Filters: Tags: SNOW COVER (X) > Types: Citation (X)

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SNOTEL representativeness in the Rio Grande headwaters on the basis of physiographics and remotely sensed snow cover persistence In this study we identify the physiographic and snowpack conditions currently represented by snowpack telemetry (SNOTEL) stations in the Rio Grande headwaters. Based on 8 years of advanced very high-resolution radiometer data (1995–2002) a snow cover persistence index was derived. Snow cover persistence values at the seven SNOTEL sites ranged from 3·9 to 4·75, with an average 14% greater than the mean persistence of the watershed. Using elevation, western barrier distance, and vegetation density, a 32-node binary classification tree model explained 75% of the variability in average snow cover persistence. Terrain classes encompassing the Lily Pond, Middle Creek, and Slumgullion SNOTEL sites represented 4·1%,... Categories: Publication; Types: Citation, Journal Citation; Tags: Hydrological Processes, SNOTEL, binary regression tree, observation network design, snow cover, All tags... snow water equivalent, Fewer tags Challenges and successes in engaging citizen scientists to observe snow cover: from public engagement to an educational collaboration Abstract (from http://jcom.sissa.it/archive/15/01/JCOM_1501_2016_A01): Whereas the evolution of snow cover across forested mountain watersheds is difficult to predict or model accurately, the presence or absence of snow cover is easily observable and these observations contribute to improved snow models. We engaged citizen scientists to collect observations of the timing of distributed snow disappearance over three snow seasons across the Pacific Northwest, U.S.A. . The primary goal of the project was to build a more spatially robust dataset documenting the influence of forest cover on the timing of snow disappearance, and public outreach was a secondary goal. Each year's effort utilized a different strategy, building... Categories: Publication; Types: Citation; Tags: Citizen science, Data Visualization & Tools, Forests, Landscapes, Northwest CASC, All tags... Other Water, Science Tools For Managers, Science education, Snow Cover, Water, Coasts and Ice, 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 Watershed characteristics for study sites of the Surface Water Trends project, National Water Quality Program This product consists of 29 datasets of tabular data and associated metadata for watershed characteristics of 1,530 study sites of the Surface Water Trends (SWT) project of the U.S. Geological Survey’s (USGS) National Water Quality Program (NWQP). The project is conducting national studies of trends in water quality of streams and rivers for periods ranging from 10 to 40 years, between 1972 and 2012. The data here include both static and time-series characteristics. Static data include primarily physical characteristics which have changed little over this period, such as geology, soils, and topography. Time-series data represent characteristics which may or may not have changed over time, such as land use, agricultural... Categories: Data; Types: Citation; Tags: Atmospheric Deposition, Basin Morphology, Census of Agriculture, Conterminous US, Crop Practices, All tags... Crop Reserve Program, Fertilizer, Forest Canopy, Geographic Information Systems, Geology, Geospatial Analysis, Geospatial Datasets, Housing, Hydrologic Modifications, Hydrology, Imperviousness, Income, Land use, Land use change, Manure, Minerals and Metals, NHDPlus, Net Primary Productivity, Nitrogen application, Normalized Difference Vegetation Index, Oil and Gas, Phenology, Phosphorus application, Point Source, Population change, Precipitation, Protected Areas, Puerto Rico, Regions, Riparian Land Use, Roads, Snow cover, Soils, Temperature, Topography, Trends, USGS Science Data Catalog (SDC), United States, Urbanization, Water Use, Watershed, Watershed boundaries, inlandWaters, Fewer tags Citizen science snow observations at the McCall Outdoor Science School, McCall, ID Results of a citizen science effort in which students and instructors at the McCall Outdoor Science School (MOSS) collected snow observations every 1-4 weeks at their field site within Ponderosa State Park (elevation 1540 m), adjacent to Payette Lake, ID. Students documented snow cover within forested versus open areas at each site via photographs and estimates of the continuity of snow cover. Additionally, snow depth and density were measured via snow pits in the forest and the open. Data were entered via a Google Form, and the results recorded in this table. Site Data Citation for full description of the field campaign and sites. Field photographs are archived along with these data, sorted by site name, with timestamp... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Data Visualization & Tools, Forests, Idaho, Landscapes, McCall, All tags... McCall, Idaho, Northwest CASC, Other Water, Ponderosa State Park, Ponderosa State Park, Science Tools For Managers, Valley County, Valley County, Water, Coasts and Ice, citizen science, citizen science, forest canopy density, meteorological observations, snow cover, snow depth, snow observations, time-lapse photography, Fewer tags Variability and change in terrestrial snow cover: data acquisition and links to the atmosphere Terrestrial snow cover is of significance to global geophysical systems because of its influence on both climatological and hydrological processes. Snow cover acts as a layer which modifies energy exchange between the surface and atmosphere, and as the frozen storage term in the water balance, affecting runoff and streamflow. This review addresses two challenges with regard to snow cover: how to monitor this variable adequately over time, and how to couple trends and variability in snow cover to atmospheric circulation. Developments in remote-sensing technology have provided a range of satellite-derived data products which complement in situ snow measurement procedures. Variability in data spatial resolution and... Categories: Publication; Types: Citation, Journal Citation; Tags: Progress in Physical Geography, atmospheric circulation, remote sensing, snow cover