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

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Guarino M.V. (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY

Vol. 143

Pages: 3291-3297

ISSN: 0035-9009

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-010-GAW

DOI: 10.1002/qj.3157

Abstract (EN): <jats:p>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 non¿hydrostatic 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.</jats:p>

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7