A23 repeat hydrography section 2019/20

This is an annual repeat of the northern part of the WOCE A23 section, as part of the NERC-funded ORCHESTRA (Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports) project. This expedition has been merged with expedition SR1b into a single combined voyage. https://data.aad.gov.au/duesouth/expedition/5fe6d1d8-ff1c-497e-b0cc-d3bf3debcc1d/ This work will involve up to 10 days of CTD work (29 stations), with the CTD unit deployed to within 10 m of the seabed at each station. The section runs between the northern Weddell Sea and South Georgia, at the northern end of the Scotia Sea. Niskin bottles will be closed at various depths on the upcast of each profile, and sampled for salinity and oxygen isotopes. Lowered Acoustic Doppler Current Profiler (LADCP) measurements will be made on each profile.

https://www.bas.ac.uk/project/a23-repeat-section/ https://www.bas.ac.uk/project/orchestra/