Search Results - "Guyot, J.L"

Increase in suspended sediment discharge of the Amazon River assessed by monitoring network and satellite data by Martinez, J.M., Guyot, J.L., Filizola, N., Sondag, F.

“…This study addresses the quantification of the Amazon River sediment budget which has been assessed by looking at data from a suspended sediment discharge…”
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Floodplain hydrology in an Amazon floodplain lake (Lago Grande de Curuaí) by Bonnet, M.P., Barroux, G., Martinez, J.M., Seyler, F., Moreira-Turcq, P., Cochonneau, G., Melack, J.M., Boaventura, G., Maurice-Bourgoin, L., León, J.G., Roux, E., Calmant, S., Kosuth, P., Guyot, J.L., Seyler, P.

“…The floodplains of the Amazon basin influence the hydrology and fluxes of suspended solids and solutes on multiple scales. Our study focused on the floodplain…”
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Spatio‐temporal rainfall variability in the Amazon basin countries (Brazil, Peru, Bolivia, Colombia, and Ecuador) by Espinoza Villar, Jhan Carlo, Ronchail, Josyane, Guyot, Jean Loup, Cochonneau, Gerard, Naziano, Filizola, Lavado, Waldo, De Oliveira, Eurides, Pombosa, Rodrigo, Vauchel, Philippe

“…Rainfall variability in the Amazon basin (AB) is analysed for the 1964–2003 period. It is based on 756 pluviometric stations distributed throughout the AB…”
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Fluxes of dissolved and colloidal organic carbon, along the Purus and Amazonas rivers (Brazil) by Patel, N, Mounier, S, Guyot, J.L, Benamou, C, Benaim, J.Y

“…The first study of the molecular size distribution and fluxes of organic carbon from the Rio Purus to the Amazon River is reported. Organic carbon measurements…”
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Evidence for global runoff increase related to climate warming by Labat, David, Goddéris, Yves, Probst, Jean Luc, Guyot, Jean Loup

“…Ongoing global climatic change initiated by the anthropogenic release of carbon dioxide is a matter of intense debate. We focus both on the impact of these…”
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Clay mineral composition of river sediments in the Amazon Basin by Guyot, J.L., Jouanneau, J.M., Soares, L., Boaventura, G.R., Maillet, N., Lagane, C.

“…Clay minerals are important in evaluating the maturity of suspended sediments, weathering intensity and source area. However, there are processes that can…”
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Future changes in precipitation and impacts on extreme streamflow over Amazonian sub-basins by Guimberteau, M, Ronchail, J, Espinoza, J C, Lengaigne, M, Sultan, B, Polcher, J, Drapeau, G, Guyot, J-L, Ducharne, A, Ciais, P

“…Because of climate change, much attention is drawn to the Amazon River basin, whose hydrology has already been strongly affected by extreme events during the…”
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Climatic control on eastern Andean denudation rates (Central Cordillera from Ecuador to Bolivia) by Pepin, E., Guyot, J.L., Armijos, E., Bazan, H., Fraizy, P., Moquet, J.S., Noriega, L., Lavado, W., Pombosa, R., Vauchel, P.

“…The suspended sediment yield and associated current denudation rates of eight large catchments located along the eastern range of the central Andes have been…”
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Sea-tide effects on flows in the lower reaches of the Amazon River by Kosuth, Pascal, Callède, Jacques, Laraque, Alain, Filizola, Naziano, Guyot, Jean Loup, Seyler, Patrick, Fritsch, Jean Marie, Guimarães, Valdemar

“…The physical influence of sea tides on the lower reaches of the Amazon River can be identified more than 1000 km upstream from the sea. Analysis of upstream…”
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An index concentration method for suspended load monitoring in large rivers of the Amazonian foreland by Santini, William, Camenen, Benoît, Le Coz, Jérôme, Vauchel, Philippe, Guyot, Jean-Loup, Lavado, Waldo, Carranza, Jorge, Paredes, Marco A, Pérez Arévalo, Jhonatan J, Arévalo, Nore, Espinoza Villar, Raul, Julien, Frédéric, Martinez, Jean-Michel

“…Because increasing climatic variability and anthropic pressures have affected the sediment dynamics of large tropical rivers, long-term sediment concentration…”
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Holocene changes in monsoon precipitation in the Andes of NE Peru based on δ18O speleothem records by Bustamante, M.G., Cruz, F.W., Vuille, M., Apaéstegui, J., Strikis, N., Panizo, G., Novello, F.V., Deininger, M., Sifeddine, A., Cheng, H., Moquet, J.S., Guyot, J.L., Santos, R.V., Segura, H., Edwards, R.L.

