کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6413944 1629979 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reconstruction of soil thermal field from a single depth measurement
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Reconstruction of soil thermal field from a single depth measurement
چکیده انگلیسی

SummarySoil field experiments usually consist of measurements of soil temperatures, heat fluxes and soil water contents. Accurate determination of the soil thermal field, in particular, prediction of the soil surface temperature and the ground heat, contains the signature to the surface energy partitioning, and is therefore critical to the surface energy balance closure problem. In this paper, we develop a numerical procedure to reconstruct the entire soil thermal field from a single depth measurement of either temperature or heat flux. The new algorithm is based on Green's function approach by using the fundamental solution of heat conduction in semi-infinite soils and Duhamel's integral for incorporation of general boundary conditions. It is highlighted that the new approach is capable of accurately reproducing results of some existing numerical approaches, with a more general setting and treatment of the heat diffusion problem, and hence provides a possible unified framework for the estimation of thermal field in soils.

► We developed a numerical procedure for the reconstruction of soil thermal field. ► Only single depth measurement of soil heat flux or temperature is required. ► Heat diffusion is treated analytically with general boundary conditions. ► It provides a possible unified framework to embrace existing numerical methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volumes 464–465, 25 September 2012, Pages 541-549
نویسندگان
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