Vennell, BE (Eng. Science, Auckland)
PhD (MIT/WHOI, Physical Oceanography)
Coastal physical oceanography, ADCP measurement of tidal
currents and dynamics. Oceanographic modelling and data analysis,spatial interpolation, large tidal turbine farms, tidal flow in straits, headland eddies and
secondary flows. Long period ocean waves generated by atmopheric pressure.
of Marine Science
Phone 64-3-479-8307 Fax 64-3-479-8336
Current Research Projects
- ADCP current survey off St Kilda, Dunedin
- ADCP survey of tidal currents at Bluff, NZ
- Set up of permanent ADCP Tauranga Harbour-NZ.
- Port of Auckland-NZ ADCP tidal current maps for vessel
- SouthPort-NZ tidal current maps for vessel simulator more...
- Port Otago-NZ tidal current maps for vessel simulator
- Team New Zealand tidal current and wave predictions more...
Vennell, R., Exceeding the Betz limit with tidal turbines, Renewable Energy, 55, 277-285, (2013) preprint
Divett, T.; R. Vennell and C. Stevens, Optimization of multiple turbine arrays in a channel with tidally reversing flow by numerical modelling with adaptive mesh, Philosophical Transactions of the Royal Society A: Mathematical and Physical Sciences, 71: 20120251, doi:10.1098/rsta.2012.0251 (2013) preprint
Thiebaut, S.; P. McComb, R. Vennell, Prediction of coastal far infra-gravity waves from sea-swell spectra, Journal of Waterway, Port, Coastal and Ocean Engineering, 682, 261–288 139(1), 34–44 (2013)
Vennell, R., The Energetics of Large Tidal Turbine Arrays, Renewable Energy, 48 , 210-219 (2012) pre print
Vennell, R., Realizing the Potential of Tidal Currents and the
Efficiency of Turbine Farms in a Channel, Renewable Energy, 36, 3558–3565 (2012) pre print
Thiebaut, S., and R. Vennell, Resonance of long waves generated by storms obliquely crossing shelf topography in a rotating ocean, Journal of Fluid Mechanics, 682, 261–288, doi:10.1017/jfm.2011.221 (2011) pre print
Smith, I.; P. J. Langhorne, R. D. Frew, R. Vennell, T. G. Haskell, Sea ice growth rates near ice shelves, Cold Regions Science and Technology, 83-84, 57-70 (2012)
Vennell, R., Estimating the Power Potential of Tidal Currents and
Renewable Energy, 36, 3558-3565 , doi:10.1016/j.renene.2011.05.011 (2011) pre print
Leonard G. H., P. Langhorne, M. Williams, R. Vennell, C. Purdie, D. Dempsey, T. Haskell and R, Frew, Evolution of supercooling under coastal Antarctic sea ice during winter, Antarctic Science, 23, 4, 399-409, doi:10.1017/S0954102011000265, (2011)
Vennell, R., Tuning Tidal Turbines In-Concert to Maximise Farm Efficiency, Journal of Fluid Mechanics, 671, 587–604 (2011) pre print
Vennell, R., Tuning Turbines in a Tidal Channel, Journal of Fluid Mechanics, 663, 253-267 (2010) pre print
Vennell, R., Resonance and Trapping of Topographic Transient Ocean Waves Generated by a Moving Atmospheric Disturbance, Journal of Fluid Mechanics, 650, 427-442, (2010) pre print
Griffith, G., R. Vennell and M. Williams, An algal photoprotection index and vertical mixing in the Southern Ocean, Journal of Plankton Research, doi:10.1093/plankt/fbq003 (2010)
Thiebaut, S., and R. Vennell, Observation of a fast continental shelf wave generated by a storm impacting Newfoundland using Wavelet and Cross Wavelet Analysis, Journal of Physical Oceanography, 40 , 2, 417-428, (2010)
Vennell, R., and R. Beatson, A Divergence Free Spatial Interpolator for Large Sparse Velocity Data Sets, Journal of Geophysical Research, 114, C10024, doi:10.1029/2008JC004973 (2009)
Shigetada Kudo, Toshimasa Yanai, Barry Wilson, Hideki Takagi and Ross Vennell, Prediction of fluid forces acting on a hand model in unsteady flow conditions, Journal of Biomechanics, 44, 1124-1130, (2008).
