Mulige prosjekter til masteroppgaver
Measuring ocean currents with an autonomous vessel
Near surface ocean current data are important for ocean trajectory predictions (e.g. for salmon lice, marine plastic and oil pollution). MET Norway is involved in a project led by Aanderaa Xylem where the Offshore Sensing SailBuoy (www.sailbuoy.no) has been equipped with an Acoustic Doppler Current Profiler (ADCP) for ocean current profiles near the surface. The project is sponsored by the Norwegian Research Council. The SailBuoy is world leading technology developed in Bergen and it was the first autonomous vessel to cross the Atlantic. This pioneering project will provide data that can be used for ocean model validation, for data assimilation and for comparison with other measurements such as permanent rigs and HF radars. The SailBuoy will carry out cruises along the coast of mainland Norway and hopefully on Svalbard. Publication of results in an international journal is highly likely.
Contact: Lars R. Hole (email@example.com)
Stormflo i Sognefjorden
Sjøkartverket har en unik måleserie av vannstand på flere posisjoner i Sognefjorden. Målingene begynte i juli 2018, og pågår fremdeles. Det betyr at disse måleseriene dekker de to store stormflo episodene vi hadde i vinter 2019-2020, og vil gi ny innsikt i hvordan vannstand i Sognefjorden varierer med forskjellige pådrag fra atmosfære, tidevann og ferskvannsavrenning. Havforskingen har også strømmålere ute som dekker de samme episodene, og disse dataene vil være tilgjengelige for en Master student. Havforskingen kan også hjelpe til med modelleringsdata. Studenten får dermed tilgang til veiledning fra to av våre institusjoner som ansetter mange oseanografer: Sjøkartverket og Havforskingsinstituttet.
Overturning in the Nordic Seas
We offer several topics for MSc projects in physical oceanography through the "Overturning in the Nordic Seas" group (OVENS). The overall objectives of the group are to better understand the ocean-atmosphere interaction that leads to dense water formation in the Nordic Seas and its importance to the global overturning circulation. Suggested topics are
- investigating deep convection in the Greenland and Iceland Seas using moored measurements and a simple mixed-layer model, or
- investigating the properties of a dense water current along the Iceland slope using hydrographic observations, or
- investigating the gyre circulation in the Iceland Sea using glider data, or
- investigating air-sea-ice interaction in the marginal ice zone east of Greenland.
Contact: Kjetil Våge
Antarctic Polar oceanography
Shelf break exchange in the Weddell Sea
Why do warm water enter the continental shelf during summer but not in winter? The cross shelf break flow will be studied using results from laboratory experiments and/or numerical modelling supported by observations
Hydrography near an ice shelf front
How does the hydrography near an ice shelf front change throughout the year / from year to year? The hydrography will be studied using moored instrumentation and CTD profiles
Contact: Elin Darelius
Ocean Mixing Processes
We conduct observation-based research on ocean mixing processes. Typically data sets are already collected and available for analysis. But we also try to integrate the student in a research cruise for collecting own data for the Master's study.
- investigate the hydrography and mixing in Førdefjorden (using the high-quality data collected during the fjord oceanography class)
- internal wave field properties inferred from moored observations near Yermak Plateau, Arctic Ocean
- eddies in the Lofoten Basin (using data collected under the PROVOLO project)
- frontal processes across the Mohn Ridge inferred from shipboard and Seaglider observations (using data collected under the PROVOLO project)
Contact: Ilker Fer
Arctic Polar Oceanography and sea ice
We offer topics on the longer term changes and variability of sea ice and oceanography in the Arctic Ocean, using a mix of climate models, process models,and observations. The existing climate model simulations, through cooperation with the Climate group using the Norwegian Earth System Model (NorESM), can be used for evaluation and analysis.
- Barents Sea Ice Cover variability the last 450 years
- Rapid Ice Loss events in NorESM simulations
Contact: Lars Henrik Smedsrud
Circulation in the Red Sea
Sanganeb is an atoll in the Red Sea about ten nautical miles from land, not far from Port Sudan. Seasonal measurements of temperature and salinity taken with a CTD along the route between Port Sudan and Sanganeb will be related with circulation estimates given by a numerical model. This project involves evaluation of both observational and model data, and is about a very interesting and special part of the world ocean.
