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Effect of shot interval on ocean bottom seismograph and hydrophone data
Author(s) -
Christeson G. L.,
Nakamura Y.,
McIntosh K. D.,
Stoffa P. L.
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl03572
Subject(s) - shot (pellet) , hydrophone , geology , seismometer , channel (broadcasting) , ocean bottom , interval (graph theory) , waves and shallow water , line (geometry) , remote sensing , acoustics , geodesy , seismology , oceanography , physics , computer science , telecommunications , geometry , mathematics , chemistry , organic chemistry , combinatorics
Data collected by 18 ocean bottom receivers for a seismic line shot at both 50‐m (∼24 s shot interval) and 125‐m (∼58 s shot interval) shot spacing provide a direct field comparison of the effect of shot interval on marine wide‐angle seismic data. Our results indicate that both shot spacings produce high‐quality refraction data in shallow water (<1000 m) on hydrophone and vertical channel data. In deeper water, the data quality of the 50‐m line is adequate for the vertical channel, but it is often poor at large offsets for the hydrophone channel in comparison to the 125‐m shot spacing data. A theoretical model to explain these observations provides further information useful for designing an experiment using ocean‐bottom receivers.