Resources

Potential Evapotranspiration (PET): These data represent decadal mean totals of potential evapotranspiration estimates (mm). The file name specifies the decade the raster represents. For example, a file named pet_mean_mm_decadal_MPI_ECHAM5_A1B_annual_2000-2009.tif represents the decade spanning 2000-2009. The data were generated by using the Hamon equation and output from ECHAM5, a fifth generation general circulation model created by the Max Planck Institute for Meteorology in Hamburg Germany. Data are at 2km x 2km resolution, and all data are stored in geotiffs.

This dataset includes First Snow Date(fsdt) for northern Alaska in GeoTiff format, covering the years 1980-2012. First Snow Date is defined as day of first 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 American Golden-plover is a conspicuous breeding bird in Arctic Alaska with slightly
higher density in the Brooks Range foothills compared to the coastal plain (Johnson et al. 2007).
In general, this species tends to nest in upland dry habitats, quite often near wetland areas
(Johnson and Connors 1996). Like other plovers, American Golden-plovers search for
invertebrate prey visually and forage in a mix of wet to dry tundra during the breeding season.
This species winters primarily in the southern portion of South America (Johnson and Connors

The North Slope Science Initiative (NSSI) identified an updated, consistent and accurate land cover data set as a primary base layer requirement for its long-term science and planning activities on the North Slope. The map described in this document is the outcome of a multi-year project to produce a moderate resolution land cover base layer to meet NSSI requirements. New Landsat Thematic Mapper (TM) 30 meter resolution landcover maps were produced for the far western arctic, and for the area between the National Petroleum Reserve - Alaska (NPRA) and Arctic National Wildlife Refuge.

The Parasitic Jaeger, unlike the two other jaegers (the Long-tailed and Pomarine Jaegers), has a
varied diet and is not closely tied to lemmings as a food source (Wiley and Lee 1999). This
species utilizes both low-lying marshy tundra and drier tussock-heath tundra for nesting sites
(Wiley and Lee 1999). Parastic Jaegers often hunt for fledgling and adult birds and are believed
to be an important nest predator (Wiley and Lee 1999). Like the other jaeger species, Parasitic

Potential Evapotranspiration (PET): These data represent decadal mean totals of potential evapotranspiration estimates (mm). The file name specifies the decade the raster represents. For example, a file named pet_mean_mm_decadal_MPI_ECHAM5_A1B_annual_2000-2009.tif represents the decade spanning 2000-2009. The data were generated by using the Hamon equation and output from ECHAM5, a fifth generation general circulation model created by the Max Planck Institute for Meteorology in Hamburg Germany. Data are at 2km x 2km resolution, and all data are stored in geotiffs.

The Savannah Sparrow has a widespread breeding range across North America from the
southern U.S. to Arctic Alaska. This species will breed in open habitats ranging from meadows,
cultivated fields, grazed pastures, roadsides, coastal grasslands and tundra (Wheelwright and
Rising 2008). On the coastal plain of Arctic Alaska, tundra nesting habitat is often associated
with stream/river drainages, nesting on the ground often hidden under low shrubs (Wheelwright
and Rising 2008). During the breeding season they forage in a wide range of habitats on a variety

The Greater White-fronted Goose, with a nearly circumpolar distribution, has the most expansive
range of any species in its genus. In Alaska, this species breeds in large numbers in both the
Yukon-Kuskokwim Delta and also on the Arctic Coastal Plain, but they will also nest in the
interior. On the coastal plain breeding habitat ranges from lowland wet to upland dry tundra
often near ponds or lakes (Ely and Dzubin 1994). The Greater White-fronted Goose diet is
dominated by vegetative matter, primarily grass and sedge rhizomes, tubers, and berries (Ely and

Ideal observation sites are located near tributary-mainstem confluences and provide frequent,
synchronous measurements of physical, chemical, and biological attributes. This “nested watershed”
design supports characterization of environmental conditions adjacent to the sampling stations, while
instream hydrological measurements will reflect both local conditions and inputs from upstream.
TEON observations sites are stratified by ecoregions, so we can aggregate data sets across the network to
characterize conditions at the ecoregion scale.

The Stilt Sandpiper is an uncommon to common breeding shorebird on the Arctic Coastal Plain
of Alaska that typically nests near the coast from the Canadian border to the Barrow area
(Johnson et al. 2007, Klima and Jehl 2012). Highest known breeding densities occur in Arctic
Canada where they often nest in taiga and boreal habitats

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.

