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FUNDAMENTAL NOISE AFFECTING SIGNAL‐TO‐NOISE RATIO OF RESISTIVITY SURVEYS *
Author(s) -
HOOGERVORST G. H. T. C.
Publication year - 1975
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1975.tb01535.x
Subject(s) - noise (video) , electrical resistivity and conductivity , gemology , geology , signal to noise ratio (imaging) , signal (programming language) , economic geology , telmatology , magnitude (astronomy) , regional geology , engineering geology , mineralogy , acoustics , geophysics , seismology , hydrogeology , geotechnical engineering , physics , optics , electrical engineering , computer science , engineering , tectonics , astronomy , artificial intelligence , volcanism , programming language , image (mathematics)
A bstract Variations of the spontaneous electrical field appear to be a fundamental noise in geoelectrical resistivity surveying, irrespective of the origin of these variations. The signal‐to‐noise ratio can decrease to such an extent that investigations to large depths are impossible in some regions. Description of the character and magnitude of the noise recorded in Spain and Holland (1973) and the correlation between simultaneous recorded data at different locations form the subject of this paper.