Patterns of snow avalanche activity during the last century in Chornohora Range (Eastern Carpathians, Ukraine): Tree-ring reconstruction coupled with synoptic conditions analysis

Armelle Decaulne (1) , Ionela-Georgiana Răchită , Dariia Kholiavchuk , Olimpiu Pop , Iulian Horia Holobâcǎ , Oles Ridush , Bogdan Ridush , Csaba Horváth

1 LETG - Nantes - Littoral, Environnement, Télédétection, Géomatique

This contribution presents a first comprehensive study of snow-avalanche activity in three paths of the Chornohora range, located in southwestern Ukraine, based on historical chronicles and dendrochronology. The results are combined with a statistical analysis of meteorological drivers conducive to snow-avalanche release. While the written chronicles last from 1966 to 2015, the dendrological approach offers results back to the end of the 19th century; however, if the information covers a longer time-lapse, it loses accuracy as only the winter scale is documented through the analysis of tree-ring growing patterns. Weather data highlight the synoptic scenarios over some of the avalanche events that have been recognized as major, as the three paths were concerned:

Domaines: Sciences de l'environnement

Armelle Decaulne, Ionela-Georgiana Răchită, Dariia Kholiavchuk, Olimpiu Pop, Iulian Horia Holobâcǎ, et al.. Patterns of snow avalanche activity during the last century in Chornohora Range (Eastern Carpathians, Ukraine): Tree-ring reconstruction coupled with synoptic conditions analysis. CATENA, 2023, 233 (233), pp.107523. ⟨10.1016/j.catena.2023.107523⟩. ⟨hal-04219997⟩