Articles | Volume 8, issue 3
Earth Syst. Dynam., 8, 801–815, 2017
https://doi.org/10.5194/esd-8-801-2017

Special issue: Multiple drivers for Earth system changes in the Baltic Sea...

Earth Syst. Dynam., 8, 801–815, 2017
https://doi.org/10.5194/esd-8-801-2017

Research article 07 Sep 2017

Research article | 07 Sep 2017

Low-frequency variability in North Sea and Baltic Sea identified through simulations with the 3-D coupled physical–biogeochemical model ECOSMO

Ute Daewel and Corinna Schrum

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Cited articles

Alheit, J., Möllmann, C., Dutz, J., Kornilovs, G., Loewe, P., Mohrholz, V., and Wasmund, N.: Synchronous ecological regime shifts in the central Baltic and the North Sea in the late 1980s, ICES J. Mar. Sci., 62, 1205–1215, https://doi.org/10.1016/j.icesjms.2005.04.024, 2005.
Backhaus, J. O. and Hainbucher, D.: A Finite Difference General Circulation Model for Shelf Seas and Its Application to Low Frequency Variability on the North European Shelf, in: Three-Dimensional Models of Marine and Estuarine Dynamics, edited by: Nihoul, J. C. J. and Jamart, B. M., Elsevier Oceanography Series, 221–244, 1987.
Barthel, K., Daewel, U., Pushpadas, D., Schrum, C., Årthun, M., and Wehde, H.: Resolving frontal structures: on the payoff using a less diffusive but computationally more expensive advection scheme, Ocean Dynam., 62, 1457–1470, https://doi.org/10.1007/s10236-012-0578-9, 2012.
Beare, D. J., Burns, F., Greig, A., Jones, E. G., Peach, K., Kienzle, M., McKenzie, E., and Reid, D. G.: Long-term increases in prevalence of North Sea fishes having southern biogeographic affinities, Mar. Ecol. Prog. Ser., 284, 269–278, https://doi.org/10.3354/meps284269, 2004.
Beaugrand, G.: The North Sea regime shift: Evidence, causes, mechanisms and consequences, Prog. Oceanogr., 60, 245–262, https://doi.org/10.1016/j.pocean.2004.02.018, 2004.
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Short summary
Processes behind observed long-term variations in marine ecosystems are difficult to be deduced from in situ observations only. By statistically analysing a 61-year model simulation for the North Sea and Baltic Sea and additional model scenarios, we identified major modes of variability in the environmental variables and associated those with changes in primary production. We found that the dominant impact on changes in ecosystem productivity was introduced by modulations of the wind fields.
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