South American precipitation dipole forced by interhemispheric temperature gradient.

ABSTRACT: Tropical South American hydroclimate sustains the world's highest biodiversity and hundreds of millions of people. Whitin this region, Amazonia and northeastern Brazil have attracted much attention due to their high biological and social vulnerabilities to climate change (i.e. considered climate change hotspots). Still, their future response to climate change remains uncertain. On precession timescale, it has been suggested that periods of decreased western Amazonian precipitation were accompanied by increased northeastern Brazilian precipitation and vice-versa, setting an east-west tropical South American precipitation dipole. However, the very existence of this precession-driven precipitation dipole remains unsettled given the scarcity of long and appropriate northeastern Brazilian recor

SUBMITTER: Campos MC 

PROVIDER: S-EPMC9217799 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature