Physical oceanography during POLARSTERN cruise ANT-V/3

• Main Authors: Fahrbach, Eberhard, Rohardt, Gerd
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: ANT-V/3; AWI_PhyOce; Calculated; Computed; Conductivity; CTD; Neil Brown; Mark III B; SN 1069; CTD/Rosette; CTD-RO; Date/Time of event; Density; sigma-theta (0); DEPTH; water; Elevation of event; Event label; Latitude of event; Longitude of event; MULT; Multiple investigations; Physical Oceanography @ AWI; Polarstern; Pressure; PS10/490-1; PS10/498-1; PS10/503-1; PS10/504-1; PS10/508-1; PS10/509-1; PS10/510-1; PS10/511-1; PS10/512-1; PS10/514-1; PS10/515-1; PS10/516-1; PS10/517-1; PS10/518-1; PS10/521-1; PS10/521-2; PS10/526-1; PS10/527-1; PS10/528-1; PS10/529-1; PS10/530-1; PS10/532-1; PS10/533-1; PS10/542-1; Antarctic; The Antarctic; Weddell; Atka; Maud Rise; Vestkapp; Antarc*; Berichte zur Polarforschung; Polar Research; Polarforschung; Reports on polar research
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.735189; https://doi.org/10.1594/PANGAEA.735189

The work carried out by the physical oceanography group on POLARSTERN Leg ANT-V/3 concentrated on four major topics: A. A large scale survey of the eastern boundary between the Weddell gyre and the open ocean. On the way to the coastal polynya in early October 12 CTD stations were carried out between 54°30'S, 6°E and 70°30'S 8°W. Another set of 16 stations was obtained in early December on the way back north. During this transsect three current meter moorings were recovered at Maud Rise. The path between the current meter arrays was used to run an additional section to the NNE across the top of Maud Rise. B. A large scale survey of the Antarctic Coastal Current along the eastern shelf area. To obtain the water mass characteristics along the eastern Weddell shelf 36 CTD stations were carried out between Atka Bay and the Filchner Trench. Most of the stations were located on the shelf. Cross shelf sections were obtained both near Drescher Inlet and off Halley Bay, in the divergence area of the Coastal Current where the continental slope turns to the west and south of Vestkapp at Neptune's Point. A longshore section over 120 km was run north of Vestkapp. C. A mesoscale survey of the Antarctic Coastal Current off Drescher Inlet. The experimental work consisted of 37 CTD-stations and direct current measurements. The CTD-profiles were grouped into seven sections perpendicular to the coast line off Drescher Inlet extending once over 70 km but normally over 35 km. The profile depth ranged from 300 m on one section to the complete water column at two sections. Most sections consist of five stations providing highest resolution over the upper continental slope with offshore increasing spacing. The stations were chosen to represent the shelf (450 m), the shelf break (800 m), the upper slope (1600 m), the lower slope (2400 m) and the transition to the abyssal plain (3400 m). Rough topography and difficult ice conditions made it impossible to meet those requirements in all cases. D. A small scale survey of the hydrographic ...