Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Airflow over a two-dimensional escarpment. III: Nonhydrostatic flow

Blockley, J.A. and Lyons, T.J. (1994) Airflow over a two-dimensional escarpment. III: Nonhydrostatic flow. Quarterly Journal of the Royal Meteorological Society, 120 (515). pp. 79-109.

PDF - Published Version
Download (9MB)
Link to Published Version:
*Subscription may be required


Forced flow over the asymmetric topography of the Darling Scarp, Western Australia is modelled, using a nonhydrostatic model, and compared with observations. Drag histories and sensitivity tests indicate that it is possible for the flow to be dominated by hydrostatic downslope windstorms even if the hydrostatic index indicates nonhydrostatic dominance. Experiments on a wide range of one- or two-layered flows suggest that nonhydrostatic effects on windstorm events are very small. However, the development and location of trapped lee waves can be significantly affected if there is sufficient hydrostatic forcing in the flow. For hydrostatic forcing to dominate over trapped lee waves it is necessary for reflection, from a region of wave breaking or a critical layer, to occur at the right height.

Item Type: Journal Article
Murdoch Affiliation(s): School of Biological and Environmental Sciences
Publisher: Royal Meteorological Society
Copyright: (c) Royal Meteorological Society
Item Control Page Item Control Page


Downloads per month over past year