Physical oceanography from 120 CTDs, 79 water bottles stations, and 30 helicopter-borne CTDs during POLARSTERN cruise ANT-XXII/2 (ISPOL) ...

• Main Authors: Absy, Joao Marcelo, Schröder, Michael, Muench, Robin D, Hellmer, Hartmut H
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2008
• Subjects: CTD from ice float; CTD/Rosette; ANT-XXII/2; Polarstern; Physical Oceanography @ AWI AWI_PhyOce; Ice Shelf; Sea ice; Weddell Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.729699; https://doi.pangaea.de/10.1594/PANGAEA.729699

The Ice Station POLarstern (ISPOL) cruise revisited the western Weddell Sea in late 2004 and obtained a comprehensive set of conductivity-temperature-depth (CTD) data. This study describes the thermohaline structure and diapycnal mixing environment observed in 2004 and compares them with conditions observed more than a decade earlier. Hydrographic conditions on the central western Weddell Sea continental slope, off Larsen C Ice Shelf, in late winter/early spring of 2004/2005 can be described as a well-stratified environment with upper layers evidencing relict structures from intense winter near-surface vertical fluxes, an intermediate depth temperature maximum, and a cold near-bottom layer marked by patchy property distributions. A well-developed surface mixed layer, isolated from the underlying Warm Deep Water (WDW) by a pronounced pycnocline and characterized by lack of warming and by minimal sea-ice basal melting, supports the assumption that upper ocean winter conditions persisted during most of the ... : Supplement to: Absy, Joao Marcelo; Schröder, Michael; Muench, Robin D; Hellmer, Hartmut H (2008): Early summer thermohaline characteristics and mixing in the western Weddell Sea. Deep Sea Research Part II: Topical Studies in Oceanography, 55(8-9), 1117-1131 ...