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Intercomparison of three indices for addressing drought variability in North China Plain during 1962-2012

机译：1962-2012年华北平原应对干旱变化的三个指数的比对

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摘要

SPI, SPEI and PDSI have good performance in detecting drought in NCP, but the latter two are relatively more direct role in displaying wet-dry patterns than the SPI. Transitions between dry and wet spells are essentially caused by precipitation anomalies, whereas temperature increase can accelerate the drying process, resulting in intensified magnitudes of drought characteristics. The spatiotemporal characteristics of drought in NCP are complex and changeable. A more comprehensive index with the consideration of human activity (e.g. irrigation ratio) is expected to display drought better for water resources management and planning.
机译：SPI，SPEI和PDSI在检测NCP中的干旱方面具有良好的性能，但后两者比SPI在显示干湿模式方面相对更直接。干湿法之间的过渡主要是由降水异常引起的，而温度升高会加速干燥过程，导致干旱特征的强度加剧。 NCP干旱的时空特征复杂多变。考虑到人类活动（例如灌溉比率）的更全面的指数有望更好地显示干旱，以利于水资源管理和规划。

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  • 会议地点 Paris(FR)
  • 作者

    HONGJIAN LU; XINGGUO MO; SUXIA LIU;

  • 作者单位

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China,University of Chinese Academy of Sciences, Beijing100049, China;

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China;

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing100101, China;

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