Auswirkungen des Klimawandels auf den thermischen Komfort in ...

Impacts of Climate Change on the Thermal Comfort of Office Buildings
the whole period 1961-1990, we estimated the missing values for the station Innere
Stadt and Donaufeld from the measurements at Hohe Warte.
For this, an analyses of the differences of the hourly values within months was
applied. In graph 5 the distribution of the hourly differences between Hohe Warte and
Donaufeld (upper panel) and Innere Stadt (lower panel) for the month January (left)
and July (right) is shown. In January Donaufeld (upper left) is constant 1 degree
warmer than Hohe Warte. Innere Stadt however shows a slight diurnal range.
Arround noon (9 am to 3 pm) Innere Stadt is only half a degree warmer than Hohe
Warte, the rest of the day also 1 degree. In July both stations show a diurnal range in
temperature differences. In Innere Stadt the warming is most pronounced during
night time with temperature 2 degree higher than Hohe Warte. During daytime the
differences decreases and vanish totally during noon. This is in good agreement with
the urban head island effect. In Donaufeld the situation is not so clear. The station is
general half a degree warmer than Hohe Warte and the difference is most
pronounced from 5 to 8 pm. This seems to be related different insolation around 5 pm
(see graph 6) and in general different temperature conversion of the solar radiation in
the surrounding of the weather station and this part of town.
Graph 5: Temperature differences (1/10 degree) between the weather stations” Wien Hohe Warte”
and “Wien Donaufeld” (upper panel) and “Wien Innere Stadt (lower panel) for January (left) and
July (right)
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