Lüdmann, Thomas; Betzler, Christian; Lindhorst, Sebastian (2022): Sediment echosounder raw data (Atlas Parasound P70 echosounder working area dataset) of RV METEOR cruise M74/4, Maldivian carbonate platform [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943829, In: Lüdmann, T et al. (2022): Hydroacoustic and seismic data from the Maldivian carbonate platform acquired during the years 2007-2014 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.943834
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Published: 2022-05-09 • DOI registered: 2022-06-22 • Last updated: 2024-04-20
Abstract:
Parasound profiles are acquired witth the hull mounted echosounder device P70 (Atlas Elektronik GmbH), witch uses the parametric effect in which a secondary low-frequency signal is generated from the emission of two high-frequency primary signals. The simultaneously emitted frequencies were 18 kHz and 22 kHz, which constructively interfere resulting in a narrow beam cone of 4°.
Related to:
Lüdmann, Thomas; Betzler, Christian; Lindhorst, Sebastian (2022): The Maldives, a key location of carbonate drifts. Marine Geology, 450, 106838, https://doi.org/10.1016/j.margeo.2022.106838
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03G0667A: NEOMA - The Neogene of the Maldives
Coverage:
Median Latitude: 4.633199 * Median Longitude: 72.893971 * South-bound Latitude: 4.633100 * West-bound Longitude: 72.767548 * North-bound Latitude: 4.633298 * East-bound Longitude: 73.020395
Date/Time Start: 2007-12-05T19:51:00 * Date/Time End: 2007-12-05T23:11:00
Event(s):
M74/4_0_Underway-5 * Latitude Start: 4.633298 * Longitude Start: 72.767548 * Latitude End: 4.633100 * Longitude End: 73.020395 * Date/Time Start: 2007-12-05T19:51:00 * Date/Time End: 2007-12-05T23:11:00 * Campaign: M74/4 (NEOMA: The Neogene of the Maldives) * Basis: Meteor (1986) * Method/Device: ATLAS Parasound P70 Deep-Sea Parametric Sub-Bottom Profiler (P70)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Lüdmann, Thomas | |||
| 2 | Start of data file recording, date/time | File start date/time | Lüdmann, Thomas | |||
| 3 | Start of data file recording, latitude | File start latitude | Lüdmann, Thomas | |||
| 4 | Start of data file recording, longitude | File start longitude | Lüdmann, Thomas | |||
| 5 | Stop of data file recording, date/time | File stop date/time | Lüdmann, Thomas | |||
| 6 | Stop of data file recording, latitude | File stop latitude | Lüdmann, Thomas | |||
| 7 | Stop of data file recording, longitude | File stop longitude | Lüdmann, Thomas |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
14 data points
Data
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| 1 Binary | 2 File start date/time | 3 File start latitude | 4 File start longitude | 5 File stop date/time | 6 File stop latitude | 7 File stop longitude |
|---|---|---|---|---|---|---|
| M74_P_22.pdf | 2007-12-05T19:51:00.000 | 4.633298 | 72.767548 | 2007-12-05T23:11:00.000 | 4.6331 | 73.020395 |
| M74_P_22.seg | 2007-12-05T19:51:00.000 | 4.633298 | 72.767548 | 2007-12-05T23:11:00.000 | 4.6331 | 73.020395 |