Spatiotemporal characteristics of drought in Shandong Province based on NEX-GDDP downscaling data
Zhang Yansong
Cao Xingxing
Du Wenzhou
Wang Luyao
Zhang Jibin
Abstract：To elucidate the spatiotemporal characteristics of drought and propose corresponding emergency countermeasures,this study focuses on Shandong Province.Utilizing high-resolution NEX-GDDP downscaled data and historical observations,the spatial and temporal distribution characteristics of typical drought disasters(March to October)under RCP4.5 and RCP8.5 scenarios for 2020-2029 and 2030-2039 were analyzed.The results indicate that during these periods,drought risk intensity in Shandong exhibits an increasing trend from east to west.Severe droughts are more prevalent in spring and autumn,with moderate and severe drought areas mainly concentrated in the western regions,particularly in Binzhou City,which should be prioritized for risk prevention and control.In the forthcoming period,although fluctuations are observed in the maximum number of consecutive dry days,the overall trend is upward.While light and moderate droughts remain the most common types in Shandong,the increasing frequency of moderate and severe droughts warrants heightened vigilance.Based on these findings,emergency countermeasures for drought disasters are proposed,providing a theoretical basis for future drought resistance activities.
Keywords：NEX-GDDPdroughtspatiotemporal characteristicsemergency countermeasures
Publication Date：2025-03-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 31-37 )