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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...
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TEON uses a “nested” approach to data collection. The smallest unit within TEON is a Station. Stationsinclude discrete sampling locations or units (e.g., plot or transect) where repeated measures of a givenvariable are collected to create a time-series. Data collected at a station may be relevant to localconditions (e.g., soil temperature at a given site) or applicable to a larger area (e.g., streamgage locatedat the lower end of a watershed). A Site is a collection of stations that are typically located within closeproximity to each other. Sites are grouped into Watersheds. Watersheds will encompass many ecotypes and span multiple ecoregions. Watersheds in aggregate form the TEON network.
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ATMOSPHERE, ATMOSPHERE, Academics & scientific researchers, All tags...
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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...
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...
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The Terrestrial Environmental Observation Network (TEON) is an effort to establish a sustainable environmental observing network of northern Alaska. TEON will focus work in watersheds that collectively represent the diversity of landscape settings at the ecoregional scale, take advantage of existing science infrastructure and logistics capacity, and provide opportunities to build on existing long-term data sets. Candidate watersheds for TEON include Agashashok River, Barrow/Meade River, Fish/Judy Creek, Hulahula/Jago River, Kokolik River, Kuparuk River, and Upper Koyukuk River.
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AIR TEMPERATURE, AIR TEMPERATURE, ATMOSPHERE, ATMOSPHERE, Academics & scientific researchers, All tags...
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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...
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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...
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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...
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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...
Lack of complete snow cover for the past 3 winters in southwestern Alaska has forced agencies to postpone conducting moose surveys due to the likelihood of underestimating the population/lack of comparability to previous surveys. Poor snow conditions are known to lower the sightability of moose, yet, for most regions of Alaska, the variation in moose sightability during suboptimal conditions has not yet been quantified. Because scientists are predicting less snowfall in this region over the long term, research was initiated to estimate sightability correction factors (SCFc) to apply to abundance estimates.


map background search result map search result map SNOWDATA GeoTIFF Annual Last Snow Date SNOWDATA GeoTIFF Annual Total Melt Per Day SNOWDATA GeoTIFF Annual Total Precipitation TEON Focal Watersheds and Observation Sites GIS data SNOWDATA GeoTIFF Annual Snow Water Equivalent Depth SNOWDATA GeoTIFF Annual Total Liquid Water SNOWDATA GeoTIFF Annual Rain On Snow Event Kuparuk River Watershed map Barrow/Meade River Watershed map TEON Focal Watersheds and Ecoregions map TEON Focal Watersheds and Observation Sites GIS data Kuparuk River Watershed map Barrow/Meade River Watershed map TEON Focal Watersheds and Ecoregions map SNOWDATA GeoTIFF Annual Last Snow Date SNOWDATA GeoTIFF Annual Total Melt Per Day SNOWDATA GeoTIFF Annual Total Precipitation SNOWDATA GeoTIFF Annual Snow Water Equivalent Depth SNOWDATA GeoTIFF Annual Total Liquid Water SNOWDATA GeoTIFF Annual Rain On Snow Event