Table S1 National Land Cover Data (2001) Major Land-Cover Class Definitions Modified From
Table S1 National Land Cover Data (2001) major land-cover class definitions modified from the US Environmental Protection Agency.
Land-cover class / DescriptionBarren Land (Rock/Sand/Clay) / Barren areas of bedrock, desert pavement, scarps, talus, slides, volcanic material, glacial debris, sand dunes, strip mines, gravel pits and other accumulations of earthen material. Generally, vegetation accounts for less than 15% of total cover.
Coniferous Forest / Areas dominated by trees generally greater than 5 meters tall, and greater than 20% of total vegetation cover. More than 75 percent of the tree species maintain their leaves all year. Canopy is never without green foliage. Dominant species are PiceaglaucaandPiceamariana
Deciduous Forest / Areas dominated by trees generally greater than 5 meters tall, and greater than 20% of total vegetation cover. More than 75 percent of the tree species shed foliage simultaneously in response to seasonal change. Dominant species are Betulaneoalaskana, Populustremuloides, and Populusbalsamifera
Dwarf Scrub / Areas dominated by shrubs less than 20 centimeters tall with shrub canopy typically greater than 20% of total vegetation. This type is often co-associated with grasses, sedges, herbs, and non-vascular vegetation. Species include Betula nana, Salix sp., Dryasintegrifolia, Dryas octopetala, Cassiopetetragona, and Vaccinium sp.
Herbaceous Wetlands / Areas where perennial herbaceous vegetation accounts for greater than 80% of vegetative cover and the soil or substrate is periodically saturated with or covered with water. Species include Carex spp.,Eriophorumvaginatum, Eriophorumangustifolium, andJuncusspp.
Mixed Forest / Areas dominated by trees generally greater than 5 meters tall, and greater than 20% of total vegetation cover. Neither deciduous nor evergreen species are greater than 75 percent of total tree cover.See Deciduous and Coniferous Forest for key species.
Open Water / All areas of open water, generally with less than 25% cover of vegetation or soil.
Shrub Scrub / Areas dominated by shrubs; less than 5 meters tall with shrub canopy typically greater than 20% of total vegetation. This class includes true shrubs, young trees in an early successional stage or trees stunted from environmental conditions. Species include Alnusviridis ssp., Betula nana ssp. Betulaglandulosa, and Salix spp.
Woody Wetlands / Areas where forest or shrubland vegetation accounts for greater than 20 percent of vegetative cover and the soil or substrate is periodically saturated with or covered with water. Tree species is primarily Piceamariana
Table S2 Locations of all the weather stations used in this analysis (in decimal degrees). The network each station belongs to is listed as RAWS (remote automated weather station) or COOP (Cooperative Observer Network).
Site / Latitude / Longitude / NetworkAlcan Hwy MI-1244 / 62.816667 / -141.466667 / RAWS
Angel Creek / 65.020000 / -146.228056 / RAWS
Ben Creek / 65.283333 / -143.066667 / RAWS
Bettles / 66.906198 / -151.538909 / COOP
Birch Creek / 65.584722 / -144.363611 / RAWS
Caribou Peak / 65.189167 / -147.500278 / RAWS
Chicken / 64.095445 / -141.855013 / RAWS
Chisana / 62.133333 / -142.083333 / RAWS
Cottenwood / 65.345833 / -155.936110 / RAWS
Delta Junction / 64.064023 / -145.699473 / COOP
Eagle / 64.776111 / -141.161944 / RAWS
Fairbanks / 64.835957 / -147.734577 / COOP
Flat / 62.822778 / -156.613889 / RAWS
George Creek / 63.837500 / -144.350278 / RAWS
Goodpasture / 64.238056 / -145.266944 / RAWS
Hodzana / 66.741667 / -148.676667 / RAWS
Hogatza River / 66.216667 / -155.666667 / RAWS
Innoko Flats / 63.390000 / -158.816667 / RAWS
Jatahmund Lake / 62.600000 / -142.083333 / RAWS
Kaiyuh / 64.425556 / -158.105833 / RAWS
Kanuti / 66.093333 / -152.170000 / RAWS
Kelly / 67.933333 / -162.300000 / RAWS
Koyukuk / 66.008333 / -157.570000 / RAWS
Lake Minchumina / 63.893333 / -152.310556 / RAWS
Livengood / 65.423611 / -148.721667 / RAWS
McGrath / 62.944168 / -155.581366 / COOP
Northway / 62.966667 / -141.933333 / COOP
Norutak Lake / 65.833333 / -154.333333 / RAWS
Poorman / 64.105000 / -155.558333 / RAWS
Salcha / 64.590000 / -146.140000 / RAWS
Salmon Trout / 66.812500 / -141.620000 / RAWS
Seven Mile / 65.938333 / -149.855000 / RAWS
T Lake / 63.753333 / -143.816667 / RAWS
Tanana / 65.177770 / -152.073628 / COOP
Telida / 63.440000 / -153.356667 / RAWS
Vunzik / 66.798056 / -146.715833 / RAWS