2026-06-10T06:16:06Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:85952025-12-05T14:13:18ZDOIDBDOIDB.GIPP

false4DOIDB.GIPP 10.5880/GIPP-MT.202127.1 Nienhaus, Hannah Hannah Nienhaus 0009-0000-5684-9626 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany School of Ocean and Earth Science, University of Southampton, Southampton, UK Yogeshwar, Pritam Pritam Yogeshwar 0000-0001-9425-9838 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany LIAG Institute for Applied Geophysics, Hannover, Germany Mörbe, Wiebke Wiebke Mörbe 0000-0002-3959-6951 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany LIAG Institute for Applied Geophysics, Hannover, Germany Tezkan, Bülent Bülent Tezkan 0000-0002-3326-6353 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany GFZ Data Services 2025 Audiomagnetotelluric Namibia Sperrgebiet National Park impact crater SFB 1211 Earth Remote Sensing Instruments > Passive Remote Sensing > Magnetic Field/Electric Field Instruments > Probes EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > MAGNETIC FIELD > GEOMAGNETIC INDUCTION Solar/Space Observing Instruments > Magnetic Field/Electric Field Instruments Nienhaus, Hannah Hannah Nienhaus 0009-0000-5684-9626 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany School of Ocean and Earth Science, University of Southampton, Southampton, UK Yogeshwar, Pritam Pritam Yogeshwar 0000-0001-9425-9838 Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany LIAG Institute for Applied Geophysics, Hannover, Germany GIPP-MT Team GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Dataset https://gfzpublic.gfz.de/pubman/item/item_5037229 10.2312/GFZ.b103-19065 10.2312/GFZ.b103-15082 10.1016/j.gloplacha.2023.104259 10.17815/jlsrf-2-128 https://www.gfz.de/gipp CC BY 4.0 The Roter Kamm Crater is a 3.7-million-year-old meteoritic impact crater in the Sperrgebiet National Park in southern Namibia. The Sperrgebiet National Park, officially Tsau ǁKhaeb (Sperrgebiet) National Park, is a national park and former diamond mining area in southern Namibia. Since 1908 the public has had no access to the area and even when it was proclaimed a national park in 2008 most of the restrictions remained, leaving the environment mainly undisturbed and unexplored.

The geophysical exploration of the Roter Kamm Crater can bring valuable information about its internal structure, as only a very limited number of geophysical studies had been carried out at this site. Prior gravimetry and (airborne-)magnetic measurements indicate a bowl-shaped anomaly underneath the crater with an estimated maximum sedimentary thickness of 400 m or higher.

To be able to image the the crater infill appropriatly, two electromagnetic methods were applied: the Transient Electromagnetic (TEM) and the Audiomagnetotelluric (AMT) method. The AMT data set was planned as a complementary data set to the more extensive TEM data set to ensure the imaging of the lower boundary of the sedimentary infill.

This data publication (10.5880/GIPP-MT.202127.1) encompasses a detailed report in pdf format with a description of the project, information on the experimental setup, data collection, instrumentation used, recording configuration and data quality. The folder structure and content of the data repository are described in detail in Ritter et al. (2019). Time-series data are provided in EMERALD format (Ritter et al., 2015).
The Geophysical Instrument Pool Potsdam (GIPP) provides field instruments for (temporary) seismological studies (both controlled source and earthquake seismology) and for magnetotelluric (electromagnetic) experiments. The GIPP is operated by the GFZ German Research Centre for Geosciences. The instrument facility is open for academic use. Instrument applications are evaluated and ranked by an external steering board. See Haberland and Ritter (2016) and https://www.gfz.de/gipp for more information.
Location of the AMT Survey 16.2078 16.3408 -27.7708 -27.6579 Deutsche Forschungsgemeinschaft 268236062