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Weigelt, Estella; Geissler, Wolfram H; Jokat, Wilfried (2026): Raw seismic refraction data recorded during RV POLARSTERN cruise PS74, Arctic Ocean, profile AWI-20090200 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993355 (DOI registration in progress)

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Published: 2026-04-08

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Abstract:
As part of RV Polarstern cruise PS74, three seismic refraction profiles were collected across the East-Greenland shelf and margin to gather new information on the tectonic and glacial history of East Greenland and its ice shield. The acquired data set covers data from a total of 51 stations, including 4 on land stations. The seismic refraction line AWI-20090100 was in the prolongation of the Kong Oscar Fjord across the Kolbeinsey Ridge. It supplements profiles gathered more in the north in 2003. The second set of profiles (AWI-20090200 and AWI-20090250) was located in the Boreas Basin and terminated at the mid-ocean Knipovich Ridge. Here, in addition, a seismological detection array was deployed for 10 days recording the seismicity of the ultra-slow ridge between two magmatic segments. The seismic energy was generated by an array of 8x8.3 L G-guns, fired every 60 s at 200 bar. The refracted signals were collected by DEPAS LOBSTER (Longterm Ocean Bottom Seismometer for Tsunami and Earthquake Research) instruments equipped with three-components ocean bottom seismometers (OBS) and a hydrophone. The onshore stations comprised by 3 x 3 4.5 Hz-geophone chains (REFTEK). Except one OBS station, 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, 2010) and in a metadata-file listed below.
The present data set provides raw data concerning the refraction seismic profile AWI-20090200. 23 OBS were deployed along a ~315km long line. The data set comprises for the whole profile (a) the scanned field protocol, (b) the scanned field protocol for the releasers, (c) the scanned field protocol for the Reftek land stations, (d) a table with all compiled metadata and information on the stations, (e) navigational data, (f) shot point positions, and (g) an overall ReadMe-file with information on the whole seismic refraction experiment. For each station the set comprises (h) original raw data files in mcs-format, and (i) log-files.
Keyword(s):
AWI-20090200; AWI Geophysics; East Greenland; PS74; RV Polarstern; Seismic refraction data
Related to:
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung; et al. (2017): DEPAS (Deutscher Geräte-Pool für amphibische Seismologie): German Instrument Pool for Amphibian Seismology. Journal of large-scale research facilities JLSRF, 3, https://doi.org/10.17815/jlsrf-3-165
Jokat, Wilfried (2010): The Expedition of the Research Vessel Polarstern to the Arctic in 2009 (ARK-XXIV/3). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 615, 186 pp, https://doi.org/10.2312/BzPM_0615_2010
Jokat, Wilfried (2015): Station list and links to master tracks in different resolutions of POLARSTERN cruise ARK-XXIV/3, Reykjavik - Bremerhaven, 2009-08-05 - 2009-09-25 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.847941
Schenke, Hans Werner; Jensen, Laura; Amabrova, Anastasia; Damaske, Daniel; Prokoph, Andreas (2010): Swath sonar bathymetry during POLARSTERN cruise ARK-XXIV/3 (PS74) 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.746559
Other version:
Weigelt, Estella; Geissler, Wolfram H; Jokat, Wilfried (2026): Primary seismic refraction data recorded during RV POLARSTERN cruise PS74, Arctic Ocean, profile AWI-20090200 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993372
Additional metadata:
Field protocols of seismic refraction data, ark2009
Field protocols of seismic refraction data, LOBSTER Station Protocol, akr2009
Navigation documentation of seismic refraction data, profile AWI-20090200
Navigational data with longitude and latitude of shotpoints, profile AWI-20090200
ReadMe - ark2009 metadata
Project(s):
Marine Geophysics @ AWI (AWI_GeoPhy)
Coverage:
Median Latitude: 76.687939 * Median Longitude: 4.449478 * South-bound Latitude: 75.903000 * West-bound Longitude: -1.539000 * North-bound Latitude: 77.667000 * East-bound Longitude: 8.217000
Date/Time Start: 2009-08-26T04:17:00 * Date/Time End: 2009-08-30T11:18:00
Minimum ELEVATION: -3447 m a.s.l. * Maximum ELEVATION: -1525 m a.s.l.
