caa a22 4500 605546495 CHVBK 20210128100941.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10236-015-0839-5 doi (NATIONALLICENCE)springer-10.1007/s10236-015-0839-5 High-resolution modeling of the mean flow and meso-scale eddy variability around the Grand Banks of Newfoundland [Elektronische Daten] [Li Zhai, Youyu Lu, Simon Higginson, Fraser Davidson, Frédéric Dupont, François Roy, Jérôme Chanut, Gregory Smith] The mean flow and meso-scale eddy variability in the region around the Grand Banks of Newfoundland (GBN) are quantified by analyzing surface drifter observations, mean dynamic topography (MDT), along-track satellite altimeter observations, and the solutions of two high-resolution ocean models. By increasing the horizontal resolution from 6.5km (CREG12) to 2.2km (GBN36), the modeled mean kinetic energy (MKE) decreases and the eddy kinetic energy (EKE) increases in the study area. GBN36 obtains the MKE of surface geostrophic currents and total currents similar to that derived from MDT and drifter data, whereas CREG12 overestimates these quantities by 40-53%. CREG12 and GBN36 underestimate the EKE of surface geostrophic currents by 46 and 30%, respectively, with respect to the EKE derived from along-track altimeter data. The models do not reproduce the strong eddy activity in the Gulf Stream and its downstream region, possibly related to a northward shift of the Gulf Stream position by 0.5° in latitude compared with observations. Both models obtain wavenumber spectra of sea level anomaly in close agreement with the spectrum derived from along-track altimeter data, with a slope of −5 at wavelengths near 100km on logarithmic spectral density scales. Springer-Verlag Berlin Heidelberg, 2015 Grand Banks of Newfoundland nationallicence Ocean circulation nationallicence Meso-scale eddy nationallicence Kinetic energy nationallicence North Atlantic current nationallicence Regional ocean model nationallicence Zhai Li Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut Lu Youyu Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut Higginson Simon Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut Davidson Fraser Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, A1C 5X1, St. John's, NL, Canada aut Dupont Frédéric Meteorological Service of Canada, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut Roy François Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut Chanut Jérôme Mercator-Ocean, Parc Technologique du Canal, Ramonville St-Agne, France aut Smith Gregory Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut Ocean Dynamics Springer Berlin Heidelberg 65/6(2015-06-01), 877-887 1616-7341 65:6<877 2015 65 10236 https://doi.org/10.1007/s10236-015-0839-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10236-015-0839-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhai Li Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut NATIONALLICENCE 700 1- Lu Youyu Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut NATIONALLICENCE 700 1- Higginson Simon Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada aut NATIONALLICENCE 700 1- Davidson Fraser Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, A1C 5X1, St. John's, NL, Canada aut NATIONALLICENCE 700 1- Dupont Frédéric Meteorological Service of Canada, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut NATIONALLICENCE 700 1- Roy François Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut NATIONALLICENCE 700 1- Chanut Jérôme Mercator-Ocean, Parc Technologique du Canal, Ramonville St-Agne, France aut NATIONALLICENCE 700 1- Smith Gregory Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada aut NATIONALLICENCE 773 0- Ocean Dynamics Springer Berlin Heidelberg 65/6(2015-06-01), 877-887 1616-7341 65:6<877 2015 65 10236