Postdoctoral Research Associate
PhD in Physical Oceanography
M.Sc. Climate Physics:
Meteorology and Physical Oceanography
B.Sc. Physics of the Earth System
Meteorology, Oceanography and Geophysics
PhD Thesis
We are studying a current in the North Atlantic which is a continuation of the warm and saline Gulf Stream. Observations in the ocean are still rare which makes a time series in remote places like the subpolar North Atlantic very valuable. Currents in the ocean are important for all of us as they impact the weather and climate. Imagine a current in the ocean as the wind in the atmosphere. It can have a stronger or weaker flow, be warmer or colder, it can stop and even reverse direction.
We use so-called ‘moorings’. They look like a necklace hanging upright in the water column with instruments attached to it, measuring temperature, salinity and velocity. With those observations we hope to get more insight into how the current is changing over time, and whether changes are an effect of climate variability or if they can be linked to climate change.
Field campaigns
- Expedition to the Irminger Sea and Iceland Basin 2022,
AR69-02, RV Neil Armstrong
Responsibilities: mooring work, mooring instrument data recovery, CTD watch, salinometer measurements
- Expedition to the Irminger Sea 2020,
PE473, RV Pelagia
Responsibilities: CTD watch, mooring work
Blog - Expedition to the Labrador Sea 2018,
MSM74, RV Maria S. Merian
Responsibilities: salinometer measurements, CTD watch, mooring work - Expedition to Northern Greenland 2018,
PAMARCMIP, Station North/Villum Research Station
Responsibilities: black carbon measurements on snow, snow pit work
National Geographic Article, New York Times Article - Expedition to the Labrador Sea 2016,
MSM54, RV Maria S. Merian
Responsibilities: CTD calibration, CTD watch, mooring work - Expedition to Tropical Atlantic, 2015
M119, RV Meteor
Responsibilities: salinometer measurements, CTD watch, mooring work
Publications
- Fried, N., Biló, T. C., Johns, W., Katsman, C. A., Fogaren, K. E., Yoder, M. F., ... & de Jong, M. F. (2024), Recent Freshening of the Subpolar North Atlantic Increased the Transport of Lighter Waters of the Irminger Current From 2014 to 2022, Journal of Geophysical Research: Oceans, 129(11). https://doi.org/10.1029/2024JC021184
- Fried, N. , Katsman, C. A., & de Jong, M. F. (2024). Where do the two cores of the Irminger current come from? A Lagrangian study using a 1/10 ocean model simulation. Journal of Geophysical Research: Oceans, 129(10),https://doi.org/10.1029/2023JC020713
- Sanchez-Franks, A., Holliday, N. P., Evans, D. G., Fried, N., Tooth, O. J., Chafik, L., ... & Johnson, H. L. (2024). The Irminger Gyre as a key driver of the Subpolar North Atlantic overturning. Geophysical Research Letters, 51(8), https://doi.org/10.1029/2024GL108457. https://doi.org/10.1029/2024GL108457
- Fu, Y., Lozier, M. S., Biló, T. C., Bower, A. S., Cunningham, S. A., Cyr, F., Fried,N. ... & Yashayaev, I. (2023). Seasonality of the Meridional Overturning Circulation in the subpolar North Atlantic. Communications earth & environment, 4(1), 181., https://doi.org/10.1038/s43247-023-00848-9
- Desbruyères, D. G., Bravo, E. P., Thierry, V., Mercier, H., Lherminier, P., Cabanes, C., Biló, T.C., Fried, N., De Jong, M. F. (2022). Warming‐to‐cooling reversal of overflow‐derived water masses in the Irminger Sea during 2002‐2021. Geophysical Research Letters, e2022GL098057. https://doi.org/10.1029/2022GL098057
- Fried, N., & Femke de Jong, M. (2022). The role of the Irminger Current in the Irminger Sea northward transport variability. Journal of Geophysical Research: Oceans, 127, e2021JC018188. https://doi.org/10.1029/2021JC018188
- Li, F.; Lozier, M. S.; Bacon, S.; Bower, A. S.; Cunningham, S. A.; de Jong, M. F.; deYoung, B.; Fraser, N.; Fried, N.; Han, G.; Holliday, N. P.; Holte, J.; Houpert, L.; Inall, M. E.; Johns, W. E.; Jones, S.; Johnson, C.; Karstensen, J.; Le Bras, I. A.; Lherminier, P.; Lin, X.; Mercier, H.; Oltmanns, M.; Pacini, A.; Petit, T.; Pickart, R. S.; Rayner, D.; Straneo, F.; Thierry, V.; Visbeck, M.; Yashayaev, I.; Zhou, C. (2021). Subpolar North Atlantic western boundary density anomalies and the Meridional Overturning Circulation. Nature Comm. 12: 3002. https://hdl.handle.net/10.1038/s41467-021-23350-2
- de Jong, M.F.; de Steur, L.; Fried, N.; Bol, R.; Kritsotalakis, S. (2020). Year‐round measurements of the Irminger Current: Variability of a two‐core current system observed in 2014–2016. JGR: Oceans 125(10). https://doi.org/10.1029/2020jc016193
Recent Conferences
| 12/2021 | OOI at AGU Fall Meeting 2021, OOI and OSNAP in the North Atlantic |
| 04/2023 | EGU General Assembly 2023, online, OS1.5 The North Atlantic: natural variability and global change |
| 05/2022 | EGU General Assembly 2022, in person, OS1.7 The North Atlantic: natural variability and global change, Vienna, Austria |
| 10/2021 | BBOS Autumn Symposium 2021, Soesterberg, Netherlands |
| 04/2021 | EGU General Assembly 2021, online, OS1.2 The North Atlantic: natural variability and global change |
| 11/2023 | BBOS Autumn Symposium 2023, NIOZ Texel, Netherlands |
| 07/2023 | Clivar workshop on Meeting AMOC Observations need in a changing climate, Hamburg, Germany |
| 07/2023 | P05a – The Meridional Overturning, IUGG-IAPSO meeting, Berlin, Germany |
| 10/2022 | BBOS Autumn Symposium, Oranjewoud, Netherlands |
| 02/2020 | Ocean Sciences Meeting, PC24A – Atlantic Meridional Overturning Circulation: An Ongoing Challenge lll Posters, San Diego, California, U.S. |
| 10/2019 | BBOS Autumn Symposium 2019, Den Bosch, Netherlands |
Teaching at the Univeristy of Münster
- Lecture Climatology (winter semester 24/25)
- Exercise Climatology (winter semester 24/25, summer semester 2025)
- Seminar Climate Geography (summer semester 2025)