SNOWDATA GeoTIFF Annual Last Snow Date

This dataset includes Last Snow Date(lsdt) for northern Alaska in GeoTiff format, covering the years 1980-2012. Last Snow Date is defined as day of last snow occurrence during the year(day of simulation). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The simulation period runs from 1 September – 31 August. “Day-of-simulation” takes the value of “1” on 1 September, “123” on 1 January, and “365” on 31 August. “Day-of-simulation” files should be used for analysis (trend, mean, etc.).The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years,...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

SNOWDATA GeoTIFF Annual Total Melt Per Day

This dataset includes Total Melt Per Day(smlt) for northern Alaska in GeoTiff format, covering the years 1980-2012. Total Melt Per Day is defined as from the energy balance(m/yr). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These modeling...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

Projected Decadal Averages of Monthly Snow-Day Fraction Across Alaska 771m CMIP5/AR5

These files include downscaled projections of decadal average monthly snow-day fraction ("fs", units = percent probability from 1 – 100) for each month of the decades from 2010-2019 to 2090-2099 at 771 x 771 m spatial resolution. Each file represents a decadal average monthly mean. Output is available for the CCSM4, GFDL-CM3, GISS-E2-R, IPSL-CM5A-LR, and MRI-CGCM3 models and three emissions scenarios (RCP 4.5, RCP 6.0 and RCP 8.5). These snow-day fraction estimates were produced by applying equations relating decadal average monthly temperature to snow-day fraction to downscaled decadal average monthly temperature. Separate equations were used to model the relationship between decadal monthly average temperature...

Tags: Alaska CASC, Other Water, Water, Coasts and Ice, climatologyMeteorology Atmosphere, climatologyMeteorologyAtmosphere, All tags... precipitation, projected-modeled, snow, Fewer tags

Trace elements and common ions in southeastern Idaho snow: regional air pollutant tracers for source area emissions

Snow samples were collected in southeastern Idaho over two winters to assess trace element and common ion concentrations in air pollutant fallout across the region. The objectives were to: (1) develop snow sampling and analysis techniques that produce accurate and ultra-low measurements of a broad suite of fallout elements, (2) identify the spatial and temporal trends of the fallout elements across the region, (3) determine if there are unique combinations of fallout elements that are characteristic to the major source areas in the region (source area profiles), and (4) use pattern recognition and multivariate statistical techniques (principal component analysis and classical least squares regression) to investigate...

Categories: Publication; Types: Citation; Tags: Air pollutants, Snow, Trace elements and common ions

Water year 2004: Western water managers feel the heat

This spring, a rare combination of exceptionally warm temperatures and near-record lack of precipitation in the western United States caused a rapid change in hydrologic conditions and an unexpectedly early onset of spring conditions.With much of the western U.S. already in its fifth year of drought, an above-average western snowpack on 1 March 2004 provided hope for much-needed abundant runoff. Unfortunately snowmelt began far earlier than anticipated, resulting in dramatic declines in seasonal spring-summer streamflow forecasts as the month proceeded, declines more rapid by some measures than ever before in the past 75 years. With reservoirs near historic lows, many water users have been hard pressed to deal with...

Categories: Publication; Types: Citation; Tags: Runoff and streamflow, ice, snow, water cycles

Remotely sensed variables analyzed and reported in the paper titled "Multi-year data from satellite- and ground-based sensors show details and scale matter in assessing climate’s effects on wetland surface water, amphibians, and landscape conditions"

The comma-delimited fields in this dataset provide values for the remotely sensed variables analyzed for landscape blocks described in the paper, "Multi-year data from satellite- and ground-based sensors show details and scale matter in assessing climate’s effects on wetland surface water, amphibians, and landscape conditions," by Sadinski et al. (submitted). The field labeled “BlockSite” links the records in this file with a set of boundaries in a shapefile called “Study_Block_Boundaries.shp” The records represent weekly measurements of normalized difference vegetation index (BlockNDVI) values and total evapotranspiration (BlockETmm), as well as the annual snow-off date (BlockDOYsnowfree) for the study blocks from...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climate, Environment, Evapotranspiration, Hydrology, Minnesota, All tags... Normalized difference vegetation index (NDVI), Remote sensing, Snow, USGS Science Data Catalog (SDC), Vegetation, Wisconsin, Fewer tags

High Resolution Current and Future Climate SnowModel Simulations in the Upper Colorado River Basin

This data release contains SnowModel snow evolution simulation output on a 100-meter (m) geospatial grid for a 311 kilometer (km) × 300 km model domain in Colorado, United States, encompassing the Colorado and Gunnison River Basin headwaters in the Upper Colorado River Basin. Weather Research and Forecasting (WRF) Model convection-permitting and orography-resolving (4-km grid spacing) regional climate simulations provided the atmospheric forcing conditions to drive SnowModel in both a current and future climate scenario. A pair of continuous 13-water-year (2001-13) WRF model simulations was utilized: (1) a current climate control (CTL) simulation forced using ERA-Interim reanalysis, and (2) a future climate simulation...

