The Diapycnal and Isopycnal Mixing Experiment: A First Assessment
The Diapycnal and Isopycnal Mixing Experiment in the Southern Ocean (DIMES) was designed
as a multi-pronged US and UK CLIVAR effort to measure and to better understand diapycnal mixing
and along-isopycnal eddy transport in the Antarctic Circumpolar Current (ACC), because these
processes together appear to play a key role in the Meridional Overturning Circulation (MOC) (Gille et
al, 2007). The project represents an unusual effort to evaluate simultaneously the roles of diapycnal
and isopycnal mixing, and the program has benefited from close collaboration between observationalists, theoreticians and modelers. Fieldwork for DIMES began in early 2009, and the initial phase of the field observations is now wrapping up. This article provides a brief preliminary summary of early DIMES findings.
Authors: Gille, Sarah T., Ledwell, James, Naveira-Garabato, Alberto, Speer, Kevin, Balwada, Dhruv, Brearley, Alex, Girton, James B., Griesel, Alexa, Ferrari, Raffaele, Klocker, Andreas, LaCasce, Joseph, Lazarevich, Peter, Mackay, Neill, Meredith, Michael P., Messias, Marie-José, Owens, Breck, Sallée, Jean-Baptiste, Sheen, Kathy, Shuckburgh, Emily, Smeed, David A., St.Laurent, Louis C., Toole, John M., Watson, Andrew J., Wienders, Nicolas, Zajaczkovski, Uriel