Progress of the Study of Extreme Weather and Climate Events at the Beginning of the Twenty First Century
More and more researches pay attention to extreme events because of their destructive impacts. Both observing and modeling studies found that extreme temperature and precipitation had significant changes. Further more, there may be more severe extreme events in the future with global warming. Of course, there are still many uncertainties contained in these results. Two main factors contribute to these uncertaintiesne. One is associated with models. There are usually great difference of outputs between different models; the other is the possible difference resulted from the period of different length analyzed. From the definition of extreme events, progresses a-bout the study of extreme events in the last few years are described in detail first for both observing and modeling studies. Then the main progresses are listed, and some problems hanging in doubt are summarized.
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