Vennell, R.,Long Barotropic Waves Generated by a Storm
Crossing Topography, Journal of Physical Oceanography, doi:10.1175/2007JPO3687.1, December (2007).
Vennell R and C. Old, High Resolution Observations of the
Intensity of Secondary Circulation along a Curved Tidal
Channel, Journal Geophysical Research -Oceans , VOL. 112, doi:10.1029/2006JC003764, November (2007).
Albrecht, N. and R.Vennell,Tides in two constricted New Zealand lagoons, New Zealand Journal of Marine and Freshwater Research, Vol. 41: 103–118
Albrecht N., R. Vennell, M. Williams, C. Stevens, P. Langhorne,
G. Leonard and T. Haskell, Observation of sub-inertial internal
tides in McMurdo Sound, Antarctica. Geophysical Research
Letters, 33, L24606, doi:10.1029/2006GL027377, (2006)
Vennell, R and R. Beatson. Moving Vessel ADCP Measurement
of Tidal Streamfunction using Radial Basis Functions. Journal
Geophysical Research,Vol. 111, No. C9, C09002 10.1029/2005JC003321,
Sept. (2006) PDF
Vennell, R., ADCP Measurements of Momentum Balance and
Dynamic Topography in a Constricted Tidal Channel. Journal
of Physical Oceanography, Vol. 36, No. 2, pages 177188.
Vennell,R., Dave Pease and Barry Wilson, Wave
drag on human swimmers, Journal of Biomechanics Volume
39, Issue 4 , 2006, Pages 664-67
Old, C. P. and R. Vennell, ADCP measurement of the velocity
field of an ebb tidal jet. Journal Geophysical Research, Vol 106 (C4), pp 7037- 7050, (2001).
Simpson, J.H., R. Vennell and A.J Souza, The
Salt Fluxes in a Tidally-Energetic Estuary. Estuarine,
Coastal and Shelf Science, 52 (1): 131-142, (2001).
Smith, I., P.J. Langhorne, T.G. Haskell, H.J. Trodahl,
R. Frew, and R. Vennell. Platelet ice and the land-fast
sea ice of McMurdo Sound, Antarctica. Annals of Glaciology,
Volume 33, 33, 21-27, (2001).
Shaw, A.G.P. and R. Vennell, Measurements
of an Oceanic Front using a Front-Following Algorithm for
AVHRR SST Imagery Remote Sensing of the Environment
Shaw, A. and R. Vennell, A
front-following algorithm for AVHRR SST Imagery. Remote
Sensing of the Environment, 72(3):317-327 (2000).
Shaw, A. and R. Vennell, Sub-Antarctic
intrusions through the Merno Gap, NZ Journal of Marine
and Freshwater Res., 34, 103-116 (2000).
Shaw, A., L. Kavaliers and R. Vennell Seasonal and inter-annual
variability of SST off the East Coast of the South Island
New Zealand, Geocarta International, 14,3, 27-32 (1999)
Vennell, R., Oscillating barotropic currents along short
channels, Journal of Physical Oceanography, 28,8, 1561-1569,
Vennell, R. Observations of the phase of tidal currents
along a strait, Journal of Physical Oceanography, 28,8,
McCully, D., R. Vennell, and P. Mladenov, Hydrology of
a New Zealand fiord. Recent Advances In Marine Science and
Technology '94. O. Bellwood, H. Choat and N. Saxena. eds.
263- 271 (1995).
Vennell, R. Acoustic
Doppler current meter measurements of tidal phase and amplitude
in Cook Strait, New Zealand. Continental Shelf Research
14:4, 353-364 (1994).
