# Optimization of Data-Driven Soil Temperature Forecast--The First Model in Bangladesh
## 5 Results and Discussion
### Forecasting Soil Temperature at 10 cm Depth in Bangladesh
#### 5.1.2 Three-Day Lead-Time Forecast
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline
**Model** & **Time Window Size** & \multicolumn{2}{c}{**One**} & \multicolumn{2}{c}{**Two**} & \multicolumn{2}{c}{**Three**} & \multicolumn{2}{c}{**Four**} & \multicolumn{2}{c}{**Five**} \\ \hline  & **Scenarios** & **RMSE** & **R** & **RMSE** & **R** & **RMSE** & **R** & **RMSE** & **R** & **RMSE** & **R** & **RMSE** & **R** \\ \hline  & MEAN & 1.946 & 0.910 & 1.920 & 0.912 & 1.905 & 0.913 & 1.89 & 0.914 & 1.887 & 0.915 \\ \cline{2-11}  & MEAN-SUN & 1.934 & 0.911 & 1.923 & 0.911 & 1.908 & 0.913 & 1.893 & 0.914 & 1.886 & 0.914 \\ \cline{2-11}  & MEAN-MAX-MIN & 1.885 & 0.915 & 1.872 & 0.916 & 1.866 & 0.916 & 1.851 & 0.917 & 1.849 & 0.918 \\ \cline{2-11}  & MEAN-HMM-RAN & 1.920 & 0.911 & 1.908 & 0.912 & 1.896 & 0.913 & 1.881 & 0.914 & 1.876 & 0.915 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN & 1.893 & 0.914 & 1.874 & 0.916 & 1.869 & 0.916 & 1.856 & 0.917 & 1.853 & 0.917 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-RAIN & 1.886 & 0.915 & 1.873 & 0.916 & 1.868 & 0.916 & 1.859 & 0.916 & 1.853 & 0.917 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM & 1.901 & 0.913 & 1.886 & 0.914 & 1.878 & 0.915 & 1.862 & 0.916 & 1.857 & 0.916 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM-RAIN & 1.897 & 0.913 & 1.886 & 0.914 & 1.877 & 0.915 & 1.864 & 0.916 & 1.858 & 0.916 \\ \hline  & MEAN & 1.939 & 0.910 & 1.893 & 0.914 & 1.864 & 0.917 & 1.843 & 0.918 & 1.829 & 0.920 \\ \cline{2-11}  & MEAN-SUM & 1.902 & 0.914 & 1.864 & 0.917 & 1.841 & 0.919 & 1.820 & 0.920 & 1.808 & 0.922 \\ \cline{2-11}  & MEAN-MAX-MIN & 1.845 & 0.919 & 1.811 & 0.921 & 1.791 & 0.923 & 1.773 & 0.924 & 1.763 & 0.925 \\ \cline{2-11}  & MEAN-HMM-RAIN & 1.867 & 0.916 & 1.830 & 0.919 & 1.810 & 0.921 & 1.794 & 0.922 & 1.785 & 0.923 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN & 1.841 & 0.919 & 1.808 & 0.922 & 1.790 & 0.923 & 1.773 & 0.924 & 1.763 & 0.925 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-RAIN & 1.829 & 0.920 & 1.800 & 0.922 & 1.783 & 0.924 & 1.768 & 0.925 & 1.759 & 0.926 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM & 1.833 & 0.919 & 1.807 & 0.922 & 1.788 & 0.923 & 1.772 & 0.924 & 1.762 & 0.925 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM-RAIN & 1.826 & 0.920 & 1.802 & 0.922 & 1.784 & 0.923 & 1.769 & 0.925 & 1.760 & 0.925 \\ \hline  & MEAN & 1.941 & 0.910 & 1.902 & 0.914 & 1.873 & 0.916 & 1.852 & 0.917 & 1.836 & 0.919 \\ \cline{2-11}  & MEAN-SUM & 1.910 & 0.913 & 1.876 & 0.917 & 1.843 & 0.919 & 1.822 & 0.920 & 1.808 & 0.922 \\ \cline{2-11}  & MEAN-MAX-MIN & 1.858 & 0.917 & 1.815 & 0.921 & 1.800 & 0.922 & 1.781 & 0.923 & 1.773 & 0.924 \\ \cline{2-11}  & MEAN-HMM-RAIN & 1.871 & 0.916 & 1.827 & 0.920 & 1.804 & 0.921 & 1.790 & 0.922 & 1.776 & 0.924 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN & 1.846 & 0.918 & 1.811 & 0.921 & 1.793 & 0.923 & 1.774 & 0.924 & 1.768 & 0.925 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-RAIN & 1.828 & 0.920 & 1.797 & 0.922 & 1.775 & 0.924 & 1.763 & 0.925 & 1.756 & 0.926 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM & 1.838 & 0.919 & 1.806 & 0.922 & 1.790 & 0.923 & 1.771 & 0.925 & 1.765 & 0.925 \\ \cline{2-11}  & MEAN-MAX-MIN-SUN-HUM-RAIN & 1.825 & 0.920 & 1.796 & 0.923 & 1.779 & 0.924 & 1.762 & 0.925 & 1.755 & 0.926 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Average accuracy of ST10 forecast by tree-based models.