The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses
International audience The EuroDendro project aims to detect the signal of recent snow-avalanche activity within the analyses of tree rings. In mountain areas, even middle mountains, snow avalanches are a common process & pose serious hazards & risks in recently occupied sectors, either for...
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HAL CCSD
2010
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Online Access: | https://hal.science/hal-01131041 https://hal.science/hal-01131041/document https://hal.science/hal-01131041/file/decaulne.pdf https://hal.science/hal-01131041/file/2010%20Decaulne%20et%20al%20EGU2010-4231-1.pdf |
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ftunivrennes2hal:oai:HAL:hal-01131041v1 |
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openpolar |
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Open Polar |
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Archive Ouverte de l'Université Rennes (HAL) |
op_collection_id |
ftunivrennes2hal |
language |
English |
topic |
dendrogeomorphology snow-avalanches avalanches dendrogéomorphologie [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
spellingShingle |
dendrogeomorphology snow-avalanches avalanches dendrogéomorphologie [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SHS.ENVIR]Humanities and Social Sciences/Environmental studies Decaulne, Armelle Eggertsson, Ó. Sæmundsson, Þ. Laute, K. Beylich, A.A. Pop, Olympiu Defive, Emmanuelle Larrue, Sébastien The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
topic_facet |
dendrogeomorphology snow-avalanches avalanches dendrogéomorphologie [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
description |
International audience The EuroDendro project aims to detect the signal of recent snow-avalanche activity within the analyses of tree rings. In mountain areas, even middle mountains, snow avalanches are a common process & pose serious hazards & risks in recently occupied sectors, either for residence or recreation purposes. Where (i) geomorphological evidence of snow-avalanche occurrence are scarce, (ii) historical records are poor & (iii) trees are colonizing part of the slopes, tree-ring analyses appear as a good alternative to reveal the recent snow-avalanche history. The dendromorphological approach consists in a survey of the investigated areas to inventory damages that affect the morphology of the tree: tilting of the trunk, presence of scars on the trunk, topped trees. Such a survey enables mapping the most frequent snow-avalanche paths, helping to: locate the maximum potential damages estimate the runout distances appreciate the lateral dispersion of the events The EuroDendro project is very interested in: (i) broad-leaved trees, which attracted seldom attention in dendrogeomorphology related to snow-avalanche activity: birch (Betula pubescens) in N Iceland birch (Betula pubescens) & alder (Alnus) in W Norway beech (Fagus sylvatica) in NE Cantal-France (ii) coniferous trees in little explored areas where broad-leaved trees are unavailable: spruce (Picea abies) in Central Romania Core extractions in c & d directions, i.e. parallel to the main flux lines, on both the uphill & the downhill sides of the tree Core analyses on a Lintab measurement table, enabling tree-rings counting, location & dating of growth disturbances (narrow & large rings) & reaction wood formation. The EuroDendro project investigates four main areas, some of them in connection with other scientific frameworks. The investigated areas are located in: xx (A) Northern Iceland, in the Dalsmynni valley, the Ljósavatn-skarð pass & the southern Fnjóskadalur valley, (B) Western Norway, at the bottom of ... |
author2 |
Littoral, Environnement, Télédétection, Géomatique (LETG - Nantes) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN) Université de Nantes (UN)-Université de Nantes (UN) Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) |
format |
Conference Object |
author |
Decaulne, Armelle Eggertsson, Ó. Sæmundsson, Þ. Laute, K. Beylich, A.A. Pop, Olympiu Defive, Emmanuelle Larrue, Sébastien |
author_facet |
Decaulne, Armelle Eggertsson, Ó. Sæmundsson, Þ. Laute, K. Beylich, A.A. Pop, Olympiu Defive, Emmanuelle Larrue, Sébastien |
author_sort |
Decaulne, Armelle |
title |
The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
title_short |
The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
title_full |
The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
title_fullStr |
The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
title_full_unstemmed |
