Geomorphic and dendroecological impacts of slushflows in central Gaspe Peninsula (Quebec, Canada)

Larocque, Sonya J.; Hétu, Bernard; Filion, Louise

doi:10.1111/1468-0459.00154

Cited by 25 publications

(15 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Of this variety of tree-ring responses to the geomorphic event of snow avalanching, the first three by far have been the most widely utilized in creating to-the-year chronologies of avalanching, and seem to be the most accurate (Burrows and Burrow, 1976;Carrara, 1979). Recently, the onset of traumatic resin ducts/canals within annual rings of damaged trees has been used as a new valuable annual dating tool (Larocque et al, 2001;Stoffel et al, 2006;Casteller et al, 2007). This tool can also be an indicator of seasonality that can help distinguish between scars and reaction wood created by avalanching versus other processes such as debris flows .…”

Section: Review Of Methodologies Employed In the Creation Of Avalanchmentioning

confidence: 99%

“…In the United States, such studies have been carried out in the Front Range (Ives et al, 1976;Carrara, 1979;Rayback, 1998) and Sangre de Cristo Range (Bryant et al, 1989) of Colorado; the Grand Teton Range (Patten and Knight, 1994) and Absaroka Mountains of Wyoming (Potter, 1969); the Wasatch Range of Utah (Hebertson and Jenkins, 2003;Jenkins and Hebertson, 2004); the Lewis Range of Glacier National Park, Montana (Butler, 1979;Butler and Malanson, 1985;Reardon et al, 2004;Pederson et al, 2006;Reardon et al, 2008); and the Cascade Range of Washington (Smith, 1973;Cushman, 1981). In Canada, dendrogeomorphology has been successfully employed in the mountains of British Columbia (Schaerer, 1972;Sandford, 1992), in Banff National Park (Frazer, 1985) and the Kananaskis region in Alberta (Niemann, 1982;Johnson et al, 1985;Johnson, 1987), and the mountains of the central Gaspé Peninsula of Québec (Larocque et al, 2001;Boucher et al, 2003;Dubé et al, 2004;Germain, 2005).…”

Section: Review Of Methodologies Employed In the Creation Of Avalanchmentioning

confidence: 99%

See 1 more Smart Citation

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

Butler

Sawyer

2008

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. The application of the principles of dendrogeomorphology for the dating of high-magnitude snow avalanches is well established in the natural hazards literature. A variety of methodologies are employed by different authors, however, and no standardization currently exists for appropriate sample sizes, the issue of "weighting" certain tree-ring responses as more important than others, or the minimum number of responding trees required in order to infer an avalanche event. We review the literature of dendrogeomorphology as it applies to snow avalanches, and examine the questions of sample size, type of ring reactions dated and weighted, and minimum responses. We present tree-ring data from two avalanche paths in the Rocky Mountains of Montana, USA, from trees uprooted by major snow avalanches in the winter of 2002. These data provide distinct chronologies of past avalanche events, and also illustrate how the critical choice of a minimum Index Number can affect the number of avalanche events in a final chronology based on tree-ring analysis.

show abstract

Section: Review Of Methodologies Employed In the Creation Of Avalanchmentioning

confidence: 99%

Section: Review Of Methodologies Employed In the Creation Of Avalanchmentioning

confidence: 99%

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

Butler

Sawyer

2008

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…A few years ago, tree-ring based analysis of snow avalanches has been initiated in the Pyrenees (Muntán et al, 2004(Muntán et al, , 2008 ) and in Patagonia (Mundo et al, 2007;Casteller et al, 2008 5 ). Larocque et al (2001) used impacts scars, TRD and reaction wood to analyze frequency-magnitude relationships of slushflows (i.e. liquefied snow) on the Gaspé Peninsula.…”

Section: What Natural Hazards Processes Are Analyzed With Tree Rings?mentioning

confidence: 99%

Tree-ring analysis in natural hazards research – an overview

Stoffel

Bollschweiler

2008

Nat. Hazards Earth Syst. Sci.

