About:

Publications

Selected talks

Research Topics:

* Coastal dynamics, tides, sediment transport, with a focus on the Wadden Sea;

* Internal waves, generation of internal tides and solitons.

Projects:

* ZKO "PACE"

* Ecoshape BwN NTW3.1

* FOKUZ

Publications:

T. Gerkema, J. Nauw & C.M. van der Hout (2013): Measurements on the transport of suspended particulate matter in the Vlie Inlet. Neth. J. Geosc., submitted.

T. Gerkema (2013): The distribution of bathymetric slopes in the ocean in relation to critical reflection of internal waves. Fundamental and applied Hydrophysics, 6 (3), 14-18. pdf

T. Gerkema, L.R.M. Maas & H. van Haren (2013): A note on the role of mean flows in Doppler-shifted frequencies. J. Phys. Oceanogr., 43 (2), 432-441, doi:10.1175/JPO-D-12-090.1. pdf

T. Gerkema & L.R.M. Maas (2013): Wiskundige aspecten van interne golven. Nieuw Arch. v. Wisk., 5/14 (3), 172-176. pdf

J.M. Magalhaes, J.C.B. da Silva, M. Batista, L. Gostiaux, T. Gerkema, A.L. New & D.R.G. Jeans (2013): On the detectability of internal waves by an imaging lidar. Geophys. Res. Lett., 40, 2-6, doi10:1002/grl.50669.

B. King, M. Stone, H.P. Zang, T. Gerkema, M. Marder, R.B. Scott & H.L. Swinney (2012): Buoyancy frequency profiles and internal semidiurnal tide turning depths in the oceans. J. Geophys. Res., 117, C04008, doi:10.1029/2011JC007681.

T. Gerkema & H. van Haren (2012): Absence of internal tidal beams due to non-uniform stratification. J. Sea Res., 74, 2-7, doi:10.1016/j.seares.2012.03.008.

M.J. Mercier, M. Mathur, L. Gostiaux, T. Gerkema, J.M. Magalhães, J.C.B. da Silva & T. Dauxois (2012): Soliton generation by internal tidal beams impinging on a pycnocline: laboratory experiments. J. Fluid Mech., 704, 37-60, doi:10.1017/jfm.2012.191. pdf

J.C.B. da Silva, J.M. Magalhaes, T. Gerkema & L.R.M. Maas (2012): Internal solitary waves in the Red Sea: an unfolding mystery.  Oceanography, 25 (2), 96-107.

T. Gerkema & L. Gostiaux (2012): A brief history of the Coriolis force. European Physics News, 43/2, 14-17, doi:10.1051/epn/2012202 (reedition of 2009 paper). pdf

T. Gerkema (2011): Comment on “Internal-tide energy over topography” by Kelly et al. J. Geophys. Res., 116, C07029, doi:10.1029/2010JC006611. pdf

K.B. Winters, P. Bouruet-Aubertot & T. Gerkema (2011): Critical reflection and abyssal trapping of near-inertial waves on a ß-plane. J. Fluid Mech., 684, 111-136. pdf

N. Grisouard, C. Staquet & T. Gerkema (2011): Generation of internal solitary waves in a pycnocline by an internal wave beam: a numerical study. J. Fluid Mech., 676, 491-513.

H. van Haren, L.R.M. Maas & T. Gerkema (2010): Patchiness in internal tidal beams. J. Mar. Res., 68 (2), 237-257.

T. Gerkema & L. Gostiaux (2010): Petite histoire de la force de Coriolis. La Météorologie, nº 69, 25-29 [reedition of 2009 paper].

T. Gerkema & L. Gostiaux (2009): Petite histoire de la force de Coriolis. Reflets de la Physique, 17, 18-21. pdf

T. Gerkema & E. Exarchou (2008): Internal-wave properties in weakly stratified layers. J. Mar. Res., 66 (5), 617-644. pdf

T. Gerkema, J.T.F. Zimmerman, L.R.M. Maas & H. van Haren (2008): Geophysical and astrophysical fluid dynamics beyond the traditional approximation. Rev. Geophys., 46, RG2004, doi:10.1029/2006RG000220. pdf

T. Gerkema (2008): Een kleine geschiedenis van de Corioliskracht. Meteorologica, 17 (4), 9-13. pdf

R. Maugé & T. Gerkema (2008): Generation of weakly nonlinear nonhydrostatic internal tides over large topography: a multi-modal approach. Nonlin. Processes Geophys., 15, 233-244. pdf

T. Gerkema & J.T.F. Zimmerman (2008): An introduction to internal waves. Lecture notes, Royal NIOZ, 207 pp. pdf

T. Gerkema & H. van Haren (2007): Internal tides and energy fluxes over Great Meteor Seamount. Ocean Sci., 3, 441-449. pdf

C. Garrett & T. Gerkema (2007): On the body-force term in internal-tide generation. J. Phys. Oceanogr., 37 (8), 2172-2175. pdf

A. Koch-Larrouy, G. Madec, P. Bouruet-Aubertot, T. Gerkema, L. Bessières & R. Molcard (2007): On the transformation of Pacific Water into Indonesian Throughflow Water by internal tidal mixing. Geophys. Res. Lett., 34, L04604, doi:10.1029/2006GL028405.