The ShoreZone in the Classroom Curriculum Implementation project built upon the ShoreZone in the Classroom Pilot Networking Trip. Educational Consultant Marie Acemah liaised over email and in-person at the North Slope School District (NSBSD) Curriculum Camp in Barrow to develop Curricular Units that make ShoreZone available as an educational tool in NSBSD classrooms. This project resulted in two Units, specifically: 1) Coastal Ecosystems Unit; and 2) Documentary Filmmaking Summer Intensive Proposal. The ShoreZone tool is now available and accessible throughout the NSBSD district.

This raster, created in 2010, is output from the Geophysical Institute Permafrost Lab (GIPL) model and represents simulated mean annual ground temperature (MAGT) in Celsius, averaged across a decade, at the base of active layer or at the base of the seasonally frozen soil column. The file name specifies the decade the raster represents. For example, a file named MAGT_1980_1989.tif represents the decade spanning 1980-1989.

This dataset includes Snow Up Date(sudt) for northern Alaska in GeoTiff format, covering the years 1980-2012. Snow Up Date is defined as day of the start of the core snow period(day of simulation). The core snow season is defined to be the longest period of continuous snow cover in each year. The dataset was generated by the Arctic LCC SNOWDATA: Snow Datasets for Arctic Terrestrial Applications project.

The Tundra Swan is the more widespread and northerly ranging of the two native swan species
in North America. In Arctic Alaska, they nest in wet to dry tundra habitat types preferring islands
in lakes or ponds, or naturally occurring frost heaves at the intersection of polygon pond rims.
Nesting territories almost always include a large lake that the family will use as a safe haven
from terrestrial predators (Limpert and Earnst 1994). During the breeding season, their diet is

Average historical annual total precipitation, projected total precipitation (inches), and relative change in total precipitation (% change from baseline) for Northern Alaska. GIF formatted animation and PNG images. Maps created using the SNAP 5-GCM composite (AR5-RCP 8.5) and CRU TS3.1.01 datasets.

ShoreZone is a coastal habitat mapping and classification system in which
georeferenced aerial imagery is collected specifically for the interpretation and
integration of geological and biological features of the intertidal zone and nearshore
environment.

More than 35,000 lakes larger than 0.01 km2 were extracted from an airborne interferometric synthetic aperture radar (IfSAR) derived digital surface model acquired between 2002 and 2006 for the Western Arctic Coastal Plain of northern Alaska. The IfSAR derived lake data layer provides an improvement over previously available datasets for the study area since it is more comprehensive and contemporary.

Map of the Hulahula River Area and location of observation sites. This focal watershed provides the greatest opportunity to characterize conditions within and fluxes from the Brooks Range Ecoregion. Though the Foothills region is
extensive, the watersheds narrow as they cross the Coastal Plain in the eastern
part of the North Slope. Inset shows the location of the seven TEON focal watersheds. Image by Arctic LCC staff.

The Red Phalarope commonly breeds on the Arctic Coastal Plain of Alaska, but is more
abundant west of the Colville River primarily near the coast (Johnson et al. 2007). In Alaska, this
species almost exclusively nests in wet/moist polygonal or marshy tundra and are dependent on
aquatic food sources for much of their diet (Tracy et al. 2002). Red Phalaropes are the most
pelagic of the three phalarope species and spend most of their winters in subtropical and tropical

Baseline (1961-1990) average air temperature (degree C) 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.

These raster datasets represent historical stand age. The last four digits of the file name specifies the year represented by the raster. For example a file named Age_years_historical_1990.tif represents the year 1990. Cell values represent the age of vegetation in years since last fire, with zero (0) indicating burned area in that year. Files from years 1860-2006 use a variety of historical datasets for Boreal ALFRESCO model spin up and calibration to most closely match historical wildfire dynamics.

More than 35,000 lakes larger than 0.01 sq. km. were extracted from an airborne interferometric synthetic aperture radar (IfSAR) derived digital surface model acquired between 2002 and 2006 for the Western Arctic Coastal Plain of northern Alaska. The IfSAR derived lake data layer provides an improvement over previously available datasets for the study area since it is more comprehensive and contemporary.

The Greater Scaup is the only diving duck in the genus Aythya that has a circumpolar
distribution. In Alaska this species has its highest nesting densities in the Yukon-Kuskokwim
Delta but they also breed in Arctic Alaska throughout the Brooks Range, foothills and Arctic
Coastal Plain. Its breeding habitat is typically characterized by relatively shallow (1–2 m) lakes
and large ponds with low surrounding vegetation in extensive, largely treeless, wetlands (Kessel
et al. 2002). Greater Scaup have an omnivorous diet but tend to focus on more protein-rich