Zobrazeno 1 - 10
of 139
pro vyhledávání: '"E, Lajeunesse"'
Publikováno v:
Earth Surface Dynamics, Vol 11, Pp 363-381 (2023)
We develop a phenomenological model of suspended sediment transport on the basis of data acquired in the Capesterre river, which drains a small tropical catchment in Guadeloupe. The model correctly represents the concentration of suspended sediment d
Externí odkaz:
https://doaj.org/article/9f9616db30b74dccac6f13edb9793a97
Publikováno v:
Earth Surface Dynamics, Vol 11, Pp 21-32 (2023)
Bedload transport, entrainment of coarse sediment by a river, is inherently a stochastic and intermittent process whose monitoring remains challenging. Here, we propose a new method to characterize bedload transport in the field. Using an uncrewed ae
Externí odkaz:
https://doaj.org/article/27c4d3727f29444e99e7deb569d18818
Publikováno v:
Earth Surface Dynamics, Vol 6, Pp 1011-1021 (2018)
The grain-size distribution of ancient alluvial systems is commonly determined from surface samples of vertically exposed sections of gravel deposits. This method relies on the hypothesis that the grain-size distribution obtained from a vertical
Externí odkaz:
https://doaj.org/article/38b3a003b68e481e8ff6ef319bb7c9b3
Publikováno v:
Earth Surface Dynamics, Vol 6, Pp 389-399 (2018)
We use the erosion–deposition model introduced by Charru et al. (2004) to numerically simulate the evolution of a plume of bed load tracers entrained by a steady flow. In this model, the propagation of the plume results from the stochastic excha
Externí odkaz:
https://doaj.org/article/a17340f653ad4276939f693ac37de378
Publikováno v:
Earth Surface Dynamics, Vol 5, Iss 1, Pp 187-198 (2017)
More than a century of experiments have demonstrated that many features of natural rivers can be reproduced in the laboratory. Here, we revisit some of these experiments to cast their results into the framework of the threshold-channel theory develop
Externí odkaz:
https://doaj.org/article/108573d9cb934e29a41d7bb379642539
Autor:
F. Métivier, O. Devauchelle, H. Chauvet, E. Lajeunesse, P. Meunier, K. Blanckaert, P. Ashmore, Z. Zhang, Y. Fan, Y. Liu, Z. Dong, B. Ye
Publikováno v:
Earth Surface Dynamics, Vol 4, Iss 1, Pp 273-283 (2016)
The Bayanbulak Grassland, Tianshan, P. R. China, is located in an intramontane sedimentary basin where meandering and braided gravel-bed rivers coexist under the same climatic and geological settings. We report and compare measurements of the dischar
Externí odkaz:
https://doaj.org/article/df6196da73324fa0b655674cceadcfb0
Autor:
J. Gaillardet, I. Braud, F. Hankard, S. Anquetin, O. Bour, N. Dorfliger, J.R. de Dreuzy, S. Galle, C. Galy, S. Gogo, L. Gourcy, F. Habets, F. Laggoun, L. Longuevergne, T. Le Borgne, F. Naaim-Bouvet, G. Nord, V. Simonneaux, D. Six, T. Tallec, C. Valentin, G. Abril, P. Allemand, A. Arènes, B. Arfib, L. Arnaud, N. Arnaud, P. Arnaud, S. Audry, V. Bailly Comte, C. Batiot, A. Battais, H. Bellot, E. Bernard, C. Bertrand, H. Bessière, S. Binet, J. Bodin, X. Bodin, L. Boithias, J. Bouchez, B. Boudevillain, I. Bouzou Moussa, F. Branger, J. J. Braun, P. Brunet, B. Caceres, D. Calmels, B. Cappelaere, H. Celle-Jeanton, F. Chabaux, K. Chalikakis, C. Champollion, Y. Copard, C. Cotel, P. Davy, P. Deline, G. Delrieu, J. Demarty, C. Dessert, M. Dumont, C. Emblanch, J. Ezzahar, M. Estèves, V. Favier, M. Faucheux, N. Filizola, P. Flammarion, P. Floury, O. Fovet, M. Fournier, A. J. Francez, L. Gandois, C. Gascuel, E. Gayer, C. Genthon, M. F. Gérard, D. Gilbert, I. Gouttevin, M. Grippa, G. Gruau, A. Jardani, L. Jeanneau, J. L. Join, H. Jourde, F. Karbou, D. Labat, Y. Lagadeuc, E. Lajeunesse, R. Lastennet, W. Lavado, E. Lawin, T. Lebel, C. Le Bouteiller, C. Legout, Y. Lejeune, E. Le Meur, N. Le Moigne, J. Lions, A. Lucas, J. P. Malet, C. Marais-Sicre, J. C. Maréchal, C. Marlin, P. Martin, J. Martins, J. M. Martinez, N. Massei, A. Mauclerc, N. Mazzilli, J. Molénat, P. Moreira-Turcq, E. Mougin, S. Morin, J. Ndam Ngoupayou, G. Panthou, C. Peugeot, G. Picard, M. C. Pierret, G. Porel, A. Probst, J. L. Probst, A. Rabatel, D. Raclot, L. Ravanel, F. Rejiba, P. René, O. Ribolzi, J. Riotte, A. Rivière, H. Robain, L. Ruiz, J. M. Sanchez-Perez, W. Santini, S. Sauvage, P. Schoeneich, J. L. Seidel, M. Sekhar, O. Sengtaheuanghoung, N. Silvera, M. Steinmann, A. Soruco, G. Tallec, E. Thibert, D. Valdes Lao, C. Vincent, D. Viville, P. Wagnon, R. Zitouna
Publikováno v:
Vadose Zone Journal, Vol 17, Iss 1 (2018)
The French critical zone initiative, called OZCAR (Observatoires de la Zone Critique–Application et Recherche or Critical Zone Observatories–Application and Research) is a National Research Infrastructure (RI). OZCAR-RI is a network of instrument
Externí odkaz:
https://doaj.org/article/68fb733b70cb411292f3b15c1d30329a
Autor:
L. Guerit, L. Barrier, C. Narteau, F. Métivier, Y. Liu, E. Lajeunesse, E. Gayer, P. Meunier, L. Malverti, B. Ye
Publikováno v:
Advances in Geosciences, Vol 37, Pp 27-39 (2014)
In gravel-bed rivers, sediments are often sorted into patches of different grain-sizes, but in braided streams, the link between this sorting and the channel morpho-sedimentary elements is still unclear. In this study, the size of the bed sediment in
Externí odkaz:
https://doaj.org/article/ec774782d9f2475c9303ce95adf0192c
Publikováno v:
Advances in Geosciences, Vol 37, Pp 1-6 (2013)
Bedload particles entrained by rivers tends to disperse as they move downstream. In this paper, we use the erosion-deposition model of Charru et al. (2004) to describe the velocity and the spreading of a plume of tracer particles. We restrict our ana
Externí odkaz:
https://doaj.org/article/70050374c8774753ac309ea96763cd68
Autor:
Y. Liu, F. Métivier, J. Gaillardet, B. Ye, P. Meunier, C. Narteau, E. Lajeunesse, T. Han, L. Malverti
Publikováno v:
Solid Earth, Vol 2, Iss 2, Pp 283-301 (2011)
We report measurements performed during two complete flow seasons on the Urumqi River, a proglacial mountain stream in the northeastern flank of the Tianshan, an active mountain range in Central Asia. This survey of flow dynamics and sediment transpo
Externí odkaz:
https://doaj.org/article/e5b8403e181e421db20f7d071fa82a39