Wilken, Dennis: FD-EMI prospection data Japsand wreck [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.941668 (dataset in review)
Abstract:
This dataset represents frequency domain Electromagnetic induction (EMI) data created by using electromagnetic waves generated in a transmitter and recorded in three receiver coils to create maps of electromagnetic subsoil properties at different sensing depths. A CMD Mini-Explorer by GF Instruments was used. The device consists of one transmitter and three receiver coils. The planes of the coils were oriented horizontally (horizontal coplanar - HCP). The distance between the transmitter and receivers are 0.32 m, 0.71 m and 1.18 m. The measurements were performed with 10 Hz sampling frequency. The area was covered by randomly walked W-E-orientated and N-S orientated tracks with an average spacing of about 0.5 m between the tracks. An RTK-GPS (Stonex S9i) was connected to the device using a fixed fibreglass rod at a distance of 2 m to the coils, minimizing the influence of the electronics on the data. The data was collected July 21st 2020, to image a 17th century wooden ship wreckage in the North Sea tidal flat area west of the island of Hooge(Germany) (Coordinates, geographic WGS84, are provided in the data list).
Related to:
Zwick, Daniel (2021): A late 17th-century “Double Dutch” construction in the North Frisian Wadden Sea: the case of the Hörnum Odde wreck on the island of Sylt, Germany. Archaeonautica, (21), 205-2011, https://doi.org/10.4000/archaeonautica.3367
Funding:
German Research Foundation (DFG), grant/award no. 390870439: EXC 2150: ROOTS – Social, Environmental, and Cultural Connectivity in Past Societies
Coverage:
Median Latitude: 54.582223 * Median Longitude: 8.481246 * South-bound Latitude: 54.582142 * West-bound Longitude: 8.481076 * North-bound Latitude: 54.591701 * East-bound Longitude: 8.481422
Date/Time Start: 2020-07-21T18:02:07 * Date/Time End: 2020-07-21T18:16:55
Minimum ALTITUDE: 3.647 m * Maximum ALTITUDE: 3.876 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | LATITUDE | Latitude | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Geocode | |
| 2 | LONGITUDE | Longitude | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Geocode | |
| 3 | DATE/TIME | Date/Time | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Geocode | |
| 4 | ALTITUDE | Altitude | m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Geocode |
| 5 | Conductivity, electrical | EC | mS/m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Cond.1 |
| 6 | Inphase ratio | Inph | ng/kg | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inph.1, given in ppt |
| 7 | Conductivity, electrical | EC | mS/m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Cond.2 |
| 8 | Inphase ratio | Inph | ng/kg | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inph.2, given in ppt |
| 9 | Conductivity, electrical | EC | mS/m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Cond.3 |
| 10 | Inphase ratio | Inph | ng/kg | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inph.3, given in ppt |
| 11 | Conductivity, electrical | EC | mS/m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inv.Cond.1 |
| 12 | Conductivity, electrical | EC | mS/m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inv.Cond.2 |
| 13 | Thickness | Thick | m | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inv. |
| 14 | Root Mean Square error | RMS | % | Wilken, Dennis | CMD Mini-Explorer by GF Instruments | Inv. |
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:
44470 data points
Download Data (login required)
View dataset as HTML (shows only first 2000 rows)