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An Index of Regional Snow-Pack Stability based on Natural Slab Avalanches

  • Arthur Judson (a1) and Rudy M. King (a1)

Abstract

An index of regional snow-pack stability based on occurrences of natural slab avalanches was developed using a statistical distribution and a sequential testing procedure. The study interprets avalanche information on 185 paths in the Colorado Front Range. Results show general agreement with operational hazard estimates; test results have real-time evaluation potential.

Résumé

On a mis au point un indice régional de stabilité du manteau neigeux fondé sur les déclenchements naturels d’avalanches en utilisant leur distribution statistique et une procédure de contrôle séquentiel. L’étude interprète des informations avalanches sur 185 couloirs dans le Colorado Front Range. Les résultats montrent une bonne concordance générale avec les estimations opérationnelles du danger; les résultats des essais ont une capacité d’évaluation en temps réel.

Zusammenfassung

Auf der Grundlage der Abgänge natürlicher Schneebrettlawinen wurde ein Index für die regionale Schneedeckenstabilität hergeleitet; dabei fand ein Verfahren der statistischen Verteilung und der sequentiellen Prüfung Verwendung. Die Studie stützt sich auf Lawineninformationen von 185 Bahnen in der Colorado Front Range. Die Ergebnisse zeigen im allgemeinen Übereinstimmung mit operationellen Gefahrabschätzungen; die Versuchsergebnisse können in Echtzeit gewonnen werden.

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Copyright

References

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An Index of Regional Snow-Pack Stability based on Natural Slab Avalanches

  • Arthur Judson (a1) and Rudy M. King (a1)

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