Climate Change Research ›› 2012, Vol. 8 ›› Issue (2): 90-98.

• Special Section on IPCC Special Report of Managing the Risks of Extreme Events and Disasters to Adva • Previous Articles     Next Articles

Changes in Weather and Climate Extremes

Yali Luo   

  • Received:2012-02-10 Revised:2012-02-20 Online:2012-03-30 Published:2012-03-30
  • Contact: Yali Luo

Abstract: There is evidence from observations gathered since 1950 of changes in some weather and climate extremes. It is likely that anthropogenic influences have led to increase of extreme daily minimum and maximum temperatures on the global scale. It is likely that there has been an anthropogenic influence on increasing extreme coastal high water due to increase in mean sea level. There is medium confidence that anthropogenic influences have contributed to intensification of extreme precipitation on the global scale. The uncertainties in the historical tropical cyclone records, the incomplete understanding of the physical mechanisms linking tropical cyclone metrics to climate change, and the degree of tropical cyclone variability provide only low confidence for the attribution of any detectable changes in tropical cyclone activity to anthropogenic influences. Attribution of single extreme events to anthropogenic climate change is challenging. Confidence in projecting changes in the direction and magnitude of weather and climate extremes depends on many factors, including the type of extreme, the region and season, the amount and quality of observational data, the level of understanding of the underlying processes, and the reliability of their simulation in models.

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