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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 22, No. 9, 2018, pp. 1417-1420
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Bioline Code: ja18237
Full paper language: English
Document type: Research Article
Document available free of charge
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Journal of Applied Sciences and Environmental Management, Vol. 22, No. 9, 2018, pp. 1417-1420
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Prediction of Soil Temperature at Various Depths Using a Mathematical Model
OYEWOLE, JA; OLASUPO, T; AKINPELU, JA & FABORO, EO
Abstract
This study discusses variation of soil temperature with depth using mathematical models at Ataoja
School of Science, Osogbo, Osun State, Nigeria. Average conditions were assumed. The annual soil temperature cycles
were modeled with fairly good accuracy. Differences in measured and predicted soil temperatures were determined at
annual levels at depths 0cm (top soil), 10cm, 30cm and 50cm. For the annual cycle, the absolute errors ranged from
0.5oC to 7.8 oC with an average of 2.7 oC at the soil surface (0cm). At the 10cm depth, the errors ranged from 0.1 oC to
4.5 oC with an average value of 2.0 oC . At the 30cm depth, the absolute errors ranged from 0.05 oC to 2.9 oC with an
average of 1.7 oC. The highest average absolute error was 2.7 oC while the lowest average absolute error was 1.7 oC.
Keywords
Soil temperature; transient heat flow; simulation; homogenous
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© Copyright 2018 - Oyewole et al.
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