Archive for May, 2009
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 recover information about past climate over thousands of years.
The World Data Center for Paleoclimate (NOAA) maintains a tree ring database. [...]
May 26, 2009
Posted in: Agriculture, Climate 
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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 and extract information about climatic variability using the remarkable statistical computing language R.
The U.S. National Climate Data Center (NCDC) maintain [...]
May 4, 2009
Tags: Add new tag Posted in: Climate No Comments
