Non-hydrostatic effects on mountain wave breaking in directional shear flows

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Guarino, M.-V. and Teixeira, M. A. C. ORCID: https://orcid.org/0000-0003-1205-3233 (2017) Non-hydrostatic effects on mountain wave breaking in directional shear flows. Quarterly Journal of the Royal Meteorological Society, 143 (709). pp. 3291-3297. ISSN 1477-870X doi: 10.1002/qj.3157

Abstract/Summary

Mountain waves excited by narrow 3D orography are investigated using idealized numerical simulations of atmospheric flows with directional wind shear. The stability of these waves is compared with the stability of hydrostatic mountain waves. The focus is on understanding how wave breaking is modified via gravity wave-critical level interaction, when non-hydrostatic (dispersive) effects arise. The influence of nonhydrostatic effects on wave breaking appears to be a function of the intensity of the background shear, increasing the stability of the flow (inhibiting wave breaking) for weak wind shear, but decreasing it instead (enhancing wave breaking) for stronger wind shear.

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Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/72365
Identification Number/DOI	10.1002/qj.3157
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Uncontrolled Keywords	Mountain waves, Non-hydrostatic effects, Wave breaking, 3D mountains, Directional shear
Publisher	Royal Meteorological Society
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Funders:	European Commission	The sponsoring bodies who contributed funding for the creation of this item. Example: NERC Example: The Royal Society of Chemistry A pick list of funders may appear as you type in the funder's name in full or as an acronym. Select a correct match to complete the field or type in a new entry in full. For new entries, the full name is preferred.
Projects:	Global to Local Impacts of Flow over Orography (GLIMFLO) Funded by: European Commission (PCIG13-GA-2013-618016 - £71,429) Local Lead (PI): Miguel Teixeira 1 September 2013 - 31 August 2017	Click Add to select your project (received at Reading) from an autocomplete list.

Deposit Details

Date Deposited:	20 Sep 2017 09:08	Date item deposited into CentAUR
Last Modified:	09 Jun 2024 04:33	Date item last modified

References

Bacmeister JT, Schoeberl MR. 1989. Breakdown of vertically propagating two-dimensional gravity waves forced by orography. Journal of the Atmospheric Sciences 46: 2109–2134. Clark T, Peltier W. 1977. On the evolution and stability of finite-amplitude mountain waves. Journal of the Atmospheric Sciences 34: 1715–1730. Doyle JD, Reynolds CA. 2008. Implications of regime transitions for mountain-wave-breaking predictability. Monthly Weather Review 136: 5211–5223. Durran DR. 1986. Another look at downslope windstorms. part i: The development of analogs to supercritical flow in an infinitely deep, continuously stratified fluid. Journal of the Atmospheric Sciences 43: 2527–2543. Guarino MV, Teixeira MA, Ambaum MH. 2016. Turbulence generation by mountain wave breaking in flows with directional wind shear. Q. J. R. Meteorol. Soc. 142: 2715–2726. Holton JR, Hakim GJ. 2012. An introduction to dynamic meteorology. Academic press. Kirshbaum DJ, Bryan GH, Rotunno R, Durran DR. 2007. The triggering of orographic rainbands by small-scale topography. Journal of the atmospheric sciences 64: 1530–1549. Laprise R, Peltier WR. 1989. On the structural characteristics of steady finiteamplitude mountain waves over bell-shaped topography. Journal of the atmospheric sciences 46: 586–595. McFarlane NA. 1987. The effect of orographically excited gravity wave drag on the general circulation of the lower stratosphere and troposphere. J. Atmos. Sci. 44: 1775–1800. Nappo CJ. 2012. An introduction to atmospheric gravity waves, 2nd ed. Academic Press. Sachsperger J, Serafin S, Grubiˇsi´c V. 2016. Dynamics of rotor formation in uniformly stratified two-dimensional flow over a mountain. Quarterly Journal of the Royal Meteorological Society 142: 1201–1212. Scorer R. 1949. Theory of waves in the lee of mountains. Quarterly Journal of the Royal Meteorological Society 75: 41–56. Shutts GJ. 1998. Stationary gravity-wave structure in flows with directional wind shear. Q. J. R. Meteorol. Soc. 124: 1421–1442. Shutts GJ, Gadian A. 1999. Numerical simulations of orographic gravity waves in flows which back with height. Q. J. R. Meteorol. Soc. 125: 2743–2765. Smith RB. 1980. Linear theory of stratified hydrostatic flow past an isolated mountain. Tellus 32: 348–364. Stiperski I, Grubisic V. 2011. Trapped lee wave interference in the presence of surface friction. Journal of the Atmospheric Sciences 68: 918–936. Teixeira MA, Argaın JL, Miranda PM. 2013. Orographic drag associated with lee waves trapped at an inversion. Journal of the Atmospheric Sciences 70: 2930–2947. Teixeira MAC, Miranda PMA. 2009. On the momentum fluxes associated with mountain waves in directionally sheared flows. J. Atmos. Sci. 66: 3419–3433. Teixeira MAC, Miranda PMA, Valente MA. 2004. An analytical model of mountain wave drag for wind profiles withshear and curvature. J. Atmos. Sci. 61: 1040–1054. Vosper S. 2004. Inversion effects on mountain lee waves. Quarterly Journal of the Royal Meteorological Society 130: 1723–1748. Zangl G. 2003. Orographic gravity waves close to the nonhydrostatic limit of vertical propagation. Journal of the atmospheric sciences 60: 2045–2063.

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