Event(s):
PS74/274-2  * Latitude: 77.666800 * Longitude: -1.539000 * Date/Time: 2009-08-26T04:17:00 * Elevation: -3080.0 m * Location: North Greenland Sea * Campaign: ARK-XXIV/3 (PS74) * Basis: Polarstern * Method/Device: Ocean bottom seismometer (OBS)
PS74/275-1  * Latitude: 77.555200 * Longitude: -0.883500 * Date/Time: 2009-08-26T05:37:00 * Elevation: -3138.0 m * Location: North Greenland Sea * Campaign: ARK-XXIV/3 (PS74) * Basis: Polarstern * Method/Device: Ocean bottom seismometer (OBS)
PS74/276-2  * Latitude: 77.444800 * Longitude: -0.244700 * Date/Time: 2009-08-26T09:12:00 * Elevation: -3189.0 m * Location: North Greenland Sea * Campaign: ARK-XXIV/3 (PS74) * Basis: Polarstern * Method/Device: Ocean bottom seismometer (OBS)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventWeigelt, Estella
2 Station labelStationWeigelt, Estella
3 Date/time startDate/time startWeigelt, EstellaSync Time UTC
4 Date/time startDate/time startWeigelt, EstellaRecording UTC
5 Date/time startDate/time startWeigelt, EstellaDeployment UTC
6 LONGITUDELongitudeWeigelt, EstellaGeocode
7 LATITUDELatitudeWeigelt, EstellaGeocode
8 ELEVATIONElevationm a.s.l.Weigelt, EstellaGeocode
9 Date/time endDate/time endWeigelt, EstellaRecovery, releaser time, local time
10 Date/time endDate/time endWeigelt, EstellaRecording UTC
11 Date/time endDate/time endWeigelt, EstellaSkewtime UTC
12 Clock skewSkewµsWeigelt, Estella
13 InstrumentInstrumentWeigelt, Estella
14 Recorder typeRecorderWeigelt, Estella
15 Recorder, serial numberRecorder SNWeigelt, Estella
16 Seismometer typeSeismometerWeigelt, Estella
17 Seismometer, serial numberSeismometer SNWeigelt, Estella
18 Hydrophone typeHydrophoneWeigelt, Estella
19 Releaser, serial numberReleaser SNWeigelt, Estella
20 Hydrophone gainHydrophone gainWeigelt, EstellaHydro 1
21 Seismometer gainSeismometer gainWeigelt, EstellaX Seis 2
22 Seismometer gainSeismometer gainWeigelt, EstellaY Seis 3
23 Seismometer gainSeismometer gainWeigelt, EstellaZ Seis 4
24 Sampling rateSampling rateHzWeigelt, Estella
25 Binary ObjectBinaryWeigelt, EstellaLog file (Binary)
26 Binary ObjectBinaryWeigelt, EstellaRaw data files (Binary) in MCS-format
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 1 (ProcLevel1)
Size:
506 data points

Data

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1 
Event		2 
Station		3 
Date/time start
(Sync Time UTC)		4 
Date/time start
(Recording UTC)		5 
Date/time start
(Deployment UTC)		6 
Longitude		7 
Latitude		8 
Elevation [m a.s.l.]		9 
Date/time end
(Recovery, releaser time, loca...)		10 
Date/time end
(Recording UTC)		11 
Date/time end
(Skewtime UTC)		12 
Skew [µs]		13 
Instrument		14 
Recorder		15 
Recorder SN		16 
Seismometer		17 
Seismometer SN		18 
Hydrophone		19 
Releaser SN		20 
Hydrophone gain
(Hydro 1)		21 
Seismometer gain
(X Seis 2)		22 
Seismometer gain
(Y Seis 3)		23 
Seismometer gain
(Z Seis 4)		24 
Sampling rate [Hz]		25 
Binary
(Log file (Binary))		26 
Binary
(Raw data files (Binary) in MC...)
