Changes in Climate Extremes and Catastrophic Events in the Mongolian Plateau from 1951 to 2012

Lei Wang, Zhi-Jun Yao, Liguang Jiang, Rui Wang, Shan-Shan Wu, Zhao-Fei Liu

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    The spatiotemporal changes in 21 indices of extreme temperature and precipitation for the Mongolian Plateau from 1951 to 2012 were investigated on the basis of daily temperature and precipitation data from 70 meteorological stations. Changes in catastrophic events, such as droughts, floods, and snowstorms, were also investigated for the same period. The correlations between catastrophic events and the extreme indices were examined. The results show that the Mongolian Plateau experienced an asymmetric warming trend. Both the cold extremes and warm extremes showed greater warming at night than in the daytime. The spatial changes in significant trends showed a good homogeneity and consistency in Inner Mongolia. Changes in the precipitation extremes were not as obvious as those in the temperature extremes. The spatial distributions in changes of precipitation extremes were complex. Adecreasing trend was shown for total precipitation from west to east as based on the spatial distribution of decadal trends. Drought was the most serious extreme disaster, and prolonged drought for longer than 3 yr occurred about every 7-11 yr. An increasing trend in the disaster area was apparent for flood events from 1951 to 2012. A decreasing trend was observed for the maximum depth of snowfall from 1951 to 2012, with a decreased average maximum depth of 10 mm from the 1990s.
    Original languageEnglish
    JournalJournal of Applied Meteorology and Climatology
    Issue number5
    Pages (from-to)1169-1182
    Number of pages14
    Publication statusPublished - 2016


    • Asia
    • Indices
    • Drought
    • Flood events
    • Snowfall
    • Climate change


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