Search Results - "Lefebvre, Alice"

Rapid Down‐Slope Transport of Fresh Dissolved Organic Matter to the Deep Ocean in the Eastern North Atlantic by Wei, Bingbing, Seidel, Michael, Mollenhauer, Gesine, Lefebvre, Alice, Miramontes, Elda, Grotheer, Hendrik, Elvert, Marcus, Wendt, Jenny, Dittmar, Thorsten, Holtappels, Moritz

“…Intense convective mixing in the central North Atlantic is a major gateway for dissolved organic matter (DOM) into the deep ocean, sustaining elevated…”
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Three‐Dimensional Flow Above River Bedforms: Insights From Numerical Modeling of a Natural Dune Field (Río Paraná, Argentina) by Lefebvre, Alice

“…Bedforms are ubiquitous features in rivers and shallow seas, as mobile sediment is transported by flowing water. The mutual interaction of hydrodynamics and…”
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Special issue: Marine and river bedforms dynamics, MARID VI by Lefebvre, Alice, Winter, Christian

“…Marine and river bedforms are rhythmic features driven by unidirectional or reversing currents and waves. They are ubiquitous on the floors of rivers,…”
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The Influence of Bed Roughness on Turbulence: Cabras Lagoon, Sardinia, Italy by Chirol, Clementine, Amos, Carl L, Kassem, Hachem, Lefebvre, Alice, Umgiesser, Georg, Cucco, Andrea

“…Estimates of bed roughness used for predictions of sediment transport are usually derived either from simple scalars of the physical roughness (i.e., ripple…”
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Predicting bed form roughness: the influence of lee side angle by Lefebvre, Alice, Winter, Christian

“…Flow transverse bedforms (ripples and dunes) are ubiquitous in rivers and coastal seas. Local hydrodynamics and transport conditions depend on the size and…”
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Diversity at a Small Geoscience Conference by Lefebvre, Alice, Bernhard, Renée

“…Large conferences lack diversity, as it has been demonstrated by analyses of several diversity measures. In the present contribution, we analyze the gender,…”
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Morphology of estuarine bedforms, Weser Estuary, Germany by Lefebvre, Alice, Herrling, Gerald, Becker, Marius, Zorndt, Anna, Krämer, Knut, Winter, Christian

“…Large bedforms (dunes) are present in many shallow‐water environments. Knowledge of their dimensions and dynamics is required for river and coastal management…”
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Channel inception through bottom‐current erosion of pockmarks revealed by numerical simulation by Yu, Kaiqi, Lefebvre, Alice, Li, Wei, Zhan, Wenhuan, Miramontes, Elda

“…Abstract In deep‐marine environments, the inception of channels can be induced by the interaction between bottom currents and rough topography. However, it is…”
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Characterising natural bedform morphology and its influence on flow by Lefebvre, Alice, Paarlberg, Andries J., Winter, Christian

“…Bedforms such as dunes and ripples are ubiquitous in rivers and coastal seas, and commonly described as triangular shapes from which height and length are…”
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The effect of asymmetric dune roughness on tidal asymmetry in the Weser estuary by Herrling, Gerald, Becker, Marius, Lefebvre, Alice, Zorndt, Anna, Krämer, Knut, Winter, Christian

“…The bed of estuaries is often characterized by ripples and dunes of varying size. Whereas smaller bedforms adapt their morphological shape to the oscillating…”
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The influence of dune lee side shape on time-averaged velocities and turbulence by Lefebvre, Alice, Cisneros, Julia

“…Underwater dunes are found in various environments with strong hydrodynamics and movable sediment such as rivers, estuaries and continental shelves. They have…”
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Estimation of roughness lengths and flow separation over compound bedforms in a natural-tidal inlet by Lefebvre, Alice, Ernstsen, Verner B., Winter, Christian

“…The hydraulic effect of asymmetric compound bedforms on tidal currents was assessed from field measurements of flow velocity in the Knudedyb tidal inlet,…”
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Flow separation and shear stress over angle-of-repose bed forms: A numerical investigation by Lefebvre, Alice, Paarlberg, Andries J., Winter, Christian

“…Large asymmetric bed forms commonly develop in rivers. The turbulence associated with flow separation that develops over their steep lee side is responsible…”
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Towards adopting open and data‐driven science practices in bed form dynamics research, and some steps to this end by Gutierrez, Ronald R., Lefebvre, Alice, Núñez‐González, Francisco, Avila, Humberto

“…In recent years, open and data‐driven science has fostered very important scientific breakthroughs. This study describes the challenges and opportunities for…”
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Factors controlling the morphology and internal sediment architecture of moats and their associated contourite drifts by Wilckens, Henriette, Schwenk, Tilmann, Lüdmann, Thomas, Betzler, Christian, Zhang, Wenyan, Chen, Jiayue, Hernández‐Molina, F. Javier, Lefebvre, Alice, Cattaneo, Antonio, Spieß, Volkhard, Miramontes, Elda

“…ABSTRACT The interaction of sedimentary systems with oceanographic processes in deep‐water environments is not well understood yet, despite its importance for…”
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Flow separation and shear stress over angle-of-repose bed forms: A numerical investigation: FLOW SEPARATION AND SHEAR STRESS OVER BED FORMS by Lefebvre, Alice, Paarlberg, Andries J., Winter, Christian

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Automated Bedform Identification—A Meta‐Analysis of Current Methods and the Heterogeneity of Their Outputs by Scheiber, Leon, Zomer, Judith, Wang, Li, Cisneros, Julia, Gutierrez, Ronald R., Lefebvre, Alice

“…Ongoing efforts to characterize underwater dunes have led to a considerable number of freely available tools that identify these bedforms in a (semi‐)automated…”
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Wave-induced Sand re-Suspension at Dredged Gravel Pits based upon Hydrodynamic Measurements (Tromper Wiek, Baltic Sea) by Garel, Erwan, Lefebvre, Alice

“…Gravel pits created by anchor hopper dredging may affect regional sediment transport patterns by trapping sediments. In turn, this may cause -or…”
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Influence of compound bedforms on hydraulic roughness in a tidal environment by Lefebvre, Alice, Ernstsen, Verner B., Winter, Christian

“…The effect exerted by the seabed morphology on the flow is commonly expressed by the hydraulic roughness, a fundamental parameter in the understanding and…”
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Trachelectomy: How is it actually done? A review from FRANCOGYN group Titre: Trachélectomie: comment faire en pratique ? Revue de la littérature par le groupe FRANCOGYN by Lefebvre, Alice, Raimond, Emilie, Chauvet, Pauline, Touboul, Cyril, Canlorbe, Geoffroy, Lavoué, Vincent, Ouldamer, Lobna, Collinet, Pierre, Bendifallah, Sofiane, Carcopino, Xavier, Lecointre, Lise, Kerbage, Yohan

“…Because of the peak incidence of cervical cancer between the ages of 35 and 44 and the increasing age of first pregnancy, the issue of fertility preservation…”
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