Evidence for enhanced mixing over rough topography in the abyssal ocean

By J. Ledwell, E. Montgomery, K. Polzin, Louis St. Laurent, R. Schmitt, J. Toole. Nature, 2000

678 citations recorded by the source corpus.

Subfields: Atmospheric Science, Earth-Surface Processes, Oceanography

View Paper: https://www.semanticscholar.org/paper/d7d39f8065343c65ad43e39e61cc1dae8d62d6b4

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Citations in the corpus

The Impact of Abyssal Mixing Parameterizations in an Ocean General Circulation Model (2009, methodology): “Based on the observations that mixing rates over rough topography are enhanced (Polzin et al. 1997; Ledwell et al. 2000) and inverse models of the tides that suggested enhanced energy loss from the barotropic tides over rough topography (Egbert and Ray 2000), Jayne and St.”
Efficient Inverse Modeling of Barotropic Ocean Tides (2002, background): “For example, studies of ocean microstructure have shown a correlation of turbulent dissipation rates with tidal cycles (e.g., Polzin, 1997; Ledwell et al., 2000), and there is increasing evidence that tides may provide a significant source of energy for mixing the deep ocean (Munk and Wunsch, 1998; ”
Diurnal Coupling in the Tropical Oceans of CCSM3 (2006, background): “This increase occurs at about 1000-m depth, as a crude representation of the enhanced deep vertical mixing observed over rough topography (Ledwell et al. 2000).”
Estimating tidally driven mixing in the deep ocean (2002, background): “…have provided direct evidence of internal tide driven turbulence along the continental slopes [Lien and Gregg, 2001; Moum et al., 2002], open-ocean seamounts [Lueck and Mudge, 1997; Kunze and Toole, 1997] and abyssal topography [Polzin et al., 1997; Ledwell et al., 2000; St. Laurent et al., 2001].”
Sensitivity of the Ocean State to the Vertical Distribution of Internal-Tide-Driven Mixing (2013, background): “In this semiempirical, energetically constrained parameterization, dissipation is bottom enhanced, as in the observations (Polzin et al. 1997; Ledwell et al. 2000).”
Parameterizing tidal dissipation over rough topography (2001, background): “An analysis of tracer dispersion and turbulent microstructure levels indicated that mixing rates were enhanced over the rough topography near the Mid-Atlantic Ridge [Ledwell et al., 2000].”
TOWARD REGIONAL CHARACTERIZATIONS OF THE OCEANIC INTERNAL WAVEFIELD (2010, positive): “In particular, the drag associated with internal wave breaking needs to be included in order to obtain accurate simulations of the atmospheric jet stream [Fritts and Alexander, 2003], and it has been argued that the ocean’s Meridional Overturning Circulation [Wunsch and Ferrari, 2004] is forced by t”
Buoyancy Forcing by Turbulence above Rough Topography in the Abyssal Brazil Basin (2001, methodology): “A detailed discussion of tracer- and microstructurederived diffusivities for the target isopycnal is given by Ledwell et al. (2000).”
Generation of internal tides in an ocean of finite depth: analytical and numerical calculations (2003, background): “In contrast to previous numerical investigations of internal tide generation in the open ocean (for e.g., Holloway and Merrifield, 1999; Merrifield et al., 2001), my goals are more process oriented.”
The role of the oceans in climate (2003, background): “However, recent measurements of vertical mixing in the deep ocean have shown that internal tidal mixing over the rough bathymetry of mid-ocean ridges has mixing rates reaching 1–3 × 10−4 m2 s−1 (Egbert and Ray, 2000; Ledwell et al., 2000).”
Tidal conversion at a very steep ridge (2003, background): “These disturbances, known as the ‘internal tide’ (Wunsch 1975), are a source of the energy required to overturn and mix the stably stratified abyss (Munk & Wunsch 1998; Ledwell et al. 2000).”
The accuracy of surface elevations in forward global barotropic and baroclinic tide models (2004, background): “On the other hand, in-situ observations at specific locations (e.g. Armi, 1978; Polzin et al., 1997; Lueck and Mudge, 1997; Kunze and Toole, 1997; Ledwell et al., 2000) suggest that substantial energy dissipation occurs over mid-ocean rough topography.”