High-resolution modeling of the mean flow and meso-scale eddy variability around the Grand Banks of Newfoundland

Verfasser / Beitragende:
[Li Zhai, Youyu Lu, Simon Higginson, Fraser Davidson, Frédéric Dupont, François Roy, Jérôme Chanut, Gregory Smith]
Ort, Verlag, Jahr:
2015
Enthalten in:
Ocean Dynamics, 65/6(2015-06-01), 877-887
Format:
Artikel (online)
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024 7 0 |a 10.1007/s10236-015-0839-5  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10236-015-0839-5 
245 0 0 |a High-resolution modeling of the mean flow and meso-scale eddy variability around the Grand Banks of Newfoundland  |h [Elektronische Daten]  |c [Li Zhai, Youyu Lu, Simon Higginson, Fraser Davidson, Frédéric Dupont, François Roy, Jérôme Chanut, Gregory Smith] 
520 3 |a 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. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Grand Banks of Newfoundland  |2 nationallicence 
690 7 |a Ocean circulation  |2 nationallicence 
690 7 |a Meso-scale eddy  |2 nationallicence 
690 7 |a Kinetic energy  |2 nationallicence 
690 7 |a North Atlantic current  |2 nationallicence 
690 7 |a Regional ocean model  |2 nationallicence 
700 1 |a Zhai  |D Li  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
700 1 |a Lu  |D Youyu  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
700 1 |a Higginson  |D Simon  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
700 1 |a Davidson  |D Fraser  |u Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, A1C 5X1, St. John's, NL, Canada  |4 aut 
700 1 |a Dupont  |D Frédéric  |u Meteorological Service of Canada, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
700 1 |a Roy  |D François  |u Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
700 1 |a Chanut  |D Jérôme  |u Mercator-Ocean, Parc Technologique du Canal, Ramonville St-Agne, France  |4 aut 
700 1 |a Smith  |D Gregory  |u Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
773 0 |t Ocean Dynamics  |d Springer Berlin Heidelberg  |g 65/6(2015-06-01), 877-887  |x 1616-7341  |q 65:6<877  |1 2015  |2 65  |o 10236 
856 4 0 |u https://doi.org/10.1007/s10236-015-0839-5  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10236-015-0839-5  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zhai  |D Li  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Lu  |D Youyu  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Higginson  |D Simon  |u Bedford Institute of Oceanography, Fisheries and Oceans Canada, B2Y 4A2, Dartmouth, NS, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Davidson  |D Fraser  |u Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, A1C 5X1, St. John's, NL, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dupont  |D Frédéric  |u Meteorological Service of Canada, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Roy  |D François  |u Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chanut  |D Jérôme  |u Mercator-Ocean, Parc Technologique du Canal, Ramonville St-Agne, France  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Smith  |D Gregory  |u Meteorological Research Division, Environment Canada, 2121 TransCanada Highway, H9P 1J3, Dorval, QC, Canada  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Ocean Dynamics  |d Springer Berlin Heidelberg  |g 65/6(2015-06-01), 877-887  |x 1616-7341  |q 65:6<877  |1 2015  |2 65  |o 10236