Reimer de Graaff

expert in the field of coastal hydrodynamics, metocean and climate impact studies
+31(0)6 46911151
reimer.degraaff@deltares.nlMr. Reimer de Graaff is an expert in the field of coastal hydrodynamics, metocean and climate impact studies. After his study physical geography at Utrecht University in 1996 he started as hydrodynamic modeller at Delft Hydraulics, which merged into Deltares in 2008. Now as a senior hydrodynamic expert he has extensive experience and skills as team-leader of multi-disciplinary and scientifically complex projects. He applies his skills in projects worldwide, including the assessment of offshore and nearshore metocean design conditions, setup of marine monitoring and forecasting systems as well as ice studies in lakes and seas. In recent years he is more and more focusing on coastal risk, impact and vulnerability assessments in relation to future climate change effects. Mr. de Graaff frequently shares his knowledge in workshops and training sessions, both at Deltares and at various institutes abroad.
Working experience
1996 - 2007 | Delft Hydraulics | Junior/Medior/Senior advisor Hydraulic Engineering |
2008 - 2015 | Deltares | Senior advisor Hydraulic Engineering |
2016 - present | Deltares | Senior advisor Marine and Coastal Systems |
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Abu Dhabi Ocean Observing System
United Arab Emirates, 2013 - present
Positions held: project manager and hydrodynamic expert
• Main project features: design, setup, validation and support for the Abu Dhabi Ocean Observing System (ADOOS), an integrated marine and meteorological data collection, visualisation and forecasting system (Delft-FEWS).
• Activities performed: project management, setup hydrodynamic and wave models, training.
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Hong Kong International Airport
Hong Kong, 2009, 2012, 2014, 2020
Positions held: project manager and metocean expert
• Main project features: contributing to 3rd runway extension and climate impact assessment.
• Activities performed: data analyses, hydrodynamic modelling, assessment of the operational and extremes, typhoon modelling and climate assessment.
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Coastal modelling for eTheKwini Muncipality
South Africa, 2018 - present
Positions held: senior coastal expert
• Main project features: developing nearshore hydrodynamic and wave models for the Durban (South Africa) coastal area and embedding the models in an operational warning and data management system (Delft-FEWS).
• Activities performed: hydrodynamic modelling and providing training and hands-on modelling advice to engineers of eTheKwini Municipality.
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Mandai mangrove park Singapore
Singapore, 2019 - 2020
Positions held: senior modeller
• Main project features: Numerical modelling of hydrodynamic changes, sediment dispersion and the ecological connectivity in relation to the development of a new nature park.
• Activities performed: project management, leading hydrodynamic, eco-connectivity and sediment modelling teams, overall reporting.
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Metocean database for the offshore waters of Abu Dhabi
United Arab Emirates, 2009, 2012, 2017, 2020
Positions held: project manager and metocean expert
• Main project features: setup and subsequent updates of a digital metocean database covering Abu Dhabi offshore oil and gas fields. The metocean data included in the database can be directly used for design of offshore infrastructure.
• Activities performed: data analyses, hydrodynamic modelling, assessment of the operational and extremes, extensive validation and setup of database and user interface.
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Al Faw Port
Iraq, 2011 - 2012
Positions held: team leader hydrodynamics and waves
• Main project features: development of detailed hydrodynamic, wave and sediment models as input to the design and impact of the planned Al Faw port in Iraq.
• Activities performed: leading the development of regional and detailed 3D hydrodynamic and wave models for the Al Faw port.
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Lake Kivu
Rwanda, 2017 - 2020
Positions held: project manager and hydrodynamic expert
• Main project features: study on water levels, waves, deep currents and mixing processes in Lake Kivu, a low-dynamic 500 m deep lake with dissolved methane and carbon dioxide, by developing a 3D hydrodynamic model and validation against new field measurements.
• Activities performed: project management, modelling and training.
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Regional Risk Reduction Initiative - British Virgin Islands (BVI)
British Virgin Islands, 2011 - 2012
Positions held: senior modeller
• Main project features: development of a set of hydrodynamic models for the modelling of historic and synthetic hurricanes in the Caribbean to develop risk maps in the framework of the OCT’s Regional Risk Reduction Initiative (R3I).
• Activities performed: analyses of hurricane tracks, setup and calibration of hydrodynamic models, running historic and synthetic hurricane simulations, reporting and workshops.
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Mississippi Coastal Improvement Program (MsCIP)
United States, 2011
Positions held: team leader hydrodynamics
• Main project features: numerical modelling study to establish the knowledge and evaluate consequences of implementing the Mississippi Coastal Improvements Program (MsCIP) to return the sediment budget of the Mississippi Barrier Island system to the state before Hurricane Katrina hit the south coast of the US.
