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   Prediction of Soil Temperature at Various Depths Using a Mathematical Model  
   
نویسنده oyewole ja ,olasupo t ,akinpelu ja ,faboro eo
منبع journal of applied sciences and environmental management - 2018 - دوره : 22 - شماره : 9 - صفحه:1417 -1420
چکیده    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 1.7ᵒc.
کلیدواژه Soil temperature ,transient heat flow ,simulation ,homogenous
آدرس bowen university, department of physics and solar energy, Nigeria, bowen university, department of physics and solar energy, Nigeria, bowen university, department of physics and solar energy, Nigeria, bowen university, department of industrial chemistry & chemistry, Nigeria
 
     
   
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