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sdii从20世纪90年代中期以来明显偏多,并在2016年达到历史最大值,2017年sdii值处于1961—2017年1个标准差范围内,属于正常年份,但是与1961—1990年平均值相比仍具有较高的降水强度,空间分布上2017年sdii与1961—1990年平均值相比大部分区域处于正距平,且在辽宁、内蒙古 ...

2019年6月25日 · The extreme precipitation indices used can be divided into two types (Liu et al., 2013; Wang et al., 2013a,b,c). One is precipitation indices, including PRCPTOT, R95p, R99p, RX1 day, RX5 day and SDII. The other type is the number of days of precipitation, including R10 mm, R20 mm, R25 mm, CDD and CWD

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极端降水强度指数（SDII）以0.13 （mm/d）/10 a的速率显著增加（ p <0.05）；而极端降水日数指数呈不显著增加趋势（ p >0.05），R20和R50的增加速率分别为0.13和0.06 d/10 a。

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