The extreme 2014 flood in south-western Amazon basin: the role of tropical-subtropical South Atlantic SST gradient
By J. Espinoza, J. Marengo, J. Ronchail, J. Carpio, L. Flores, J. Guyot. 2014
186 citations recorded by the source corpus.
Unprecedented wet conditions are reported in the 2014 summer (December–March) in South-western Amazon, with rainfall about 100% above normal. Discharge in the Madeira River (the main southern Amazon tributary) has been 74% higher than normal (58 000 m3 s−1) at Porto Velho and 380% (25 000 m3 s−1) at Rurrenabaque, at the exit of the Andes in summer, while levels of the Rio Negro at Manaus were 29.47 m in June 2014, corresponding to the fifth highest record during the 113 years record of the Rio Negro. While previous floods in Amazonia have been related to La Niña and/or warmer than normal tropical South Atlantic, the 2014 rainfall and flood anomalies are associated with warm condition in the western Pacific-Indian Ocean and with an exceptionally warm Subtropical South Atlantic. Our results suggest that the tropical and subtropical South Atlantic SST gradient is a main driver for moisture transport from the Atlantic toward south-western Amazon, and this became exceptionally intense during summer of 2014.
Subfields: Global and Planetary Change, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/d58862ed89a45ebff991eeae326635d68bc0ed64
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In Global and Planetary Change
Citations in the corpus
- Recent precipitation trends, flash floods and landslides in southern Brazil (2016, background): “The number of reported extreme precipitation and related flood events has increased significantly over the last twenty years (Tanoue et al 2016, Silva Dias et al 2013, Boers et al 2014, Espinoza et al 2014).”