Table 2 Thermal properties of each layer used in this study
From: Permafrost thaw and ground settlement considering long-term climate impact in northern Alaska
Soil layer | Depth bgs m | Soil type | Thermal conductivity | Volumetric heat capacity | Thermal diffusivity | |||
|---|---|---|---|---|---|---|---|---|
kf (*-10 °C) W/m -°C | ku W/m -°C | cvf kJ/m3 -°C | cvu kJ/m3 -°C | αf m2/s × 10− 7 | αu m2/s × 10− 7 | |||
G | 1.5 | GW-GM | 2.15 | 1.49 | 1280.00 | 1804.80 | 13.5 | 6.6 |
T | 1.5 | OL | 1.20 | 0.60 | 1260.00 | 2700.00 | 4.5 | 1.0 |
1 | 4.6 | ML | 2.09 | 1.65 | 3000.10 | 4647.10 | 5.2 | 2.7 |
2 | 6.9 | SM | 2.37 | 1.85 | 2315.97 | 3257.79 | 8.8 | 4.9 |
3 | 8.8 | SM | 2.01 | 1.52 | 2080.83 | 2958.42 | 8.0 | 4.3 |
4 | 19.4 | SM | 1.99 | 1.43 | 2031.53 | 2936.68 | 7.9 | 3.9 |
5 | 19.8 | SM | 2.46 | 1.63 | 2243.67 | 3306.87 | 8.7 | 3.9 |
6 | 29.3 | CL | 1.34 | 1.13 | 2158.20 | 3265.67 | 5.1 | 2.8 |
7 | 33.8 | CL | 1.44 | 1.22 | 2298.60 | 3504.47 | 5.1 | 2.8 |
8 | 40.6 | SC | 2.27 | 1.64 | 2224.81 | 3207.73 | 8.4 | 4.2 |
9 | 45.0 | CH | 1.27 | 1.10 | 2071.58 | 3063.52 | 5.1 | 3.0 |