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Scale model simulations of the deposition of loess in Hilly Terrain
Author(s) -
Goossens Dirk
Publication year - 1988
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290130607
Subject(s) - loess , deposition (geology) , geology , silt , terrain , geomorphology , aeolian processes , scale (ratio) , sedimentation , hydrology (agriculture) , geotechnical engineering , physical geography , sediment , geography , cartography
The sedimentation of loess in a 40 km 2 area on the northern border of the Belgian loess belt, is investigated by means of wind tunnel experiments. Loess deposition is simulated on a relief scale model for different wind directions. It appears that simulation with northeast winds produces a loess deposition pattern that coincides closely to the field pattern, which may be an indication that the loess‐bearing winds at the end of the Weichselian came from the northeast. Loess deposition occurs preferably on windward slopes and not on leeward ones. The wind‐shadow concept, which is important in the case of sand deposition, may therefore not necessarily apply to fine materials such as fine silt and clay.