Normally, I evaluate measured strain time series to calculate a stress range spectra or the damage. But today I evaluated the temperature rise with Julia (https://julialang.org/), because I wanted to know where we are at the moment.
The temperature data used are from the Open Data Server of the German Meteorological Service (DWD, http://opendata.dwd.de/) and plotted with the in Julia integrated Plots package (https://docs.juliaplots.org/stable/). I simply calculate a trend line from 1900 to 1980 as a reference and a second trend line from 1980 to 2022.
According to the averaged temperature data from DWD (http://opendata.dwd.de/climate_environment/CDC/regional_averages_DE/annual/air_temperature_mean/regional_averages_tm_year.txt), the 1.5°C limit has been exceeded 4 years ago and we are already on the path to 2°C. Even the data for the Hamburg area do not look better.
![Average temperature for Hamburg area](https://fatigue.pro/wp-content/uploads/2023/01/Averaged_temperature_HH_animated.png)
It is quite interesting that the crossing point remains quite stable at the year 1980. So the ongoing trend has started around 1980.