Comparison of two methods to estimate soil thermal parameters and heat flux
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Soil thermal parameters play an important role in estimating ground heat flux and investigating ground energy balance. In this paper, based on the measured soil temperature data, thermal diffusivity of shallow soil was estimated using the harmonic method and heat conductivity and convection method, and then the heat flux was calculated and compared with that measured by the heat flux plate to verify the applicability of the two methods. T he results showed that (1) the thermal diffusivities estimated by both the harmonic method and conductivity and convection method are reasonable; ( 2) the harmonic method can simulate the soil temperature of vertical profile better than the heat conductivity and convection method; and ( 3) the harmonic method under2 estimates the maximum heat flux during daytime and minimum heat flux at night, whereas the heat conductivity and convection method can perform good simulation of soil heat flux at night.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号