Search Results - "Maas, Leo R. M"

Imminent reversal of the residual flow through the Marsdiep tidal inlet into the Dutch Wadden Sea based on multiyear ferry-borne acoustic Doppler current profiler (ADCP) observations by van der Molen, Johan, Groeskamp, Sjoerd, Maas, Leo R. M

“…The Dutch Wadden Sea is a UN World Heritage Site connected to the North Sea by multiple tidal inlets. Although there are strong tidal currents flowing through…”
Get full text

Observations of estuarine circulation and solitary internal waves in a highly energetic tidal channel by Groeskamp, Sjoerd, Nauw, Janine J., Maas, Leo R. M.

“…Despite vigorous tidal and wind mixing, observations in an estuarine tidal inlet in the Wadden Sea show that during part of the tidal cycle, vertical…”
Get full text

Seasonal variation of the South Indian tropical gyre by Aguiar-González, Borja, Ponsoni, Leandro, Ridderinkhof, Herman, van Aken, Hendrik M., de Ruijter, Will P.M., Maas, Leo R.M.

“…Based on satellite altimeter data and global atlases of temperature, salinity, wind stress and wind-driven circulation we investigate the seasonal variation of…”
Get full text

Tomographic reconstruction of internal wave patterns in a paraboloid by Hazewinkel, Jeroen, Maas, Leo R. M., Dalziel, Stuart B.

“…Using tomographic synthetic schlieren, we are able to reconstruct the three-dimensional density field of internal waves. In this study, the waves are radiating…”
Get full text

Exact analytic self-similar solution of a wave attractor field by Maas, Leo R.M.

“…Stratified and rotating fluids support obliquely propagating internal waves. A symmetry-breaking shape of the fluid domain focuses them on a wave attractor…”
Get full text

Whole-field density measurements by digital image correlation by van Oers, Alexander M., Kat, Roeland de, Maas, Leo R. M.

“…A novel application of Synthetic Schlieren in a laboratory set-up yields a quantitative measurement of the density field of two-dimensional, stratified or…”
Get full text

In situ measurement of wave attractor induced forces by van Oers, Alexander M., Maas, Leo R. M.

“…An underwater force sensor for internal waves is presented. Using this sensor, we measure forces at a location near the surface of a fluid. The sensor performs…”
Get full text

The high-resolution vertical structure of internal tides and near-inertial waves measured with an ADCP over the continental slope in the Bay of Biscay by van Aken, Hendrik M., van Haren, Hans, Maas, Leo R.M.

“…ADCP measurements of the velocity structure in the permanent thermocline at two locations over the continental slope in the Bay of Biscay are presented. The…”
Get full text

Theory of basin scale dynamics of a stratified rotating fluid by MAAS, Leo R. M

“…The dynamics of a stratified fluid contained in a rotating rectangular box is described in terms of the evolution of the lowest moments of its density and…”
Get full text

Observation of an internal wave attractor in a confined, stably stratified fluid by Maas, Leo R. M, Benielli, Dominique, Sommeria, Joël, Lam, Frans-Peter A

“…When a container of water is vibrated, its response can be described in terms of large-scale standing waves-the eigenmodes of the system. The belief that…”
Get full text

Experimental observation of strong mixing due to internal wave focusing over sloping terrain by Swart, Arno, Manders, Astrid, Harlander, Uwe, Maas, Leo R.M.

“…This paper reports on experimental observation of internal waves that are focused due to a sloping topography. A remarkable mixing of the density field was…”
Get full text

Eddy-driven sediment transport in the Argentine Basin: Is the height of the Zapiola Rise hydrodynamically controlled? by Weijer, Wilbert, Maltrud, Mathew E., Homoky, William B., Polzin, Kurt L., Maas, Leo R. M.

“…In this study, we address the question whether eddy‐driven transports in the Argentine Basin can be held responsible for enhanced sediment accumulation over…”
Get full text

Amplified exchange rate by tidal forcing of a piecewise-linear Helmholtz bay by de Boer, Jordy P., Maas, Leo R. M.

“…Sea-level and current measurements have been performed in the Mok Bay, a tidal embayment in the Dutch Wadden Sea, situated on the island of Texel, the…”
Get full text

Hamiltonian discontinuous Galerkin FEM for linear, stratified (in)compressible Euler equations: internal gravity waves by van Oers, Alexander M., Maas, Leo R.M., Bokhove, Onno

“…The linear equations governing internal gravity waves in a stratified ideal fluid possess a Hamiltonian structure. A discontinuous Galerkin finite element…”
Get full text

Structurally complex sea grass obstructs the sixth sense of a specialized avian molluscivore by de Fouw, Jimmy, van der Heide, Tjisse, Oudman, Thomas, Maas, Leo R.M., Piersma, Theunis, van Gils, Jan A.

“…Predators have evolved many different ways to detect hidden prey by using advanced sensory organs. However, in some environmental contexts sensory information…”
Get full text

Predator escape tactics in birds: linking ecology and aerodynamics by van den Hout, Piet J., Mathot, Kimberley J., Maas, Leo R.M., Piersma, Theunis

“…In most birds, flight is the most important means of escape from predators. Impaired flight abilities due to increased wing loading may increase vulnerability…”
Get full text

Ship-borne contour integration for flux determination by Groeskamp, Sjoerd, Maas, Leo R.M.

“…The consumption of nutrients by mussel beds can be monitored by measuring the net nutrient flux across a circumscribing vertical surface. Measuring this…”
Get full text

First observational evidence of a North Madagascar Undercurrent by Ponsoni, Leandro, Aguiar-González, Borja, Nauw, Janine J., Ridderinkhof, Herman, Maas, Leo R.M.

“…•We report an undercurrent flowing below and opposite to the North Madagascar Current.•The North Madagascar Undercurrent (NMUC) transport is estimated to be…”
Get full text

Zero absolute vorticity plane Couette flow as an hydrodynamic representation of quantum energy states under perpendicular magnetic field by Heifetz, Eyal, Maas, Leo R. M, Mak, Julian

“…Physics of Fluids 33, 127120 (2021) Here we extend the Madelung transformation of the Schr\"{o}dinger equation into a fluid-like form to include the influence…”
Get full text

A new pressure sensory mechanism for prey detection in birds: the use of principles of seabed dynamics? by Piersma, Theunis, Aelst, Renée van, Kurk, Karin, Berkhoudt, Herman, Maas, Leo R. M.

“…We demonstrate a novel mechanism for prey detection in birds. Red knots (…”
Get full text