Atlantic Convergence Zone (ZCAS)

Climatologically the South Atlantic Convergence Zone (SACZ) is characterized as a persistent clouds band with northwest-southeast orientation that connects the southern Amazon region with the western portion of the Subtropical South Atlantic having a duration of at least four days with quasi-stationary behavior during the austral summer. Satellite images, maps of outgoing longwave radiation(OLR) and precipitation aid in the identification and synoptic climatological of this system.

Enhanced IR Image - 30/11/2010 1800UTC