In this study, time between events and amplitude control charts are used to detect changes in the characteristics of drought events. We used non-parametric methodologies that do not require any assumption on the distribution of the phenomenon or on the observed statistics. The results indicate that the proposed methods can be valuable tools for the institutions responsible for planning drought management and mitigation measures.

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Distribution-Free Time Between Events and Amplitude Control Charts for Drought Monitoring

  • Michele Scagliarini

摘要

In this study, time between events and amplitude control charts are used to detect changes in the characteristics of drought events. We used non-parametric methodologies that do not require any assumption on the distribution of the phenomenon or on the observed statistics. The results indicate that the proposed methods can be valuable tools for the institutions responsible for planning drought management and mitigation measures.