Tags: Climatology, Colorado, Hydrology, Rocky Mountains, USGS Science Data Catalog (SDC), All tags... Upper Colorado River Basin, climatology, climatologyMeteorologyAtmosphere, hydrology, runoff, snow, snowmelt, snowpack, water budget, water resources, Fewer tags

SNOWDATA GeoTIFF Annual Total Liquid Water

This dataset includes Total Liquid Water(roff) for northern Alaska in GeoTiff format, covering the years 1980-2012. Total Liquid Water is defined as reaching the ground surface - includes snow-melt, rain, canopy unload, glacier melt, etc.(m/yr). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

SNOWDATA GeoTIFF Annual Snow Water Equivalent Depth

This dataset includes Snow Water Equivalent Depth(swed) for northern Alaska in GeoTiff format, covering the years 1980-2012. Snow Water Equivalent Depth is defined as depth on 1 March(m). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These modeling...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

SNOWDATA GeoTIFF Annual Total Precipitation

This dataset includes Total Precipitation(prec) for northern Alaska in GeoTiff format, covering the years 1980-2012. Total Precipitation is defined as (m/yr). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These modeling tools can be thought...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

SNOWDATA GeoTIFF Annual Rain On Snow Event

This dataset includes Rain On Snow Event(rose) for northern Alaska in GeoTiff format, covering the years 1980-2012. Rain On Snow Event is defined as number of days with rain on snow(days). The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.The dataset is delivered in the ZIP archive file format. Each year is output in a separate GeoTiff file, where the year is indicated by the filename.Over the last 20 years, under a variety of NOAA, NSF, and NASA research programs, a snow-evolution modeling system has been developed that includes the MicroMet micrometeorological model, the SnowModel snow-process model, and the SnowAssim data assimilation model. These...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ALBEDO, ALBEDO, Academics & scientific researchers, All tags... Arctic Landscape Conservation Cooperative data.gov, CRYOSPHERE MODELS, CRYOSPHERE MODELS, Data, 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, 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, completed, Fewer tags

Hydroclimatological Data Rescue Project Final Report

The Arctic Landscape Conservation Cooperative (LCC) and the North Slope Science Initiative have both identified the importance of synthesizing and disseminating existing climate and hydrology data as well as improving the design of climate and hydrologic monitoring networks to meet management and research needs. We have partnered with the Arctic LCC to address this issue. During this project we designed a geodatabase called Imiq, inventoried hydrologic, climate, and related datasets, and populated the Imiq database with both data and metadata. Finally, we analyzed some of the spatial characteristics of the existing hydroclimate data and the observational network structure, in an effort to inform the development...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ABLATION, ABLATION, ACTIVE LAYER, ACTIVE LAYER, ALBEDO, All tags... ALBEDO, ATMOSPHERE, ATMOSPHERE, ATMOSPHERIC PRESSURE, ATMOSPHERIC PRESSURE, ATMOSPHERIC RADIATION, ATMOSPHERIC RADIATION, ATMOSPHERIC TEMPERATURE, ATMOSPHERIC TEMPERATURE, ATMOSPHERIC WATER VAPOR, ATMOSPHERIC WATER VAPOR, Academics & scientific researchers, Arctic Landscape Conservation Cooperative data.gov, CLIMATE INDICATORS, CLIMATE INDICATORS, CLOUD CEILING, CLOUD CEILING, CLOUDS, CLOUDS, DATA DELIVERY, DATA DELIVERY, DATA INTEROPERABILITY, DATA INTEROPERABILITY, DATA SEARCH AND RETRIEVAL, DATA SEARCH AND RETRIEVAL, DISCHARGE/FLOW, DISCHARGE/FLOW, EVAPORATION, EVAPORATION, ICE DEPTH/THICKNESS, ICE DEPTH/THICKNESS, INFORMATION MANAGEMENT SERVICES, INFORMATION MANAGEMENT SERVICES, Interested public, LCC Network Science Catalog, PRECIPITATION, PRECIPITATION, RUNOFF, RUNOFF, Report, SEASONALLY FROZEN GROUND, SEASONALLY FROZEN GROUND, SNOW, SNOW, SNOW DEPTH, SNOW DEPTH, SNOW WATER EQUIVALENT, SNOW WATER EQUIVALENT, SNOW/ICE TEMPERATURE, SNOW/ICE TEMPERATURE, SOIL MOISTURE/WATER CONTENT, SOIL MOISTURE/WATER CONTENT, SOIL TEMPERATURE, SOIL TEMPERATURE, SOILS, SOILS, SURFACE RADIATIVE PROPERTIES, SURFACE RADIATIVE PROPERTIES, SURFACE WATER, SURFACE WATER, SURFACE WATER CHEMISTRY, SURFACE WATER CHEMISTRY, SURFACE WINDS, SURFACE WINDS, VISIBILITY, VISIBILITY, VISUALIZATION/IMAGE PROCESSING, VISUALIZATION/IMAGE PROCESSING, WATER PRESSURE, WATER PRESSURE, WATER QUALITY/WATER CHEMISTRY, WATER QUALITY/WATER CHEMISTRY, WEB SERVICES, WEB SERVICES, WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS, WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS, WIND SPEED/WIND DIRECTION, WIND SPEED/WIND DIRECTION, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, inlandWaters, inlandWaters, Fewer tags

