Table 3. The maximum and mean values of PET and UTCI differences between the ground surface materials

PET (Sept. 3) UTCI (Sept. 3)
% %
Max Mean Max Mean Max Mean Max Mean
Artificial grass-natural grass 4.8 3.3 12.3 8.7 2.9 2.0 8.0 5.7
Artificial grass-clay sand 4.5 2.4 11.6 6.3 2.6 1.3 7.2 3.7
Clay sand-natural grass 2.1 0.9 6.0 2.6 1.6 0.7 5.0 2.0
PET (Sept. 4) UTCI (Sept. 4)
% %
Max Mean Max Mean Max Mean Max Mean
Artificial grass-natural grass 3.3 2.3 8.7 6.2 2.2 1.3 6.3 3.7
Artificial grass-clay sand 3.4 2.0 8.9 5.4 2.0 1.2 5.6 3.4
Clay sand-natural grass 2.1 0.3 6.0 0.8 1.1 0.1 3.3 0.3