Karina Bakkeløkken Hjelmervik

Professor
Fakultet for teknologi, naturvitenskap og maritime fag
Institutt for maritime operasjoner
Campus Vestfold (D3-70)
Karina Hjelmervik has been employed at the university college since June 2009. She has a phd in fluid mechanics from University of Oslo and a master degree in oceanography from University of Bergen. She is involved in several R&D projects, supervises students on all levels, and do research on fluid mechanics.

Ansvarsområder

  • Numerical modelling and simulations of water currents and waves
  • Validation of numerical results
  • Wave-current interactions
  • Oceanographic climatology
  • Teaching and supervising
  • Challenging mathematical equations

Kompetanse

  • PhD in Fluid Mechanics,
    "Wave-current interactions in coastal tidal currents". Department of Mathematics, University of Oslo, Norway. June 2009
  • Cand. Scient. in Oceanography,
    "On Cold Carbon Dioxide Droplets in Sea Water" (in Norwegian),
    Department of Geophysics, University of Bergen, Norway
  • Cand. Mag. in Science,
    Faculty of Science, University of Bergen, Norway

CV

R & D projects

2017 – 2021 (4.18 MNOK)
Reliable and accessible ocean forecasts for Oslo fjord (FjordOs II)
My role: initiator, project leader, researcher, and supervisor
In cooperation with The Norwegian Coastal Administration, Norwegian Meteorological Institute, Norwegian Institute for Water Research, Vestfold and Østfold county government, Norwegian Defence Research Establishment, Kongsberg Maritime and ExxonMobil

2016 (0.4 MNOK)
Innovation centre for tidal power station in the Svelvik current
My role: researcher, supervisor, and in-house project leader
In cooperation with Svelvik kommune, Norwegian Institute for Water Research and Papirbredden Innovasjon

2015 – 2016  (0.4 MNOK)
Safety and environmental awareness in the Oslo fjord sea transport
- Improved simulator training with knowledge of ocean currents

My role: initiator, researcher, and supervisor
In cooperation with Kongsberg Maritime AS

2015 – 2016  (9.17 MNOK)
Electric Compact Stern Drive
My role: researcher, supervisor, and coordinator
In cooperation with Nodin Innovation, OXIS (UK), Elaphe (Slovenia)

2014 – 2015  (0.4 MNOK)
Detection of legionella using micro- and nanotechnology 
My role: initiator, researcher, and supervisor
In cooperation with IMST (HBV), Unilabs Laboratoriemedisin AS

2014 – 2016 (5.4 MNOK)
Integrated optimizations of pipes and treatment plants including monitoring, modelling, and management of financial and economical savings (Regnbyge 3M)     
My role: initiator and researcher
In cooperation with Drammen kommune, UMB, Rosim, MET, Oslo kommune, Nivus GmbH (Germany), NTNU, Doscon, HBV, HiØ, NIVA, Water Research Centre plc (Great Britain)

2013 – 2016 (8.3 MNOK)
New Oslofjord model – for prediction of currents, water level, and hydrography (FjordOs)
My role: initiator, project leader, researcher, and supervisor
In cooperation with MET, NIVA, NIVA, Fylkeskommune in Vestfold, Østfod og Buskerud, Kystverket, ExxonMobil, Agnes AB Miljøkonsulent, FFI, and Havnealliansen

2013 (0.2 MNOK)
Adjustable oil boom – Tank tests
My role: researcher, supervisor, and contact person (contract)
In cooperation with Rygg International AS

2012 – 2014 (2.1 MNOK)
Bioinspired design of propeller and underwater housing for electric propulsion and manoeuvring of leisure boats
My role: initiator and researcher
In cooperation with Engbo Innovation AS and Technomek

2012 – 2013 (0.2 MNOK)
Adjustable oil boom – Simple experiments and calculations
My role: researcher, supervisor, and contact person (contract)
In cooperation with Rygg International AS

2012 – 2013 (0.4 MNOK)
Cleaner Oslofjord with innovative and holistic approach for pollution reduction (ROMIO)
My role: initiator and researcher
In cooperation with UMB, NIVA, Aqua Rosim AS

2011 – 2012 (0.4 MNOK)
Currents in the Oslofjord - Where does discharge end up?
My role: initiator, project leader, and researcher
In cooperation with MET, HIBU, and FFI