Vennell, R. and M. Moore, Acoustic Doppler Current Profiler
measurements of the semi-diurnal internal tide on the west
coast. NZ Journal of Marine and Freshwater Res., 27, 31-38
Vennell, R. and P. Rizzoli, The influence of a steady
baroclinic deep ocean on the shelf, the vertically well
mixed case. Journal of Physical Oceanography, 20:481-505
Vennell, R. and P. Rizzoli, Coastal flow driven by alongshore
density gradients. Journal of Physical Oceanography, 17:821-827
Refereed Conference Proceedings Papers
Divett T., R.Vennell, and C. Stevens, Optimisation of Multiple Turbine Arrays in a Channel with Tidally Reversing Flow by Numerical Modelling with Adaptive Mesh. Proceedings European Wave and Tidal Energy Conference, 8 pages, Southampton, Sept. (2011)
Divett T., R.Vennell, and C. Stevens, Maximising energy capture by fixed orientation tidal stream turbines in time-varying off axis current. Proceedings Australasian Coasts and Ports Conference, Paper 108, 6 pages, Wellington, Sept. (2009)
Biggs C., R. Nokes and R. Vennell, Laboratory investigation of an ebb tidal jet. Proceedings Australasian Coasts and Ports Conference, Paper 116, 8 pages, Wellington Sept. (2009)
Bailey, C., and R. Vennell, Observations and Froude Number Calculations from the Taieri River, a Salt Wedge Estuary, Proceedings Australasian Coasts and Ports Conference, Paper 81, 7 pages, Wellington, Sept. (2009)
Russell P., and R. Vennell, Observations of Secondary Flow and Upwelling at Cape Saunders, Otago Peninsula. Proceedings Australasian Coasts and Ports Conference, Paper 13, 4 pages, Wellington, Sept. (2009)
Thiebaut S., and R. Vennell and R. Bell, Observation of storm-generated long waves on New Zealand's eastern seaboard, Proceedings Australasian Coasts and Ports Conference, Paper 65, 7 pages, Wellington, Sept. (2009)
Kudo, S., R. Vennell and Barry Wilson, Acceleration effect on fluid forces acting on the hand in swimming. Proceedings 26th International Conference on Biomechanics in Sports, p 101-103, Korea, July (2008)
Russell, P. and R. Vennell, Observations of Secondary Flow Induced by a Wharf. Proceedings 17th Australasian Coasts and Ports Conference 2007, Melbourne, Editor D. Provis,
Vennell, R. Data Analysis of Vessel Mounted ADCP Measurement of Tidal Currents for Port Vessel Simulators. Proceedings 17th Australasian Coastal Engineering Conference, Adelaide Editors M Townsend and D Walker. p 149-154. (2005)
Denham, M., P. Denys, & R. Vennell, Profit from squat? Dynamic ship’s behaviour captured in Otago Harbour, NZ. Proceedings of the 4th Trans Tasman Survey Conference, (2004)
Vennell, R., P. Corney, J. France, C, Christian, A. Barnett, and T. Schnackenberg. Tidal current prediction system for Team New Zealand. Proceedings 18th Australasian Coastal Engineering Conference, Auckland, 165, 1-8, (2003)
Kumar, N. and R.Vennell. Use of POM to model three dimensional baroclinic eddy formation around headlands, Proceedings 16th Australasian Coastal Engineering Conference, Auckland,76, 1-8. (2003)
Corney, P., C. Christian, R. Vennell, and Alastair Barnett, America’s Cup 2000 - 3D Tidal Model of the Hauraki Gulf, Proceedings Coastal Engineering 2000: July 16-21, Sydney, Australia, Editor Billy L. Edge, 3755-3766, Reston, VA, (2001)
Vennell, R. High Horizontal measurements of tidal currents in a harbour channel. In Proceedings 13th Australasian Coastal Engineering Conference, Christchurch 87-92, CAE (1997)
Hume,T.M, K.P Black, J.W. Oldman and R. Vennell Signatures of Wave current forcing on a seabed about a large coastal headland. In Proceedings 13th Australasian Coastal Engineering Conference, Christchurch, CAE, 319-324, (1997)
Vennell, R. and N. R Collins,. Acoustic Doppler current profiler measurements of tides in Cook Strait, NZ. In Proceedings of 10th Australasian Conference on Coastal and Ocean Engineering. Auckland 1991, DSIR, 529-534, (1991)
Millard, R., M. Francis, S. Pu, J. Toole, R. Vennell, Z.Wang, and E. Zou, Characteristics of intermediate, deep and bottom waters in the western equatorial Pacific. Air sea interactions in the tropical western Pacific. Proceedings of US-PRC International TOGA Symposium, 1988, Beijing. China Ocean Press 129-138, (1990)