Seismic reflection data of a basal channel and ocean cavity at the ice shelf-grounding line area of Support Force Glacier, Filchner Ice Shelf, Antarctica


Support Force Glacier (SFG) is a large ice stream feeding into the Filchner Ice Shelf. The active seismic survey is recorded at the sheet-shelf transition of SFG. We map the bed while grounded, the ocean cavity around a surface channel at the ice shelf and its counterpart at the base, the basal channel, and the seabed. The survey consists of 5 seismic reflection profiles, 2 along-flow profiles and 3 across-flow profiles.The 2.42GB seismic data were recorded with a 300 m long streamer consisting of 96 30Hz p-wave sensors. The sample rate is 0.5 ms, record length 3000 ms. The data is single fold, shot spacing is 150 m:line name: profile TC paper: direction: #shots:- 20170501 profile I along-flow 291 shots- 20170502 profile III across-flow 28 shots- 20170503 profile II along-flow 71 shots- 20170504 profile IV across-flow 40 shots- 20170506 profile V across-flow 50 shotsPresented are for each line (20170501 used as example):- The raw shots: 20170501_RAW_SHOTS_EDITS_GEOM.segy- The Kirchhoff migrated and depth converted profiles: 20170501stat_TXmig_Zconv.segy- The shot x,y,z coordinates in longitude, latitude and surface height in meters above sea level (z, WGS84 ellipsoid): 20170501_GPS.txt

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Metadata Access
Creator Hofstede, Coen Matthijs ORCID logo; Beyer, Sebastian ORCID logo; Corr, Hugh F J; Eisen, Olaf (ORCID: 0000-0002-6380-962X); Hattermann, Tore ORCID logo; Helm, Veit ORCID logo; Neckel, Niklas ORCID logo; Smith, Emma Clare ORCID logo; Steinhage, Daniel; Zeising, Ole ORCID logo; Humbert, Angelika ORCID logo
Publisher PANGAEA
Publication Year 2021
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 54 data points
Discipline Earth System Research
Spatial Coverage (-46.037W, -82.524S, -45.277E, -82.137N)
Temporal Coverage Begin 2017-01-01T00:00:00Z
Temporal Coverage End 2017-01-06T00:00:00Z