# Heat Capacity of Drained Peat Soils
## 3 Results
### Heat Capacity Data
#### 3.1.1 Specific Heat of Investigation Organic Soils
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline
**Soil** & & & & & & & & & \\
**Layer** & **Type of Soil** & \(C_{0}\) & \(C_{1}\) & \(C_{thr}\) & \(C_{1 thr}\) & \(p\)**-Value** & \(\mathbf{R^{2}}\) & \(\sigma\) & \(\mathbf{RMSE_{in}}\) & \(\mathbf{RMSE_{ev}}\) \\ \hline P1 & Moorsh & 1.289 & 0.004406 & \(1.835\times 10^{-3}\) & \(1.11\times 10^{-4}\) & \(1.98\times 10^{-11}\) & 0.9943 & 0.00580 & 0.005249 & 0.006977 \\ P2 & Reed & 1.119 & 0.004315 & \(2.574\times 10^{-3}\) & \(1.55\times 10^{-4}\) & \(4.90\times 10^{-10}\) & 0.9885 & 0.00814 & 0.007363 & 0.009829 \\ P3 & Reed & 1.098 & 0.004262 & \(2.491\times 10^{-3}\) & \(1.50\times 10^{-4}\) & \(4.09\times 10^{-10}\) & 0.9889 & 0.00788 & 0.007127 & 0.009532 \\ \hline P4 & Moorsh & 1.219 & 0.004458 & \(1.779\times 10^{-3}\) & \(1.07\times 10^{-4}\) & \(1.35\times 10^{-11}\) & 0.9948 & 0.00563 & 0.005089 & 0.005867 \\ P5 & Sede-Reed & 1.257 & 0.004796 & \(1.948\times 10^{-3}\) & \(1.17\times 10^{-4}\) & \(1.58\times 10^{-11}\) & 0.9946 & 0.00616 & 0.005573 & 0.007028 \\ P6 & Reed & 1.167 & 0.004259 & \(2.176\times 10^{-3}\) & \(1.31\times 10^{-4}\) & \(1.23\times 10^{-10}\) & 0.9915 & 0.00688 & 0.006223 & 0.007779 \\ \hline P7 & Moorsh & 1.160 & 0.004188 & \(1.567\times 10^{-3}\) & \(9.45\times 10^{-5}\) & \(7.56\times 10^{-12}\) & 0.9954 & 0.00495 & 0.004481 & 0.005790 \\ P8 & Alder & 1.259 & 0.004601 & \(2.063\times 10^{-3}\) & \(1.24\times 10^{-4}\) & \(3.83\times 10^{-11}\) & 0.9935 & 0.00653 & 0.005902 & 0.007219 \\ P9 & Alder & 1.309 & 0.004612 & \(2.141\times 10^{-3}\) & \(1.29\times 10^{-4}\) & \(5.22\times 10^{-11}\) & 0.9929 & 0.00677 & 0.006124 & 0.007891 \\ P10 & Alder & 1.328 & 0.004842 & \(1.803\times 10^{-3}\) & \(1.09\times 10^{-4}\) & \(1.45\times 10^{-11}\) & 0.9947 & 0.00570 & 0.005156 & 0.006641 \\ \hline P11 & Moorsh & 1.190 & 0.004315 & \(1.724\times 10^{-3}\) & \(1.04\times 10^{-4}\) & \(1.36\times 10^{-11}\) & 0.9948 & 0.00545 & 0.004931 & 0.005889 \\ P12 & Sede-Moss & 1.218 & 0.004205 & \(1.279\times 10^{-3}\) & \(7.71\times 10^{-5}\) & \(1.18\times 10^{-12}\) & 0.9969 & 0.00405 & 0.003659 & 0.004214 \\ P13 & Sede-Moss & 1.253 & 0.004587 & \(2.472\times 10^{-3}\) & \(1.49\times 10^{-4}\) & \(1.98\times 10^{-10}\) & 0.9906 & 0.00782 & 0.007072 & 0.009171 \\ \hline P14 & Moorsh & 1.209 & 0.003897 & \(2.863\times 10^{-3}\) & \(1.73\times 10^{-4}\) & \(3.31\times 10^{-9}\) & 0.9824 & 0.00906 & 0.008190 & 0.009592 \\ P15 & Moorsh & 1.196 & 0.003981 & \(2.621\times 10^{-3}\) & \(1.58\times 10^{-4}\) & \(1.18\times 10^{-9}\) & 0.9860 & 0.00829 & 0.007497 & 0.009321 \\ P16 & Sede-Reed & 1.279 & 0.004331 & \(2.079\times 10^{-3}\) & \(1.25\times 10^{-4}\) & \(7.04\times 10^{-11}\) & 0.9925 & 0.00657 & 0.005946 & 0.007339 \\ \hline P17 & Moss & 1.043 & 0.003434 & \(3.520\times 10^{-3}\) & \(2.12\times 10^{-4}\) & \(5.84\times 10^{-68}\) & 0.9667 & 0.01113 & 0.010068 & 0.013759 \\ P18 & Moss & 1.037 & 0.003687 & \(3.809\times 10^{-3}\) & \(2.30\times 10^{-4}\) & \(6.25\times 10^{-68}\) & 0.9662 & 0.01205 & 0.010896 & 0.014782 \\ \hline \end{tabular} \(C_{0}\) and \(C_{1}\)—fitting line parameters of the \(c_{p}(T)\) relationship (Equation (1)), \(C_{0 thr}\) and \(C_{1 thr}\)—standard errors of the parameters, \(p\)-value < 0.05 indicates statistical importance of equation, \(\mathbf{R^{2}}\)—coefficient of determination, \(\sigma\)—standard error of residuals, \(\mathbf{RMSE_{in}}\), \(\mathbf{RMSE_{ev}}\)—root mean square error relating to the average error of \(c_{p}\) estimation using line parameters and based on leave-out-one procedure, respectively.  
\end{table} 
Table 2: Descriptive statistics of fitted lines of \(c_{p}(T)\) relationships. Figure 3: Predicted vs. measured specific heat capacity data. The left-hand graph shows comparison between calculated data using a leave-out-one cross-validation scheme (LOOCV) and measured \(c_{p}\) data. The right-hand graph data shows comparison between linear prediction (line) and measured \(c_{p}\) data.