ASCLME FRS Algoa Cruise Report 2010
The South Equatorial Current (SEC) separates when it reaches Madagascar at about 17S into a northward part and a southward part, the East Mada- gascar Current (EMC). Interannual variability in the strength of the SEC, and thus of the EMC, is associated with the Indian Ocean Dipole (IOD; Palastanga et al., 2006). Where the EMC separates from the coast south of Madagascar, eddies and bipoles are often formed (de Ruijter et al., 2004). Many of these continue southwestward and eventually feed into the Agulhas Current (e.g. Schouten et al., 2002). The ow from the EMC can also take an alternative path upon leaving Madagascar, retro ecting to join with the Subtropical Indian Ocean Countercurrent (Palastanga et al., 2007; Siedler et al., 2009). The mean and variability of the ow in the region are not well known, much less the relative importance of dierent pathways or what mechanisms determine the routes taken (Quartly et al., 2006).
26 Feb 2013