Measurements WG Urban Climate
Measurements and model simulations complement each other in the investigation of urban climate issues, as this is the only way to obtain evaluated, transferable statements covering the entire area. From stationary and mobile measurements, in combination with detailed structural information, insights for the further development of model approaches are drawn and implemented.
The continuously supervised urban climate stations (example: Model project Integral Water Management MIW) provide the temporal course at representative points in the city. These measurements are characterized by high-quality sensors. Among other things, infrared cameras are used (Fig. 1), which effectively scan the thermal properties of different surfaces.
Fig.1: Surface temperatures on the Straße des 17. Juni in Berlin, detail from a time series of several days (1 min cycle), recorded with VarioCAM HR from InfraTek. The shading effect of buildings and tall vegetation, as well as the heating of different building materials is visible.
We record the spatial variability of the measured variables in the urban area using our mobile measuring systems (Fig. 2). The high temporal resolution of the measurement (1 Hz) allows the exact spatial assignment of the measurements.
Fig. 2: Mobile measuring systems to record the exposure of city dwellers. The ambient conditions (radiation, air temperature, humidity and wind) are recorded every second and assigned spatially.
Fig. 3: Heat stress of city residents in Dresden-Gorbitz on a midsummer day: "Perceived temperature" UTCI (Universal Thermal Climate Index) from backpack measurements on 07/26/2018 (11:53-12:57). The measurement round started and ended at Merianplatz and was performed clockwise.