140
Also using:
– Buffer zones (such as winter gardens) to harvest passive solar energy and allow
natural ventilation under cold/windy conditions
– External solar shading
6.2.3 UHI Phenomenon in the Urban Area of Modena
and Application of Models to Simulate Mitigation
Measures
Analyses on the UHI phenomenon in the urban area of Modena have been performed with a focus on the summer season. We compared data from stations located
within the urban area and from stations located in the rural area. The findings
showed that minimum temperatures in the urban area were higher than in the rural
one. The differences between urban and rural minimum temperatures were generally larger during spring and summer, when they reached values up to 6 °C. The
highest intensities of urban heat island effect were found around midnight. On the
other hand, the correlation between maximum values of temperature was the opposite: rural temperatures tend to be about 1 °C higher than the urban ones. Relevant
positive trends were present in the 30-year time-series of temperature. Long term
trend of Heating Degree Days (HDD) and Cooling Degree Days (CDD) were also
analysed (Figs. 6.7 and 6.8). These parameters show to what extent the temporal
HDD 1980-2010
HDD- urban
HDD- rural
2900
2700
2500
2300
2100
1900
1700
1500
1 9 8 0
1 9 8 1
1 9 8 2
1 9 8 3
1 9 8 4
1 9 8 5
1 9 8 6
1 9 8 7
1 9 8 8
1 9 8 9
1 9 9 0
1 9 9 1
1 9 9 2
1 9 9 3
1 9 9 4
1 9 9 5
1 9 9 6
1 9 9 7
Year
1 9 9 8
1 9 9 9
2 0 0 0
2 0 0 1
2 0 0 2
2 0 0 3
2 0 0 4
2 0 0 5
2 0 0 6
2 0 0 7
2 0 0 8
2 0 0 9
2 0 1 0
Fig. 6.7 Long term trend of Heating Degree Days (HDD) for the urban and the rural area
S. Zauli Sajani et al.
Also using:
– Buffer zones (such as winter gardens) to harvest passive solar energy and allow
natural ventilation under cold/windy conditions
– External solar shading
6.2.3 UHI Phenomenon in the Urban Area of Modena
and Application of Models to Simulate Mitigation
Measures
Analyses on the UHI phenomenon in the urban area of Modena have been performed with a focus on the summer season. We compared data from stations located
within the urban area and from stations located in the rural area. The findings
showed that minimum temperatures in the urban area were higher than in the rural
one. The differences between urban and rural minimum temperatures were generally larger during spring and summer, when they reached values up to 6 °C. The
highest intensities of urban heat island effect were found around midnight. On the
other hand, the correlation between maximum values of temperature was the opposite: rural temperatures tend to be about 1 °C higher than the urban ones. Relevant
positive trends were present in the 30-year time-series of temperature. Long term
trend of Heating Degree Days (HDD) and Cooling Degree Days (CDD) were also
analysed (Figs. 6.7 and 6.8). These parameters show to what extent the temporal
HDD 1980-2010
HDD- urban
HDD- rural
2900
2700
2500
2300
2100
1900
1700
1500
1 9 8 0
1 9 8 1
1 9 8 2
1 9 8 3
1 9 8 4
1 9 8 5
1 9 8 6
1 9 8 7
1 9 8 8
1 9 8 9
1 9 9 0
1 9 9 1
1 9 9 2
1 9 9 3
1 9 9 4
1 9 9 5
1 9 9 6
1 9 9 7
Year
1 9 9 8
1 9 9 9
2 0 0 0
2 0 0 1
2 0 0 2
2 0 0 3
2 0 0 4
2 0 0 5
2 0 0 6
2 0 0 7
2 0 0 8
2 0 0 9
2 0 1 0
Fig. 6.7 Long term trend of Heating Degree Days (HDD) for the urban and the rural area
S. Zauli Sajani et al.