(Table 1) Mean sea-ice properties from moored upward looking sonars along the Greenwich meridian ...

• Main Authors: Behrendt, Axel, Fahrbach, Eberhard, Hoppema, Mario, Rohardt, Gerd, Boebel, Olaf, Klatt, Olaf, Wisotzki, Andreas, Witte, Hannelore
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: AWI; Event label; Latitude of event; Longitude of event; Elevation of event; Duration, number of days; Sea ice draft; Mooring long time; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Andreas; Antarctic; Arctic; Gerd; Greenwich; Weddell; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.846921; https://doi.pangaea.de/10.1594/PANGAEA.846921

Sea-ice ocean interaction processes are of significant influence on the water mass formation in the Weddell gyre. On the basis of data obtained between 1984 and 2008 from eight repeat hydrographic sections, moored instruments and profiling floats in the Weddell gyre on the Greenwich meridian - almost all of them collected with R.V. Polarstern - we identified variations in the properties of the Winter Water and the sea ice draft. In the Winter Water the salinity was relatively low throughout the 1990s (with a minimum in 1992) and a maximum was observed in 2003. Observations of sea ice draft by moored upward looking sonars are available from 1996 onwards. In the southern part of the transect they display variations on a decadal time scale with a minimum in sea-ice thickness in 1998 and an increase since then. Salinity variations in the Winter Water layer cannot be explained only by variations in sea-ice formation and variable entrainment of underlying Warm Deep Water, but lateral advection of water and sea ice ... : Supplement to: Behrendt, Axel; Fahrbach, Eberhard; Hoppema, Mario; Rohardt, Gerd; Boebel, Olaf; Klatt, Olaf; Wisotzki, Andreas; Witte, Hannelore (2011): Variations of Winter Water properties and sea ice along the Greenwich meridian on decadal time scales. Deep Sea Research Part II: Topical Studies in Oceanography, 58(25-26), 2524-2532 ...