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Closure of the Global Overturning Circulation Through the Indian, Pacific, and Southern Oceans: Schematics and Transports
Indian Pacific Southern Oceans
2015/7/16
The overturning pathways for the surface-ventilated North Atlantic Deep Water (NADW) and Antarctic Bottom Water (AABW) and the diffusively formed Indian Deep Water (IDW) and Pacific Deep Water (PDW) a...
Can sparse proxy data constrain the strength of the Atlantic meridional overturning circulation?
sparse proxy data constrain the Atlantic meridional overturning circulation
2014/12/18
In a feasibility study, the potential of proxy data
for the temperature and salinity during the Last Glacial Maximum (LGM, about 19 000 to 23 000 years before present)
in constraining the strength o...
An optimally tuned ensemble of the "eb_go_gs" configuration of GENIE: parameter sensitivity and bifurcations in the Atlantic overturning circulation
optimally tuned ensemble eb_go_gs configuration of GENIE parameter sensitivity and bifurcations Atlantic overturning circulation
2014/12/12
The key physical parameters for the "eb_go_gs" configuration of version 2.7.4 of GENIE, an Earth system model of intermediate complexity (EMIC), are tuned using a multi-objective genetic algorithm. An...
Can overturning motions in penumbral filaments be detected?
overturning motions penumbral filaments detected
2011/9/27
Numerical simulations indicate that the filamentation of sunspot penumbrae and the associated systematic outflow (the Evershed effect) are due to convectively driven fluid motions constrained by the i...
Glacial climate sensitivity to different states of the Atlantic Meridional Overturning Circulation：results from the IPSL model
Glacial climate sensitivity Atlantic Meridional Overturning Circulation
2009/12/3
Paleorecords from distant locations on the globe show rapid and large amplitude climate variations during the last glacial period. Here we study the global climatic response to different states of the...
Mid-Pliocene shifts in ocean overturning circulation and the onset of Quaternary-style climates
Mid-Pliocene shifts Quaternary-style climates ocean overturning circulation
2009/12/3
A major tipping point of Earth's history occurred during the mid-Pliocene: the onset of major Northern-Hemisphere Glaciation (NHG) and of pronounced, Quaternary-style cycles of glacial-to-interglacial...
The Energetics of Overturning Structures：Implications for the Theory of Fossil Turbulence
Fossil Turbulence Energetics Overturning Structures
2009/1/19
A large number of oceanic and freshwater microstructure observations are analyzed to determine the energetic state of the turbulence. The total available energy and a time scale for dissipating the to...
Statistics of Internal Wave Overturning from Observations of Upper Ocean Temperature
Internal Wave Upper Ocean Temperature
2009/1/13
The seasonal thermocline in the Sargasso Sea near 30°45′N, 71°45′W was measured in July 1981 using a towed thermistor army with 0.5 m horizontal and vertical resolution. A 200-km long section of the s...
The Regulation of Northern Overturning by Southern Hemisphere Winds
Northern Overturning Southern Hemisphere Winds Coarse-resolution models Antarctic Circumpolar Current
2008/12/10
Coarse-resolution models are used to study the interaction of zonal wind stress at the latitude of Drake Passage and the production of northern deep water. A nearly linear response to wind stress at t...
Deep-Water Formation and Meridional Overturning in a High-Resolution Model of the North Atlantic
Meridional Overturning Deep-Water Formation High-Resolution Model North Atlantic
2008/12/10
The authors use different versions of the model of the wind- and thermohaline-driven circulation in the North and Equatorial Atlantic developed under the WOCE Community Modeling Effort to investigate ...
Low-frequency oscillations of the Atlantic Ocean meridional overturning circulation in a coupled climate model
Low-frequency oscillations Atlantic Ocean meridional overturning circulation climate model
2008/11/4
Using a 3-dimensional climate model of intermediate complexity we show that the overturning circulation of the Atlantic Ocean can vary at multicentennial-to-millennial timescales for modern boundary c...
The modern and glacial overturning circulation in the Atlantic ocean in PMIP coupled model simulations
glacial overturning circulation Atlantic ocean PMIP
2008/11/4
This study analyses the response of the Atlantic meridional overturning circulation (AMOC) to LGM forcings and boundary conditions in nine PMIP coupled model simulations, including both GCMs and Earth...
A modeling sensitivity study of the influence of the Atlantic meridional overturning circulation on neodymium isotopic composition at the Last Glacial Maximum
A modeling sensitivity study of the influence of the Atlantic meridional overturning circulation on neodymium isotopic composition at the Last Glacial Maximum
2008/10/31
Using a simple parameterisation that resolves the first order global Nd isotopic composition (hereafter expressed as εNd in an Ocean Global Circulation Model, we have tested the impact of different ci...
Seasonal Cycles of Meridional Overturning and Heat Transport of the Indian Ocean
Seasonal Cycles Indian Ocean Heat Transport
2008/10/29
A general circulation model of the Indian Ocean is fitted to monthly averaged climatological temperatures, salinities, and surface fluxes using the adjoint method. Interannual variability is minimized...
Meridional Overturning and Dianeutral Transport in a z-Coordinate Ocean Model Including Eddy-Induced Advection
Dianeutral Transport z-Coordinate Ocean Model Eddy-Induced Advection
2008/10/28
The present study examines the marked changes in the patterns of meridional overturning and dianeutral motion that occur upon introduction of the Gent and McWilliams (GM) scheme for eddy-induced trans...