Weigelt, Estella; Schmidt-Aursch, Mechita; Jokat, Wilfried: Primary seismic refraction data recorded during RV POLARSTERN cruise PS64, Arctic Ocean, profile AWI-20030400 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993462 (dataset in review)
Abstract:
As part of RV Polarstern cruise PS64, four seismic refraction profiles were collected across the East-Greenland margin to study the crustal architecture and tectonic evolution of the margin. The acquired data set covers data from a total of 126 stations, including 17 on land stations. The northernmost line AWI-20030200 crossed the margin at 76°N to gain detailed information on the evolution of the Greenland Escarpment. The other three lines (AWI-20030300, AWI-20030400, and AWI-20030500) more in the south were located in the prolongation of the Ardencaple, Godthaab and Kaiser Franz Josef fjords. Here, in addition to the ocean bottom seismometers, stations were deployed onshore to have a better image on the structure of a pronounced negative magnetic anomaly. Seismic energy was generated with an array of 5x9L airguns and a 32L airgun. The refracted signals were collected by three components ocean bottom seismometers (OBS), ocean bottom hydrophones (OBH), and onshore by three components seismometers (REFTEK) provided by GEOMAR and AWI. Profiling started on 8 August 2003 at 76.7933°N, -12.9672°W, and ended on 14 September 2003 at 73.5489°N, -24.6630°E. Along each profile between 25 and 35 recording stations were deployed. All instruments were successfully recovered after finishing the experiment. Survey information and detailed data acquisition parameters for the profiles are documented in the expedition report (Jokat, 2004) and in a metadata-file listed below.
The present data set provides primary data concerning the refraction seismic profile AWI-20030400. 14 OBS, 15 OBH and 4 Reftek stations were deployed along a 322 km long line. The data set comprises (a) a table with compiled metadata and information on all stations, and (b) seismic refraction data in segy-format stored as big-endian (*_be.sgy) and little-endian (*_le.sgy) for each channel. The EBCDIC-Headers enclosed in the seg-y files document metadata, recording parameters, and the seismic data processing sequence. Navigation information is included in the seg-y headers.
Keyword(s):
Related to:
Jokat, Wilfried; Schenke, Hans Werner (2005): Track of POLARSTERN cruise ARK-XIX/4a with links to navigation files in 1 and 10 sec interval [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.341207
Schenke, Hans Werner (2005): Swath sonar bathymetry during POLARSTERN cruise ARK-XIX/4a (PS64) with links to multibeam raw data files [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.351141
Stein, Ruediger (2019): The Expedition PS115/2 of the Research Vessel POLARSTERN to the Arctic Ocean in 2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 728, 249 pp, https://doi.org/10.2312/BzPM_0728_2019
Source:
Weigelt, Estella; Schmidt-Aursch, Mechita; Jokat, Wilfried: Raw seismic refraction data recorded during RV POLARSTERN cruise PS64, Arctic Ocean, profile AWI-20030400 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993411
Additional metadata:
Project(s):
Marine Geophysics @ AWI (AWI_GeoPhy)
Coverage:
Median Latitude: 73.680979 * Median Longitude: -17.250418 * South-bound Latitude: 73.186000 * West-bound Longitude: -21.949200 * North-bound Latitude: 74.232200 * East-bound Longitude: -12.863400
Date/Time Start: 2003-09-07T08:09:00 * Date/Time End: 2003-09-10T14:21:00
Minimum ELEVATION: -2774 m a.s.l. * Maximum ELEVATION: 155 m a.s.l.
Event(s):
ARK2009_REFTEK_430 * Latitude: 74.056500 * Longitude: -20.833800 * Date/Time Start: 2003-09-07T18:27:00 * Date/Time End: 2003-09-10T13:20:00 * Elevation: 100.0 m * Location: Greenland * Method/Device: Geophone, REFTEK
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Weigelt, Estella | |||
| 2 | Station label | Station | Weigelt, Estella | |||
| 3 | Date/time start | Date/time start | Weigelt, Estella | Sync Time UTC | ||
| 4 | Date/time start | Date/time start | Weigelt, Estella | Recording UTC | ||
| 5 | Date/time start | Date/time start | Weigelt, Estella | Deployment UTC | ||
| 6 | LONGITUDE | Longitude | Weigelt, Estella | Geocode | ||
| 7 | LATITUDE | Latitude | Weigelt, Estella | Geocode | ||
| 8 | ELEVATION | Elevation | m a.s.l. | Weigelt, Estella | Geocode | |
| 9 | Date/time end | Date/time end | Weigelt, Estella | Recovery, releaser time, local time | ||
| 10 | Date/time end | Date/time end | Weigelt, Estella | Recording UTC | ||
| 11 | Date/time end | Date/time end | Weigelt, Estella | Skewtime UTC | ||
| 12 | Clock skew | Skew | µs | Weigelt, Estella | ||
| 13 | Instrument | Instrument | Weigelt, Estella | |||
| 14 | Recorder type | Recorder | Weigelt, Estella | |||
| 15 | Recorder, serial number | Recorder SN | Weigelt, Estella | |||
| 16 | Seismometer type | Seismometer | Weigelt, Estella | |||
| 17 | Seismometer, serial number | Seismometer SN | Weigelt, Estella | |||
| 18 | Hydrophone type | Hydrophone | Weigelt, Estella | |||
| 19 | Hydrophone type | Hydrophone | Weigelt, Estella | |||
| 20 | Releaser, serial number | Releaser SN | Weigelt, Estella | |||
| 21 | Record length | Length | s | Weigelt, Estella | ||
| 22 | Hydrophone gain | Hydrophone gain | Weigelt, Estella | Hydro 1 | ||
| 23 | Seismometer gain | Seismometer gain | Weigelt, Estella | X Seis 2 | ||
| 24 | Seismometer gain | Seismometer gain | Weigelt, Estella | Y Seis 3 | ||
| 25 | Seismometer gain | Seismometer gain | Weigelt, Estella | Z Seis 4 | ||
| 26 | Seismometer gain | Seismometer gain | Weigelt, Estella | Z Seis CH1or4 | ||
| 27 | Seismometer gain | Seismometer gain | Weigelt, Estella | Z Seis CH2or5 | ||
| 28 | Seismometer gain | Seismometer gain | Weigelt, Estella | Z Seis CH3or6 | ||
| 29 | Sampling rate | Sampling rate | Hz | Weigelt, Estella | ||
| 30 | SEGY file | SEGY | Weigelt, Estella | big-endian, CH 0 | ||
| 31 | SEGY file | SEGY | Weigelt, Estella | big-endian, CH 3 | ||
| 32 | SEGY file | SEGY | Weigelt, Estella | little-endian, CH 0 | ||
| 33 | SEGY file | SEGY | Weigelt, Estella | little-endian, CH 3 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
663 data points