Search Results - "Gratiot, N."

Monitoring discharge in a tidal river using water level observations: Application to the Saigon River, Vietnam by Camenen, B., Gratiot, N., Cohard, J.-A., Gard, F., Tran, V.Q., Nguyen, A.-T., Dramais, G., van Emmerik, T., Némery, J.

“…The hydrological dynamics of the Saigon River is ruled by a complex combination of factors, which need to be disentangled to prevent and limit risks of…”
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Biogeochemical functioning of an urbanized tropical estuary: Implementing the generic C-GEM (reactive transport) model by Nguyen, A.T., Némery, J., Gratiot, N., Garnier, J., Dao, T.S., Thieu, V., Laruelle, G.G.

“…Estuaries are amongst the most productive ecosystems of the land ocean continuum, but they are also under high anthropic pressures due to coastal urbanization…”
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Global uncertainty analysis of suspended sediment monitoring using turbidimeter in a small mountainous river catchment by Navratil, O., Esteves, M., Legout, C., Gratiot, N., Nemery, J., Willmore, S., Grangeon, T.

“…► Uncertainties of suspended sediment concentrations and yields are highly site- and time-dependent. ► They significantly vary with the hydro-sedimentary…”
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Significant contribution of the 18.6 year tidal cycle to regional coastal changes by Gratiot, N, Wells, J. T, Anthony, E. J, Gardel, A, Proisy, C, Gaucherel, C

“…Although rising global sea levels will affect the shape of coastlines over the coming decades, the most severe and catastrophic shoreline changes occur as a…”
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Carbon, nitrogen, phosphorus, and sediment sources and retention in a small eutrophic tropical reservoir by Némery, J, Gratiot, N, Doan, P. T. K, Duvert, C, Alvarado-Villanueva, R, Duwig, C

“…Rapid urbanization and the absence of efficient water management policies are increasingly degrading the water quality of tropical reservoirs in developing…”
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Sub-daily variability of suspended sediment fluxes in small mountainous catchments - implications for community-based river monitoring by Duvert, C, Gratiot, N, Némery, J, Burgos, A, Navratil, O

“…Accurate estimates of suspended sediment yields depend on effective monitoring strategies. In mountainous environments undergoing intense seasonal…”
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On the determination of the settling flux of cohesive sediments in a turbulent fluid by Gratiot, N., Michallet, H., Mory, M.

“…In this paper we compare the settling flux of a cohesive sediment mixture measured in a quiescent fluid with that achieved in a turbulent flow. Experiments…”
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Increase in surface runoff in the central mountains of Mexico: lessons from the past and predictive scenario for the next century by Gratiot, N., Duvert, C., Collet, L., Vinson, D., Némery, J., Sáenz-Romero, C.

“…The hydrological response of a medium scale mountainous watershed (Mexico) is analysed over half a century. The hydrograph separation highlights an increasing…”
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Baseflow control on sediment flux connectivity: Insights from a nested catchment study in Central Mexico by Duvert, Clément, Gratiot, Nicolas, Anguiano-Valencia, Roberto, Némery, Julien, Mendoza, Manuel E., Carlón-Allende, Teodoro, Prat, Christian, Esteves, Michel

“…In order to assess the extent of sediment connectivity between uplands and lowlands and to quantify the processes of in-channel deposition and remobilization,…”
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An experimental investigation of floc characteristics in a diffusive turbulent flow by Gratiot, N., Manning, A.J.

“…The work presented aimed at investigating the influence of the physical processes effecting mud flocculation in a grid stirred experiment. Two natural muds…”
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Estimation of the nesting season of marine turtles from incomplete data: statistical adjustment of a sinusoidal function by Gratiot, N., Gratiot, J., Kelle, L., de Thoisy, B.

“…Because of logistical and financial constraints, nest counts of marine turtles are often limited in time and space. To overcome this difficulty, we developed a…”
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Coastal engineering and large-scale mangrove destruction in Guyana, South America: Averting an environmental catastrophe in the making by Anthony, Edward J., Gratiot, Nicolas

“…This short communication highlights potential destabilisation of the muddy coast of Guyana, South America, caused by large-scale mangrove destruction. The…”
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Assessing typhoon-induced compound flood drivers: a case study in Ho Chi Minh City, Vietnam by Rodrigues do Amaral, Francisco, Gratiot, Nicolas, Pellarin, Thierry, Tu, Tran Anh

“…We investigate the most severe rainfall event ever experienced in Ho Chi Minh City (HCMC), Vietnam. It occurred on 25 November 2018 when Typhoon (TY) Usagi…”
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Towards prediction of suspended sediment yield from peak discharge in small erodible mountainous catchments (0.45–22km2) of France, Mexico and Spain by Duvert, C., Nord, G., Gratiot, N., Navratil, O., Nadal-Romero, E., Mathys, N., Némery, J., Regüés, D., García-Ruiz, J.M., Gallart, F., Esteves, M.

“…► We studied the relationships between SSY and Qmax in eight small mountainous catchments. ► Correlations between the two variables were statistically…”
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Mud bank colonization by opportunistic mangroves: A case study from French Guiana using lidar data by Proisy, Christophe, Gratiot, Nicolas, Anthony, Edward J., Gardel, Antoine, Fromard, François, Heuret, Patrick

“…Mud bank colonization by mangroves on the Amazon-influenced coast of French Guiana was studied using light detection and ranging (lidar) data which provide…”
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Trade-wind waves and mud dynamics on the French Guiana coast, South America: Input from ERA-40 wave data and field investigations by Gratiot, Nicolas, Gardel, Antoine, Anthony, Edward J.

“…The South American coast between Brazil and Venezuela is affected by longshore migrating mud banks derived from the fine-grained Amazon sediment discharge…”
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Nearshore intertidal topography and topographic-forcing mechanisms of an Amazon-derived mud bank in French Guiana by Anthony, Edward J., Dolique, Franck, Gardel, Antoine, Gratiot, Nicolas, Proisy, Christophe, Polidori, Laurent

“…The intertidal topography in the vicinity of the contact zone between a longshore-migrating Amazon-derived mud bank and the muddy terrestrial shoreline in…”
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Structural effects of tidal exposures on mudflats along the French Guiana coast by Fiot, Jérôme, Gratiot, Nicolas

“…Wetting and drying cycles on intertidal mudflats vary considerably with altitude, modifying the physical characteristics of surface sediment in ways favoring…”
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Sub-daily variability of suspended sediment fluxes in small mountainous catchments &ndash implications for community-based river monitoring by Duvert, C., Gratiot, N., Némery, J., Burgos, A., Navratil, O.

“…Accurate estimates of suspended sediment yields depend on effective monitoring strategies. In mountainous environments undergoing intense seasonal…”
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A Satellite Image–Based Method for Estimating Rates of Mud Bank Migration, French Guiana, South America by Gardel, Antoine, Gratiot, Nicolas

“…The muddy Guyanas coastline in South America experiences significant short-term change involving alternations of accretion and erosion as a result of the…”
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