Processed Ocean Bottom Hydrophone (OBH) record section images from the Great Meteor seamounts, northeast Atlantic Ocean (R/V Meteor, 1990) ...
The OBH data was acquired along five ~200 km-long profiles during R/V METEOR cruise No. 12/2 in the summer of 1990. Navigation during the cruise was controlled by the Global Positioning System (GPS). R/V Meteor was equipped with a source array of four 19-litre airguns, providing a total volume of 76...
| Main Authors: | , |
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| Format: | Still Image |
| Language: | English |
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Marine Geoscience Data System (MGDS)
2024
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| Online Access: | https://dx.doi.org/10.60521/331767 https://www.marine-geo.org/doi/10.60521/331767 |
| Summary: | The OBH data was acquired along five ~200 km-long profiles during R/V METEOR cruise No. 12/2 in the summer of 1990. Navigation during the cruise was controlled by the Global Positioning System (GPS). R/V Meteor was equipped with a source array of four 19-litre airguns, providing a total volume of 76 litres. Guns were towed at a depth of ~8 m and fired every 2 minutes at a pressure of ~140 bars, providing a dominant source frequency of 6 Hz. The OBH instruments were a prototype supplied by University of Hamburg and used in conjunction with University of Bergen air guns. The continuously-recorded analogue data were digitized at 100 samples per second and stored on Exabyte tapes. The digitised data was reprocessed in 2022/2023 using a predictive deconvolution and a simple Butterworth bandpass filtered from 4 to 15 Hz, and stored in SEG-Y file format. SEG-Y files have been reduced by 8 km/s. Record sections start at t = 0. These record section images are in JPEG format. The data was collected under Deutsche ... |
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