Mass movements and tree rings: A guide to dendrogeomorphic field sampling and dating

Stoffel, Markus; Butler, David; Corona, Christophe

doi:10.1016/j.geomorph.2012.12.017

Cited by 162 publications

(60 citation statements)

References 130 publications

(121 reference statements)

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“…Following the recommendations of Corona et al (2012) and Stoffel et al (2013), at least 100 trees were sampled at each of the five selected paths (Online Resource 2).…”

Section: Dendrogeomorphic Analysis and Avalanche Event Identificationmentioning

confidence: 99%

“…Selection of trees, sampling design, and sample preparation and analysis followed the procedures described in Stoffel and Bollschweiler (2008). Intensities were assigned to growth disturbances in order to emphasize features that are clearly associated with avalanche activity and to discriminate these from disturbances possibly induced by other factors (Corona et al 2012;Stoffel et al 2013). Growth disturbances were classified based on the visual quality of the evidence of reactions within each sample according to the intensity scale presented in Online Resource 3 (Schläppy et al 2013).…”

Section: Dendrogeomorphic Analysis and Avalanche Event Identificationmentioning

confidence: 99%

“…A major limitation of dendrochronology is that it may underestimate years with natural avalanche activity, in extreme cases by up to 60 % (Corona et al 2012;Schläppy et al 2013;Stoffel et al 2013). Consequently, while complementing generally poor time series of snow avalanche activity back in time, reconstructed series will often remain incomplete in such a way that the relevance of avalanche-climate relationships inferred from tree-ring data is unclear and warrants careful examination.…”

Section: Introductionmentioning

confidence: 99%

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Can we infer avalanche–climate relations using tree-ring data? Case studies in the French Alps

et al. 2015

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“…Following the recommendations of Corona et al (2012) and Stoffel et al (2013), at least 100 trees were sampled at each of the five selected paths (Online Resource 2).…”

Section: Dendrogeomorphic Analysis and Avalanche Event Identificationmentioning

confidence: 99%

Section: Dendrogeomorphic Analysis and Avalanche Event Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Can we infer avalanche–climate relations using tree-ring data? Case studies in the French Alps

et al. 2015

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“…It is 255 therefore necessary that there is forest in the vicinity of the avalanche path. Samples from trees are collected and analysed 256 using prevailing dendrogeomorphological methods such as described by Stoffel (2013). Especially, growth-disturbed trees 257 located in the lower track and runout were analysed to find out high-magnitude events reaching the largest distances.…”

Section: Dendrochronology 254mentioning

confidence: 99%

Characterizing major avalanche episodes in space and time in the twentieth and early twenty-first centuries in the Catalan Pyrenees

Oller

Muntán

García-Sellés

et al. 2015

Cold Regions Science and Technology

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8With the aim of better understanding avalanche risk in the Catalan Pyrenees, the present work focuses on the analysis of 9 major (or destructive) avalanches. For such purpose major avalanche cartography was made by an exhaustive 10 photointerpretation of several flights, winter and summer field surveys and inquiries to local population. Major avalanche 11 events were used to quantify the magnitude of the episodes during which they occurred, and a Major Avalanche Activity 12Magnitude Index (MAAMI) was developed. This index is based on the number of major avalanches registered and its 13 estimated frequency in a given time period, hence it quantifies the magnitude of a major avalanche episode or winter. 14 Furthermore, it permits a comparison of the magnitude between major avalanche episodes in a given mountain range, or 15 between mountain ranges, and for a long enough period, it should allow analysis of temporal trends. Major episodes from 16 winter 1995/96 to 2013/14 were reconstructed. Their magnitude, frequency and extent were also assessed. During the last 17 19 winters, the episodes of January 22-23 and February 6-8 in 1996 were those with highest MAAMI values, followed by 18 January 30-31, 2003, January 29, 2006, and January 24-25, 2014. To analyze the whole twentieth century, a simplified 19 MAAMI was defined in order to attain the same purpose with a less complete dataset. With less accuracy, the same 20 parameters were obtained at winter time resolution throughout the twentieth century. Again, 1995/96 winter had the highest 21 MAAMI value followed by 1971/72, 1974/75 and 1937/38 winter seasons. The analysis of the spatial extent of the different 22 episodes allowed refining the demarcation of nivological regions, and improving our knowledge about the atmospheric 23 patterns that cause major episodes and their climatic interpretation. In some cases, the importance of considering a major 24 avalanche episode as the result of a previous preparatory period, followed by a triggering one was revealed. 25 Key words 26Major avalanche, major avalanche episode, Pyrenees, magnitude, frequency, hazard, risk.

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“…Mass movements in the Flysch Carpathians are also one of the most common geomorphic processes (Starkel 1960, Ziętara 1968, Zabuski et al1999, Poprawa & Rączkowski 2000. Landslide areas occurring in the Carpathian Mountains constitute 95% of all such areas in 140 https://journals.agh.edu.pl/geol Wiktorowski D., Krąpiec M., Lutka M. dendrogeomorphological method (Alestalo 1971, Shroder 1978, 1980, Stoffel et al 2013. The trunks of the trees growing on lands susceptible to landslides are often tilted or bent as a result of land mass movements.…”

Section: Introductionmentioning

confidence: 99%

Dendrogeomorphological analysis of landslide activity along the planned S-69 road in the Węgierska Górka municipality (Beskid Śląski Mountains, S Poland)

Wiktorowski

Krąpiec

Lutka

2017

geol

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Our dendrogeomorphological analysis was completed for 4 landslides, situated in the municipality of Węgierska Górka in the Beskid Śląski Mountains in Southern Poland. The local landslides pose a direct threat to the newly designed S-69 expressway running through the north-western part of the municipality. The research material consisted of 127 samples, collected with the use of a Pressler increment borer, from three species of coniferous trees (Norway spruce, Scots pine, and Silver fir). The landslide activity periods were identified on the basis of the splitting of the dendrochronological curves representing the upslope and downslope parts of the tree trunks. The largest number of the studied trees indicated reactions to substrate mass movements in 1964, 1971, 1972, 1984, 1994, 1997, 1998, and 2010. The detailed locations of the sampled trees allowed us to reconstruct the activities of particular landslide sections in time. We identified the fact that parts of the landslides located downslope of the planned road S-69 are more active than parts of the same landslides located above it on the slope. Geological conditions in the studied area favour landslide activity while precipitation is the main triggering factor of landslides.

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Mass movements and tree rings: A guide to dendrogeomorphic field sampling and dating

Cited by 162 publications

References 130 publications

Can we infer avalanche–climate relations using tree-ring data? Case studies in the French Alps

Can we infer avalanche–climate relations using tree-ring data? Case studies in the French Alps

Characterizing major avalanche episodes in space and time in the twentieth and early twenty-first centuries in the Catalan Pyrenees

Dendrogeomorphological analysis of landslide activity along the planned S-69 road in the Węgierska Górka municipality (Beskid Śląski Mountains, S Poland)

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