ACTION COST-ES0601

Advances in homogenisation methods of climate series: an integrated approach HOME

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Expert meeting in Oslo 25-26 November 2009

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Homogeneity testing of early instrumental series. Methods of testing long-term series from northern Europe in particular. The Report

 

Early instrumental series are the main source for climate information in the 18th and the first part of the 19th century. Combining those series with modern observations are often problematic due to the lack of proper calibration of the instrument, confusion about the units used, generally incomplete metadata, urban heat island effect, changing exposure of the instruments and numerous relocations. Particularly in northern Europe the long sun duration during summer might also create specific problems.
The aim of the meeting should be to discuss robust methods for homogenisation of early instrumental series in northern Europe in particular.