users such as scientists, land managers, and policy makers. There are a wide variety of snow datasets that may be generated by this project. The list of desired datasets will be refined based on input from potential end users. However, outputs could include daily spatial distributions spanning the spatial and temporal domains of interest of the following variables: air temperature, wind speed and direction, relative humidity, surface (skin) temperature, incoming solar radiation,... Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data Acquisition and Development, Datasets/Database, Federal resource managers, GLACIER MASS BALANCE/ICE SHEET MASS BALANCE, GLACIER MASS BALANCE/ICE SHEET MASS BALANCE, GLACIERS, GLACIERS, LCC Network Science Catalog, MODELS, MODELS, PRECIPITATION, PRECIPITATION, PRECIPITATION AMOUNT, PRECIPITATION AMOUNT, Population & Habitat Evaluation/Projection, Project, RAIN, RAIN, SNOW, SNOW, SNOW COVER, SNOW COVER, SNOW DENSITY, SNOW DENSITY, SNOW DEPTH, SNOW DEPTH, SNOW ENERGY BALANCE, SNOW ENERGY BALANCE, SNOW MELT, SNOW MELT, SNOW WATER EQUIVALENT, SNOW WATER EQUIVALENT, SNOW/ICE, SNOW/ICE, SNOW/ICE TEMPERATURE, SNOW/ICE TEMPERATURE, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, environment, environment, onGoing, Fewer tags Modeling snowdrift habitat for polar bear dens Throughout the Arctic most pregnant polar bears (Ursus maritimus) construct maternity dens in seasonal snowdrifts that form in wind-shadowed areas. We developed and verified a spatial snowdrift polar bearden habitat model (SnowDens-3D) that predicts snowdrift locations and depths along Alaska’s Beaufort Sea coast. SnowDens-3D integrated snow physics, weather data, and a high-resolution digital elevation model (DEM) to produce predictions of the timing, distribution, and growth of snowdrifts suitable for polar bear dens. SnowDens-3D assimilated 18 winters (1995 through 2012) of observed daily meteorological data and a 2.5 m grid-increment DEM covering 337.5 km2 of the Beaufort Sea coast, and described the snowdrift... Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMAL ECOLOGY AND BEHAVIOR, ANIMAL ECOLOGY AND BEHAVIOR, ANIMAL MANAGEMENT SYSTEMS, ANIMAL MANAGEMENT SYSTEMS, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, BEARS, BEARS, Federal resource managers, LCC Network Science Catalog, Publication, REGULATORY MODELS, REGULATORY MODELS, SNOW, SNOW, SNOW COVER, SNOW COVER, SNOW DEPTH, SNOW DEPTH, SNOW DEPTH, SNOW DEPTH, State agencies, TOPOGRAPHY, TOPOGRAPHY, WIND SPEED/WIND DIRECTION, WIND SPEED/WIND DIRECTION, biota, biota, completed, elevation, elevation, environment, environment, geoscientificInformation, geoscientificInformation, Fewer tags SnowDens-3D User Documentation Historically, available den habitat models have been based primarily on the presence of topographic features capable of capturing drifting snow. In any given season, however, the availability and precise location of snowdrifts of sufficient size to accommodate a bear den depends on the antecedent snowfall and wind conditions, and these vary from one year to the next. Thus, suitable topography is a necessary pre-condition, but is not sufficient to accurately predict potential den sites in a given year.To satisfy the requirements of agency and industry managers what is needed is a user-friendly decision-support tool that takes into account the current fall and early-winter meteorological conditions, and provides den... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Arctic Landscape Conservation Cooperative data.gov, BEARS, BEARS, Federal resource managers, All tags... LCC Network Science Catalog, MAMMALS, MAMMALS, SNOW, SNOW, SNOW COVER, SNOW COVER, SNOW DEPTH, SNOW DEPTH, SNOW DEPTH, SNOW DEPTH, State agencies, WIND SPEED/WIND DIRECTION, WIND SPEED/WIND DIRECTION, biota, biota, completed, environment, environment, geoscientificInformation, geoscientificInformation, userGuide, Fewer tags Fish Creek Watershed Lake Classification Lake polygons within the Fish Creek Watershed, Alaska were created and classified for a number of variables relevant to size, depth, hydrology, connectivity etc. Products derived from a 5m resolution IfSAR digital surface model by calculating a zero slope. Each feature was expanded by one pixel around the entire perimeter since all waterbodies were truncated by this during the slope calculation. Lakes >=1ha were manually extracted from the dataset and their perimeters further corrected using 2002 CIR orthophotography. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: AQUATIC ECOSYSTEMS, AQUATIC ECOSYSTEMS, Academics & scientific researchers, Arctic Landscape Conservation Cooperative data.gov, BIOSPHERE, All tags... BIOSPHERE, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, Data, EARTH SCIENCE, EARTH SCIENCE, ECOSYSTEM FUNCTIONS, ECOSYSTEM FUNCTIONS, FLUVIAL LANDFORMS, FLUVIAL LANDFORMS, Federal resource managers, GEOGRAPHIC INFORMATION SYSTEMS, GEOGRAPHIC INFORMATION SYSTEMS, LAKE ICE, LAKE ICE, LAKES, LAKES, LAKES, LAKES, LAND MANAGEMENT, LAND MANAGEMENT, LANDSCAPE, LANDSCAPE, LCC Network Science Catalog, PERMAFROST, PERMAFROST, RIVER ICE, RIVER ICE, WATERSHED/DRAINAGE BASINS, WATERSHED/DRAINAGE BASINS, WETLANDS, WETLANDS, completed, environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, inlandWaters, inlandWaters, Fewer tags Lake Ice Regime Classification These data are the result of a geospatial analysis involving multi-year SAR-based lake ice regime classification using sigma-naught backscatter intensity from calibrated space-borne C-band SAR for thousands of lakes in 7 lake districts in Alaska, USA, detailed in Engram et al., (in review). Historically, radar backscatter from space-borne and airborne platforms shows a lower backscatter return from bedfast lake ice and a higher backscatter return from floating ice (where liquid phase water exists under the ice) (Jeffries, Morris, Weeks, & Wakabayashi, 1994; Weeks, 1977). We used a threshold method where the threshold to differentiate floating and bedfast ice regimes was determined for each year from the frequency... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Arctic Landscape Conservation Cooperative data.gov, Data, ECOSYSTEM FUNCTIONS, ECOSYSTEM FUNCTIONS, All tags... Federal resource managers, LAKE ICE, LAKE ICE, LAKE ICE, LAKE ICE, LAKES, LAKES, LAKES, LAKES, LAND USE/LAND COVER CLASSIFICATION, LAND USE/LAND COVER CLASSIFICATION, LCC Network Science Catalog, PERMAFROST, PERMAFROST, RIVER ICE, RIVER ICE, WETLANDS, WETLANDS, completed, environment, environment, imageryBaseMapsEarthCover, imageryBaseMapsEarthCover, inlandWaters, inlandWaters, Fewer tags