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Sediment Inclusion Events During Needle Ice Growth: A Laboratory Investigation of the Role of Soil Moisture and Temperature Fluctuations
Author(s) -
Branson J.,
Lawler D. M.,
Glen J. W.
Publication year - 1996
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/95wr03400
Subject(s) - sediment , moisture , water content , environmental science , inclusion (mineral) , front (military) , geology , hydrology (agriculture) , soil science , geotechnical engineering , meteorology , geomorphology , mineralogy , oceanography , physics
This paper reports on a series of laboratory experiments designed to determine the impact of imposed temperature and moisture variations on the inclusion of sediment within growing needle ice. The results demonstrate that needle‐ice growth reflects coupled heat and water fluxes, and thus provide experimental evidence to support theoretical studies by other authors. Sediment is shown to be incorporated into the ice as layers or dispersed concentrations when there is an imbalance of these two fluxes, that is, restrictions on moisture supply and/or over rapid heat loss from the surface, which causes the freezing front to descend into the soil profile.