. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . f. 30 June 1972 (S view). Concluding Remarks The seasonal snow cover on the Arctic Slope near Prudhoe Bay contains about 10 cm water equivalent. The snow in the Brooks Range is about three times this amount. The snow is subject to drifting from east and west winds; the west winds are more effective than the east winds as snow drifters. Dust is blown onto the snow from the channels of the Sagavanirktok River and, after April, from roads which have traffic. The dust from roads is proportional to the amount of tra
. Ecological investigations of the tundra biome in the Prudhoe Bay region, Alaska . f. 30 June 1972 (S view). Concluding Remarks The seasonal snow cover on the Arctic Slope near Prudhoe Bay contains about 10 cm water equivalent. The snow in the Brooks Range is about three times this amount. The snow is subject to drifting from east and west winds; the west winds are more effective than the east winds as snow drifters. Dust is blown onto the snow from the channels of the Sagavanirktok River and, after April, from roads which have traffic. The dust from roads is proportional to the amount of traffic (see sequential photo- graphs). The riverbed and adjacent dune areas produce much more dust than do the roads. The east winds are more effective than the west winds as dust movers. The first melt action produces ice lenses, layers, and glands in the snow. These are imper- vious to airflow and produce structural and thermal effects that may be significant to ani- mals such as lemmings, which live under the snow. The melt that produces these ice masses may come a month before the temperature of the entire snowpack is raised to the melting point. The thaw period proceeds by rapid melt- ing of the snow from centers of ablation such as
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