LFASE borehole array data acquisition and reduction summary
Bolmer, S. Thompson
Swift, Stephen A.
Stephen, Ralph A.
MetadataShow full item record
On the Low Frequency Acoustic - Seismic Experiment (LFASE), carried out at DSDP hole 534A in August, 1989, WHOI was responsible for acquiring data from a twelve channel borehole seismic array. Data were acquired both on-board while tethered to the array and autonomously in a seafloor package. Seismic source data (explosives and airguns) and ambient noise data were recorded. This report describes the nature of data acquired, reviews the data reduction procedure from field format to ROSE data format, and includes examples of the data. A total of918.6 Mbytes of data were acquired (769 Mbytes in the shipboard recording mode and 149.6 Mbytes in the seafloor recording mode). Approximately 85 explosive shots, 2000 airgun shots, and 10 hours of ambient noise data were recorded.
Showing items related by title, author, creator and subject.
Stephen, Ralph A.; Koelsch, Donald E.; Berteaux, Henri O.; Bocconcelli, Alessandro; Bolmer, S. Thompson; Cretin, J.; Etourmy, N.; Fabre, A.; Goldsborough, Robert G.; Gould, Matthew R.; Kery, Sean M.; Laurent, J.; Omnes, G.; Peal, Kenneth R.; Swift, Stephen A.; Turpening, R.; Zani, A. Cleo (Woods Hole Oceanographic Institution, 1993-01)The Seafloor Borehole Array Seismic System (SEABASS) has been developed to measure the pressure and three dimensional particle velocity of the VLF sound field (2-50HZ) below the seafloor in the deep ocean (water depths ...
Heaney, Kevin D.; Campbell, Richard L.; Murray, James J.; Baggeroer, Arthur B.; Scheer, Edward K.; Stephen, Ralph A.; D'Spain, Gerald L.; Mercer, James A. (Acoustical Society of America, 2013-10)During the North Pacific Acoustic Laboratory Philippine Sea 2009 experiment, towed array receptions were made from a towed source as the two ships transited from a separation of several Convergence Zones through a Closest ...
South China Sea internal tide/internal waves-impact on the temporal variability of horizontal array gain at 276 Hz Orr, Marshall H.; Pasewark, Bruce H.; Wolf, Stephen N.; Lynch, James F.; Schroeder, Theodore; Chiu, Ching-Sang (IEEE, 2004-10)The temporal variability of the spatial coherence of an acoustic signal received on a bottomed horizontal array has been calculated for 276-Hz narrow-band signals. A conventional plane wave beamformer was applied to the ...