Long-term Development of Selected Climate Parameters 2013
The first subsection of the data analysis deals with long-term mean values of climate parameters for the measurement stations under consideration. The purpose is to indicate both local differences in the manifestation of climatic parameters and possible trends in a climate development that has already taken place. Subsequently, model scenarios on possible climate developments until the end of the century are analysed and assessed for three station sites in Berlin using the statistical procedure WettReg.
The 30-year time interval from 1981 to 2010 was selected as a reference period for analysing the actual state in the current long-term mean. Besides an evaluation of the monthly mean values of typical climate parameters, the relative temperature differences of the annual mean values at the different measurement stations are indicated and the historical development of the air temperatures in the Berlin area is illustrated for the different recording periods of the individual stations.
In the second section of the analysis of the measurements, the focus is on weather conditions in summer with possible heat load. Besides the illustration of the temporal development of temperatures in summer, statistical evaluations of the frequencies of summer days and hot days as well as tropical nights are carried out. The evaluations further include typical diurnal variations on summer days, which were also used in connection with the aforementioned ERDF project in order to specify the meteorological initial conditions of the model simulations to be carried out and to be able to perform spot checks of the results of the calculations.