Römer, Miriam; Torres, Marta E; Kasten, Sabine; Kuhn, Gerhard; Graham, Alastair G C; Mau, Susan; Little, Crispin T S; Linse, Katrin; Pape, Thomas; Geprägs, Patrizia; Fischer, David; Wintersteller, Paul; Marcon, Yann; Rethemeyer, Janet; Bohrmann, Gerhard (2014): (Supplementary table S1) 133 flares detected wiht a single beam echosounder during POLARSTERN cruise ANT-XXIX/4 in March and April 2013 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.835231, In supplement to: Römer, Miriam; Torres, Marta E; Kasten, Sabine; Kuhn, Gerhard; Graham, Alastair G C; Mau, Susan; Little, Crispin T S; Linse, Katrin; Pape, Thomas; Geprägs, Patrizia; Fischer, David; Wintersteller, Paul; Marcon, Yann; Rethemeyer, Janet; Bohrmann, Gerhard; Shipboard scientific party ANT-XXIX/4 (2014): First evidence of widespread active methane seepage in the Southern Ocean, off the sub-Antarctic island of South Georgia. Earth and Planetary Science Letters, 403, 166-177, https://doi.org/10.1016/j.epsl.2014.06.036
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Project(s):
Coverage:
Median Latitude: -54.137677 * Median Longitude: -36.712293 * South-bound Latitude: -54.467308 * West-bound Longitude: -38.139610 * North-bound Latitude: -53.769920 * East-bound Longitude: -35.746135
Date/Time Start: 2013-03-22T00:00:00 * Date/Time End: 2013-04-16T00:00:00
Minimum DEPTH, water: 130 m * Maximum DEPTH, water: 390 m
Event(s):
PS81/4-track * Latitude Start: -53.144700 * Longitude Start: -70.909100 * Latitude End: -51.690000 * Longitude End: -57.812000 * Date/Time Start: 2013-03-22T00:00:00 * Date/Time End: 2013-04-16T00:00:00 * Location: Scotia Sea * Campaign: ANT-XXIX/4 (PS81) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
Comment:
133 flares were detected using the ship-mounted parametric single beam echosounder during R/V Polarstern cruise ANT-XXIX/4 in March and April 2013. Gas emission sites were found to originate at water depths between 130 and 390 meters below sea level (mbsl) on the northern shelf of South Georgia within cross-shelf troughs 1, 3, 4, 5, and 6. Flare heights in the echograms were between 10 and 220 m with an average of ~70 m.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Number | No | Römer, Miriam | cross-shelf troughs | ||
| 2 | LATITUDE | Latitude | Geocode | |||
| 3 | LONGITUDE | Longitude | Geocode | |||
| 4 | DEPTH, water | Depth water | m | Geocode | ||
| 5 | Height above sea floor/altitude | Height above sea floor | m | Römer, Miriam | Echosounder, single beam |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
266 data points