2010 – 2011 (0.2 MNOK)
Simulations of water movements in a bioreactor
My role: project leader and researcher
In cooperation with Krüger Kaldnes

2010 – 2011 (0.4 MNOK)
Optimization of the Windsea concept
My role: participant
In cooperation with NLI, Force, and Windsim

Refereed International Journals

  1. Hjelmervik, K. & Hjelmervik, K.T. (2019). Detection of oceanographic fronts on variable water depths using empirical orthogonal functions. IEEE Journal of Oceanic Engineering
  2. Hjelmervik, K. & Tyvand, P. (2019). Impact of narrow plates on broader liquid bodies.  Applied Ocean Research 87:247-255
  3. Wild, M., Bring, M., Hoff, L., & Hjelmervik, K. (2019). Characterization of Piezoelectric Material Parameters Through a Global Optimization Algorithm. IEEE Journal of Oceanic Engineering.
  4. Hjelmervik, K., Nazir, S. & Myhrvold, A. (2018). Simulator training of complex tasks: an experimental study. WMU Journal of Maritime Affairs, 1-14
  5. Wild, M., Bring, M., Halvorsen, E., Hoff, L., & Hjelmervik, K. (2018). The challenge of distinguishing mechanical, electrical and piezoelectric losses. The Journal of the Acoustical Society of America, 144(4), 2128-2134.
  6. Hjelmervik, K., Kristensen, N.M., Staalstrøm, A. & Røed, L.P. (2017). A simple approach to adjust tidal forcing in fjord models. Ocean Dynamics, 67:949–958.
  7. Schøyen, H., Hjelmervik, K.B., Wang, H. & Osen, O. (2017). Measuring container port complementarity and substitutability with Automatic Identification System (AIS) Data–studying the inter-port relationships in the Oslo Fjord multi-port gateway region. TransNav, International Journal on Marine Navigation and Safety of Sea Transportation. 11 (2), 79-84.
  8. Staalstrøm, A. & Hjelmervik, K. (2017). The currents in the inlet of the Drammen Fjord. Vann (in Norwegian), 104-115.
  9. Hjelmervik, K. & Tyvand, P.A. (2016). Incompressible impulsive wall impact of liquid cylinders. Journal of Engineering Mathematics, 103(1), 159-171.
  10. Nøland, J., Hjelmervik, K. & Urban, L. (2016). Comparison of thyristor controlled rectification topologies for a 6-phase rotating brushless permanent magnet exciter. IEEE Transactions on Energy Conversion, 31(1), 314-322.
  11. Bouhmala, N., Hjelmervik, K. & Øvergård, K. I. (2015). A Generalized Variable Neighbourhood Search For Combinatorial Optimization Problems. Electronic Notes in Discrete Mathematics, 47, 45-52.
  12. Hjelmervik, K., & Hjelmervik, K. T. (2014). Time-calibrated estimates of oceanographic profiles using empirical orthogonal functions and clustering. Ocean Dynamics, 64(5), 655-665.
  13. Tyvand, P. A., Solbakken, K. M., & Hjelmervik, K. B. (2014). Incompressible impulsive wall impact of liquid bodies. European Journal of Mechanics-B/Fluids.
  14. Hjelmervik, K. T., & Hjelmervik, K. (2013). Estimating temperature and salinity profiles using empirical orthogonal functions and clustering on historical measurements. Ocean Dynamics, 63(7), 809-821.
  15.  Lynge, B. K., Hjelmervik, K., & Gjevik, B. (2013). Storm surge and tidal interaction in the Tjeldsund channel, northern Norway. Ocean Dynamics, 63(7), 723-739.
  16. Bouhmala, N., Hjelmervik, K., & Øvergård, K. I. (2012). Single vs Hierarchical Population-Based Memetic Algorithm for SAT-encoded Industrial Problems: A Statistical Comparison. International Journal of Artificial Intelligence & Applications, 3(6), 57-53.
  17. Hjelmervik, K., & Hjelmervik, K. T. (2012). Demonstration of Comparison Methods for Ocean Model Validation. Open Ocean Engineering Journal, 5, 1-14.
  18. Hjelmervik, K. B., & Trulsen, K. (2009). Freak wave statistics on collinear currents. Journal of Fluid Mechanics, 637, 267-284.

