Repeating oceanographic observations of the Southern Ocean
Channel: National Oceanography Centre
Date: 2020-06-05

Scientists from NOC, BAS and other institutions recently visited Drake Passage on expedition DY113 to measure the Antarctic Circumpolar Current and the Antarctic Bottom Water exported from the Weddell Sea, as part of the NERC-funded Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports (ORCHESTRA) programme.  DY113 revisited two repeat hydrographic lines, SR1b across Drake Passage and A23 from the northern Weddell Sea across the Scotia Sea, repeating measurements made by UK scientists as part of the Global Ocean Ship-based Hydrographic Investigations (GO-SHIP) programme nearly every year since 1993/94.  This video was filmed by David Menzel, a student at GEOMAR and was created as a collaboration between NOC and BAS.