NDLI: Improving Seismic Resolution Through Array Processing Techniques

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Improving Seismic Resolution Through Array Processing Techniques

Content Provider	Semantic Scholar
Author	Rost, Sebastian Thomas, Claire
Copyright Year	2009
Abstract	Seismic arrays, first introduced in the late 1950s to detect underground nuclear explosions, have helped to improve our knowledge about the structure of the Earth for the last 40 years. During these years, numerous array processing methods have been developed that use the high signal coherence and accurate timing of array data to generate highresolution images of Earth structure. Here, we present an overview of resolution issues related to seismic array studies of Earth structure by first introducing basic array processing techniques and then discussing more advanced techniques applied to array data recently. The increase of seismic stations deployed in experiments or permanently in many regions of the globe allows a much denser sampling of the seismic wavefield. This dense sampling enables the adaptation of controlled source analysis techniques for the study of Earth structure using earthquakes with higher resolution than previously possible. Here we will discuss different migration methods of teleseismic data that use the incidence angle information of scattered arrivals to obtain images of Earth structure. Finally, we show data examples how these methods can be used to increase our knowledge of the structure of the Earth’s deep interior.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://sites.ualberta.ca/~ygu/publications/survey_2009/Rost_thomas.pdf
Language	English
Access Restriction	Open
Subject Keyword	Accident caused by earthquake Acclimatization Array processing Bands Beamforming Data center Dimensions Eighty Entity Name Part Qualifier - adopted Estimated Experiment Frequency band Gain Incidence matrix Sampling (signal processing) Sampling - Surgical action Stacking density
Content Type	Text
Resource Type	Article

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