Ranero, César R; Ugalde, Arantza; Gómez de la Peña, Laura; Prada, Manel (2024): Pre-stack time-migrated seismic profile ATLANTIS-I, 31ºN Central Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973759
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Published: 2024-11-28 • DOI registered: 2025-01-15
Abstract:
Pre-stack time-migrated seismic section across ATLANTIS-I profile in 2022 at 31ºN Central Atlantic. The seismic data were acquired with a seismic source that consisted of two sub-arrays of airguns with total capacity of ~4000 c.i., towed from the stern of the boat at 15 m of depth, and fired every 100 m. Seismic data were collected with a 240-channel, 3-km-long streamer towed from the stern of the boat at 19 m of depth. Data processing included streamer geometry for common mid-point geometry, a two-window statistical Wiener deconvolution, velocity analysis every 5 km, stacking, and time migration using a finite-differences algorithm and a geological meaningful Vp model. Final display is shown with a Butterworth minimum phase band pass filter (3-60 Hz) and a median automatic gain control (AGC) with a 2 second sliding window to balance amplitudes.
Funding:
Spanish Ministry of Science, Innovation and Universities (MICINN), grant/award no. PID2019‐109559RB‐I00: ATLANTIS
Coverage:
Median Latitude: 30.890100 * Median Longitude: -19.050950 * South-bound Latitude: 30.742300 * West-bound Longitude: -20.187500 * North-bound Latitude: 31.037900 * East-bound Longitude: -17.914400
Date/Time Start: 2022-06-24T12:48:02 * Date/Time End: 2022-06-25T13:01:55
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Prada, Manel | |||
| 2 | Binary Object | Binary | Prada, Manel | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Prada, Manel |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
8 data points
Data
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| 1 Content | 2 Binary | 3 Binary (Size) [Bytes] |
|---|---|---|
| SEGY file contianint the time-migrated seismic profile | Atlantis_time_migration_15s.segy | 514.8 MBytes |
| header inforamtion of the SEGY file | HEADERS.txt | 372 Bytes |
| Navigation file: shot number, year, day, and time of acquisition, and longitude and latitude in degrees | Navigation_Atlantis_I.txt | 82.8 kBytes |
| Figure showing the time-migrated section | Seismic_line.pdf | 9.3 MBytes |