Dr Pierre Cazenave

Numerical Modeller


Contact Details


Dr Cazenave's current research focuses on the application of unstructured grid modelling in coastal environments, using the model FVCOM (the Finite Volume Community Ocean Model). Coupled with FVCOM, the ERSEM ecosystem model is used to assess the impacts of marine renewable energy devices (e.g. offshore wind farms, tidal turbines and wave energy devices) on the physical and ecosystem aspects of shelf seas. In particular, marine renewable energy installations at WaveHub off the north Cornish coast, in the Irish Sea and in the Orkneys (at EMEC) are the focus of study at present.  

His recent work has focused on the impact of offshore wind turbine impacts on stratified shelf seas. In order to investigate the impacts at shelf scales, an FVCOM model of the Irish Sea, English Channel and southern North Sea was built. Including wind turbine monopiles as hexagonal islands within the unstructured grid meant it was possible to assess their impacts over the entire domain. The wind turbines increase the stratified layer permeability with the onset of stratification in spring by inducing additional vertical flow in the vicinity of the wind turbine monopiles. The wind turbines also alter the distribution of the major diurnal tidal constituent (M2), particularly in the high flood risk regions along the eastern English coastline. 

Work which is almost complete is the assessment of impacts from climate change scenarios on the aquaculture industry. The project, entitled ROSA (Risks and Opportunities for Sustainable Aquaculture – BBSRC/NERC reference BB/M026221/1), uses FVCOM coupled to ERSEM to drive a shellfish model (ShellSIM and ShellGIS) to predict changes in the dynamics of aquaculture practice in the UK.

Pierre is also using FVCOM to look at the impacts of Carbon Sequestration and Storage (CCS) on shelf seas, particularly the spatial extent of its impact based on a range of anticipated leak scenarios.

Key Projects

FLOW and Benthic ECology (FLOWBEC) (2011-2014)

UK Energy Research Centre (UKERC) (2012-2015)
 

Publications

Cazenave, P. W., Torres, R., Allen, J. I. (2016) Unstructured grid modelling of offshore wind farm impacts on seasonally stratified shelf seas, Progress in Oceanography. 

Waggitt, J., Cazenave, P., Torres, R., Williamson, B., Scott, B.(2016) Predictable hydrodynamic conditions explain temporal variations in the density of benthic foraging seabirds in a tidal stream environment, ICES Journal of Marine Science. 

Skakala, J., Cazenave, P. W., Smyth, T. J., Torres, R. (2016) Multifractal metrics for the model skill evaluation, Journal of Geophysical Research. 

Holland, R.A., Kate Scott, Hinton, E.D., Melanie C. Austen, Barrett, J., Beaumont, N., Blaber-Wegg, T., Brown, G., Carter-Silk, E., Cazenave, P., Eigenbrod, F., Hiscock, K., Hooper, T., Lovett, A., Papathanasopoulou, E., Smith, P., Thomas, A., Tickner, R., Torres, R., Taylor, G., (2016) Bridging the gap between energy and the environment, Energy Policy. 

Waggitt, J., Cazenave, P. W., Torres, R. Williamson, B., Scott, B. (2016) Quantifying Pursuit Diving Seabirds’ Associations with Fine- Scale Physical Features in a High Tidal Energy Environment, Journal of Applied Ecology. 

Yang, M., Bell, T. G., Hopkins, F. E., Kitidis, V., Cazenave, P. W., Nightingale, P. D. , Yelland, M. J., Smyth, T. J. (2016) Air-Sea Fluxes of CO2 and CH4 from the Penlee Point Atmospheric Observatory on the South West Coast of the UK, Atmospheric Chemistry and Physics Discussions 2016: 1–30. doi:10.5194/acp-2015-717. 

Butenschön, M., Clark, J., Aldridge, J.N., Allen, J.I., Artioli, Y., Blackford, J., Bruggeman, J., Cazenave, P., Ciavatta, S., Kay, S., Lessin, G., van Leeuwen, S., van der Molen, J., de Mora, L., Polimene, L., Sailley, S., Stephens, N., Torres, R., (2016) ERSEM 15.06: a generic model for marine biogeochemistry and the ecosystem dynamics of the lower trophic levels. Geoscientific Model Development Discussions 8, 7063–7187. doi:10.5194/gmdd-8-7063-2015

Torres, R., Cazenave, P. W., Ciavatta, S., Allen, J. I. (2014) Application of FVCOM-ERSEM to the management of coastal lagoons. Example from the Nador Lagoon (Morocco), Advances in Marine Ecosystem Research (AMEMR) IV ‘Future Challenges’, 30th June-3rd July 2014, Plymouth.

Cazenave, P. W., Torres, R., Allen, J. I., Bell, P. (2014) Offshore renewable energy device impacts on seasonally stratified seas around the UK: an unstructured modelling approach. Partnership for Research in Marine Renewable Energy (PRIMaRE) 1st Annual conference, 4-5 June 2014, Plymouth.

Blackford, J. C., Torres, R., Cazenave, P., Artioli, Y. (2013) Modelling Dispersion of CO2 Plumes in Sea Water as an Aid to Monitoring and Understanding Ecological Impact, Energy Procedia 37 p3379-3386. DOI:10.1016/j.egypro.2013.06.226. 

Ferrini, V. L., Shillington, D. J., Gillis, K., MacLeod, C. J., Teagle, D. A., Morris, A., Cazenave, P. W., Hurst, S., Tominaga, M., and the JC21 Scientific Party (2013) Evidence of mass failure in the Hess Deep Rift from multi-resolutional bathymetry data, Marine Geology. 

Cazenave, P. W., Dix, J. K., Lambkin, D. O. and McNeill, L. C. (2013) A method for semi-automated objective quantification of linear bedforms from multi-scale digital elevation models, Earth Surface Processes and Landforms, DOI: 10.1002/esp.3269. 

Dix, J. K., Cazenave, P. W., Lambkin, D. O., Rangecroft, T., Pater, C. and Oxley, I. (2008) Sedimentation-Erosion Modelling as a tool for Underwater Cultural Heritage Management, In: Manders, M., Oosting, R. and Brouwers, W. (eds.), MACHU Final Report 3. European Union Culture 2000 Programme, Amersfoort, ISBN 978-90-76046-58-7, p48-53. 

Cazenave, P. W., Lambkin, D. O. and Dix, J. K. (2008) Quantitative bedform analysis using decimetre resolution swath bathymetry. Presented at the CARIS 12th International User Group Conference, Bath, United Kingdom. 

Cazenave P. W. (2007) High-resolution geophysical bedform analysis at Hastings Shingle Bank. In: Dix, J. K., Lambkin, D. O., Thomas, M. D. and Cazenave, P. W. Modelling Exclusion Zones for Marine Aggregate Dredging. English Heritage Aggregate Levy Sustainability Fund Project 3365 Final Report, p118-158. 

Dix, J. K., Lambkin, D. O. and Cazenave, P. W. (2007) Development of a Regional Sediment Mobility Model for Submerged Archaeological Sites. English Heritage ALSF project no. 5524. School of Ocean and Earth Science, University of Southampton, U.K. 156pp.

< Back to staff list