Karstens, Jens; Preine, Jonas (2023): 2D seismic reflection data from POSEIDON cruise POS538, offshore Santorini [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956579
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Abstract:
During research cruise POS538, 2D seismic reflection data were collected onboard research vessel FS POSEIDON in November 2019. The profiles cover the Santorini caldera and the neighboring basins around Santorini. Some profiles were used as side survey data for IODP expedition 398 and will only be available after the IODP embargo period. The dataset consists of SEGY files with UTM coordinates stored in bytes 73 and 77 and shot points stored in byte 5. The coordinate system is UTM35 WGS84. Multi-channel seismic data of cruise POS538 were acquired with a high lateral resolution (CMP spacing of ~1.56 m). As a seismic source, we used a GI-pulser that was operated in harmonic mode with primary and secondary volumes of 45 in3. Seismic energy was recorded by multiple concatenated Geometrics GeoEel streamer segments, resulting in active streamer sections ranging from 190 m to 250 m in length. Processing comprised trace-editing, simple frequency filtering (15-1500 Hz), and multiple suppression by means of surface-related multiple elimination (SRME). This was followed by spherical divergence correction, time-variant frequency filtering, pre-stack time migration, top-muting, and white-noise removal. With a main frequency of 125 Hz, the vertical resolution can be approximated to approx. 4-8 m. For more information, see the cruise report (doi:10.3289/cr_pos538).
Supplement to:
Karstens, Jens; Preine, Jonas; Crutchley, Gareth J; Kutterolf, Steffen; van der Bilt, Willem G M; Hooft, Emilie E E; Druitt, Timothy H; Schmid, Florian; Cederstrøm, Jan Magne; Hübscher, Christian; Nomikou, Paraskevi; Carey, Steven N; Kühn, Michel; Elger, Judith; Berndt, Christian (2023): Revised Minoan eruption volume as benchmark for large volcanic eruptions. Nature Communications, 14(1), 2497, https://doi.org/10.1038/s41467-023-38176-3
Related to:
Karstens, Jens; Crutchley, Gareth J; Elger, Judith; Kühn, Michel; Schmid, Florian; Dalla Valle, Giacomo; Preine, Jonas; Nomikou, Paraskevi (2020): R/V Poseidon Cruise Report 538 - THESEUS Tsunami hazard of explosive submarine eruptions, 7th October - 28th October, 2019 Cartagena (Spain) - Heraklion (Greece). GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany, 106 pp, https://doi.org/10.3289/cr_pos538
Coverage:
Median Latitude: 36.464035 * Median Longitude: 25.467753 * South-bound Latitude: 36.135660 * West-bound Longitude: 25.101778 * North-bound Latitude: 36.801301 * East-bound Longitude: 25.960379
Date/Time Start: 2019-10-13T13:38:00 * Date/Time End: 2019-10-27T15:46:00
Minimum Elevation: -1577.0 m * Maximum Elevation: -48.0 m
Event(s):
POS538_2-1_P1001 * Latitude Start: 36.387029 * Longitude Start: 25.223916 * Latitude End: 36.394773 * Longitude End: 25.204674 * Date/Time Start: 2019-10-13T13:38:00 * Date/Time End: 2019-10-13T14:14:00 * Elevation Start: -350.0 m * Elevation End: -391.0 m * Location: Aegean Sea * Campaign: POS538 (THESEUS) * Basis: Poseidon * Method/Device: Multichannel seismics (MCSEIS)
POS538_2-1_P1002 * Latitude Start: 36.398371 * Longitude Start: 25.217983 * Latitude End: 36.367670 * Longitude End: 25.215641 * Date/Time Start: 2019-10-13T14:14:00 * Date/Time End: 2019-10-13T15:05:00 * Elevation Start: -391.0 m * Elevation End: -396.0 m * Location: Aegean Sea * Campaign: POS538 (THESEUS) * Basis: Poseidon * Method/Device: Multichannel seismics (MCSEIS)
POS538_2-1_P1003 * Latitude Start: 36.368799 * Longitude Start: 25.212773 * Latitude End: 36.433024 * Longitude End: 25.214569 * Date/Time Start: 2019-10-13T15:05:00 * Date/Time End: 2019-10-13T15:58:00 * Elevation Start: -396.0 m * Elevation End: -305.0 m * Location: Aegean Sea * Campaign: POS538 (THESEUS) * Basis: Poseidon * Method/Device: Multichannel seismics (MCSEIS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Karstens, Jens | |||
| 2 | Profile | Profile | Karstens, Jens | |||
| 3 | Common Midpoint | CMP | Karstens, Jens | start profile | ||
| 4 | Common Midpoint | CMP | Karstens, Jens | end profile | ||
| 5 | Latitude of event | Latitude | Karstens, Jens | |||
| 6 | Longitude of event | Longitude | Karstens, Jens | |||
| 7 | Latitude of event 2 | Latitude 2 | Karstens, Jens | |||
| 8 | Longitude of event 2 | Longitude 2 | Karstens, Jens | |||
| 9 | UTM Easting, Universal Transverse Mercator | UTM east | m | Karstens, Jens | start profile | |
| 10 | UTM Northing, Universal Transverse Mercator | UTM north | m | Karstens, Jens | start profile | |
| 11 | UTM Easting, Universal Transverse Mercator | UTM east | m | Karstens, Jens | end profile | |
| 12 | UTM Northing, Universal Transverse Mercator | UTM north | m | Karstens, Jens | end profile | |
| 13 | UTM Zone, Universal Transverse Mercator | UTM Zone | Karstens, Jens | |||
| 14 | Binary Object | Binary | Karstens, Jens | |||
| 15 | Binary Object (File Size) | Binary (Size) | Bytes | Karstens, Jens |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
432 data points