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Table 10 Main input parameters for the simulations with the urban unit model in May 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 May 17, 2013 May 10, 2013 May 22, 2013 Source
Weather forcing Group Group 1 Group 2 Group 3  
Specific humidity 2500 m (750 mbar) gr w/kg dry air 8.3 7.2 3.9 [52]
Prevalent wind direction (N = 0 clockwise) 0 110 0 [53]
Wind speed 10 m ab. gr. m/s 1.6 2.8 2.8 [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 292.7 293.2 296.0 [52]
290.3 288.9 291.0
288.0 287.2 288.0
Underground soil humidity (Upper-Middle-Deep layer) 35 % 37 % 33 % [52]
35 % 37 % 34 %
34 % 35 % 34 %