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Effect of El Niño/Southern Oscillation on rainfall erosivity in Santa Maria (RS)

Gizelli Moiano de Paula, Nereu Augusto Streck, Alencar Junior Zanon, Flávio Luiz Foletto Eltz, Arno Bernardo Heldwein, Simone Erotildes Teliginski Ferraz

01/Aug/2010

El Niño/Southern Oscillation (ENSO) affects the weather and climate of several locations, causing changes in the atmospheric circulation and climate variables, mainly rainfall, in all regions of Brazil. In southern Brazil, during El Niño years (the positive phase of ENSO), rainfall is often above normal whereas during La Niña years (the negative phase of ENSO), rainfall is often below normal. Some rainfall properties are affected by ENSO, such as frequency, intensity and amount. These properties are important to define erosive rainfall events. […]