The drought of the century in the Amazon Basin: an analysis of the regional variation of rainfall in South America in 1926

Earle Williams, Alaor Dall' Antonia, Vitoria Dall' Antonia, Jorge Mathias de Almeida, Francisco Suarez, Brant Liebmann, Ana Claudia Mendes Malhado
2005 Acta Amazonica  
The most severe drought in tropical South America during the 20th century occurred in 1926. This extreme El Nino year is further documented anecdotally, in an update of the river stage observations at Manaus, and in annual rainfall records. The annual rainfall anomaly is an east-west dipole over tropical South America, with drought to the west over the Amazon basin whose discharge is documented at Manaus, and with a surplus to the east and including the Nordeste region of Brazil. Speculations
more » ... zil. Speculations about a role for aerosol in aggravating the drought are discussed.
doi:10.1590/s0044-59672005000200013 fatcat:kwvrzdm6djbrrnoo2yr34sgihu