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Author  |
Zhao, X.; Zhou, C.; Zhao, W.; Tian, J.; Xu, X. | ||||
| Title | Deepwater overflow observed by three bottom-anchored moorings in the Bashi Channel | Type | $loc['typeJournal Article'] | ||
| Year | 2016 | Publication | Deep Sea Research Part I: Oceanographic Research Papers | Abbreviated Journal | Deep Sea Research Part I: Oceanographic Research Papers |
| Volume | 110 | Issue | Pages | 65-74 | |
| Keywords | Deepwater overflow; Bashi Channel; Volume transport; Spatial structure; Temporal variability | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0967-0637 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 92 | ||
| Permanent link to this record | |||||
| Author |
Zou, S.; Bower, A.; Furey, H.; Susan Lozier, M.; Xu, X. | ||||
| Title | Redrawing the Iceland-Scotland Overflow Water pathways in the North Atlantic | Type | $loc['typeJournal Article'] | ||
| Year | 2020 | Publication | Abbreviated Journal | Nat Commun | |
| Volume | 11 | Issue | 1 | Pages | 1890 |
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| Abstract | Iceland-Scotland Overflow Water (ISOW) is a primary deep water mass exported from the Norwegian Sea into the North Atlantic as part of the global Meridional Overturning Circulation. ISOW has historically been depicted as flowing counter-clockwise in a deep boundary current around the subpolar North Atlantic, but this single-boundary-following pathway is being challenged by new Lagrangian observations and model simulations. We show here that ISOW leaves the boundary and spreads into the interior towards the central Labrador and Irminger basins after flowing through the Charlie-Gibbs Fracture Zone. We also describe a newly observed southward pathway of ISOW along the western flank of the Mid-Atlantic Ridge. The partitioning of these pathways is shown to be influenced by deep-reaching eddies and meanders of the North Atlantic Current. Our results, in tandem with previous studies, call for a revision in the historical depiction of ISOW pathways throughout the North Atlantic. | ||||
| Address | Center for Ocean-Atmosphere Prediction Studies, Florida State University, Tallahassee, FL, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 2041-1723 | ISBN | Medium | ||
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| Funding | strtoupper('3').strtolower('2313002'); strtoupper('P').strtolower('MC7170894') | Approved | $loc['no'] | ||
| Call Number | COAPS @ user @ | Serial | 1105 | ||
| Permanent link to this record | |||||
| Author |
Zou, S.; Lozier, M.S.; Xu, X. | ||||
| Title | Latitudinal Structure of the Meridional Overturning Circulation Variability on Interannual to Decadal Time Scales in the North Atlantic Ocean | Type | $loc['typeJournal Article'] | ||
| Year | 2020 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 33 | Issue | 9 | Pages | 3845-3862 |
| Keywords | Deep convection; Ocean circulation; Thermocline circulation | ||||
| Abstract | The latitudinal structure of the Atlantic meridional overturning circulation (AMOC) variability in the North Atlantic is investigated using numerical results from three ocean circulation simulations over the past four to five decades. We show that AMOC variability south of the Labrador Sea (53°N) to 25°N can be decomposed into a latitudinally coherent component and a gyre-opposing component. The latitudinally coherent component contains both decadal and interannual variabilities. The coherent decadal AMOC variability originates in the subpolar region and is reflected by the zonal density gradient in that basin. It is further shown to be linked to persistent North Atlantic Oscillation (NAO) conditions in all three models. The interannual AMOC variability contained in the latitudinally coherent component is shown to be driven by westerlies in the transition region between the subpolar and the subtropical gyre (40°–50°N), through significant responses in Ekman transport. Finally, the gyre-opposing component principally varies on interannual time scales and responds to local wind variability related to the annual NAO. The contribution of these components to the total AMOC variability is latitude-dependent: 1) in the subpolar region, all models show that the latitudinally coherent component dominates AMOC variability on interannual to decadal time scales, with little contribution from the gyre-opposing component, and 2) in the subtropical region, the gyre-opposing component explains a majority of the interannual AMOC variability in two models, while in the other model, the contributions from the coherent and the gyre-opposing components are comparable. These results provide a quantitative decomposition of AMOC variability across latitudes and shed light on the linkage between different AMOC variability components and atmospheric forcing mechanisms. | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1106 | ||
| Permanent link to this record | |||||
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