Skip to main content

Table 11 Main input parameters for the simulations with the urban unit model in October 2013

From: Transforming typical hourly simulation weather data files to represent urban locations by using a 3D urban unit representation with micro-climate simulations

Input parameter October 18, 2013 October 05, 2013 October 12, 2013 Source
Weather forcing Group Group 1 Group 2 Group 3  
Specific humidity 2500 m (750 mbar) gr w/kg dry air 5.3 0.6 0.8 [52]
Prevalent wind direction (N = 0 clockwise) 0 225 200 [53]
Wind speed 10 m ab. gr. m/s 3.0 2.5 2.2 [53]
Roughness length z0 0.1 0.1 0.1 [36]
Mean wall albedo 0.23 0.23 0.23 [49]
Mean roof albedo 0.50 0.50 0.50  
Wall heat transmittance W. m −2 . K −1 1.4 1.4 1.4  
Roof heat transmittance W. m −2 . K −1 0.9 0.9 0.9  
Underground soil temperature (Upper-Middle-Deep layer) K 291.0 291.3 292.5 [52]
293.1 292.8 291.3
294.1 294.0 293.1
Underground soil humidity (Upper-Middle-Deep layer) 33 % 32 % 29 % [52]
34 % 33 % 32 %
34 % 33 % 32 %