# Development of a new wavelet-based hybrid model to forecast multi-scalar SPEI drought index (case study: Zanjan city, Iran)

> Research article (Theoretical and Applied Climatology, 2021) · cited 40× · AI/ML

**Wikidata**: [openalex:W3212271892](https://www.wikidata.org/wiki/openalex:W3212271892)  
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