2020
DOI: 10.1017/jfm.2020.389
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Instability and cross-boundary-layer transport by shoaling internal waves over realistic slopes

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Cited by 17 publications
(23 citation statements)
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“…This dynamics is in good agreement with fission described in past studies (e.g. Aghsaee et al 2010;Xu & Stastna 2020).…”
Section: Fissionsupporting
confidence: 92%
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“…This dynamics is in good agreement with fission described in past studies (e.g. Aghsaee et al 2010;Xu & Stastna 2020).…”
Section: Fissionsupporting
confidence: 92%
“…Although these same geophysically realistic slopes are typically difficult to replicate in the laboratory, or in numerical models, laboratory experiments in an 18 m wave tank identified the formation of boluses propagating up-slope from the evolution of periodic waves propagating over gentle slopes (Wallace & Wilkinson 1988). Additionally, Xu & Stastna (2020) recently identified the role of boundary layer instability in fissioning waves propagating over realistic slopes in a high resolution model. When shoaling, energy transported by the ISWs has been observed to dissipate at rates at least 100 times background levels (Lien et al 2005), and is used to enhance turbulent mixing (Moum et al 2003).…”
Section: Introductionmentioning
confidence: 99%
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“…The boundary conditions are free slip for velocity and no flux for temperature and the model achieves spectral accuracy. Previous studies have used SPINS to simulate the formation and propagation of gravity currents in numerous circumstances; Xu, Subich & Stastna (2016) and Xu & Stastna (2020) being two recent examples. The length of the domain is m and the height is m. The number of grid points in the horizontal and vertical directions are and respectively, and are uniformly spaced.…”
Section: Methodsmentioning
confidence: 99%
“…For example, Zhang et al (2012) established a variable water depth internal wave numerical model in a continuously stratified fluid system based on the Euler equation. Xu and Stastna (2020) used the viscid incompressible Boussinesq model to study cross-boundary-layer transport (Boegman and Stastna, 2019) by the fissioning process of shoaling ISWs. Lamb (1994) established a non-hydrostatic model, using a second-order projection method developed by Bell and Marcus (1992), which is used for internal wave research including boundary layer instability (Aghsaee et al, 2012), reflection (Lamb, 2009), and the interaction of the tides with the topography (Lamb, 2007;Aghsaee et al, 2010).…”
Section: Introductionmentioning
confidence: 99%