Atmosphere-Land Bridge between the Pacific and Tropical North Atlantic SST’s through the Amazon River basin during the 2005 and 2010 droughts

The present work uses a new approach to causal inference between complex systems called the Recurrence Measure of Conditional Dependence (RMCD) based on the recurrence plots theory, in order to study the role of the Amazon River basin (AM) as a land-atmosphere bridge between the Niño 3.0 region in t...

Full description

Bibliographic Details
Published in:Chaos: An Interdisciplinary Journal of Nonlinear Science
Main Authors: Builes-Jaramillo, Alejandro, Ramos, Antônio M. T., Poveda, Germán
Other Authors: European Commission, Universidad Nacional de Colombia, Fundação de Amparo à Pesquisa do Estado de São Paulo, Deutscher Akademischer Austauschdienst
Format: Article in Journal/Newspaper
Language:English
Published: AIP Publishing 2018
Subjects:
North Atlantic
Online Access:http://dx.doi.org/10.1063/1.5020502
https://pubs.aip.org/aip/cha/article-pdf/doi/10.1063/1.5020502/14620095/085705_1_online.pdf
Description
Summary:The present work uses a new approach to causal inference between complex systems called the Recurrence Measure of Conditional Dependence (RMCD) based on the recurrence plots theory, in order to study the role of the Amazon River basin (AM) as a land-atmosphere bridge between the Niño 3.0 region in the Pacific Ocean and the Tropical North Atlantic. Two anomalous droughts in the Amazon River basin were selected, one mainly attributed to the warming of the Tropical North Atlantic (2005) and the other to a warm phase of El Niño–Southern Oscillation (2010). The results of the RMCD analysis evidence the distinctive behavior in the causal information transferred between the two oceanic regions during the two extreme droughts, suggesting that the land-atmosphere bridge operating over the AM is an active hydroclimate mechanism at interannual timescales, and that the RMCD analysis may be an ancillary resort to complement early warning systems.

Similar Items