PS74/274-2 20090200st2012009-08-25T22:01:542009-08-25T22:03:032009-08-26T06:17-1.539077.6670-30802009-09-04T06:142009-09-04T09:00:442009-09-04T09:00:53-5657OBS_AWI LOBSTERGEOLON-MCS50915Güralp CMG-40T0906-06831232606105411110020090200st201.log20090200st201.raw
PS74/275-1 20090200st2022009-08-25T22:45:492009-08-25T22:47:442009-08-26T05:37-0.884077.5550-31382009-09-04T08:342009-09-04T11:01:362009-09-04T11:02:0132718OBS_AWI LOBSTERGEOLON-MCS50914Güralp CMG-40T0906-062312127606127411110020090200st202.log20090200st202.raw
PS74/276-2 20090200st2032009-08-25T23:16:022009-08-25T23:18:322009-08-26T09:12-0.245077.4450-31892009-09-04T18:092009-09-04T19:51:122009-09-04T19:51:4034218OBS_AWI LOBSTERGEOLON-MCS505909Güralp CMG-40T0906-048312121606126411110020090200st203.log20090200st203.raw
PS74/277-1 20090200st2042009-08-26T02:28:512009-08-26T02:29:322009-08-26T10:370.395077.3370-32422009-09-04T21:352009-09-04T23:13:332009-09-04T23:14:0927562OBS_AWI LOBSTERGEOLON-MCS50906Güralp CMG-40T1205-026312091606128411110020090200st204.log20090200st204.raw
PS74/278-2 20090200st2052009-08-26T05:00:052009-08-26T05:01:092009-08-26T14:071.040077.2240-32552009-09-05T01:002009-09-05T02:21:322009-09-05T02:21:5638781OBS_AWI LOBSTERGEOLON-MCS60710Güralp CMG-40T1205-01631209551152411110020090200st205.log20090200st205.raw
PS74/279-1 20090200st2062009-08-26T13:12:452009-08-26T13:13:532009-08-26T15:171.658077.1120-32502009-09-05T03:102009-09-05T04:38:312009-09-05T04:39:1035781OBS_AWI LOBSTERGEOLON-MCS505930Güralp CMG-40T0906-04731210260697411110020090200st206.log20090200st206.raw
PS74/280-2 20090200st2072009-08-26T14:47:232009-08-26T14:49:172009-08-26T18:452.278077.0020-32742009-09-05T05:242009-09-05T06:46:182009-09-05T06:47:36-11188OBS_AWI LOBSTERGEOLON-MCS60739Güralp CMG-40T1205-009312158606118411110020090200st207.log20090200st207.raw
PS74/281-1 20090200st2082009-08-26T16:37:012009-08-26T16:38:102009-08-26T20:002.907076.8900-32862009-09-05T07:312009-09-05T09:06:072009-09-05T09:06:5016343OBS_AWI LOBSTERGEOLON-MCS50917Güralp CMG-40T1205-02331207105606115411110020090200st208.log20090200st208.raw
PS74/282-2 20090200st2092009-08-26T17:48:572009-08-26T17:50:302009-08-26T23:303.522076.7800-32942009-09-05T09:452009-09-05T11:12:562009-09-05T11:13:2040218OBS_AWI LOBSTERGEOLON-MCS50919Güralp CMG-40T1205-00531210060695411110020090200st209.log20090200st209.raw
PS74/283-1 20090200st2102009-08-26T20:56:362009-08-26T21:00:102009-08-27T02:354.073076.6700-31402009-09-05T11:572009-09-05T13:03:262009-09-05T13:04:002593OBS_AWI LOBSTERGEOLON-MCS50921Güralp CMG-40T1205-011312134606112411110020090200st210.log20090200st210.raw
PS74/284-2 20090200st2112009-08-26T21:48:052009-08-26T21:49:272009-08-27T05:584.731076.5580-30752009-09-05T13:572009-09-05T15:29:112009-09-05T15:30:0621250OBS_AWI LOBSTERGEOLON-MCS50913Güralp CMG-40T1205-01431213351273411110020090200st211.log20090200st211.raw
