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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 | ||
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| Author | Wu, Z.; Chassignet, E.P.; Ji, F.; Huang, J. | ||||
| Title | Reply to 'Spatiotemporal patterns of warming' | Type | $loc['typeJournal Article'] | ||
| Year | 2014 | Publication | Nature Climate Change | Abbreviated Journal | Nature Climate change |
| Volume | 4 | Issue | 10 | Pages | 846-848 |
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| ISSN | 1758-678X | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 151 | ||
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| Author | Ji, F.; Wu, Z.; Huang, J.; Chassignet, E.P. | ||||
| Title | Evolution of land surface air temperature trend | Type | $loc['typeJournal Article'] | ||
| Year | 2014 | Publication | Nature Climate Change | Abbreviated Journal | Nature Climate change |
| Volume | 4 | Issue | 6 | Pages | 462-466 |
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| ISSN | 1758-678X | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 131 | ||
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| Author | Ali, M.; Singh, N.; Kumar, M.; Zheng, Y.; Bourassa, M.; Kishtawal, C.; Rao, C. | ||||
| Title | Dominant Modes of Upper Ocean Heat Content in the North Indian Ocean | Type | $loc['typeJournal Article'] | ||
| Year | 2018 | Publication | Climate | Abbreviated Journal | Climate |
| Volume | 6 | Issue | 3 | Pages | 71 |
| Keywords | ocean heat content; tropical cyclone heat potential; dominant modes; North Indian Ocean; SUMMER MONSOON; INTENSIFICATION; INTENSITY; PACIFIC | ||||
| Abstract | The thermal energy needed for the development of hurricanes and monsoons as well as any prolonged marine weather event comes from layers in the upper oceans, not just from the thin layer represented by sea surface temperature alone. Ocean layers have different modes of thermal energy variability because of the different time scales of ocean-atmosphere interaction. Although many previous studies have focused on the influence of upper ocean heat content (OHC) on tropical cyclones and monsoons, no study thus farparticularly in the North Indian Ocean (NIO)has specifically concluded the types of dominant modes in different layers of the ocean. In this study, we examined the dominant modes of variability of OHC of seven layers in the NIO during 1998-2014. We conclude that the thermal variability in the top 50 m of the ocean had statistically significant semiannual and annual modes of variability, while the deeper layers had the annual mode alone. Time series of OHC for the top four layers were analyzed separately for the NIO, Arabian Sea, and Bay of Bengal. For the surface to 50 m layer, the lowest and the highest values of OHC were present in January and May every year, respectively, which was mainly caused by the solar radiation cycle. | ||||
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| ISSN | 2225-1154 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ rl18 @ | Serial | 986 | ||
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| Author | Ali, M.; Singh, N.; Kumar, M.; Zheng, Y.; Bourassa, M.; Kishtawal, C.; Rao, C. | ||||
| Title | Dominant Modes of Upper Ocean Heat Content in the North Indian Ocean | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Climate | Abbreviated Journal | Climate |
| Volume | 6 | Issue | 71 | Pages | 1 – 8 |
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| Abstract | The thermal energy needed for the development of hurricanes and monsoons as well as any prolonged marine weather event comes from layers in the upper oceans, not just from the thin layer represented by sea surface temperature alone. Ocean layers have different modes of thermal energy variability because of the different time scales of ocean–atmosphere interaction. Although many previous studies have focused on the influence of upper ocean heat content (OHC) on tropical cyclones and monsoons, no study thus far—particularly in the North Indian Ocean (NIO)—has specifically concluded the types of dominant modes in different layers of the ocean. In this study, we examined the dominant modes of variability of OHC of seven layers in the NIO during 1998–2014. We conclude that the thermal variability in the top 50 m of the ocean had statistically significant semiannual and annual modes of variability, while the deeper layers had the annual mode alone. Time series of OHC for the top four layers were analyzed separately for the NIO, Arabian Sea, and Bay of Bengal. For the surface to 50 m layer, the lowest and the highest values of OHC were present in January and May every year, respectively, which was mainly caused by the solar radiation cycle. | ||||
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| ISSN | 2225-1154 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1030 | ||
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| Author | Lim, Y.-K.; Kim, K.-Y. | ||||
| Title | ENSO Impact on the Space-Time Evolution of the Regional Asian Summer Monsoons | Type | $loc['typeJournal Article'] | ||
| Year | 2007 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 20 | Issue | 11 | Pages | 2397-2415 |
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Call Number | COAPS @ mfield @ | Serial | 424 | ||
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| Author | Smith, S.R.; Brolley, J.; O'Brien, J.J.; Tartaglione, C.A. | ||||
| Title | ENSO's Impact on Regional U.S. Hurricane Activity | Type | $loc['typeJournal Article'] | ||
| Year | 2007 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 20 | Issue | 7 | Pages | 1404-1414 |
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | NOAA, NASA, USDA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 429 | ||
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| Author | Lim, Y.-K.; Kim, K.-Y. | ||||
| Title | A New Perspective on the Climate Prediction of Asian Summer Monsoon Precipitation | Type | $loc['typeJournal Article'] | ||
| Year | 2006 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 19 | Issue | 19 | Pages | 4840-4853 |
| Keywords | Monsoons; Asia; Intraseasonal variability; Precipitation | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 708 | ||
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| Author | Kara, A.B.; Hurlburt, H.E.; Wallcraft, A.J.; Bourassa, M.A. | ||||
| Title | Black Sea Mixed Layer Sensitivity to Various Wind and Thermal Forcing Products on Climatological Time Scales | Type | $loc['typeJournal Article'] | ||
| Year | 2005 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 18 | Issue | 24 | Pages | 5266-5293 |
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| Funding | DOD, NRL | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 446 | ||
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| Author | Bourassa, M.A.; Romero, R.; Smith, S.R.; O'Brien, J.J. | ||||
| Title | A New FSU Winds Climatology | Type | $loc['typeJournal Article'] | ||
| Year | 2005 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 18 | Issue | 17 | Pages | 3686-3698 |
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | NASA, NOAA, NSF, ONR | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 449 | ||
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