Weigelt, Estella; McNeil, Mardi; Krastel, Sebastian; Gebhardt, Andrea Catalina (2026): Sediment echosounder processed data (Atlas Parasound P70 echosounder entire dataset) of RV POLARSTERN during cruise PS141 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.996710
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Published: 2026-08-20 • DOI registered: 2026-08-20
Abstract:
Sediment echosounder (Teledyne Parasound P70 echosounder) data are generally retrieved to get information on the characteristics of the upper tens of meters of the sub-seafloor. The data was collected on board the POLARSTERN during the cruise PS141 using the Teledyne Parasound P70 parametric sub-bottom echosounder mounted on the hull. A secondary low frequency of 4 kHz was used. Data was converted from the PS3 recording format to the SEGY format using the software ps32sgy written by Hanno Keil (University Bremen), in two versions: frequency and envelope. Envelope data exist along the entire trackline, while frequency data were generated for the research area in Antarctic waters only. Navigation was converted to UKOOA format with coordinates in WGS84. SGY and UKOOA fils are named using the starting date and time of the profile (YYYY_MMDD_HHMMSS). Due to the 12-digits-restriction of profile names in the UKOOA format, the first column of the UKOOA file contains a shortened version of the SGY file name (YYMMDDHHMMSS). During POLARSTERN cruise PS141, Parasound data formed the basis for determination of appropriate coring locations. The entire dataset of cruise PS141 is archived here, including data from international waters off Australia (Tasmania) to off Namibia. The target region is the continental shelf of Antarctica between 85°E and 115°E, off the ice margin from Wilhelm-II to Wilkes Land.
Supplement to:
Tobisch, Chiara Alina; Klages, Johann Philipp; Barrett, R S; Hochmuth, Katharina; Mühlberger-Krause, Timo; Baumann, L M; Gohl, Karsten; Krastel, Sebastian (2026): Internal Structure and Formation Process of a Giant East Antarctic Grounding-Zone Wedge. Geophysical Research Letters, https://doi.org/10.1029/2025GL121369
Related to:
Krastel, Sebastian (2025): The Expedition PS141 of the Research Vessel POLARSTERN to the Davis Sea and Mawson Sea in 2024. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 793, 191 pp, https://doi.org/10.57738/BZPM_0793_2025
Source:
Weigelt, Estella; McNeil, Mardi; Krastel, Sebastian; Gebhardt, Andrea Catalina (2025): Sediment echosounder raw data (Atlas Parasound P70 echosounder entire dataset) of RV POLARSTERN during cruise PS141 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.980755
Coverage:
Median Latitude: -40.173153 * Median Longitude: 78.083436 * South-bound Latitude: -44.143814 * West-bound Longitude: 14.997291 * North-bound Latitude: -36.202493 * East-bound Longitude: 141.169581
Date/Time Start: 2024-02-25T08:12:24 * Date/Time End: 2024-04-10T03:11:59
Minimum Elevation: -4809.0 m * Maximum Elevation: -4569.0 m
Event(s):
PS141_0_Underway-39 * Latitude Start: -44.143814 * Longitude Start: 141.169581 * Latitude End: -36.202493 * Longitude End: 14.997291 * Date/Time Start: 2024-02-07T19:34:39 * Date/Time End: 2024-04-10T05:00:34 * Elevation Start: -4569.0 m * Elevation End: -4809.0 m * O2A Registry URI: https://registry.o2a-data.de/items/1392 * Campaign: PS141 (EASI-3) * Basis: Polarstern * Method/Device: ATLAS Parasound P70 Deep-Sea Parametric Sub-Bottom Profiler (P70) * Comment: Event shows start point (date/time & coordinates) of first/last data record using Atlas Parasound P70 echosounder during cruise PS141
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Weigelt, Estella | Geocode – start | ||
| 2 | LATITUDE | Latitude | Weigelt, Estella | Geocode – start | ||
| 3 | LONGITUDE | Longitude | Weigelt, Estella | Geocode – start | ||
| 4 | LATITUDE | Latitude | Weigelt, Estella | Geocode – end | ||
| 5 | LONGITUDE | Longitude | Weigelt, Estella | Geocode – end | ||
| 6 | Binary Object | Binary | Weigelt, Estella | |||
| 7 | Binary Object (File Size) | Binary (Size) | Bytes | Weigelt, Estella | ||
| 8 | Binary Object (Media Type) | Binary (Type) | Weigelt, Estella | |||
| 9 | File content | Content | Weigelt, Estella |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
1364 data points