Premium
Evidence for an infrasound waveguide
Author(s) -
Herrin Eugene T.,
Kim Tae Sung,
Stump Brian W.
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl025491
Subject(s) - infrasound , dispersion (optics) , geology , ephemeral key , waveguide , acoustics , seismology , geophysics , optics , physics , computer science , algorithm
On May 30, 2005 eight strongly dispersed infrasound signals were recorded at one seismo‐acoustic array in the Republic of Korea. Phase‐matched filtering and a forward modeling technique were used to determine the nature of the dispersion. The most likely explanation for these dispersed infrasound signals are that the dispersion is due to propagation down a low‐velocity waveguide. This can be characterized as an ephemeral “SOFAR” layer in the atmosphere.