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    Impact of global warming on the formation of debris flows in an alpine region of southeastern Tibet, The

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    Author
    Cui, Peng
    Jia, Yang
    Liu, Dingzhu
    Date issued
    2019
    Keywords
    mega debris flows
    global warming
    climatic conditions
    alpine region
    
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    URI
    https://hdl.handle.net/11124/173174; http://dx.doi.org/10.25676/11124/173174
    Abstract
    Debris flows are one of the typical mountain hazards in the Qinghai Tibet Plateau, and they are also one of the most active and harmful hazards in the southeast of Tibet. Different from the formation mechanism of debris-flow hazard at low altitude, the debris flows in this alpine region are caused by the coupling of glacier movement, snow melting, and precipitation. To get the meteorological conditions in formation area of debris flows at the time of disaster occurrence, the daily temperature and precipitation in the areas near glacier tongues were obtained from the method of Anulspin and optimized TRMM data to analyze the influence of meteorological conditions on the formation of debris flows, and the ten mega debris flows that occurred after 1980 in Guxiang, Peilong and Tianmo drainage basins in southeastern Tibet were selected as research samples. The results show that the values of climate extremes during the year and the month when most hazards occurred were obviously greater than at other times. In addition, we developed a hazards identification model ... [please see PDF document for the full abstract].
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