Effect of seismic source bandwidth on reflection sections to image water structure Export

@article{hobbs_etal:2009, abstract = {The seismic reflection profile is the convolution of the seismic acquisition impulse response and the target impedance contrasts. In the ocean, these contrasts are mainly determined by the widths and gradients of the temperature transitions between the different water masses. Hence seismic oceanography profiles are sensitive to the frequency bandwidth of the seismic acquisition system. We tested a novel seismic source that allowed us to simultaneously profile the ocean with differing impulse responses. We show that frequencies 20 Hz are best to delineate large impedance contrasts that occur over a vertical scale of several tens of meters whereas frequencies 80 Hz image the boundaries of layers of around 10 m. We demonstrate a towed acquisition system that can operate from a research vessel to give a bandwidth from 10 to 120 Hz that could, if required, be modified to provide frequencies up to 200 Hz.}, author = {Hobbs, R. W. and Klaeschen, D. and Sallar\`{e}s, V. and Vsemirnova, E. and Papenberg, C.}, citeulike-article-id = {6073015}, citeulike-linkout-0 = {http://dx.doi.org/10.1029/2009GL040215}, citeulike-linkout-1 = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2009GeoRL..3600D08H}, day = {05}, doi = {10.1029/2009GL040215}, issn = {0094-8276}, journal = {Geophysical Research Letters}, keywords = {acoustics, reflection, seismics, source}, month = {November}, pages = {L00D08+}, posted-at = {2009-11-05 10:00:44}, priority = {2}, title = {Effect of seismic source bandwidth on reflection sections to image water structure}, url = {http://dx.doi.org/10.1029/2009GL040215}, volume = {36}, year = {2009} }

TY - JOUR ID - hobbs_etal:2009 L3 - citeulike-article-id:6073015 N2 - The seismic reflection profile is the convolution of the seismic acquisition impulse response and the target impedance contrasts. In the ocean, these contrasts are mainly determined by the widths and gradients of the temperature transitions between the different water masses. Hence seismic oceanography profiles are sensitive to the frequency bandwidth of the seismic acquisition system. We tested a novel seismic source that allowed us to simultaneously profile the ocean with differing impulse responses. We show that frequencies 20 Hz are best to delineate large impedance contrasts that occur over a vertical scale of several tens of meters whereas frequencies 80 Hz image the boundaries of layers of around 10 m. We demonstrate a towed acquisition system that can operate from a research vessel to give a bandwidth from 10 to 120 Hz that could, if required, be modified to provide frequencies up to 200 Hz. JF - Geophysical Research Letters SN - 0094-8276 TI - Effect of seismic source bandwidth on reflection sections to image water structure VL - 36 SP - L00D08 KW - acoustics KW - reflection KW - seismics KW - source AU - Hobbs, RW AU - Klaeschen, D AU - Sallarès, V AU - Vsemirnova, E AU - Papenberg, C PY - 2009/11/05/ UR - http://dx.doi.org/10.1029/2009GL040215 ER -