Cold air flow corridor (2022)
View on the mapValley structures, street corridors or open spaces through which cold air flows from the surrounding countryside into the city at night. Buildings in these corridors slow down the cooling. Source: Berlin Climate Analysis 2022.
Kieze compared
Corridor through which cold air flows into the city at night. The values appear side by side without judgement.
Highest values
Lowest values
97 more Kieze with 0%
Source
- Provider
- gdi.berlin.de
- Licence
- dl-de/zero
- Data as of
- June 2024
- Objects
- 489
Calculation
Valley structures, street corridors and open spaces through which cold air flows into the city at night.
- Aggregation
- City block
- Maintenance
- Senate Department for Urban Mobility, Transport, Climate Action and the Environment, Berlin Environmental Atlas (Umweltatlas)
- Update frequency
- irregularly
Not included
- Buildings in the corridors slow down the cooling. The layer shows geometry only, no calculation of losses.
Related layers
Frequently asked questions
PET is a bioclimatic indicator. It states which air temperature in an enclosed room would correspond to the perceived temperature outdoors. Wind, humidity and radiation feed into it. The value is suited to comparing heat stress across urban areas.
The German Weather Service (Deutscher Wetterdienst) counts a day with a maximum temperature of 30 degrees Celsius or more as a hot day. The number of hot days per year in Berlin has risen markedly since the 1990s, as documented in the 1991-2020 climate normal period.
A climate normal period is a 30-year reference period that the World Meteorological Organization uses to make weather averages comparable. For Berlin, we use the current period 1991-2020 as the basis for comparison.
Asphalt and stone store heat and release it again at night. Heavily sealed neighbourhoods cool down less well than neighbourhoods with vegetation or open water. The urban climate analysis treats sealing as one factor among several.