Abstract
The South America Monsoon System (SAMS) is the dominant mode of climate variability over most of the continent, from Amazon River to the South of La Plata Basin, with summer precipitation exceeding 55 % of the annual total. Interannual to multidecadal variability of the SAMS is also related to the El Niño Southern Oscillation (Garreaud et al., 2009), the North Atlantic Oscillation (Robert…