PS74/285-1 20090200st2122009-08-26T22:41:532009-08-26T22:44:082009-08-27T07:145.375076.4390-27502009-09-05T16:052009-09-05T19:02:222009-09-05T19:04:511031OBS_AWI LOBSTERGEOLON-MCS60748Güralp CMG-40T0906-06531206905606130411110020090200st212.log20090200st212.raw
PS74/286-2 20090200st2132009-08-27T02:07:412009-08-27T02:08:382009-08-27T10:035.767076.3660-26852009-09-05T17:512009-09-05T20:00:552009-09-05T20:02:0026093OBS_AWI LOBSTERGEOLON-MCS60709Güralp CMG-40T0906-7431206605606119411110020090200st213.log20090200st213.raw
PS74/287-1 20090200st2142009-08-27T07:56:372009-08-27T07:58:092009-08-27T11:146.296076.2680-22392009-09-08T03:402009-09-08T04:55:132009-09-08T04:56:53-6782OBS_AWI LOBSTERGEOLON-MCS60729Güralp CMG-40T0906-03631211751159411110020090200st214.log20090200st214.raw
PS74/288-2 20090200st2152009-08-27T10:42:592009-08-27T10:43:482009-08-27T14:006.734076.1840-26012009-09-07T23:382009-09-08T00:41:072009-09-08T00:42:138000OBS_AWI LOBSTERGEOLON-MCS50903Güralp CMG-40T1205-02031212951164411110020090200st215.log20090200st215.raw
PS74/289-1 20090200st2162009-08-27T11:48:052009-08-27T11:49:512009-08-27T15:227.197076.0930-34472009-09-07T21:342009-09-07T23:00:582009-09-07T23:01:25-5625OBS_AWI LOBSTERGEOLON-MCS50904Güralp CMG-40T1205-01231211251153411110020090200st216.log20090200st216.raw
PS74/290-2 20090200st2172009-08-27T13:32:412009-08-27T13:35:362009-08-27T18:297.685076.0040-27292009-09-06T21:502009-09-06T18:45:212009-09-06T18:45:59130000OBS_AWI LOBSTERGEOLON-MCS50926Güralp CMG-40T0906-06003120800551167411110020090200st217.log20090200st217.raw
PS74/291-2 20090200st2182009-08-27T15:29:522009-08-27T15:31:282009-08-27T21:258.217075.9030-23332009-09-06T19:212009-09-06T20:40:142009-09-06T20:41:3312687OBS_AWI LOBSTERGEOLON-MCS50916Güralp CMG-40T0906-07131210951163411110020090200st218.log20090200st218.raw
PS74/292-1 20090200st2192009-08-27T17:01:482009-08-27T17:02:442009-08-27T23:028.100376.1493-23332009-09-06T21:502009-09-06T23:04:412009-09-06T23:04:4127343OBS_AWI LOBSTERGEOLON-MCS60741Güralp CMG-40T0906-08031209751166411110020090200st219.log20090200st219.raw
PS74/293-1 20090200st2202009-08-27T18:46:392009-08-27T18:48:382009-08-28T00:337.974576.3582-23062009-09-07T00:322009-09-07T02:17:432009-09-07T02:18:2226187OBS_AWI LOBSTERGEOLON-MCS60753Güralp CMG-40T1205-01031206205606103411110020090200st220.log20090200st220.raw
PS74/294-1 20090200st2212009-08-27T19:23:562009-08-27T19:25:302009-08-28T02:108.080576.5858-15252009-09-07T03:002009-09-07T03:53:272009-09-07T03:54:02-23782OBS_AWI LOBSTERGEOLON-MCS50901Güralp CMG-40T0906-039312115606124411110020090200st221.log20090200st221.raw
PS74/297-1 20090200st2242009-08-27T23:36:272009-08-27T23:37:002009-08-28T06:146.587076.7073-25482009-09-07T10:372009-09-07T12:18:052009-09-07T12:18:594875OBS_AWI LOBSTERGEOLON-MCS60735Güralp CMG-40T1205-00131209651156411110020090200st224.log20090200st224.raw
PS74/298-1 20090200st2252009-08-28T00:41:352009-08-27T00:41:452009-08-28T07:456.388776.5250-25032009-09-07T12:552009-09-07T14:26:012009-09-07T14:26:5016156OBS_AWI LOBSTERGEOLON-MCS60740Güralp CMG-40T1205-00731207905606109411110020090200st225.log20090200st225.raw