Refereed Conference Proceedings

  1. Hjelmervik, K. & Kristensen, M (2020, May). Drift Patterns in Coastal Areas. GLOBAL OCEANS 2020. IEEE
  2. Hjelmervik, K. & Kristensen, M (2019, June). The Oslo fjord ocean model: communication and applications. OCEANS 2019-Marseille. IEEE
  3. Wild, M., Bring, M., Hoff, L., & Hjelmervik, K. (2018, October). Comparison of Two Models for Power Dissipation and Temperature in Piezoelectric Transducers. In 2018 IEEE International Ultrasonics Symposium (IUS) (pp. 1-4). IEEE.
  4. Hjelmervik, K. & Staalstrøm, A. (2017, June) Test site for in-stream turbines in southern Norway. OCEANS 2017-Aberdeen, IEEE.
  5. Østenstad, P., Hjelmervik, K., Albretsen, J. & Hjelmervik, K.T. (2017, June) Adjusting modelled sound speed profiles for use in sonar operations. OCEANS 2017-Aberdeen, IEEE.
  6. Hjelmervik, K.T., Hjelmervik, K. & Andreassen, L. (2017, June) Detection of oceanographic fronts using empirical orthogonal functions. OCEANS 2017-Aberdeen, IEEE.
  7. Wild, M., Hjelmervik, K., Hoff, L. & Bring M. (2017, June) Characterising piezoelectric material parameters through a 3D FEM and optimisation algorithm. OCEANS 2017-Aberdeen, IEEE.
  8. Osen, O., Hao, W., Hjelmervik, K. & Schøyen, H. (2017, June) Organizing data from industrial internet of things for maritime operations. OCEANS 2017-Aberdeen, IEEE.
  9. Schøyen, H., Hjelmervik, K., Wang, H. & Osen O.L. (2017, June) Measuring container port complementarity and substitutability with Automatic Identification System (AIS) data – Studying the inter-port relationships in the Oslo Fjord multi-port gateway region, International Journal on Marine Navigation and Safety of Sea Transportation, 11 (2), 265-270.
  10. Hjelmervik, K.T., Østenstad, P. & Hjelmervik, K. (2015, June). Assessing acoustic sensitivity to oceanographic variability using climatology. 3rd Underwater Acoustics Conference and Exhibition (UACE2015), Crete, Greece.
  11. Hjelmervik, K., Hjelmervik, K. T., & Østenstad, P. (2015, May). Estimation of oceanographic profiles and climatological regions in the Barents Sea. In OCEANS-Genova, 2015 MTS/IEEE. IEEE.
  12. Hjelmervik, K. & Schøyen, H. (2015, May). Correlation between coastal tides and the speed of commercial vessels. In OCEANS-Genova, 2015 MTS/IEEE. IEEE.
  13. Bouhmala, N., Hjelmervik, K., & Øvergård, K. I. (2013, October). Hybrid of evolutionary algorithm and multilevel paradigm to solve the satisfiability problem. In Industrial Engineering and Systems Management (IESM), Proceedings of 2013 International Conference on (pp. 1-4). IEEE.
  14. Bouhmala, N., Hjelmervik, K., & Øvergård, K. I. (2013, October). Combining an Evolutionary Algorithm With The Multilevel Paradigm For The Simulation Of Complex System. In 27th European Conference on Modeling and Simulation, ECMS (pp. 753-757). IEEE.
  15.  Hjelmervik, K. T., & Hjelmervik, K. (2013, June). Improved estimation of oceanographic climatology using empirical orthogonal functions and clustering. In OCEANS-Bergen, 2013 MTS/IEEE (pp. 1-5). IEEE.
  16. Bouhmala, N., Hjelmervik, K., & Øvergård, K. I. (2012) Improving the Asymptotic Convergence of Memetic Algorithms: The SAT Problem Case Study. 4th International Conference on Evolutionary Computation Theory and Applications, ECTA (pp. 264-266), Barcelona, Spain

Book Chapters

  1. Bouhmala, N., Hjelmervik, K. & Øvergård, K.I. (2018). One level vs multilevel population based memetic algorithm for SAT-encoded industrial problems. In Machine Learning - Advanced Techniques and Emerging Applications, ISBN 978-953-51-5835-6
  2. Hjelmervik, K. & Nordby, S. (2017). Fuel saving in coastal areas – a case study on the Oslo Fjord. In Trends and Challenges in Maritime Energy Management. WMU Studies in Maritime Affairs
  3. Nazir, S. & Hjelmervik, K. (2017). Advance use of training simulator in maritime education and training: A questionnaire study. In International Conference on Applied Human Factors and Ergonomics (pp. 361-371). Springer, Cham.

