Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Constructing regional climate networks in the Amazonia during recent drought events

Full text
Author(s):
Guo, Heng [1] ; Ramos, Antoanio M. T. [2] ; Macau, Elbert E. N. [2] ; Zou, Yong [1] ; Guan, Shuguang [1]
Total Authors: 5
Affiliation:
[1] East China Normal Univ, Dept Phys, Shanghai - Peoples R China
[2] Natl Inst Space Res, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: PLoS One; v. 12, n. 10 OCT 17 2017.
Web of Science Citations: 0
Abstract

Climate networks are powerful approaches to disclose tele-connections in climate systems and to predict severe climate events. Here we construct regional climate networks from precipitation data in the Amazonian region and focus on network properties under the recent drought events in 2005 and 2010. Both the networks of the entire Amazon region and the extreme networks resulted from locations severely affected by drought events suggest that network characteristics show slight difference between the two drought events. Based on network degrees of extreme drought events and that without drought conditions, we identify regions of interest that are correlated to longer expected drought period length. Moreover, we show that the spatial correlation length to the regions of interest decayed much faster in 2010 than in 2005, which is because of the dual roles played by both the Pacific and Atlantic oceans. The results suggest that hub nodes in the regional climate network of Amazonia have fewer long-range connections when more severe drought conditions appeared in 2010 than that in 2005. (AU)

FAPESP's process: 14/14229-2 - Non-linear and chaotic dynamics with spatial distribution and their characterization by using the complex network approach
Grantee:Antônio Mário de Torres Ramos
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/07373-2 - Development of quantifiers through Information Theory techniques and probabilistic graphical models with application in the Amazon Region
Grantee:Antônio Mário de Torres Ramos
Support type: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 15/50122-0 - Dynamic phenomena in complex networks: basics and applications
Grantee:Elbert Einstein Nehrer Macau
Support type: Research Projects - Thematic Grants
FAPESP's process: 15/23607-3 - Uncovering coupling directions in climate systems
Grantee:Elbert Einstein Nehrer Macau
Support type: Research Grants - Visiting Researcher Grant - International