Physical oceanography and current velocity during Nathaniel B. Palmer cruise NBP97-05 ...

• Main Authors: Gordon, Arnold L, Visbeck, Martin, Huber, Bruce
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2001
• Subjects: Acoustic Doppler Current Profiler; CTD/Rosette; NBP9705; Nathaniel B. Palmer; Antarc*; Antarctic; Scotia Sea; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.761032; https://doi.pangaea.de/10.1594/PANGAEA.761032

An extensive set of conductivity-temperature-depth (CTD)/lowered acoustic Doppler current profiler (LADCP) data obtained within the northwestern Weddell Sea in August 1997 characterizes the dense water outflow from the Weddell Sea and overflow into the Scotia Sea. Along the outer rim of the Weddell Gyre, there is a stream of relatively low salinity, high oxygen Weddell Sea Deep Water (defined as water between 0° and ?0.7°C), constituting a more ventilated form of this water mass than that found farther within the gyre. Its enhanced ventilation is due to injection of relatively low salinity shelf water found near the northern extreme of Antarctic Peninsula's Weddell Sea shelf, shelf water too buoyant to descend to the deep-sea floor. The more ventilated form of Weddell Sea Deep Water flows northward along the eastern side of the South Orkney Plateau, passing into the Scotia Sea rather than continuing along an eastward path in the northern Weddell Sea. Weddell Sea Bottom Water also exhibits two forms: a ... : Supplement to: Gordon, Arnold L; Visbeck, Martin; Huber, Bruce (2001): Export of Weddell Sea deep and bottom water. Journal of Geophysical Research: Oceans, 106(C5), 9005-9017 ...