Heavy Rainfall Episodes in the Eastern Northeast Brazil Linked to Large-Scale Ocean-Atmosphere Conditions in the Tropical Atlantic
Figure 3
(a) Monthly climatology averaged for the period 1997–2006 of GPCP rainfall (solid line, mm·day−1) calculated over ENEB and 700 hPa positive vorticity (light dashed line, 10−8·s−1) inside the area 2.5°S–12.5°S, 40°W–20°E. (b) Same as (a) during the three years 2004–2006; Monthly number of MCSs (lifespan > 2 hours) that moved westward (dashed-dotted line) from 20°W up to ENEB and had a dissipation coordinate ranging between 2.5°S and 12.5°S.
