ETCCDI

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ETCCDI
CLIVAR Zwiers, Hegerl, Karoly, Jones CCl
Klein-Tank , Garanganga, Trewin, Zhang JCOMM
Parker, Kent, Swail, Woodruff
Photo F. Zwiers
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• Workshops
• Brazzaville, Congo (April 2007)
• Joint with WMO CLIMSOFT Training Workshop
• Funding from the UK
• Hanoi (Dec 2007)
• Joint with another WMO CLIMSOFT Training Workshop
• Funding from the UK
• Mexico (Mar 2009)
• Funding from the UK
• West Indian Ocean (planned Sep/Oct 2009)
• Indian Ocean Commission, the French GEF, and the
  French Ministry of Foreign and European Affairs
• WMO/World Bank Africa Workshop (planning stage)
• One of a series of three (data, regional
  modelling, adaptation)

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• Products
• Software (RClimDex, RHtest)
• Collected indices
• Document describing classic inhomogeneity
  examples
• WMO Guidance Document on extremes
• Research
• Some emerging detection results on extremes
• Indices properties (unintended inhomogeneity,
  affect of recording resolution, heat wave
  indices)
• Review paper on indices and reassessment of
  current set of ETCCDI indices
• Assessment of CMIP3 models
• Impact of large scale climate variations on
  extremes
• CMIP5 and beyond
• CMIP5 planning, and analysis (ACC, decadal
  prediction)
• DA on extremes (indices, risk of rare events)
• Processing facility for high frequency output
• Software for large datasets
• Enhancement of RClimDex capabilities

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(No Transcript)
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Estimated relative likelihood of a 20-yr La-Niña
24-hour precipitation event during El-Niño
Increased risk
No change
Zhang et al, 2009, submitted
Decreased risk
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• ETCCDI Issues
• Mandate of ETCCDI for next CCl cycle
• Role of JCOMM
• Link to WCRP Cross Cut on extremes
• Managing expectations
• Small team, relatively focussed, limited capacity
• Detection on extremes remains a challenge

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Photo F.Zwiers

• The End