Schlindwein, Vera; Schmidt-Aursch, Mechita (2021): Project SWEAP: DEPAS ocean-bottom seismometer operations at the Southwest Indian Ridge in 2012-2013 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.932358
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Project SWEAP (Southwest Indian Ridge Earthquakes and Plumes), a collaborative effort led by the Alfred-Wegener-Institute, installed a network of 10 broad-band ocean bottom seismometers (OBS) along the ultraslow-spreading Oblique Supersegment of the Southwest Indian Ridge. The presented data set covers the continuous records of 8 stations of the network provided by the DEPAS instrument pool. One station of the original network could not be recovered, another one did not return data. The instruments were spaced at roughly 15 km intervals in a triangular shape network to either side of the rift axis covering about 60 km along axis between 13°E and 13.8°E and 60 km across axis between 52°S and 52.6°S. The network design was optimized for detecting and locating deep seismicity in the area. The rift valley was filled with soft silica ooze, producing considerable delay of S-phases at selected stations. Instrument deployment started during RV Polarstern cruise ANT-XXIX/2 on December 05 2012. Instrument recovery was completed during RV Polarstern cruise ANT-XXIX/8 on November 26 2013. 5 Refraction seismic lines were acquired by RV Polarstern cruise ANT-XXIX/8 from November 17 to 19 in 2013. All OBS could be synchronized with the GPS clock upon recovery such that skew values describing the clock drift are available for all stations.
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
Boebel, Olaf (2013): The Expedition of the Research Vessel Polarstern to the Antarctic in 2012/2013 (ANT-XXIX/2). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 671, 99 pp, https://doi.org/10.2312/BzPM_0671_2013
Boebel, Olaf (2014): Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXIX/2, Cape Town - Punta Arenas, 2012-11-30 - 2013-01-18 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.841010
Schlindwein, Vera (2014): Station list and links to master tracks in different resolutions of POLARSTERN cruise ANT-XXIX/8, Cape Town - Cape Town, 2013-11-09 - 2013-12-16 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.829624
Schlindwein, Vera (2014): The Expedition of the Research Vessel Polarstern to the Antarctic in 2013 (ANT-XXIX/8). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 672, 111 pp, https://doi.org/10.2312/BzPM_0672_2014
Project(s):
Marine Geophysics @ AWI (AWI_GeoPhy)
Funding:
Coverage:
Median Latitude: -52.360850 * Median Longitude: 13.454875 * South-bound Latitude: -52.583000 * West-bound Longitude: 13.062800 * North-bound Latitude: -52.028300 * East-bound Longitude: 13.841800
Date/Time Start: 2012-12-05T09:58:00 * Date/Time End: 2013-11-26T11:03:00
Minimum ELEVATION: -4197 m a.s.l. * Maximum ELEVATION: -2653 m a.s.l.
Event(s):
2E_SWE02 (PS81/028-1, PS81/632-1) * Latitude: -52.363000 * Longitude: 13.074200 * Date/Time Start: 2012-12-06T00:10:00 * Date/Time End: 2013-11-26T11:03:00 * Elevation: -3288.0 m * Method/Device: Ocean bottom seismometer (OBS) * Comment: Deployment: ANT-XXIX/2, Recovery: ANT-XXIX/8
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Schlindwein, Vera | |||
| 2 | Optional event label | Event 2 | Schlindwein, Vera | |||
| 3 | Project | Project | Schlindwein, Vera | |||
| 4 | Principal investigator | PI | Schlindwein, Vera | |||
| 5 | Code | Code | Schlindwein, Vera | FDSN Network Code | ||
| 6 | Station label | Station | Schlindwein, Vera | |||
| 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 | Clock skew | Skew | µs | Schlindwein, Vera | ||
| 15 | Recorder type | Recorder | Schlindwein, Vera | |||
| 16 | Recorder, serial number | Recorder SN | Schlindwein, Vera | |||
| 17 | Seismometer type | Seismometer | Schlindwein, Vera | |||
| 18 | Seismometer, serial number | Seismometer SN | Schlindwein, Vera | |||
| 19 | Seismometer gain | Seismometer gain | Schlindwein, Vera | |||
| 20 | Hydrophone type | Hydrophone | Schlindwein, Vera | |||
| 21 | Hydrophone, serial number | Hydrophone SN | Schlindwein, Vera | |||
| 22 | Hydrophone gain | Hydrophone gain | Schlindwein, Vera | |||
| 23 | Hydrophone polarity | Hydrophone pol | Schlindwein, Vera | |||
| 24 | Sampling rate | Sampling rate | Hz | Schlindwein, Vera | ||
| 25 | Cruise/expedition | Expedition | Schlindwein, Vera | |||
| 26 | Binary Object | Binary | Schlindwein, Vera | Auxiliary data | ||
| 27 | Binary Object | Binary | Schlindwein, Vera | Log file | ||
| 28 | Binary Object | Binary | Schlindwein, Vera | Raw data |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
184 data points