By Ming-ko Woo, Ming-ko Woo
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Extra resources for Cold Region Atmospheric and Hydrologic Studies
With the exception of wetlands, infiltration into the frozen organic cover is usually unimpeded since the soil pores are seldom fully ice-filled. The organic soil may become much compacted below the surface layer, however, and this can greatly decrease the porosity to limit percolating into the deeper layers. 4 Organic Terrain Organic soils are ubiquitous in northern North America and in Siberia (Aylesworth and Kettles 2000; Zhulidov et al. 1997). These soils may include peat and living plants such as lichens and mosses.
Photo: M. Giesbrecht) MAGS Hydrologic Process Research 15 advances. For a boreal forest, Faria et al. (2000) obtained a covariance relationship between SWE and snowmelt rate, whereby snowmelt becomes more rapid as the forest snow cover diminishes. This is probably due to decreasing albedo as the snow cover thins and increasing heating of the emerging shrubs which, in turn, hastens the snowmelt (Pomeroy et al. 2006). In the tundra where the snow is unevenly distributed, the snow cover becomes fragmented soon after the commencement of the melt period.
Weight of snow on a 9-m tall black spruce tree as snow accumulated, sublimated, melted and slid off its canopy. Experiment was carried out in a forest in northern Saskatchewan. (Modified after Pomeroy and Gray 1995) Snow redistribution by wind is an important process in the open terrain. Accompanying blowing snow events is the loss to sublimation by the transported snow. However, there are large discrepancies among various blowing snow models concerning the rates of sublimation loss. Essery et al.
Cold Region Atmospheric and Hydrologic Studies by Ming-ko Woo, Ming-ko Woo