Bohrmann, Gerhard; Shipboard scientific party ANT-XXIX/4 (2014): Seabed photographs taken along OFOS profile PS81/285-1 during POLARSTERN cruise ANT-XXIX/4 [dataset]. © AWI/MARUM, University of Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.835365, 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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Further details:
Coverage:
Median Latitude: -54.202359 * Median Longitude: -36.453561 * South-bound Latitude: -54.203355 * West-bound Longitude: -36.456028 * North-bound Latitude: -54.201859 * East-bound Longitude: -36.452783
Date/Time Start: 2013-04-11T23:37:21 * Date/Time End: 2013-04-12T00:58:33
Minimum DEPTH, water: 257.0 m * Maximum DEPTH, water: 262.0 m
Event(s):
PS81/285-1 (OFOS-10) * Latitude Start: -54.202170 * Longitude Start: -36.453500 * Latitude End: -54.203330 * Longitude End: -36.456170 * Date/Time Start: 2013-04-11T23:39:00 * Date/Time End: 2013-04-12T00:59:00 * Elevation Start: -264.2 m * Elevation End: -263.8 m * Location: South Atlantic Ocean * Campaign: ANT-XXIX/4 (PS81) * Basis: Polarstern * Method/Device: Ocean Floor Observation System (OFOS)
Comment:
The Ocean Floor Observation System (OFOS), a towed underwater system equipped with a high-resolution digital camera (ISITEC, CANON EOS 1Ds Mark III), was used to visually inspect the sea floor at an altitude of about 1.5-2 m relative to the seabed in areas where flares were detected. In addition to the provided live feed, the camera was programmed to take high-resolution (21 megapixels) photographs of the sea floor every 30 s. Underwater-navigation was achieved using the shipboard IXSEA Posidonia ultra short baseline system, with an accuracy of 5-10 m, and these data were used to establish the OFOS tracks and the positions of each photograph taken.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DATE/TIME | Date/Time | Geocode | |||
2 | LATITUDE | Latitude | Geocode | |||
3 | LONGITUDE | Longitude | Geocode | |||
4 | UTM Easting, Universal Transverse Mercator | UTM east | m | Bohrmann, Gerhard | ||
5 | UTM Northing, Universal Transverse Mercator | UTM north | m | Bohrmann, Gerhard | ||
6 | UTM Zone, Universal Transverse Mercator | UTM Zone | Bohrmann, Gerhard | |||
7 | DEPTH, water | Depth water | m | Geocode | ||
8 | Heading | Head | deg | Bohrmann, Gerhard | ||
9 | File size | File size | kByte | Bohrmann, Gerhard | ||
10 | Uniform resource locator/link to image | URL image | Bohrmann, Gerhard |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1332 data points