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

Autor(es)

Builes-Jaramillo, Alejandro ^{[1, 2]} ; Ramos, Antonio M. T. ^[3] ; Poveda, German ^[1]

Afiliação do(s) autor(es)

^[1] Univ Nacl Colombia, Fac Minas, Dept Geosci & Environm, Sede Medellin, Carrera 80 X Calle 65, Medellin 050041 - Colombia

^[2] Inst Univ Colegio Mayor Antioquia, Fac Arquitectura & Ingn, Carrera 78 65-46, Edificio Patrimonial, Medellin 050034 - Colombia

^[3] Natl Inst Space Res INPE, BR-12227010 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Chaos; v. 28, n. 8 AUG 2018.
• Citações Web of Science: 2

Resumo

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 Nino 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 Nino-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. Published by AIP Publishing. (AU)

• Processo FAPESP: 14/14229-2 - Dinâmica não linear e caótica com distribuição espacial e sua caracterização via uso do enfoque de Redes Complexa
• Beneficiário: Antônio Mário de Torres Ramos
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/50122-0 - Fenômenos dinâmicos em redes complexas: fundamentos e aplicações
• Beneficiário: Elbert Einstein Nehrer Macau
• Modalidade de apoio: Auxílio à Pesquisa - Temático