Open AccessEarth Motion Caused by Local Atmospheric Pressure Changes
Author(s) -
Sorrells G. G.,
McDonald John A.,
Der Z. A.,
Herrin Eugene
Publication year - 1971
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1971.tb03384.x
Subject(s) - seismometer , atmospheric pressure , geology , seismic noise , noise (video) , atmospheric noise , earth (classical element) , range (aeronautics) , atmospheric wave , seismology , environmental science , atmospheric sciences , infrasound , acoustics , physics , optics , wave propagation , materials science , gravity wave , oceanography , composite material , artificial intelligence , computer science , image (mathematics) , mathematical physics
Summary Observations have been made of the local atmospheric pressure field and the long‐period seismic noise fields both on the surface of the Earth and in a mine at a depth of 183 metres. The observations show that during windy intervals and in the period range 20–100 s there is a strong correlation between local atmospheric pressure changes and the noise recorded by a vertical seismograph located on the surface. In contrast, over the same range of periods there is no correlation between the seismic noise recorded in the mine and local atmospheric pressure changes except during the passage of acoustic waves. It is shown that the noise in this pass band is not due to the buoyant response of the seismograph, but is caused by the motion of the Earth responding to atmospheric pressure changes.