Published online by Cambridge University Press: 27 October 2009
The Winter Weddell Gyre Study was conducted by an international group of scientists, including members of the Scott Polar Research Institute, from FS Polarstern (FRG) in September and October 1989, in collaboration with RV Akademk Federov (USSR). This was a multi-disciplinary experiment involving biologists, chemists, oceanographers and meteorologists. The SPRI involvement centred on sea-ice research, involving both our own experiments and a programme carried out in collaboration with the other research groups on board. The SPRI programme involved measuring ice thickness; studying the under-ice topography with an upward looking sidescan sonar; investigating the acceleration, tilt and strain of the ice; deploying Argos buoys; aerial photography; iceberg tracking; and two acoustic experiments, one to record ambient noise and the other to acoustically measure the ice thickness.