A wave energy climatology for Norwegian waters.
The wave energy flux is the relevant quantity for estimating the potential for wave energy production. Using the 10-km resolution hindcast archive NORA10 which spans the period 1957 to present, the student will investigate the wave energy potential in Norwegian waters. The NORA10 archive was developed and is maintained by the Norwegian Meteorological Institute and is the authoritative reference data set for historical wind and wave climate in the Norwegian Sea, the North Sea and the BarentsSea.
Supervisor: Øyvind Breivik (firstname.lastname@example.org)
Wave effects in the upper ocean.
The ocean surface boundary layer is influenced by the presence of surface waves. The waves affect the ocean through wave breaking, modification of the momentum flux from the atmosphere (wind stress) and through the Stokes drift, a second-order wave effect that causes material transport. The NEMO model has recently been set up on a regional scale and can be used to quantify the impact of the wave field on a high-resolution ocean model. Relevant questions are how the upwelling and the mixing is affected by waves in the North Sea. Good coding skills are required.
Supervisors: Øyvind Breivik (email@example.com) and Lichuan Wu (SMHI)
Bølgeenergipotensiale fra Runde bølgekraftverk
Analyse av to år med simuleringer fra bølgemodellen SWAN som er kjørt for Runde ved Runde Miljøsenter og Meteorologisk institutt. Oppgradere modellen med finere oppløsning. Waves4Power http://www.waves4power.com/projects/ er igang med å installere deres prototype WaveEL ved Runde. Analysen av bølgedata kan ha som formål å beregne bølgeenergien for denne lokalitet, og bølgeklimaet i området. Artikkel vedlagt. Det er mulighet for å sitte på Runde i en periode.
Veileder: Birgitte Furevik
Vindklima i norske fjorder beregnet med syntetisk aperturradar (SAR):
SAR-bilder leverer observasjoner av havoverflaten som kan omdannes til detaljerte vindfelter. Vindobservasjoner er mangelvare i kystområder og oppgaven går på å analysere vinden i norske fjorder med SAR, in situ-observasjoner og den operasjonelle værvarslingsmodellen AROME.
Veileder: Birgitte Furevik (firstname.lastname@example.org)
Geophysical modelling of real oil spills in the Gulf of Mexico.
A generic ocean trajectory framework (OpenDrift) has recently been developed at the Norwegian Meteorological Institute. Through partners in Florida we have obtained satellite observations (shape files) describing the development of a real spill from the Taylor pipeline in the Gulf of Mexico over several days. Ocean surface drifter data from the region are also available. A master student is sought to run experiments with the Open Oil module using various parameterizations and to compare with observations for analysis. Forcing will be provided from a high resolution ocean model and atmospheric and wave models from the European Center for Medium Range Weather Forecasting (ECMWF). The project will involve collaboration with the University in Miami and other US partners, and travels to Florida can be expected. The student should be confident in Python programming.
Supervisor: Lars Robert Hole (email@example.com)
Storm surge modeling in Vietnam using ROMS and analytical models.
The Norwegian Meteorological Institute (MET Norway) collaborates with the National Hydro-Meteorological Service of Vietnam (NHMS) on a capacity building project sponsored by the Norwegian government. The main purpose of the project is geohazard disaster prevention. NHMS plan to upgrade their ocean model system to the Regional Ocean Models System (ROMS) (http://myroms.org). MET Norway uses ROMS in a nested configuration from 20km (entire Arctic Ocean) to 4km to 800m(the Norwegian coast). This model system also acts as input for the oil drift and search and rescue models. In this master project we propose to use a simple 2D setup of ROMS and compare with tidal observation in Vietnam. Vietnam currently has 17 operational tidal stations with hourly or 6 hourly observations. The data can also be compared with analytical formulas. The work will involve numerical simulations and statistical analysis. The student will collaborate with scientists at MET Norway and NHMS and can also expect to travel to Vietnam.
Supervisor: Lars R. Hole (firstname.lastname@example.org) at MET Norway, Bergen.