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Raymond Nepstad

Senior Research Scientist

Raymond Nepstad

Senior Research Scientist

Raymond Nepstad
Phone: 934 01 761
Department: Environment and New Resources
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1721059

In oil spill models, vertical mixing due to turbulence is commonly modelled by random walk. If the eddy diffusivity varies with depth, failing to take the derivative of the diffusivity into account in the random walk scheme will lead to incorrect results. Depending on the diffusivity profile, the re...

Authors Nordam Tor Nepstad Raymond Litzler Emma Röhrs Johannes
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1699524

Lagrangian particle models are used for many applications in the ocean sciences, including transport modelling of oil spills, fish eggs and larvae, plastics, and sediment particles. In the context of oil spill modelling, there are numerous papers discussing entrainment of surface oil by breaking wav...

Authors Nordam Tor Kristiansen Ruben Nepstad Raymond Röhrs Johannes
Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1698274

Regular discharges of produced water from the oil and gas industry represents the largest direct discharge of effluent into the marine environment worldwide. Organic compound classes typically reported in produced water include saturated hydrocarbons, monoaromatic and polyaromatic hydrocarbons (MAHs...

Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1676956

As petroleum development and other activities move further north, the potential for oil spills in ice-covered waters is of great concern. As a tool for contingency planning and forecasting during response, oil spill models play a key role. With the development of new, high-resolution coupled ice-oce...

Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1673122

Authors Olsvik Pål Asgeir Farkas Julia Jager Tjalling Ciesielski Tomasz Maciej Altin Dag Hansen Bjørn Henrik Øverjordet Ida Beathe Kristensen Torstein Svendheim Linn Hjelmeland Skancke Jørgen Nepstad Raymond Jenssen Bjørn Munro Ihle Christian Davies Emlyn John Malzahn Arne
Year 2018
Type Conference lecture and academic presentation
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1601251

Authors Farkas Julia Jager Tjalling Ciesielski Tomasz Maciej Hansen Bjørn Henrik Kristensen Torstein Altin Dag Skancke Jørgen Nepstad Raymond Jenssen Bjørn Munro Ihle Christian Davies Emlyn John Malzahn Arne Øverjordet Ida Beathe Olsvik Pål Asgeir
Year 2018
Type Conference lecture and academic presentation
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1600722

Atlantic cod (Gadus morhua) is a commercially important species, and therefore, understanding the influence of environmental factors and anthropogenic stressors on its early life stages is of considerable relevance. In this contribution, we apply a simple and generic energy-budget framework (DEBkiss...

Year 2018
Type Journal publication