“…Two well-dated δ18O-speleothem records from Shatuca cave, situated on the northeastern flank of the Peruvian Andes (1960 m asl) were used to reconstruct…”
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Temporal relations between meander deformation, water discharge and sediment fluxes in the floodplain of the Rio Beni (Bolivian Amazonia) by Gautier, E., Brunstein, D., Vauchel, P., Roulet, M., Fuertes, O., Guyot, J. L., Darozzes, J., Bourrel, L.

“…The Andean Cordillera and piedmont significantly influence river system and dynamics, being the source of many of the important rivers of the Amazon basin. The…”
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Temporal dynamics of water and sediment exchanges between the Curuaí floodplain and the Amazon River, Brazil by Bourgoin, Laurence Maurice, Bonnet, Marie-Paule, Martinez, Jean-Michel, Kosuth, Pascal, Cochonneau, Gerard, Moreira-Turcq, Patricia, Guyot, Jean-Loup, Vauchel, Philippe, Filizola, Naziano, Seyler, Patrick

“…The fluvial transport and storage of sediments within channel–floodplain systems can act as important sinks of sediments. In this study, we document the role…”
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Channel and floodplain sediment dynamics in a reach of the tropical meandering Rio Beni (Bolivian Amazonia) by Gautier, Emmanuèle, Brunstein, Daniel, Vauchel, Philippe, Jouanneau, Jean-Marie, Roulet, Marc, Garcia, Coral, Guyot, Jean-Loup, Castro, Marcello

“…The study investigates interactions, water and sediment exchanges, between a rapidly migrating meander and its associated floodplain at fine temporal and…”
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Pertinent spatio-temporal scale of observation to understand suspended sediment yield control factors in the Andean region: the case of the Santa River (Peru) by Morera, S. B, Condom, T, Vauchel, P, Guyot, J.-L, Galvez, C, Crave, A

“…Hydro-sedimentology development is a great challenge in Peru due to limited data as well as sparse and confidential information. This study aimed to quantify…”
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Carbon sedimentation at Lago Grande de Curuai, a floodplain lake in the low Amazon region: insights into sedimentation rates by Moreira-Turcq, P., Jouanneau, J.M., Turcq, B., Seyler, P., Weber, O., Guyot, J.L.

“…We studied recent organic carbon sedimentation in an Amazonian floodplain using sediment trap samples and one core. Sediment traps were placed in several lakes…”
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Sediment budget of the Napo River, Amazon basin, Ecuador and Peru by Laraque, A, Bernal, C, Bourrel, L, Darrozes, J, Christophoul, F, Armijos, E, Fraizy, P, Pombosa, R, Guyot, J.L

“…The upstream-downstream sediment budget along the Napo River (100 520 km², 6300 m³ s⁻¹) was studied in the Andean foothills of Ecuador, at the west of the…”
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Crevassing and capture by floodplain drains as a cause of partial avulsion and anastomosis (lower Rio Pastaza, Peru) by Bernal, Carolina, Christophoul, Frédéric, Darrozes, José, Laraque, Alain, Bourrel, Luc, Soula, Jean-Claude, Guyot, Jean-Loup, Baby, Patrice

“…Avulsion is the main process at the origin of anastomosing rivers. This study illustrates 3 examples of avulsions resulting from crevasse splays evolving in…”
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Increase in suspended sediment discharge of the Amazon River assessed by monitoring network and satellite data: Sediment sources and sediment delivery under environmental change. Special issue by MARTINEZ, J.M, GUYOT, J.L, FILIZOLA, N, SONDAG, F

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Sediment production and transport from in situ-produced cosmogenic 10Be and river loads in the Napo River basin, an upper Amazon tributary of Ecuador and Peru by Wittmann, H., von Blanckenburg, F., Guyot, J.L., Laraque, A., Bernal, C., Kubik, P.W.

“…Cosmogenic nuclide-based denudation rates and published erosion rates from recent river gauging in the Napo River basin (Peruvian Amazonia) are used to…”
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