Article
Acoustic Waves Generated by Gusty Flow over Hilly Terrain
Journal of Geophysical Research: Space Physics
Submitting Campus
Daytona Beach
Department
Physical Sciences
Document Type
Article
Publication/Presentation Date
10-20-2005
Disciplines
Abstract/Description
We examine the generation of acoustic waves by gusty flow over hilly terrain. We use simple theoretical models of the interaction between terrain and eddies and a linear model of acoustic-gravity wave propagation. The calculations presented here suggest that over a dense array of geographically extensive sources orographically generated vertically propagating acoustic waves can be a significant cause of thermospheric heating. This heating may account in good part for the thermospheric hot spot near the Andes reported by Meriwether et al. (1996, 1997).
DOI
https://doi.org/10.1029/2005JA011166
Publisher
American Geophysical Union
Grant or Award Name
NASA NAG5-13025, NAG5-10251, NAG5-13025 and NSF ATM-0242896
Citation Information
Walterscheid, R. L., and M. P. Hickey (2005), Acoustic waves generated by gusty flow over hilly terrain, J. Geophys. Res.,
110, A10307, doi:10.1029/2005JA011166.