Relative contribution of uncertainties to standardized drought index calculation using a linear mixture model

Key Points

• The study highlights how uncertainties significantly affect the accuracy of drought index calculations, impacting resource management.
• Main uncertainty sources were identified and quantified, demonstrating substantial variances in outcomes when applying the linear mixture model.
• Analysis utilized a linear mixture model to explore the contributions of various uncertainties in the standardized drought index.
• Improved understanding of uncertainties may enhance drought assessment models and decision-making processes.