Publications by Ulrich Lemmin | EPFL Graph Search

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The use of acoustics to measure sediment transport boundary layer processes has gained increasing acceptance over the past two decades. This has occurred through the development of increasingly sophisticated measuring systems and theoretical developments, ...

Shear layers and corresponding Kelvin Helmholtz-type Coherent Structures (KHCS) can be generated by rivers discharging into laterally-unconfined quiescent open water bodies (e.g., lakes). When the river discharge has a greater density than the receiving wa ...

Detailed studies of wind-driven interbasin exchange in lakes, focusing on the underlying driving forces and how they are affected by stratification, are presently lacking. We therefore investigated how strati-fication modifies wind-induced exchange between ...

The Leman-Baikal project constitutes an international Swiss-Russian collaborative research initiative in the field of physical limnology. The three-year framework involves the development and deployment of a novel multispectral and hyperspectral remote sen ...

Le projet Léman-Baïkal, fruit d'une collaboration scientifique entre la Russie et la Suisse, a permis de développer une nouvelle plateforme de télédétection utilisant des techniques d'imagerie multispectrale et hyperspectrale. Cette plateforme a été testée avec succès sur un aéronef ultraléger motorisé aussi bien au-dessus des lacs que des terres. Cet article présente la méthodologie développée pour la plateforme de télédétection, ainsi que les premiers résultats.

Ulrich Lemmin

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Inter-basin exchange and mixing in hypolimnion of a large lake: The role of long internal waves

A multi-frequency Acoustic Concentration and Velocity Profiler (ACVP) for boundary layer measurements of fine-scale flow and sediment transport processes

Buoyancy-tilted Shear Layers and Coherent Structures in Hyperpycnal River Plume Plunging

What role does stratification play during winter in wind-induced exchange between the multi-depth basins of a large lake (Lake Geneva)?

Inter-basin exchange and mixing in a large lake: the role of long internal waves

Dynamics of secoundary of secondary currents and surface boils in turbulent open-channel flow revealed by surface particle image velocity measurements

Cross-section periodicity of turbulent gravel-bed river flows

Cold-water events in the mixed layer of Lake Geneva

Detection and reconstruction of coherent structures based on wavelet multiresolution analysis

Turbulence measurements in shallow flows in gravel-bed rivers

Experimental study on fine sediment resuspension in accelerating rough-bed open-channel flow

Cold-water events and dissipation in the mixed layer of a lake

Leman-Baikal: Remote sensing of lakes using an ultralight plane

A Study of Bottom Boundary Layer Dynamics in Unsteady Sediment-Laden Open-Channel Flow Using Acoustic Profiling

Means of noise reduction in acoustic turbulence measurement

Velocity and Turbulence Distribution in Unsteady Rough-Bed Open-Channel Flow

Discussion of « Turbulence Measurements with Acoustic Doppler Velocimeters. » by Carlos M. García, Mariano I. Cantero, Yarko Niño, and Marcelo H. García

Télédétection multi-échelle des lacs depuis un aéronef ultraléger motorisé

Discussion of « Unobstructed and obstructed turbulent flows in gravel bed rivers » by H. M. Tritico and R.H Hotchkiss

Internal Seiche dynamics in Lake Geneva