The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses |
title_sort |
eurodendro project -snow-avalanche frequency and magnitude in european middle mountain unravelled by dendrogeomorphological analyses |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-01131041 https://hal.science/hal-01131041/document https://hal.science/hal-01131041/file/decaulne.pdf https://hal.science/hal-01131041/file/2010%20Decaulne%20et%20al%20EGU2010-4231-1.pdf |
op_coverage |
Vienne, Austria |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
European Geoscience Union General Assembly https://hal.science/hal-01131041 European Geoscience Union General Assembly, May 2010, Vienne, Austria. 2010 |
op_relation |
hal-01131041 https://hal.science/hal-01131041 https://hal.science/hal-01131041/document https://hal.science/hal-01131041/file/decaulne.pdf https://hal.science/hal-01131041/file/2010%20Decaulne%20et%20al%20EGU2010-4231-1.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1799482475689279488 |
spelling |
ftunivrennes2hal:oai:HAL:hal-01131041v1 2024-05-19T07:42:46+00:00 The EuroDendro project -Snow-avalanche frequency and magnitude in European Middle Mountain unravelled by dendrogeomorphological analyses Decaulne, Armelle Eggertsson, Ó. Sæmundsson, Þ. Laute, K. Beylich, A.A. Pop, Olympiu Defive, Emmanuelle Larrue, Sébastien Littoral, Environnement, Télédétection, Géomatique (LETG - Nantes) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Brest (UBO)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN) Université de Nantes (UN)-Université de Nantes (UN) Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA) Vienne, Austria 2010-05-02 https://hal.science/hal-01131041 https://hal.science/hal-01131041/document https://hal.science/hal-01131041/file/decaulne.pdf https://hal.science/hal-01131041/file/2010%20Decaulne%20et%20al%20EGU2010-4231-1.pdf en eng HAL CCSD hal-01131041 https://hal.science/hal-01131041 https://hal.science/hal-01131041/document https://hal.science/hal-01131041/file/decaulne.pdf https://hal.science/hal-01131041/file/2010%20Decaulne%20et%20al%20EGU2010-4231-1.pdf info:eu-repo/semantics/OpenAccess European Geoscience Union General Assembly https://hal.science/hal-01131041 European Geoscience Union General Assembly, May 2010, Vienne, Austria. 2010 dendrogeomorphology snow-avalanches avalanches dendrogéomorphologie [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SHS.ENVIR]Humanities and Social Sciences/Environmental studies info:eu-repo/semantics/conferenceObject Conference poster 2010 ftunivrennes2hal 2024-04-24T00:52:14Z International audience The EuroDendro project aims to detect the signal of recent snow-avalanche activity within the analyses of tree rings. In mountain areas, even middle mountains, snow avalanches are a common process & pose serious hazards & risks in recently occupied sectors, either for residence or recreation purposes. Where (i) geomorphological evidence of snow-avalanche occurrence are scarce, (ii) historical records are poor & (iii) trees are colonizing part of the slopes, tree-ring analyses appear as a good alternative to reveal the recent snow-avalanche history. The dendromorphological approach consists in a survey of the investigated areas to inventory damages that affect the morphology of the tree: tilting of the trunk, presence of scars on the trunk, topped trees. Such a survey enables mapping the most frequent snow-avalanche paths, helping to: locate the maximum potential damages estimate the runout distances appreciate the lateral dispersion of the events The EuroDendro project is very interested in: (i) broad-leaved trees, which attracted seldom attention in dendrogeomorphology related to snow-avalanche activity: birch (Betula pubescens) in N Iceland birch (Betula pubescens) & alder (Alnus) in W Norway beech (Fagus sylvatica) in NE Cantal-France (ii) coniferous trees in little explored areas where broad-leaved trees are unavailable: spruce (Picea abies) in Central Romania Core extractions in c & d directions, i.e. parallel to the main flux lines, on both the uphill & the downhill sides of the tree Core analyses on a Lintab measurement table, enabling tree-rings counting, location & dating of growth disturbances (narrow & large rings) & reaction wood formation. The EuroDendro project investigates four main areas, some of them in connection with other scientific frameworks. The investigated areas are located in: xx (A) Northern Iceland, in the Dalsmynni valley, the Ljósavatn-skarð pass & the southern Fnjóskadalur valley, (B) Western Norway, at the bottom of ... Conference Object Iceland Archive Ouverte de l'Université Rennes (HAL) |