REMARKS ON THE TRAVELLING WAVE DECOMPOSITION

dc.contributor.author	Pollitz F.F.
dc.date.accessioned	2021-03-18T00:36:56Z
dc.date.available	2021-03-18T00:36:56Z
dc.date.issued	2001
dc.identifier	https://www.elibrary.ru/item.asp?id=1205011
dc.identifier.citation	Geophysical Journal International, 2001, 144, 2, 233-246
dc.identifier.issn	0956-540X
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/26865
dc.description.abstract	In elastic wave propagation on a spherically symmetric earth model, a normal mode sum is converted into a sum of equivalent travelling waves by means of a travelling wave decomposition (TWD). For two decades, seismologists have assumed that each travelling wave in the TWD is associated with only real phase velocities, that is, no evanescent waves travel on a spherically symmetric earth model. In this paper, this assumption is proven false. By including a countably infinite set of waves travelling as evanescent waves, several conceptual difficulties confronting the TWD are resolved.
dc.subject	EVANESCENT WAVES
dc.subject	NORMAL MODES
dc.subject	TRAVELLING WAVES
dc.subject	WAVE PROPAGATION
dc.title	REMARKS ON THE TRAVELLING WAVE DECOMPOSITION
dc.type	Статья

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