A new measuring technique of soil thermal inertia

Thermal inertia is the function of substance density, heat capacity and heat diffusivity, and is an important parameter for researching the process of surface heat balance using remote sensing technique. In this paper, using soil heat plates, infrared thermometer, data logger and other instruments,...

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Bibliographic Details
Published in:Science China. Technological sciences 2000-12, Vol.43 (S1), p.62-69
Main Authors: Sun, Xiaomin, Zhu, Zhilin, Tang, Xinzhai, Su, Hongbo, Zhang, Renhua
Format: Article
Language:English
Subjects:
Control equipment
Heat balance
Heat flux
Infrared radiation
Mathematical analysis
Measuring instruments
Moisture content
Process parameters
Remote sensing
Soil water
Solar radiation
Specific heat
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Summary:Thermal inertia is the function of substance density, heat capacity and heat diffusivity, and is an important parameter for researching the process of surface heat balance using remote sensing technique. In this paper, using soil heat plates, infrared thermometer, data logger and other instruments, by man-controlled changing the solar radiation status on the soil samples, the authors gave a new method to measure soil thermal inertia. Using the continuously surveying data of soil heat flux and infrared radiation temperature, thermal inertia can be calculated easily. Based on the thermal inertia calculation of three soil samples with different water content, good results were abtained by the authors, so this method is feasible. Meanwhile, this measuring technique is also a new attempt.
ISSN:1006-9321
1674-7321
1862-281X
1869-1900
DOI:10.1007/BF02916580