Black Swan White Mountain

Everyone knows that tree rings mark annual variations in tree growth. Biomass production is influenced by climatic variability¬† (precipitation,temperature, sunlight) or disease, pests, fire etc. Tree rings can be measured very accurately and used to…

Climate Variability – Weather Stations

Surface weather stations are an important source of climatic information. They provide standardised daily instrumental time-series with records going back decades or even centuries in some cases. This post shows how to retrieve station data…