Item: APPLYING THE GROM SCORE ON SNOW PROFILES FROM HUMAN-TRIGGERED SLAB AVALANCHES AND FIELD OBSERVATIONS IN VAL D’ARAN, PYRENEES
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Title: APPLYING THE GROM SCORE ON SNOW PROFILES FROM HUMAN-TRIGGERED SLAB AVALANCHES AND FIELD OBSERVATIONS IN VAL D’ARAN, PYRENEES
Proceedings: International Snow Science Workshop 2024, Tromsø, Norway
Authors:
- Jordi Gavaldà [ Centre Lauegi d'Aran. Conselh Generau d'Aran ]
- Montse Bacardit [ Centre Lauegi d'Aran. Conselh Generau d'Aran ]
- Ivan Moner [ Centre Lauegi d'Aran. Conselh Generau d'Aran ]
Date: 2024-09-23
Abstract: Since the start of the Aran Avalanche Warning Service in 2004, efforts have been made to record data on avalanche and snowpack characteristics from reported human-triggered slabs occurred in the valley and nearby. Such dataset is an important part of a larger dataset from the whole Eastern Pyrenees, which has been object of several investigations on the typical characteristics of human-triggered slabs in the Pyrenees and the Pyrenean structural indexes. In the present study, we focus on the subset of data from Aran Valley and nearby valleys to characterize the human-triggered slab avalanche characteristics in the Aran forecasting region, featured by an oceanic snow climate. Finally, we rate the snow pits with the new Grom Score method to assess the stability based on structure, strength, and propagation criteria. Results help us to emphasize the most prone conditions for human-triggering in Aran Valley, but also test the Grom score method for better communication and practical stability assessments.
Object ID: ISSW2024_P3.18.pdf
Language of Article: English
Presenter(s): Jordi Gavaldà
Keywords: Snow stability, avalanche forecasting, avalanche communication, Pyrenees
Page Number(s): 548 - 552
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