Schlindwein, Vera; Schmidt-Aursch, Mechita; Plaza-Faverola, Andreia (2026): Project Jøtul: DEPAS ocean-bottom seismometer operations at the Jøtul vent field, Knipovich Ridge, in 2023-2024 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.994133 (DOI registration in progress)
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Published: 2026-05-20
Abstract:
The seismic network (FDSN code 3S) around Jøtul vent field covers a region of magmatic accretion at the ultraslow spreading Knipovich Ridge. The network consists of an inner network of about 15 km aperture concentrated around the axial volcanic ridge and the adjacent inferred detachment fault hosting Jøtul vent field. Six DEPAS ocean bottom seismometers (OBS) of type LOBSTER equipped with KUM 6d6 data loggers and Trillium Compact broadband 3-component seismometers were deployed on 28 July 2023 by RV Polarstern. One OBS of Nammu type containing a KUM 6d7 data logger complemented the network.
This network recorded for a period of 13 months to capture also episodic seismicity. To improve earthquake location, resolution and depth penetration of seismic tomography, we deployed on 15 June 2024 eight additional OBS from board RV Helmer Hanssen in cooperation with the University of Tromsø. We achieved a total network aperture of about 50 km targeting the seismicity around the axial volcanic ridge and the off-axis area of highly elevated, fault-controlled mountains. The vent field area itself was surrounded by a triangle of stations. All instruments were successfully recovered during cruise MSM131 on RV Maria S. Merian between August 23 and 25, 2024.
The data set consists of continuous raw data of three seismometer channels and one hydrophone channel sampled at 100 Hz (long-term network) and 250 Hz (short-term network), respectively. OBS positions at the seafloor were determined by interpolation at 2/3 of the distance between the deployment and recovery position at the seafloor. Position accuracy is estimated to be about 100 m. Skew values were obtained for all stations and reached values of up to 14 s.
Related to:
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung; et al. (2017): DEPAS (Deutscher Geräte-Pool für amphibische Seismologie): German Instrument Pool for Amphibian Seismology. Journal of large-scale research facilities JLSRF, 3, https://doi.org/10.17815/jlsrf-3-165
Bohrmann, Gerhard; Anagnostou, Eirini; Asatrian, Kristina; Barrenechea Angeles, Ines; Bergenthal, Markus; Berger, Frederic; Büttner, Hauke; Diehl, Alexander; Feddersen, Greta; Franke, Rosalia; Jain, Apoorvi; Kienitz, Tim; Knutsen, Stig Morten; Kopiske, Eberhard; Malnati, Janice; Marcon, Yann; Meckel, Eva-Maria; Meyer, Maximilian; Pilot, Matthias; Rehage, Ralf; Reuter, Christian; Ribeiro, Pedro A; Röhler, Aaron; Römer, Miriam; Schillai, Sophia; Schlindwein, Vera; Schröder, Marcel; Spiesecke, Ulli; Streuff, Katharina Teresa; Strmic-Palinkas, Sabina; von Wahl, Till (2025): The Jøtul hydrothermal field - Magma-sediment interaction at the ultraslow-spreading Knipovich Ridge, Cruise No. MSM131, 18 August - 28 September 2024, Reykjavik (Iceland) - Emden (Germany). MARIA S. MERIAN-Berichte, Begutachtungspanel Forschungsschiffe, MSM131, 102 pp, https://doi.org/10.48433/cr_msm131
Plaza-Faverola, Andreia; Schlindwein, Vera; Pilot, Matthias; Cooke, Frances Ann; Sharma, Rohan; Toh, Yun Fann; Jensen, Stormer A; Kirk, Henning; Pfeiffer, Adalbert (2026): Ocean bottom seismics and acoustic surveys on fluid venting and seepage sites: West Barents Sea, Knipovich Ridge and Prins Karl Forland. Norwegian Research Information Repository (NVA), https://hdl.handle.net/11250/5509581
Schlindwein, Vera (2023): The Expedition PS137 of the Research Vessel POLARSTERN to the Arctic Ocean in 2023. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 781, 121 pp, https://doi.org/10.57738/BzPM_0781_2023
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS137_02: Geophysik
Coverage:
Median Latitude: 77.453267 * Median Longitude: 7.585805 * South-bound Latitude: 77.250800 * West-bound Longitude: 6.419870 * North-bound Latitude: 77.663200 * East-bound Longitude: 8.192810
Date/Time Start: 2023-07-28T16:04:00 * Date/Time End: 2024-08-25T18:44:00
Minimum ELEVATION: -3598 m a.s.l. * Maximum ELEVATION: -1965 m a.s.l.
Event(s):
3S_JOT01 (MSM131_7) * Latitude: 77.550800 * Longitude: 7.545420 * Date/Time Start: 2023-07-28T16:04:00 * Date/Time End: 2024-08-23T22:35:48 * Elevation: -3467.0 m * Location: Knipovich Ridge * Method/Device: Ocean bottom seismometer (OBS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Schlindwein, Vera | |||
| 2 | Project | Project | Schlindwein, Vera | |||
| 3 | Principal investigator | PI | Schlindwein, Vera | |||
| 4 | Code | Code | Schlindwein, Vera | FDSN Network Code | ||
| 5 | Station label | Station | Schlindwein, Vera | |||
| 6 | Date/time start | Date/time start | Schlindwein, Vera | Synchronisation | ||
| 7 | Date/time start | Date/time start | Schlindwein, Vera | Recording | ||
| 8 | Date/time start | Date/time start | Schlindwein, Vera | Deployment | ||
| 9 | LATITUDE | Latitude | Schlindwein, Vera | Geocode | ||
| 10 | LONGITUDE | Longitude | Schlindwein, Vera | Geocode | ||
| 11 | ELEVATION | Elevation | m a.s.l. | Schlindwein, Vera | Geocode | |
| 12 | Date/time end | Date/time end | Schlindwein, Vera | Recovery | ||
| 13 | Date/time end | Date/time end | Schlindwein, Vera | Recording | ||
| 14 | Date/time end | Date/time end | Schlindwein, Vera | Synchronisation | ||
| 15 | Clock skew | Skew | µs | Schlindwein, Vera | ||
| 16 | Recorder type | Recorder | Schlindwein, Vera | |||
| 17 | Recorder, serial number | Recorder SN | Schlindwein, Vera | |||
| 18 | Recorder, resistance | Recorder resist | MOhm | Schlindwein, Vera | ||
| 19 | Seismometer type | Seismometer | Schlindwein, Vera | |||
| 20 | Seismometer, serial number | Seismometer SN | Schlindwein, Vera | |||
| 21 | Seismometer gain | Seismometer gain | Schlindwein, Vera | |||
| 22 | Hydrophone type | Hydrophone | Schlindwein, Vera | |||
| 23 | Hydrophone, serial number | Hydrophone SN | Schlindwein, Vera | |||
| 24 | Hydrophone gain | Hydrophone gain | Schlindwein, Vera | |||
| 25 | Hydrophone polarity | Hydrophone pol | Schlindwein, Vera | |||
| 26 | Sampling rate | Sampling rate | Hz | Schlindwein, Vera | ||
| 27 | Cruise/expedition | Expedition | Schlindwein, Vera | |||
| 28 | Comment | Comment | Schlindwein, Vera | |||
| 29 | Binary Object | Binary | Schlindwein, Vera | Auxiliary data) | ||
| 30 | Binary Object | Binary | Schlindwein, Vera | Log file | ||
| 31 | Binary Object | Binary | Schlindwein, Vera | Raw data | ||
| 32 | Binary Object | Binary | Schlindwein, Vera | Seismometer state of health |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
418 data points