Researh Papers

  1. Østenstand, P. & Hjelmervik, K. (2018) Innsamling av hydrografiske data i Oslofjorden. FFI-rapport (18/01333).
  2. Hjelmervik, K., Kristensen, N. M., Røed, L. P. & Staalstrøm, A. (2017, June) Evaluation of the FjordOs-model. ISSN 2387-4201, MET-report (11/2017).
  3. Hjelmervik, K., Kristensen, N. M. & Staalstrøm, A. (2016, July) Comparison of simulations and observations in the Oslofjord. ISSN 2387-4201, MET-report (13/2016).
  4. Røed, L. P., Kristensen, N. M., Hjelmervik, K. & Staalstrøm, A. (2016, July) A high-resolution, curvilinear ROMS model for the Oslofjord. ISSN 2387-4201, MET-report (04/2016).
  5. Hjelmervik, K., Nordby, S., and Staalstrøm, A. (2014, November) Simulated tides in the Oslofjord – Three different harbour designs in Moss (in Norwegian). ISBN 978-82-577-6452-4, NIVA-rapport (6717).
  6. Hjelmervik, K. & Trulsen, K. (2008) Current modified nonlinear Schrödinger equations. Preprint, UiO.
  7. Ommundsen, A., Hjelmervik, K. & Gjevik, B. (2008) Tides in Tjeldsund-Ramsund, 1.-3. november 2005. (In Norwegian) Norwegian Defence Research Establishment.
  8. Hjelmervik, K., Ommundsen, A. & Gjevik, B. (2006) Model simulations of tide in Tjeldsundet og Ramsundet. (In Norwegian) Preprint, UiO.
  9. Hjelmervik, K., Ommundsen, A. & Gjevik, B. (2005) Implementation of non-linear advection terms in a high resolution tidal model. Preprint, UiO.