• Activities performed: leading the setup and calibration of the hydrodynamic model.
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Mahakam delta metocean conditions
Indonesia, 2009 - 2010
Positions held: project manager and senior modeller
• Main project features: assessment of metocean conditions in the complex intertidal Mahakam Delta, East-Kalimantan, Indonesia.
• Activities performed: setup and calibration of hydrodynamic and wave models covering complex delta and offshore areas of Mahakam Delta, assessment of metocean design conditions.
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Rapid Assessment of Tsunami Offshore Propagation and Inundation with D-FLOW Flexible Mesh and SFINCS for the 2011 Tohoku Tsunami in Japan.
Björn R. Röbke, Tim Leijnse, Gundula Winter, Maarten van Ormondt, Joana van Nieuwkoop and Reimer de Graaff, 2021. Journal of Marine Science and Engineering (J. Mar. Sci. Eng. 2021, 9, 453).
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3D modelling of Lake Kivu: horizontal and vertical flow and temperature structure under spatially variable atmospheric forcing.
Wouter Kranenburg, Meinard Tiessen, Jelmer Veenstra, Reimer de Graaff, Rob Uittenbogaard, Damien Bouffard, Gaetan Sakindi, Augusta Umutoni, Jonas van de Walle, Wim Thiery, 2020. Journal of Great Lakes Research
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Modelling of a Thermal Discharge in an Ice-covered Estuary in Finland.
R. de Graaff, Lindfors, A., De Goede, E., K. Rasmus, k., Morelissen, R., 2015. ATC 22521. Arctic Technology Conference, Copenhagen, Denmark.
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Three-dimensional hydro-environmental characterisation and modeling of the Northern Arabian Gulf.
Tanuspong Pokavanich, Yousef Alosairi, Reimer de Graaff, Robin Morelissen, Wilbert Verbruggen, Kholood Al-Refail, Altaf Taqi, Turki Al-Said, 2014. Coastal Engineering Proceedings 1(34):41
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Modelling of ice growth and transport on a regional scale, with application to fountain lake, Minnesota, USA.
E. de Goede, Graaff, R. de, Wagner, T., Sheets, B. , 2014. Proceedings of the 33th International Conference on Ocean, Offshore and Arctic Engineering, ICONE14. OMAE2014-24002 San Francisco, 2014.
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Extreme value analysis in typhoon prone areas: case study of the Pearl River Estuary, Hong Kong.
E. Moerman, R. de Graaff, J. Lima de Rego, D. Vatvani., 2014. IAHR 2015 (extended abstract for presentation).
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Setting a new standard for metocean databases
R. de Graaff, D. Majumdar, H. Awda, S. Caires, Z. Peng, E. Moerman, 2012. Offshore Technology Conference (OTC), Houston, 2012
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Extreme still water levels
S. Caires, F. Diermanse, D. Dillingh and R. de Graaff, 2007. 10th International workshop on wave hindcasting and forecasting. Hawaii, 2007
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Modelling of wave damping at Guyana mud coast.
J.C. Winterwerp, R.F. de Graaff, J. Groeneweg, A.P. Luijendijk, 2005. Coastal Engineering 54(3):249-261.
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Assessment methodology for outfall designs; an integrated recirculation, water quality and ecology approach.
M.B. de Vries, R.F. de Graaff, R.A.H.A. Thabet and J.W.M. Wijsman, 2002. Euromed 2002, Sharm El Sheick, Egypt.
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Estimation of current velocities in the final closure gap of sea dike.
Jo, J.H. and R.F. de Graaff, 2002. ICID 2002, Canada
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Recirculation of temperature and salinity from a plant located inside a lagoon
Thabet, R.A.H.A., R.F. de Graaff, K. Ramadan and Y. M. Abbas, 2001. International Desalination Association, Bahrain
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Artificial island in the North Sea and options for coastal development.
Stive, M.J.F., Dijkman, J.P.M., Baan, P.J.A., Villars, M.T. and Graaff, R.F. de, 1998.Oceanology International 98, Brighton, UK
Activities
2020 - present | Member of the Deltares tsunami expert group | Co-initiator and member of the Deltares’ expert team on tsunami modelling |
2016 - 2016 | Participant in Stakeholder Workshop to Implement an Impact-based Forecast and Warning Service in Maldives at the initiative of the World Meteorological Organisation (WMO, 26-28 Sep 2016) | Participation in workshop and presenting technologies and modeling for providing objective risk-impact assessments |
2013 - present | Member of the Dutch Artic Circle | The Dutch Arctic Circle is an initiative to inform and discuss polar initiatives between Dutch ministries, industry, universities and research institutes |
2012 - present | Member of the Deltares ice modelling expert group | Co-initiator and member of the Deltares’ expert team on ice modelling |