T. Gerkema (2006): Internal-wave reflection from uniform slopes: higher harmonics and Coriolis effects. Nonlin. Processes Geophys., 13, 265-273. pdf

T. Gerkema, C. Staquet & P. Bouruet-Aubertot (2006): Decay of semi-diurnal internal-tide beams due to subharmonic resonance. Geophys. Res. Lett., 33, L08604, doi:10.1029/2005GL025105.

T. Gerkema & V.I. Shrira (2006): Non-traditional reflection of internal waves from a sloping bottom, and the
likelihood of critical reflection. Geophys. Res. Lett., 33, L06611, doi:10.1029/ 2005GL025627.

T. Gerkema, C. Staquet & P. Bouruet-Aubertot (2006): Nonlinear effects in internal-tide beams, and mixing. Ocean Modelling, 12 (3/4), 302-318.

T. Gerkema & V.I. Shrira (2005): Near-inertial waves on the “nontraditional” beta plane. J. Geophys. Res., 110, C01003, doi:10.1029/2004JC002519.

T. Gerkema & V.I. Shrira (2005): Near-inertial waves in the ocean: beyond the “traditional approximation”. J. Fluid Mech., 529, 195-219, doi:10.1017/S0022112005003411. pdf

W.T.M. Verkley & T. Gerkema (2004): On maximum entropy profiles. J. Atmos. Sc., 61 (8), 931--936. pdf

F.P.A. Lam, L.R.M. Maas & T. Gerkema (2004): Spatial structure of tidal and residual currents as observed over the shelf break in the Bay of Biscay. Deep-Sea Res. I, 51 (8), 1075-1096.

T. Gerkema, F.P.A. Lam & L.R.M. Maas (2004): Internal tides in the Bay of Biscay: conversion rates and seasonal effects. Deep-Sea Res. II, 51 (25/26), 2995-3008.

A.A.M. Manders, L.R.M. Maas & T.Gerkema (2004): Observations of internal tides in the Mozambique Channel.  J. Geophys. Res., 109, C12034, doi:10.1029/2003JC002187.

T. Gerkema (2003): Development of internal solitary waves in various thermocline regimes - a multi-modal approach. Nonlin. Processes Geophys., 10 (4/5): 397-405. pdf

T. Gerkema (2002): Application of an internal-tide generation model to baroclinic spring-neap cycles. J. Geophys. Res., 107, C9, 3124, doi:10.1029/2001JC001177. pdf

T. Gerkema (2001): Internal and interfacial tides: beam scattering and local generation of solitary waves. J. Mar. Res., 59 (2), pp 227-255. pdf

M. Blaas, F.P.A. Lam, T. Gerkema & H.E. de Swart (2000): On slope currents forced by density gradients and tidal rectification. In: T. Yanagi. Interactions between estuaries, coastal seas and shelf seas. Terrapub, Tokyo, pp. 233-250.

T. Gerkema (2000): A linear stability analysis of tidally generated sand waves. J. Fluid Mech., 417: 303-322.

T. Gerkema & J.T.F. Zimmerman (1999): Interne golven (lecture notes on internal waves, in Dutch), IMAU rep.D-99-3, Utrecht University.

T. Gerkema (1998): A note on the effect of finite Stokes-layer thickness in a morphodynamic stability problem. In: Proceedings PECS'96 (J.Dronkers & M.Scheffers, eds), pp. 387-395. pdf 

T. Gerkema (1996): A unified model for the generation and fission of internal tides in a rotating ocean. J. Mar. Res., 54 (3), 421-450. pdf

T. Gerkema (1995): Interne getijden en solitonen. Ned. Tijdschrift voor Natuurkunde 61/16, 276-278.
(awarded first prize by The Netherlands’ Physical Society). pdf

T. Gerkema & J.T.F. Zimmerman (1995): Generation of nonlinear internal tides and solitary waves. J. Phys. Oc. 25 (6), 1081-1094. pdf

T. Gerkema (1994): Nonlinear dispersive internal tides: generation models for a rotating ocean. (PhD-thesis, Universiteit Utrecht - Hardcopies still available).

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Selected talks:

The Traditional Approximation in Geophysical Fluid Dynamics (Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, 2011) pdf

Absence of internal tidal beams due to non-uniform stratification (EGU General Assembly, Vienna, 2012) pdf

The role of mean flows in Doppler-shifted frequencies (EGU General Assembly, Vienna, 2013) pdf

Internal waves: beams versus modes (Lecture at 4th Warnemünde Turbulence Days, Vilm, 2009) pdf

Golven in de oceaan (NIOZ open dag, 2010) pdf

De l'Accademia del Cimento à Laboratoire Coriolis (Fête de la Science, Grenoble: 50 ans de la plate-forme Coriolis, 2010) pdf