396

207

View full text Add to dashboard Cite

Abstract. The understanding of geomorphic processes and knowledge of past events are important tasks for the assessment of natural hazards. Tree rings have on varied occasions proved to be a reliable tool for the acquisition of data on past events. In this review paper, we provide an overview on the use of tree rings in natural hazards research, starting with a description of the different types of disturbances by geomorphic processes and the resulting growth reactions. Thereafter, a summary is presented on the different methods commonly used for the analysis and interpretation of reactions in affected trees. We illustrate selected results from dendrogeomorphological investigations of geomorphic processes with an emphasis on fluvial (e.g., flooding, debris flows) and mass-movement processes (e.g., landslides, snow avalanche), where lots of data have been generated over the past few decades. We also present results from rockfall and permafrost studies, where data are much scarcer, albeit data from tree-ring studies have proved to be of great value in these fields as well.Most studies using tree rings have focused on alpine environments in Europe and North America, whereas other parts of the world have been widely neglected by dendrogeomorphologists so far. We therefore challenge researchers to focus on other regions with distinct climates as well, to look on less frequently studied processes as well and to broaden and improve approaches and methods commonly used in tree-ring research so as to allow a better understanding of geomorphic processes, natural hazards and risk.

show abstract

“…Plusieurs études visant à préciser la répartition, la fréquence et les impacts écologiques et géomorphologiques des avalanches ont été effectuées à la fois dans les massifs montagneux de la Gaspésie centrale (Girard et Hétu, 1989 ;Hétu et al, 1994 ;Larocque et al, 2001 ;Talbot, 2002 ;Boucher et al, 2003 ;Germain, 2005 ;Royer et Lemieux, 2006 ;Lemieux, 2007) et dans la zone côtière entre Sainte-Anne-des-Monts et GrandeVallée (Hétu, 1986(Hétu, , 1990(Hétu, , 1991(Hétu, , 1995Hétu et Vandelac, 1989 ;Dubé et al, 2004 ;Germain, 2005 ;Germain et al, 2005).…”

Section: Travaux Antérieursunclassified

Les conditions météorologiques propices au déclenchement des avalanches de neige dans les corridors routiers du nord de la Gaspésie, Québec, Canada

Hétu

2010

gpq

View full text Add to dashboard Cite

Le nord de la Gaspésie constitue l’une des principales régions à risque d’avalanche au Québec. Le risque ne concerne pas uniquement les adeptes de la montagne, mais également les véhicules qui circulent sur les routes nationales 132 et 198 entre Sainte-Anne-des-Monts et Grande-Vallée. Chaque hiver, des masses de neige recouvrent partiellement ou complètement la chaussée, interrompant la circulation et causant parfois des accidents. Cet article a pour objectifs de faire connaître les principales zones à risque d’avalanche dans les corridors routiers du nord de la Gaspésie et d’identifier les conditions météorologiques propices au déclenchement des avalanches dans le contexte climatique du nord de la Gaspésie. Trois séries de données ont été analysées, soit les résultats d’un inventaire de l’activité avalancheuse effectué par le Ministère des Transports du Québec entre 1987 et 1993, une série d’événements avalancheux ponctuels ayant causé des accidents routiers, dont trois mortels (1935, 1956 et 1971), pour un total de 21 journées avalancheuses. Les dates d’avalanche ont été confrontées aux données météorologiques fournies par les stations d’Environnement Canada. Il semble, à la lumière des données disponibles, que les versants côtiers du nord de la Gaspésie connaissent deux principaux régimes avalancheux : un régime printanier associé à la fonte, à la pluie et au démantèlement des carapaces de glace qui se forment sur les parois rocheuses durant l’hiver et un régime hivernal modulé par les tempêtes de neige.Northern Gaspésie is one the principal areas of snow avalanche risk in Québec. Snow avalanche hazard represents a treat to back-country recreational activities, but also to the vehicles circulating on national roads 132 and 198 between Sainte-Anne-des-Monts and Grande-Vallée. Each winter, masses of snow cover partially or completely the roadway, stopping circulation and causing accidents sometimes. This paper aims to localize the main avalanche risk zones into Northern Gaspésie transportation corridors and the analysis of the weather situations leading to avalanche activity along transportation roads under the specific climate of Northern Gaspésie. Three sets of data were gathered together, an inventory of avalanche activity realized by the Ministère des Transports du Québec between 1987 and 1993, a series of specific avalanche events having caused road accidents, including three mortals (1935, 1956 and 1971), for a total of 21 avalanche days, and the dates of avalanches were confronted with weather data provided by the stations of Environment Canada. Preliminary results indicate that the coastal slopes of Northern Gaspésie have two major avalanche regimes : a spring regime associated with snowmelt, rain and ice-block fall from rock walls, and a winter regime associated with snowstorms

show abstract

Geomorphic and dendroecological impacts of slushflows in central Gaspe Peninsula (Quebec, Canada)

Cited by 25 publications

References 10 publications

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

Dendrogeomorphology and high-magnitude snow avalanches: a review and case study

Tree-ring analysis in natural hazards research – an overview

Les conditions météorologiques propices au déclenchement des avalanches de neige dans les corridors routiers du nord de la Gaspésie, Québec, Canada

Contact Info

Product

Resources

About