Ocean current, temperature and salinity measurements from moorings at the southern Weddell Sea continental slope, February 2010 - February 2011

摘要

This data set includes measurements from moored instruments, collected at the southern Weddell Sea continental slope, in the period between 16 February 2010 and 14 February 2011. The data set was collected as a part of the International Polar Year project entitled "Bipolar Atlantic Thermohaline Circulation (BIAC)", under the working theme "Downslope processes, pathways, cascading and mixing". The objective was to study the dynamics and mixing of the dense overflow plume on the continental slope of the Weddell Sea northwest of the Filchner Depression. Moored observations from the previous year, but further to the east, can be found in Fer (2016, doi:10.1594/PANGAEA.869799). The mooring positions in 2010-2011 were targeted to capture the variability associated with the Filchner overflow plume, on the upper continental slope.The final deployed positions are in the overflow region, however, were altered because of unfavorable ice conditions. The data set includes time series of ocean temperature, salinity and currents on the continental slope of the southeastern Weddell Sea at approximately 1400 m and 1850 m isobaths near 74°S; 36°W. (A third mooring unfortunately could not be recovered in 2011, nor in the following years, because of sea ice conditions.) Complete set of mooring drawings and detailed description can be found in Fer (2017, PDF provided).