Conference Presentations

  1. Hjelmervik, K & Kristensen, N.M. (2022, March) Coastal currents and drift lanes – examples from the Oslo fjord (Norwegian), DNV Nordic Maritime University Workshop 2022
  2. Hjelmervik, K & Kristensen, N.M. (2021, September) Coastal currents and drift lanes – examples from the Oslo fjord, Forum for framtidas oljevern, Svolvær (Norwegian)
  3. Hjelmervik, K & Kristensen, N.M. (2021, September) Salt in the Oslo fjord, End conference Gyrofri, Moss, Norway (Norwegian)
  4. Hjelmervik, K. & Kristensen, N.M. (2020, October) Drift patterns in coastal areas. IEEE GLOBAL OCEANS 2020, Online Conference
  5. Hjelmervik, K. & Kristensen, N.M. (2020, August) Drift patterns of plastic emissions in coastal areas. The 6th International Conference on Water Resource and Environment (WRE 2020), Online Conference
  6. Hjelmervik, K. B., & Kristensen, N. M. (2019, June). The Oslo fjord ocean model: communication and applicationsIn OCEANS 2019-Marseille (pp. 1-5). IEEE.
  7. Kristensen, N.M., Hjelmervik, K. & Staalstrøm, A. (2018, October) Improved vertical mixing in the Oslofjord Model. Joint Numerical Sea Modelling Group Conference (JONSMOD), Firenze, Italy.
  8. Hjelmervik, K. & Kristensen, N.M (2018, October) Applications of the Oslofjord Model. Joint Numerical Sea Modelling Group Conference (JONSMOD), Firenze, Italy.
  9. Nazir, S. & Hjelmervik, K. (2017, July) Advance use of training simulator in maritime education and training:  A questionnaire study. 8th International Conference on Applied Human Factors and Ergonomics (AHFE 2017), Los Angeles, California, USA.
  10. Schøyen, H., Hjelmervik, K., Wang, H. & Osen O.L. (2017, June) Measuring container port complementarity and substitutability with Automatic Identification System (AIS) data – Studying the Inter-port Relationships in the Oslo Fjord multi-port gateway region. 12th International Conference on Marine Navigation and Safety of Sea Transportation (TransNav), Gdynia, Poland.
  11. Hjelmervik, K. & Staalstrøm, A. (2017, June) Test Site for In-Stream Turbines in Southern Norway. IEEE OCEANS, Aberdeen, England.
  12. Østenstad, P., Hjelmervik, K., Albretsen, J. & Hjelmervik, KT. (2017, June) Adjusting modelled sound speed profiles for use in sonar operations. IEEE OCEANS, Aberdeen, England.
  13. Hjelmervik, K.T., Hjelmervik, K. & Andreassen, L. (2017, June) Detection of oceanographic fronts using empirical orthogonal functions. IEEE OCEANS, Aberdeen, England.
  14. Osen, O., Hao, W., Hjelmervik, K. & Schøyen, H. (2017, June) Organizing Data from Industrial Internet of Things for Maritime Operations. IEEE OCEANS, Aberdeen, England
  15. Wild, M., Hjelmervik, K., Hoff, L. & Bring M. (2017, June) Characterising piezoelectric material parameters through a 3D FEM and optimisation algorithm. IEEE OCEANS, Aberdeen, England.
  16. Schøyen, H., Hjelmervik, K., Wang, H. & Osen, O. (2017, January) Measuring port berth utilisation with Automatic Identification System (AIS) data. International conference on maritime energy management (Marener 2017), Malmö, Sweden.
  17. Hjelmervik, K. & Nordby, S. (2017, January) Fuel saving in coastal areas – a case study in the Oslo Fjord. International conference on maritime energy management (Marener 2017), Malmö, Sweden.
  18. Kristensen, N.M., Røed, L.P., Staalstrøm, A. & Hjelmervik, K. (2016, October) A high resolution ocean model for the Oslofjord. NORCOAST, Geilo, Norway.
  19. Tyvand, P.A. and Hjelmervik, K. (2016, September) Incompressible impact of liquid bodies on plane walls. 11th European Fluid Mechanics Conference (EFMC). Seville, Spain
  20. Hjelmervik, K., Staalstrøm, A., Kristensen, N.M. & Røed, L.P. (2016, May) Adjusting global tidal forcing for use in high-resolution fjord models. Joint Numerical Sea Modelling Group Conference (JONSMOD), Oslo, Norway.
  21. Kristensen, N.M., Røed, L.P., Staalstrøm, A. & Hjelmervik, K. (2016, May) A high resolution ocean model for the Oslo fjord. Joint Numerical Sea Modelling Group Conference (JONSMOD), Oslo, Norway.
  22. Staalstrøm, A., Ledang, A.B., Kristensen, N.M., Røed, L.P. & Hjelmervik, K. (2016, May) Dispersion of land-derived substances in the coastal environment. Joint Numerical Sea Modelling Group Conference (JONSMOD), Oslo, Norway.
  23. Hjelmervik, K.T., Østenstad, P. & Hjelmervik, K. (2015, June) Assessing acoustic sensitivity to oceanographic variability using climatology. 3rd Underwater Acoustics Conference and Exhibition (UACE2015), Crete, Greece.
  24. Hjelmervik, K., Hjelmervik, K.T. & Østenstad, P. (2015, May) Estimation of oceanographic profiles and climatological regions in the Barents Sea. IEEE Oceans, Genova, Italy.
  25. Hjelmervik, K. & Schøyen, H. (2015, May) Correlation between costal tides and the speed of commercial vessels. IEEE Oceans, Genova, Italy.
  26. Hjelmervik, K., Røed, L.P., Kristensen, N.M., Gusdal, Y., Staalstrøm, A., Isachsen, P. & Müller, M. (2014, May) Refined ocean models for the Oslofjord systems. Joint Numerical Sea Modelling Group Conference (JONSMOD), Brussel, Belgium.
  27. Hjelmervik, K.T. & Hjelmervik, K. (2014, February) Sensitivity of sonar performance to oceanographic variability. 37th Scandinavian Symposium on Physical Acoustics, Geilo, Norway.
  28. Hjelmervik, K. & Hjelmervik, K. T. (2013, June) Estimating time-calibrated 3D climatology for ocean model validation. 5th International Workshop on Modeling the Ocean (IWMO), Bergen, Norway.
  29. Hjelmervik, K., Gjevik, B., & Lynge, B. K. (2013, June) Modelling of tides and storm surges in the Tjeldsund channel. 5th International Workshop on Modeling the Ocean (IWMO), Bergen, Norway.
  30. Bouhmala, N., Hjelmervik, K., & Øvergård, K. I. (2013, May) Combining evolutionary algorithm with the multilevel paradigm for the simulation of complex system. 27th European Conference on Modelling and Simulation, Ålesund, Norway.
  31. Hjelmervik, K.T. & Hjelmervik, K. (2013, June) Improved estimation of oceanographic climatology using empirical orthogonal functions and clustering.” IEEE Oceans, Bergen, Norway.
  32. Hjelmervik, K. & Hjelmervik, K. T. (2013, February) Underwater climatology estimates using empirical orthogonal functions and K-means clustering.” 36th Scandinavian Symposium on Physical Acoustics, Geilo, Norway.
  33. Hjelmervik, K. & Hjelmervik, K. T. (2012, May) Classification of water masses using empirical orthogonal functions.” Joint Numerical Sea Modelling Group Conference (JONSMOD), Brest, France.
  34. Hjelmervik, K. & Hjelmervik, K.  T. (2010, October) Ocean model validation methods. Maritime Rapid Environmental Assessment Conference (MREA), Lerici, Italy.
  35. Hjelmervik, K. & Trulsen, K. (2008, August) Extreme waves on current jets – are they freak? Rogue Waves 2008, Brest, France.
  36. Hjelmervik, K. & Trulsen, K. (2008, April) Freak waves on collinear current jets. European General Assembly (EGU), Vienna, Austria.
  37. Hjelmervik, K., Ommundsen, A. & Gjevik, B. (2007, January) Model simulations of tidal currents in Tjeldsundet and Ramsundet, northern Norway. NORMOD, Trondheim.

