地表面温度を用いた土壌熱物性値及び地中熱流量の逆推定法の提案 Direct Estimation of Ground Thermometric Parameter and Ground Conductive Heat Flux, from Ground Surface Temperature
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The object of this study is to develop a method for estimating both the ground thermometric parameter (ρ c λ) and ground conductive heat flux (G) simultaneously by using the ground surface temperature (Ts). This method is based on the Fourier series expressions of the result of heat transfer equation. The method is tested by a field-measurement. The following results are obtained: 1) The estimated ρ c λ have a reasonable value. 2) Estimated diurnal variations of G agree very well with that observed. 3) The spatial distribution of ρ c λ is also estimated from the surface temperature distribution obtained by the thermo-graphy.
- PROCEEDINGS OF HYDRAULIC ENGINEERING
PROCEEDINGS OF HYDRAULIC ENGINEERING 41, 1097-1100, 1997
Japan Society of Civil Engineers