Polarized Earth's ambient microseismic noise

Effect of Microseismic Noise on a LIGO Interferometer

Modelling secondary microseismic noise by normal mode summation

L. Gualtieri,1,2 E. Stutzmann,1 Y. Capdeville,3 F. Ardhuin,4 M. Schimmel,5 A. Mangeney6 and A. Morelli7 1Institut de Physique du Globe de Paris (IPGP), UMR 7154 CNRS, F-75005, Paris, France. E-mail: [email protected] 2Dipartimento di Fisica e Astronomia, Settore di Geofisica, Università di Bologna, Bologna, Italy 3CNRS, Laboratoire de Planètologie et Gèodynamique de Nantes, Nantes, France 4Labo...

Imaging with ambient noise

© 2010 American Institute of Physics, S-0031-9228-1009-030-7 Recent developments in seismology, ultrasonics, and underwater acoustics have led to a radical change in the way scientists think about ambient noise—the diffuse waves generated by pressure fluctuations in the atmosphere, the scattering of water waves in the ocean, and any number of other sources that pervade our world. Because diffus...

Underwater Ambient Noise

Ambient Earth noise and instrumental noise

Introduction The seismic frequency band can be defined from 0.3 mhz to tens or hundreds of hz, in which the lower limit is defined by the period of the gravest observed free mode of the Earth (0s2). Digital seismic recordings in this frequency band always contain noise, which essentially can be attributed to ambient Earth noise and instrumental noise, or self-noise, of the recording system. Ins...