Uppsala University Department of Information Technology

Technical Report 2013-018

Atmospheric Sound Propagation over Large-Scale Irregular Terrain

Martin Almquist, Ilkka Karasalo, and Ken Mattsson

September 2013

Abstract:
A benchmark problem on atmospheric sound propagation over irregular terrain has been solved using a stable fourth-order accurate finite difference approximation of a high-fidelity acoustic model. A comparison with the parabolic equation method and ray tracing methods is made. The results show that ray tracing methods can potentially be unreliable in the presence of irregular terrain.

Available as PDF (984 kB, no cover)

Download BibTeX entry.



Uppsala Universitet