Jegen, Marion; Geissler, Wolfram H; Ritter, Oliver; Weckmann, Ute (2021): Magnetotelluric impedances of marine measurements conducted during Maria S. Merian cruise MSM17/1 and MSM17/2 in 2011, Walvis Ridge, Namibian Margin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.931440
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Abstract:
The magnetotelluric impedance tensor elements and errors were calculated with the software BIRRP (Chave &Thomson, 2004; doi:10.1111/j.1365-246X.2004.02203.x). Magnetotelluric measurements were conducted from December 2010 to January 2011 at the Walvis Ridge, offshore Namibia. Coordinates of the MT stations are included in the EDI files and cover an area at ~8°E - 12°E, ~18°S-22°S. Station deployment and recovery was conducted on the two cruises MSM17/1 and MSM17/2 on German research vessel Maria S. Merian as part of the SPP1375 priority program SAMPLE. The SAMPLE project focused on the processes linked to continental margin formation.
Supplement to:
Franz, Gesa; Moorkamp, Max; Jegen, Marion; Berndt, Christian; Rabbel, Wolfgang (2021): Comparison of Different Coupling Methods for Joint Inversion of Geophysical Data: A Case Study for the Namibian Continental Margin. Journal of Geophysical Research: Solid Earth, 126(12), https://doi.org/10.1029/2021JB022092
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 61089689: Priority Programme 1375 SAMPLE: South Atlantic Margin Processes and Links with Onshore Evolution
Coverage:
Median Latitude: -19.776339 * Median Longitude: 10.621271 * South-bound Latitude: -21.941000 * West-bound Longitude: 8.736670 * North-bound Latitude: -18.136833 * East-bound Longitude: 11.831500
Date/Time Start: 2010-12-04T15:34:00 * Date/Time End: 2011-01-06T14:28:59
Minimum Elevation: -4211.9 m * Maximum Elevation: -333.5 m
Event(s):
MSM17/1_1085-2 (OBMT 01) * Latitude: -18.136833 * Longitude: 9.938167 * Date/Time: 2010-12-04T15:34:00 * Elevation: -4211.9 m * Recovery: MSM17/2_28-1 * Location: South Atlantic Ocean * Campaign: MSM17/1 * Basis: Maria S. Merian * Method/Device: Ocean Bottom EM / MT (OBMT) * Comment: Deployment
MSM17/1_1089-1 (OBMT 02) * Latitude: -18.344500 * Longitude: 10.038333 * Date/Time: 2010-12-04T19:39:00 * Elevation: -4107.9 m * Recovery: MSM17/2_27-1 * Location: South Atlantic Ocean * Campaign: MSM17/1 * Basis: Maria S. Merian * Method/Device: Ocean Bottom EM / MT (OBMT) * Comment: Deployment
MSM17/1_1092-2 (OBMT 03) * Latitude: -18.518833 * Longitude: 10.123667 * Date/Time: 2010-12-04T21:23:00 * Elevation: -4035.1 m * Recovery: MSM17/2_26-1 * Location: South Atlantic Ocean * Campaign: MSM17/1 * Basis: Maria S. Merian * Method/Device: Ocean Bottom EM / MT (OBMT) * Comment: Deployment
Comment:
EDI files are a standard technical format for Magnetotelluric data as defined by the SEG in 1988: https://www.seg.org/Portals/0/SEG/News%20and%20Resources/Technical%20Standards/seg_mt_emap_1987.pdf
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Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | Jegen, Marion | Deployment | ||
2 | Optional event label | Event 2 | Jegen, Marion | Deployment | ||
3 | Station label | Station | Jegen, Marion | Recovery | ||
4 | Date/time start | Date/time start | Jegen, Marion | Deployment | ||
5 | Date/time end | Date/time end | Jegen, Marion | Recovery | ||
6 | Binary Object | Binary | Jegen, Marion | BIRRP software | ||
7 | Binary Object (File Size) | Binary (Size) | Bytes | Jegen, Marion | BIRRP software |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
128 data points