Final Report: Climate Change and Peak Flows: Informing Managers About Future Impacts to Streamflow Dynamics and Aquatic Habitat

What will the rivers of the Pacific Northwest look like in the future? Will they be stable or unstable? Will the waters be cold and clear or warm and muddy? Will they have salmon or other species? These questions motivated our two-year study of climate warming effects on headwater streams draining the Cascade Mountains. Using a novel combination of snow, geohydrology, and sediment transport models we assessed the vulnerability of stream channels to changing peak streamflow. Our snow modeling shows that with just a 2°C warming, snowfall shifts to rainfall at all elevations, peak snowpacks occur over two months earlier, and snowpacks are reduced by over half of historical values. Our geohydrology modeling shows that...

Categories: Publication; Types: Citation; Tags: Future, Headwater Streams, Northwest CASC, Rivers, Streams and Lakes, Sediment Transport, All tags... Snow, Water, Water, Coasts and Ice, Fewer tags

Historical simulated snowpack and other hydrometeorology data at 30 m for the Crown of the Continent and vicinity, United States and Canada, water years 1981-2020

This data release contains historical SnowModel (Liston and Elder, 2006) output for the Crown of the Continent and surrounding areas in Montana, USA; and Alberta and British Columbia, Canada from September 1, 1981 through August 31, 2020. Fifteen daily variables were simulated or derived for this release: (1) snow water equivalent (swed), (2) liquid precipitation (rpre), (3) solid precipitation (spre), (4) albedo (albd), (5) glacial ice melt (glmt), (6) total precipitation (prec), (7) runoff (roff), (8) snow covered area (sca), (9) snow density (sden), (10) snowmelt (smlt), (11) snow depth (snod), (12) snow sublimation (ssub), (13) air temperature (tair), (14) wind speed (wspd), and (15) wind direction (wdir). The...

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alberta, British Columbia, Climatology, Crown of the Continent, Glacier National Park, All tags... Idaho, Montana, Northern Rocky Mountains, USGS Science Data Catalog (SDC), Waterton Lakes National Park, climatologyMeteorologyAtmosphere, precipitation (atmospheric), runoff, snow, snow and ice cover, snowmelt, snowpack, Fewer tags

Association between geomorphic attributes of watersheds, water temperature, and salmon spawn timing in Alaskan streams

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, All tags... PRECIPITATION, PRECIPITATION, PRECIPITATION AMOUNT, PRECIPITATION AMOUNT, Publication, SALMONS/TROUTS, SALMONS/TROUTS, SNOW, SNOW, SNOW/ICE, SNOW/ICE, SNOW/ICE CHEMISTRY, SNOW/ICE CHEMISTRY, STREAM, STREAM, State agencies, Western Alaska Landscape Conservation Cooperative data.gov, biota, biota, completed, environment, environment, geoscientificInformation, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags

Snow Water Equivalent

These are Snow Water Equivalent (SWE) SnowPALM model output data for an area in the Valles Caldera, northern New Mexico. These post-fire model output data are intended to accompany a published report (The effects of wildfire on snow water resources estimated from canopy disturbance patterns and meteorological conditions [Moeser, Broxton and Harpold, 2019]). All data are in a gridded format where the lower left hand corner is located at 3979325 north, and 371710 east in Zone 13N with a map datum of NAD83. The grid is comprised of 1000 rows by 1100 columns with a grid cell size of 1m for a total domain size of 1.0km x 1.1km. Data output is on a daily time step and ranges between the 1st of September 1981 (labeled:...

Tags: Valle Grande, NM (GNIS ID: 928834, Valley), fire, model, snow, snowmelt modeling