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Berlin Environmental Atlas

04.13 Long-term Development of Selected Climate Parameters (Edition 2015)

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Summary of possible climate change effects in Berlin

The analysis of the WETTREG projection up to 2100 for the three Berlin climate stations Dahlem, Tegel and Tempelhof shows that the trend of increasing temperatures and especially of increasing extreme values that could already be observed in the past decades will continue and will even grow stronger in the coming years and decades.

As a consequence, according to the current state of knowledge the human-biometeorological loads for the population will increase. Particularly the investigated parameters hot days and tropical nights represent critical load situations for the human organism. A strong increase in the number of hot days will occur at all sites considered, and only Dahlem shows an advantage with respect to the development of the tropical nights. Here, the manifestation of the tropical nights to be expected up to the end of the 21st century is significantly lower than at the other two sites. This is due to the location of the climate station outside the inner city in the area of single-family homes. Due to the greater greening of the surroundings of the station, more cooling can occur at night than in the more strongly sealed and urban areas of the other two climate stations. The significantly cooler nights in the Dahlem area are also reflected in the projected annual mean temperature for this station, which thus constantly lies approx. half a degree below the temperatures in Tegel and Tempelhof. In view of the health relevance mentioned, attention must also be paid to the increasing load due to heat waves, both in the number of their occurrence and in their more pronounced manifestation.

Although the station was not included in the comparison, it is to be expected on the basis of the evaluations in the chapter "Results of the station evaluations" that the Alexanderplatz site would have significantly exceeded the trend representations of the individual parameters of the Tegel and Tempelhof sites due to its far more urban surroundings compared to Tempelhof and Tegel.

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