Hot Bozen

Since I study time series analysis, here a little exercise with data from Hydrographisches Amt South Tyrol:

Its getting hotter:
decomposing mean temperature in Bozen 1981-2010, 
the observed data is splitted into a seasonal component and a level

The code for R:

bz<-read.csv("data/bozen.csv.txt", header=FALSE)

bz<-ts(bz[,1], start=c(1981,1), frequency = 12)

plot(decompose(bz))

+2°C is the mean temperature increase since 1971