Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
Figure 4
700 hPa daily positive vorticity (10−5·s−1) from January–June in (a) 2004, (b) 2005, and (c) 2006 along 40°W–20°E averaged between 2.5°S and 12.5°S. The vertical solid line at 10°E represents the approximate eastern limit of the African continent. Positive strong daily rainfall anomalies (>10 mm·day−1) over ENEB are schematized by black dots at 36°W. Selected EW onsets, marked by squares, are connected by a dashed line to the strong rainy events.
