المؤلفون: Chatanantavet, P., Lajeunesse, E., Parker, G., Malverti, L., Meunier, P.

المساهمون: Anthony Falls Laboratory, University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, ASU School of Earth and Space Exploration (SESE), Arizona State University [Tempe] (ASU), Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Univ Illinois, Urbana, IL USA, Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Department of Earth Sciences [Cambridge, UK], University of Cambridge [UK] (CAM), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), University of Illinois at Urbana-Champaign [Urbana], University of Illinois System

المصدر: Water Resources Research
Water Resources Research, American Geophysical Union, 2010, 46 (2), pp.W02518. ⟨10.1029/2008WR007208⟩
Water Resources Research, 2010, 46 (2), pp.W02518. ⟨10.1029/2008WR007208⟩
Water Resources Research, American Geophysical Union, 2010, 46, pp.W02518. ⟨10.1029/2008WR007208⟩

مصطلحات موضوعية: monotonic pattern of size reduction in the downstream direction. Both abrasion and selective sorting may play important roles in generating downstream fining. The objective of this study is to develop a physically based model of downstream fining in bedrock streams with lateral input based on both processes. A surface‐based gravel transport relation for the size mixture is employed to account for the effect of selective sorting (differential transport). While the model produces silt and sand by abrasion, selective sorting by differential transport can play a role in downstream fining only in cases of streams with relatively fine gravel sizes and lower slopes. The results also indicate that abrasion (including fracturing) and selective sorting can be equally important for downstream fining in bedrock rivers. The results also suggest that future work should explicitly consider fracturing (comminution) separately from abrasion (wear) rather than lumping them in a Sternberg‐type coefficient, it is also assumed to loosely capture particle fracturing via a lumped abrasion coefficient embodied in Sternberg's law. The model is here tested against field data from Vieux Habitants River in Guadeloupe Island, [SDU]Sciences of the Universe [physics], [SDE.MCG]Environmental Sciences/Global Changes, Bed load particles in bedrock streams receiving lateral input from hillslopes may or may not show a clear, in general, which is located in the Caribbean Sea. The river shows clear downstream fining, [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology, and this pattern is captured reasonably well by the model. The model results indicate that abrasion (including fracturing) is solely responsible for the downstream fining pattern for most of the study reach of the Vieux Habitants River. Sensitivity analysis of the model has also been performed. The model results suggest that

URL الوصول: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::896cb73394ea031ea7ba3c2c6f7ffc06
https://hal-insu.archives-ouvertes.fr/insu-01288720

المؤلفون: Devauchelle, O, Malverti, L, Lajeunesse, É, Josserand, Christophe, Lagrée, Pierre-Yves, METIVIER, F

المساهمون: Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), Institut Jean le Rond d'Alembert (DALEMBERT), Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)

المصدر: Journal of Geophysical Research: Earth Surface
Journal of Geophysical Research: Earth Surface, American Geophysical Union/Wiley, 2010, 115 (F2), pp.F02017. ⟨10.1029/2009JF001471⟩
Journal of Geophysical Research: Earth Surface, 2010, 115 (F2), pp.F02017. ⟨10.1029/2009JF001471⟩

مصطلحات موضوعية: Physics::Fluid Dynamics, [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology

URL الوصول: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e771d154f84874bf87f461f2f9e2cd6a
https://hal-univ-paris.archives-ouvertes.fr/hal-01499465/document

المؤلفون: Malverti, L., Eric Lajeunesse, Metivier, E.

المساهمون: Institut de Physique du Globe de Paris (IPGP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), C. M. Dohmen-Janssen and S. J. M. H. Husche

المصدر: 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, 2007, Unknown, Unknown Region. pp.179--184
ResearcherID

مصطلحات موضوعية: River, 010504 meteorology & atmospheric sciences, [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology, 010502 geochemistry & geophysics, 01 natural sciences, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca772410609b3cdf1598a0f33afa8f88
https://hal.archives-ouvertes.fr/hal-01499815

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المؤلفون: Liu, Y., Métivier, F., Gaillardet, J., Ye, B., Meunier, P., Narteau, C., Lajeunesse, E., Han, T., Malverti, L.

المصدر: Solid Earth Discussions; 2011, Vol. 3 Issue 2, p541-589, 49p, 2 Color Photographs, 2 Charts, 11 Graphs

مصطلحات موضوعية: SURVEYS, SEDIMENT transport, CHEMICAL denudation, CHEMICAL weathering, EROSION

مصطلحات جغرافية: TIANSHAN Qu (Urumqi, China), CHINA

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