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Xu, X.; Bower, A.; Furey, H.; Chassignet, E.P. | ||||
| Title | Variability of the Iceland-Scotland Overflow Water Transport Through the Charlie-Gibbs Fracture Zone: Results From an Eddying Simulation and Observations | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Geophysical Research: Oceans | Abbreviated Journal | J. Geophys. Res. Oceans |
| Volume | 123 | Issue | 8 | Pages | 5808-5823 |
| Keywords | Iceland; Scotland overflow water; Charlie; Gibbs fracture zone; variability; volume transport; eddying simulation | ||||
| Abstract | Observations show that the westward transport of the Iceland‐Scotland overflow water (ISOW) through the Charlie‐Gibbs Fracture Zone (CGFZ) is highly variable. This study examines (a) where this variability comes from and (b) how it is related to the variability of ISOW transport at upstream locations in the Iceland Basin and other ISOW flow pathways. The analyses are based on a 35‐year 1/12° eddying Atlantic simulation that represents well the main features of the observed ISOW in the area of interest, in particular, the transport variability through the CGFZ. The results show that (a) the variability of the ISOW transport is closely correlated with that of the barotropic transports in the CGFZ associated with the meridional displacement of the North Atlantic Current front and is possibly induced by fluctuations of large‐scale zonal wind stress in the Western European Basin east of the CGFZ; (b) the variability of the ISOW transport is increased by a factor of 3 from the northern part of the Iceland Basin to the CGFZ region and transport time series at these two locations are not correlated, further suggesting that the variability at the CGFZ does not come from the upstream source; and (c) the variability of the ISOW transport at the CGFZ is strongly anticorrelated to that of the southward ISOW transport along the eastern flank of the Mid‐Atlantic Ridge, suggesting an out‐of‐phase covarying transport between these two ISOW pathways. | ||||
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| ISSN | 2169-9275 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 952 | ||
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| Author |
Zavala-Hidalgo, J; Pares-Sierra, A; Ochoa, J | ||||
| Title | Seasonal variability of the temperature and heat fluxes in the Gulf of Mexico | Type | $loc['typeJournal Article'] | ||
| Year | 2002 | Publication | Atmosfera | Abbreviated Journal | |
| Volume | 15 | Issue | 2 | Pages | 81-104 |
| Keywords | Gulf of Mexico; heat fluxes; numerical model; sea surface temperature; seasonal variability | ||||
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| Call Number | COAPS @ mfield @ | Serial | 498 | ||
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| Author |
Zhang, M.; Wu, Z.; Qiao, F. | ||||
| Title | Deep Atlantic Ocean Warming Facilitated by the Deep Western Boundary Current and Equatorial Kelvin Waves | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 31 | Issue | 20 | Pages | 8541-8555 |
| Keywords | Ocean; Atlantic Ocean; Heating; Kelvin waves; Ocean circulation; Oceanic variability; EMPIRICAL MODE DECOMPOSITION; NONSTATIONARY TIME-SERIES; NORTH-ATLANTIC; CLIMATE-CHANGE; HEAT-CONTENT; HIATUS; VARIABILITY; CIRCULATION; TEMPERATURE; PACIFIC | ||||
| Abstract | Increased heat storage in deep oceans has been proposed to account for the slowdown of global surface warming since the end of the twentieth century. How the imbalanced heat at the surface has been redistributed to deep oceans remains to be elucidated. Here, the evolution of deep Atlantic Ocean heat storage since 1950 on multidecadal or longer time scales is revealed. The anomalous heat in the deep Labrador Sea was transported southward by the shallower core of the deep western boundary current (DWBC). Upon reaching the equator around 1980, this heat transport route bifurcated into two, with one continuing southward along the DWBC and the other extending eastward along a narrow strip (about 4 degrees width) centered at the equator. In the 1990s and 2000s, meridional diffusion helped to spread warming in the tropics, making the eastward equatorial warming extension have a narrow head and wider tail. The deep Atlantic Ocean warming since 1950 had overlapping variability of approximately 60 years. The results suggest that the current basinwide Atlantic Ocean warming at depths of 1000-2000 m can be traced back to the subsurface warming in the Labrador Sea in the 1950s. An inference from these results is that the increased heat storage in the twenty-first century in the deep Atlantic Ocean is unlikely to partly account for the atmospheric radiative imbalance during the last two decades and to serve as an explanation for the current warming hiatus. | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Call Number | COAPS @ user @ | Serial | 950 | ||
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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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| ISSN | 0967-0637 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 92 | ||
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