Invited Presentations

  1. Hjelmervik, K., Kristensen, N.M. & Berger, S. (2020, November) Applications of the FjordOs model. FOU-seminar, Norwegian Coastal Administration, Ålesund
  2. Hjelmervik, K., (2019, March) Mathematics in the Oslofjord, public presentation. Tønsberg and Færder library
  3. Hjelmervik, K., Kristensen, N.M. & Staalstrøm A. (2018, March) The hydrography in the Oslofjord – measurements and temporary results (FjordOs II). Easter meeting, project Gyrofri, Tønsberg
  4. Hjelmervik, K. (2017, June) Selected applications of the FjordOs model. Annual Conference for Regional Research Funds, Horten
  5. Hjelmervik, K. & Kristensen, N.M. (2017, May) The FjordOs project. Seminar and fjord cruise on the environment, Vestfold county government, Husøy
  6. Hjelmervik, K. (2017, March) New model for the Oslofjord. Day seminar - Safety and Environment, Pianc, Horten
  7. Hjelmervik, K. (2016, November) Ocean forecast in the Oslofjord. Meeting in project “Gyrofri”, Sande
  8. Staalstrøm, A. and Hjelmervik, K. (2016, August) Currents in Svelvikstrømmen. Mini seminar – Tidal power station in Svelvikstrømmen, Svelvik
  9. Hjelmervik, K. (2015, December) Changes in circulation pattern in Moss harbour. Board meeting, Moss Harbor, Moss
  10. Hjelmervik, K. (2015, December) Drifting lanes based on the new Oslofjord model. Environment and reconnaissance team, Esso Norway, Tønsberg
  11. Hjelmervik, K. (2015, May) New Oslofjord model – a regional project with possibilities. Årskonferansen for Regionale Forskningsfond, Oslo
  12. Hjelmervik, K.  (2014, October) New Oslofjord model – for prediction of currents, water level, and hydrography. Regional høringskonferanse, Havkonferansen, Tønsberg
  13. Hjelmervik, K. (2013, September) The future of the Oslofjord, public presentation. Horten library
  14. Hjelmervik, K. (2012, June) Currents in the Oslofjord – Where does discharge end up? Board meeting, Oslofjord regional research fund (OFF)
  15. Hjelmervik, K. (2006, November) When water is affected by the moon, sun, and wind. KoMiN – conference for students in mathematics, Trondheim.