## 3 Results
### Radiation Balance of Urban Surfaces  
On the 7 th July 2018, the components of the net all wave radiation were collected, where \(\mathsf{Q^{*}}=(\mathsf{K\!\! At 10:30 a.m. and 5 p.m. (when both facades had the same solar incidence angle), the east facade had \(\sim\)437 W\(\cdot\)m\({}^{-2}\) and the west facade \(\sim\)973 W\(\cdot\)m\({}^{-2}\). For the north and south facades, Q* values were only collected when the sun was at its maximum elevation (1:40 p.m.). At that time, the south facade had \(\sim\)632 W\(\cdot\)m\({}^{-2}\) and the north facade \(\sim\)559 W\(\cdot\)m\({}^{-2}\). \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Time**} & \multirow{2}{*}{**Direction *} & \multicolumn{4}{c}{**East Facade**} & \multicolumn{4}{c}{**West Facade**} & \multicolumn{4}{c}{**Horizontal Surface**} \\ \cline{3-10}  & & **L** & **K** & **Q * ** & **L** & **K** & **Q * ** & **L** & **K** & **Q * ** \\ \hline \multirow{2}{*}{9 a.m.} & \(\uparrow\) & 565.3 & 70.2 & \multirow{2}{*}{88.4} & 565.3 & 70.2 & \multirow{2}{*}{30.4} & 576.3 & 57.3 & \multirow{2}{*}{136.2} \\  & \(\downarrow\) & 554.3 & 147.6 & & 554.3 & 89.6 & & 543.3 & 160.5 & \\ \hline \multirow{2}{*}{10 a.m.} & \(\uparrow\) & 558.6 & 386.3 & \multirow{2}{*}{454.3} & 560.2 & 96.0 & \multirow{2}{*}{28.4} & 560.2 & 63.8 & \multirow{2}{*}{185.9} \\  & \(\downarrow\) & 536.6 & 818.6 & & 538.2 & 102.5 & & 516.3 & 205.7 & \\ \hline \multirow{2}{*}{11 a.m.} & \(\uparrow\) & 593.0 & 386.3 & \multirow{2}{*}{467.2} & 569.2 & 83.1 & \multirow{2}{*}{17.5} & 593.0 & 50.8 & \multirow{2}{*}{227.3} \\  & \(\downarrow\) & 571.0 & 831.5 & & 558.2 & 89.6 & & 527.0 & 212.1 & \\ \hline \multirow{2}{*}{Noon} & \(\uparrow\) & 611.5 & 315.4 & \multirow{2}{*}{650.6} & 582.0 & 70.2 & \multirow{2}{*}{17.5} & 660.7 & 141.2 & \multirow{2}{*}{826.1} \\  & \(\downarrow\) & 580.2 & 934.8 & & 571.0 & 76.7 & & 550.8 & 857.3 & \\ \hline \multirow{2}{*}{1 p.m.} & \(\uparrow\) & 616.6 & 192.8 & \multirow{2}{*}{825.4} & 574.5 & 57.3 & \multirow{2}{*}{22.0} & 688.3 & 128.3 & \multirow{2}{*}{873.9} \\  & \(\downarrow\) & 693.6 & 941.2 & & 565.4 & 70.2 & & 556.3 & 870.2 & \\ \hline \multirow{2}{*}{2 p.m.} & \(\uparrow\) & 609.0 & 96.0 & 50.4 & 574.2 & 83.1 & \multirow{2}{*}{49.5} & 711.6 & 121.8 & \multirow{2}{*}{876.5} \\  & \(\downarrow\) & 565.0 & 102.5 & & 550.5 & 108.9 & & 557.7 & 844.4 & \\ \hline \multirow{2}{*}{3 p.m.} & \(\uparrow\) & 601.7 & 63.8 & \multirow{2}{*}{63.3} & 588.9 & 173.4 & \multirow{2}{*}{722.6} & 729.9 & 121.8 & \multirow{2}{*}{874.6} \\  & \(\downarrow\) & 557.7 & 83.1 & & 588.9 & 896.0 & & 565.0 & 831.5 & \\ \hline \multirow{2}{*}{4 p.m.} & \(\uparrow\) & 598.0 & 76.7 & \multirow{2}{*}{58.8} & 621.9 & 502.5 & \multirow{2}{*}{488.4} & 708.0 & 96.0 & \multirow{2}{*}{755.8} \\  & \(\downarrow\) & 565.0 & 102.5 & & 610.9 & 979.9 & & & & \\ \hline \multirow{2}{*}{5 p.m.} & \(\uparrow\) & 592.7 & 76.7 & \multirow{2}{*}{68.0} & 625.7 & 463.8 & \multirow{2}{*}{312.3} & 693.4 & 44.4 & \multirow{2}{*}{246.1} \\  & \(\downarrow\) & 550.5 & 102.5 & & 603.7 & 754.1 & & & 550.5 & 147.6 & \\ \hline \multirow{2}{*}{6 p.m.} & \(\uparrow\) & 582.5 & 89.6 & \multirow{2}{*}{45.9} & 593.5 & 63.6 & \multirow{2}{*}{45.8} & 650.2 & 44.4 & \multirow{2}{*}{191.9} \\  & \(\downarrow\) & 549.5 & 102.5 & & 560.5 & 76.7 & & 529.2 & 115.4 & \\ \hline \multirow{2}{*}{7 p.m.} & \(\uparrow\) & 579.0 & 70.2 & \multirow{2}{*}{47.6} & 580.7 & 50.8 & \multirow{2}{*}{44.2} & 613.7 & 44.4 & \multirow{2}{*}{139.6} \\  & \(\downarrow\) & 544.3 & 83.1 & & 549.5 & 63.8 & & 525.8 & 96.0 & 139.6 \\ \hline \hline \end{tabular}  
* \(\uparrow\) and \(\downarrow\) show the direction of the components of the radiation balance: ascending and descending, respectively.  
\end{table} 
Table 4: Components of the radiation balance for the east and west facades and a horizontal surface (W\(\cdot\)m\({}^{-2}\)).