Römer-Stange, Nikolas; Wenau, Stefan; Bihler, Viola; Keil, Hanno; Spieß, Volkhard (2021): Multichannel reflection seismic processed data of RV HEINCKE during cruise HE525 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939184
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Published: 2021-12-08 • DOI registered: 2022-09-03
Abstract:
Ultra high resolution multi channel seismic data has been collected during the expedition He525 with R/V Heincke between 2019-03-05 and 2019-03-08 in the German North Sea to conduct a feasibility study on boulder detection in the shallow sub-seafloor with beamforming on ultra-high resolution seismic data. The campaign took place in the north of Helgoland where boulders on the seafloor have been identified. A digital solid-state streamer system (HTI) in a planar array set-up with 48 channels in a 8x3 m tow frame as well as a ultra high resolution seismic source (Applied Acoustics Dura-Spark 400 with a CSP-N 2400 Negative Discharge, 1750 J) were employed to acquire the profile GeoB19-112. The acquisition set-up is optimized for diffraction imaging but conventional seismic reflection imaging quality is limited. The data archived has been processed for diffraction imaging and thus boulder detection in a small area of interest (60x60 m). The archived Kingdom Porject required SQL 2012 (forward compatible, may require project updates).
Keyword(s):
Related to:
Römer-Stange, Nikolas; Wenau, Stefan; Bihler, Viola; Keil, Hanno; Ramos Cordova, Carlos; Spieß, Volkhard (2022): Boulder Detection in the Shallow Sub‐Seafloor by Diffraction Imaging With Beamforming on Ultra‐High Resolution Seismic Data—A Feasibility Study. Earth and Space Science (ESS), 9(6), https://doi.org/10.1029/2021EA002156
Funding:
Bundesministerium für Wirtschaft und Energie (BMWi), grant/award no. 0324122B: Verbundvorhaben: Boulder-Detektion - Anwendung hydroakustischer Verfahren zur Detektion von Findlingen und Gesteinsobjekten im Meeresboden für die Planung von Offshore-Windparks und Kabeltrassen; Teilvorhaben: Mehrkanalseismisches Beamforming und spezialisiertes Datenprozessing
Coverage:
Median Latitude: 54.302330 * Median Longitude: 7.967750 * South-bound Latitude: 54.301330 * West-bound Longitude: 7.947170 * North-bound Latitude: 54.303330 * East-bound Longitude: 7.988330
Date/Time Start: 2019-03-07T07:10:00 * Date/Time End: 2019-03-07T10:00:00
Minimum Elevation: -22.0 m * Maximum Elevation: -21.0 m
Event(s):
GeoB19-112 * Latitude Start: 54.301330 * Longitude Start: 7.988330 * Latitude End: 54.303330 * Longitude End: 7.947170 * Date/Time Start: 2019-03-07T07:10:00 * Date/Time End: 2019-03-07T10:00:00 * Elevation Start: -22.0 m * Elevation End: -21.0 m * Campaign: HE525 (BoulderDetection) * Basis: Heincke * Method/Device: Multichannel seismics (MCSEIS)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Römer-Stange, Nikolas | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Römer-Stange, Nikolas | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Römer-Stange, Nikolas | ||
| 4 | File content | Content | Römer-Stange, Nikolas |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
8 data points
Data
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| 1 Binary | 2 Binary (Type) | 3 Binary (Size) [Bytes] | 4 Content |
|---|---|---|---|
| BoulderDetectionSubSeafloor_Kingdom_He525.zip | application/zip | 652 MBytes | The acquired seismic data (Profile line GeoB19-112) has been processed for boulder detection with a custom diffraction imaging algorithm and the results for a small area of interest are presented in the attached Kingdom Project. A session file and a custom color bar are given to reproduce figures. |
| GeoB19-112_BoulderDetectionResults_Amplitudes.sgy | application/octet-stream | 48.1 MBytes | Boulder detection results of Profile GeoB19-112 in SEGY format as unweighted amplitudes with standard SEGY Trace Headers. |
| GeoB19-112_BoulderDetectionResults_WeightedAmplitudes.sgy | application/octet-stream | 48.1 MBytes | Boulder detection results of Profile GeoB19-112 in SEGY format as weighted amplitudes with standard SEGY Trace Headers. |
| GeoB19-112_BoulderDetectionResults_WorldFile.txt | text/plain | 217 Bytes | World File with georereferencing information. |