| Title | Cold-climate aeolian environments |
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| Author | Wolfe, S A |
| Source | Aeolian geomorphology; Treatise on geomorphology vol. 11, 2020 p. 1-25, https://doi.org/10.1016/B978-0-12-818234-5.00036-5 |
| Image |  |
| Year | 2020 |
| Alt Series | Natural Resources Canada, Contribution Series 20200694 |
| Alt Series | Earth Systems and Environmental Sciences |
| Publisher | Elsevier |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication supercedes Cold-climate aeolian
environments |
| File format | pdf |
| Province | Canada; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut;
Canada |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long WENS | -180.0000 180.0000 90.0000 25.0000 |
| Subjects | surficial geology/geomorphology; environmental geology; Nature and Environment; Science and Technology; climate; cold regions research; permafrost; ground ice; sands; sand wedges; loess; ventifacts;
depositional environment; sediment transport; soil moisture; temperature; pressure; vegetation; grain size distribution; salt; paleoenvironment; Northern Hemisphere; eolian sediments; dune fields; Wind; Climate change; Phanerozoic; Cenozoic;
Quaternary |
| Illustrations | location maps; geoscientific sketch maps; aerial photographs; photographs; tables |
| Program | Climate Change
Geoscience Permafrost |
| Released | 2020 12 23 |
| Abstract | (unpublished)
Cold-climate environments include both periglacial environments where the mean annual air temperature is less than + 3 °C, and seasonally-cold environments where the coldest mean
monthly temperatures are below - 3 °C. In these environments, temperature and moisture conditions significantly affect the efficacy of sediment transport by wind. Specific wind conditions operating in cold-climate environments that promote aeolian
processes include frontal, pressure-gradient, katabatic, and foehn winds, as well as large-scale pressure gradient winds associated with persistent stationary high-pressure cells centered over ice sheets. Sediment source supply is a limiting factor
in present-day cold-climate aeolian environments, particularly within formerly glaciated regions of North America and Europe. In addition, whereas wind speeds may be high, limited sediment availability may inhibit entrainment and transport of
sediment due to surface soil moisture and phase-state conditions, vegetation cover, coarse sediment, organic matter content or soluble salts. Aeolian processes, deposits and features in cold-climate environments include deflation, loess (including
yedoma) and dust, sand dunes and sand sheets, as well as niveo-aeolian processes, sand wedges, ventifacts and oriented lakes. Four major settings where cold-climate aeolian processes occur include cold-polar environments, glacially proximal
environments, cold high-altitude environments, and seasonally-cold environments. In addition, although contemporary cold-climate aeolian environments are largely restricted in extent, even at high latitudes, relict cold-climate aeolian environments
were considerably more extensive during glacial and early Holocene times. |
| Summary | (Plain Language Summary, not published)
This chapter descibes the aeolian process and landforms that develop in cold-climate environments. |
| GEOSCAN ID | 327984 |
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