microbarom

microbarom

[′mī·krō‚bar·əm]
(acoustics)
An infrasound wave that originates with surface waves on the seas or oceans, having a period of 4-7 seconds and a sound pressure level of about 85 decibels.
References in periodicals archive ?
(26,27) We note that ocean waves also excite ambient low-frequency acoustic waves as in the case of secondary microseisms called microbaroms. (28-30) These waves can be explained by the second-order effect associated with the moving boundary of the sea surface.
(1973) Sea wave origin of microbaroms and microseisms.