Improved estimates of global ocean circulation, heat transport and mixing from hydrographic data

By A. Ganachaud, Carl Wunsch. Nature, 2000

1,182 citations recorded by the source corpus.

Subfields: Global and Planetary Change, Oceanography

View Paper: https://www.semanticscholar.org/paper/9ff0d8cc7fdc9b3f0440100e308adfa6e7096c9e

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Citations in the corpus

Different ocean states and transient characteristics in Last Glacial Maximum simulations and implications for deglaciation (2013, background): “Due to its capability to redistribute large amounts of heat around the globe (e.g. Ganachaud and Wunsch, 2000), the Atlantic meridional overturning circulation (AMOC) is a key player in the global climate system.”
Beyond the bipolar seesaw: Toward a process understanding of interhemispheric coupling (2018, methodology): “…model with simpli ﬁ ed geometry by Stocker et al. (1992) and is seen in models ranging from intermediate complexity to fully coupled GCMs (e.g. Ganopolski and Rahmstorf, 2001; Schmittner et al., 2003; Peltier and Vettoretti, 2014), with some notable exceptions in which the South Atlantic…”
Potential Enthalpy: A Conservative Oceanic Variable for Evaluating Heat Content and Heat Fluxes (2003, background): “Just as it is valid and oftentimes advantageous to carry equations in inverse models for salinity anomaly rather than the full salinity (McDougall 1991; Sloyan and Rintoul 2000; Ganachaud and Wunsch 2000), so it is valid to use equations for the anomaly of conservative temperature, (Q 2 Q0).”
Radiation and Dissipation of Internal Waves Generated by Geostrophic Motions Impinging on Small-Scale Topography: Theory (2010, background): “Inverse calculations (Ganachaud and Wunsch 2000; Sloyan and Rintoul 2001) find that this vigorous turbulent mixing contributes crucially to the downward buoyancy flux that maintains the abyssal ocean stratification and to the upward transport of waters that closes the ocean’s meridional overturning ”
An Introduction to Ocean Turbulence: Turbulence, heat and waves (2007, methodology): “Ganachaud and Wunsch (2000) used methods similar to Munk’s to derive the diapycnal diffusivity in the Atlantic, Indian and Pacific Oceans at depths of about 2000–3800 m, and also below about 3800 m.”
Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode (2004, background): “Consequently, the region is key to the global climate system, with large quantities of heat, salt and freshwater being distributed by the Antarctic Circumpolar Current (ACC), the world’s largest current in terms of volume and mass transport [Macdonald and Wunsch, 1996; Ganachaud and Wunsch, 2000].”
Possible atmospheric CO2 extremes of the Middle Cretaceous (late Albian-Turonian) (2002, background): “In ocean model experiments with modern solar luminosity, 1380 ppm CO2, and Albian and Turonian paleogeographies, Poulsen [1999] obtained only Southern Hemisphere bottom water sources, as did Brady et al. [1998] with solar luminosity set at 99.4% of modern, 1680 ppm CO2 and a Campanian (80 Ma) paleog”
Inverse Analysis Adjustment of the SOC Air-Sea Flux Climatology Using Ocean Heat Transport Constraints (2003, methodology): “Gleckler and Weare (1997) attempted to estimate the errors in the Oberhuber (1988) flux climatology using estimates for the random errors and standard sampling theory. However, Josey et al. (1999) noted difficulties in applying this method to the SOC climatology due to uncertainties over the many me”
Tipping elements and climate–economic shocks: Pathways toward integrated assessment (2016, background): “AMOC transports a large amount of heat northward (up to 1x10(15) W) [Ganachaud and Wunsch, 2000], so its changes have large impacts on regional temperature and precipitation in the North Atlantic and the Northern Hemisphere.”
Climate Fluctuations of Tropical Coupled Systems—The Role of Ocean Dynamics (2006, background): “This unique warm water formation and escape process (Csanady 1984; Lee and Csanady 1999) makes the Atlantic the only ocean where the net meridional heat transport is everywhere northward (e.g., Trenberth and Caron 2001; Ganachaud and Wunsch 2001).”
The Role of Eddies in Determining the Structure and Response of the Wind-Driven Southern Hemisphere Overturning: Results from the Modeling Eddies in the Southern Ocean (MESO) Project (2006, methodology): “While the simulations here exhibit Unauthenticated | Downloaded 09/01/22 06:44 PM UTC roughly 20 Sv of AAIW formation from denser waters, as compared with the 14 Sv proposed by Schmitz (1996), an inverse model by Ganachaud and Wunsch (2000) finds only 8–9 Sv of net conversion.”
The Impact of Abyssal Mixing Parameterizations in an Ocean General Circulation Model (2009, background): “Furthermore, they concluded that it was difﬁcult to reconcile basin-averaged diffusivities on the order of 10 3 10 2 4 m 2 s 2 1 as estimated by Ganachaud and Wunsch (2000) with realistic stratiﬁcation in the deep ocean unless the strong vertical mixing is conﬁned to a few locations.”
Thermohaline Ocean Circulation (2006, methodology): “More recently, [Talley, et al., 2003] estimated 18+-5 Sv of NADW formation, and an inverse model ([Ganachaud and Wunsch, 2000]) yielded 15+-2 Sv NADW overturning in the high latitudes.”
Energetic Constraints on the Position of the Intertropical Convergence Zone (2013, background): “However, these inferences are uncertain, because both oceanic and atmospheric energy ﬂuxes and the net energy input to the atmosphere within the tropical belt are uncertain, with standard errors in meridional energy ﬂuxes of at least 6 0.2 PW (Ganachaud and Wunsch 2000; Mayer and Haimberger 2012).”
Volume, heat, and freshwater transports of the global ocean circulation 1993-2000, estimated from a general circulation model constrained by World Ocean Circulation Experiment (WOCE) data (2003, background): “…Although the low model resolution causes problems with estimates of the time average property transports, the patterns in the means are in encouraging quantitative agreement with independent previous estimates [e.g., Wijffels et al., 1992; Macdonald and Wunsch, 1996; Ganachaud and Wunsch, 2000].”
Thermohaline circulation hysteresis: A model intercomparison (2005, background): “[2] The Atlantic thermohaline circulation [Rahmstorf, 2003] is an important feature of the climate system, since it is responsible for most of the northward heat transport in the North Atlantic (up to 1015 W) [Ganachaud and Wunsch, 2000].”