Snow cornice and snow avalanche monitoring using automatic time lapse cameras in Tasiapik Valley, Nunavik (Québec) during the winter of 2017–2018
نویسندگان
چکیده
A series of automatic time-lapse cameras installed along the southwestern side Tasiapik Valley, near village Umiujaq, Nunavik (northern Québec) documented several departure modes and types snow involved in avalanches during winter 2017–2018. These included cornice–avalanche dynamics, slab loose avalanches, clean dirty avalanches. At top selected slope, a camera monitored development cornice beginning November 2017, detecting multiple failures over spring. The track deposition area runout paths were from two downslope, revealing concomitance snow–cornice fall avalanche triggering. Snow activity remained relatively infrequent until end May 2018. Spring is characterized by wet carrying debris to foot slope zones located road slope.
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ژورنال
عنوان ژورنال: Arctic science
سال: 2021
ISSN: ['2368-7460']
DOI: https://doi.org/10.1139/as-2020-0013