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Areas affected by three recurrent negative precipitation anomalies (2000, 2003 and 2006)

Figure Created 06 Nov 2012 Published 29 Nov 2012 Last modified 28 Mar 2022
1 min read
(upper) Areas affected by three recurrent negative precipitation anomalies (as indicated in the graph: 2000, 2003 and 2006 during the period 1999–2010 based on the standardised precipitation index, a statistical correlation to recurrent anomalies through principal component analysis (PCA) of time series climatic data). The prevalence of recurrent negative precipitation anomalies in the Mediterranean area is very apparent. Such anomalies can also affect areas with traditionally humid climates. (lower) The effect of these events on ecosystem productivity based on a change index: the steadiness index. This index addresses both the long-term trend and the net change of primary production calculated from satellite time series over the period in which the recurrent negative precipitation anomalies occurred (1999–2010). The areas in red denote regions with a stronger likelihood of decreased productivity relative to the ecosystem capacity.

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MapMetadataChecklist_Map 3 24a_SO005.xls

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information.png Methodology:

A statistical correlation to recurrent drought anomalies through principal component analysis of time series climatic data.

information.png Units:

Qualitative scale: weak - no effect

information.png Rights:
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Commission, Joint Research Centre (JRC).
information.png Owners:
European Commission
Joint Research Centre (JRC)
information.png Figure type:
Map

Additional information

Areas affected by three recurrent negative precipitation anomalies (as indicated in the graph: 2000, 2003 and 2006 during the period 1999-2010 based on the standardised precipitation index, a statistical correlation to recurrent anomalies through principal component analysis (PCA) of time series climatic data). The prevalence of recurrent negative precipitation anomalies in the Mediterranean area is very apparent. Such anomalies can also affect areas with traditionally humid climates.

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