Drought assessment in Vojvodina (Serbia) using k-means cluster analysis
作者: Leščešen, IgorDolinaj, DraganPantelić, MilanaPopov, Srđan
刊名: Journal of the Geographical Institute "Jovan Cvijic", SASA, 2019, Vol.69 (1), pp.17-27
来源数据库: Geographical Institute ‘’Jovan Cvijic’’, Serbian Academy of Sciences and Arts (SASA)
关键词: SPIDroughtsK-meansRegionalizationVojvodina
原始语种摘要: Droughts are natural hazards that endanger the safety of population, theirproperty and can create serious agricultural and ecological problems overthe affected region. An analysis of the Standardized Precipitation Index(SPI) was performed by using the database of sixty years (1956-2016) of themonthly precipitation for the nine meteorological stations in Vojvodinaregion (Serbia). The SPI has been used for drought determination. Thepresent study investigates the application of k-means clustering methods onthe SPI at the 12-month timescale values to detect distinct droughtclusters. For the purpose of determining the optimal number of clusters, theGap Statistics was used. The results show that the total of four clusters(regions) can be identified in Vojvodina: three stations are listed...
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  • means 手段
  • region 地域
  • analysis 分析
  • clustering 聚类
  • determining 决定的
  • conditions 条件式
  • precipitation 沉淀
  • meteorological 气象的
  • trend 
  • assessment 评价