Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande).
National audience The Skeiðarársandur is a large glaciofluvial plain in the south of the Vatnajökull ice cap. In November 1996, a jökulhlaup triggered by a subglacial eruption and produced a catastrophic flood which incised the Skeiðarársandur. Those incised channels trap currently part of the wind...
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ftccsdartic:oai:HAL:hal-00449479v1 2023-05-15T16:38:13+02:00 Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). Roussel, Erwan Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Université Clermont Auvergne (UCA)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS) Maison des Sciences de l'Homme de Clermont-Ferrand (MSH Clermont) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS) 2007 https://hal.archives-ouvertes.fr/hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479/document https://hal.archives-ouvertes.fr/hal-00449479/file/Roussel_Env_peri_2007.pdf fr fre HAL CCSD hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479/document https://hal.archives-ouvertes.fr/hal-00449479/file/Roussel_Env_peri_2007.pdf info:eu-repo/semantics/OpenAccess Environnements périglaciaires https://hal.archives-ouvertes.fr/hal-00449479 Environnements périglaciaires, 2007, 14, pp.41-46 Iceland catabatics winds Islande Deflation rate Vitesse de déflation vents catabatiques Skeiðarársandur [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2007 ftccsdartic 2021-12-19T03:56:27Z National audience The Skeiðarársandur is a large glaciofluvial plain in the south of the Vatnajökull ice cap. In November 1996, a jökulhlaup triggered by a subglacial eruption and produced a catastrophic flood which incised the Skeiðarársandur. Those incised channels trap currently part of the wind transport (essentially the transport by saltation). Measures of the dominant orientations of the vegetation and petrographical analysis of the aeolian deposits provide us the opportunity to geographically delimit the blownout areas. Thus, with the ratio of (1) the loess deposit volume accumulated in the jökulhlaup channels since 1996 and (2) the blownout land surfaces, a minimum deflation rate for the east part of the Skeiðarársandur is calculated. According to our results, the Skeiðarársandur loses 0.05 to 0.1 mm in thickness due to aeolian transport by saltation each year. Article in Journal/Newspaper Ice cap Iceland Islande Vatnajökull Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Skeiðarársandur ENVELOPE(-17.370,-17.370,63.848,63.848) Vatnajökull ENVELOPE(-16.823,-16.823,64.420,64.420) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
French |
topic |
Iceland catabatics winds Islande Deflation rate Vitesse de déflation vents catabatiques Skeiðarársandur [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
Iceland catabatics winds Islande Deflation rate Vitesse de déflation vents catabatiques Skeiðarársandur [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Roussel, Erwan Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
topic_facet |
Iceland catabatics winds Islande Deflation rate Vitesse de déflation vents catabatiques Skeiðarársandur [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
National audience The Skeiðarársandur is a large glaciofluvial plain in the south of the Vatnajökull ice cap. In November 1996, a jökulhlaup triggered by a subglacial eruption and produced a catastrophic flood which incised the Skeiðarársandur. Those incised channels trap currently part of the wind transport (essentially the transport by saltation). Measures of the dominant orientations of the vegetation and petrographical analysis of the aeolian deposits provide us the opportunity to geographically delimit the blownout areas. Thus, with the ratio of (1) the loess deposit volume accumulated in the jökulhlaup channels since 1996 and (2) the blownout land surfaces, a minimum deflation rate for the east part of the Skeiðarársandur is calculated. According to our results, the Skeiðarársandur loses 0.05 to 0.1 mm in thickness due to aeolian transport by saltation each year. |
author2 |
Laboratoire de Géographie Physique et Environnementale (GEOLAB) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Clermont Auvergne 2017-2020 (UCA 2017-2020 )-Université Clermont Auvergne (UCA)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM) Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS) Maison des Sciences de l'Homme de Clermont-Ferrand (MSH Clermont) Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Roussel, Erwan |
author_facet |
Roussel, Erwan |
author_sort |
Roussel, Erwan |
title |
Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
title_short |
Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
title_full |
Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
title_fullStr |
Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
title_full_unstemmed |
Essai de quantification de la déflation en milieu subpolaire, (Skeiðarársandur, Islande). |
title_sort |
essai de quantification de la déflation en milieu subpolaire, (skeiðarársandur, islande). |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479/document https://hal.archives-ouvertes.fr/hal-00449479/file/Roussel_Env_peri_2007.pdf |
long_lat |
ENVELOPE(-17.370,-17.370,63.848,63.848) ENVELOPE(-16.823,-16.823,64.420,64.420) |
geographic |
Skeiðarársandur Vatnajökull |
geographic_facet |
Skeiðarársandur Vatnajökull |
genre |
Ice cap Iceland Islande Vatnajökull |
genre_facet |
Ice cap Iceland Islande Vatnajökull |
op_source |
Environnements périglaciaires https://hal.archives-ouvertes.fr/hal-00449479 Environnements périglaciaires, 2007, 14, pp.41-46 |
op_relation |
hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479 https://hal.archives-ouvertes.fr/hal-00449479/document https://hal.archives-ouvertes.fr/hal-00449479/file/Roussel_Env_peri_2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766028501120450560 |