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Soil temperature profiles during infiltration and redistribution of cool and warm irrigation water
Author(s) -
Wierenga P. J.,
Hagan R. M.,
Nielsen D. R.
Publication year - 1970
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/wr006i001p00230
Subject(s) - infiltration (hvac) , subsoil , environmental science , irrigation , soil horizon , soil water , soil science , hydrology (agriculture) , field capacity , geology , materials science , agronomy , geotechnical engineering , biology , composite material
Soil temperatures were measured in field profiles irrigated with cool and warm water and also measured in nonirrigated soil. Differences in soil temperature between plots after irrigation with cool (4.1°C) and warm (21.6°C) water, persisted longer at the lower soil depths. The time required after an irrigation for these differences to decline to less than 1°C was 14 hours at the 1‐cm depth, 36 hours at the 10‐cm depth, and 42 hours at the 20‐cm depth. A numerical procedure developed for predicting changes in soil temperature through the soil profile after irrigation with cool and warm water gave good agreement between observed and calculated values in the subsoil but not in the surface soil. During infiltration heat transfer occurred mainly by mass movement, whereas after 10 hours soil heat transfer below 10 cm occurred mainly by conduction.