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Zheng, Y.; Zhang, R.; Bourassa, M.A. | ||||
| Title | Impact of East Asian Winter and Australian Summer Monsoons on the Enhanced Surface Westerlies over the Western Tropical Pacific Ocean Preceding the El Niño Onset | Type | $loc['typeJournal Article'] | ||
| Year | 2014 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 27 | Issue | 5 | Pages | 1928-1944 |
| Keywords | Atmospheric circulation; Forcing; Dynamics; Monsoons; Wind | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 155 | ||
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| Author |
Zhu, J.; Huang, B.; Wu, Z. | ||||
| Title | The Role of Ocean Dynamics in the Interaction between the Atlantic Meridional and Equatorial Modes | Type | $loc['typeJournal Article'] | ||
| Year | 2012 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 25 | Issue | 10 | Pages | 3583-3598 |
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 251 | ||
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| 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 | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1106 | ||
| Permanent link to this record | |||||
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