Periglacial Preconditioning of Debris Flows in the Southern Alps, New Zealand

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Focusing on the environmental conditions in debris flow source areas, this thesis systematically examines factors like slope gradient and debris availability that affect the occurrence of debris flows in high-alpine regions. It highlights the inadequacy of current qualitative assessments and emphasizes the need for a more quantitative understanding of these preconditioning controls to improve debris-flow hazard assessments and evaluate the impacts of climate change.