Browsing by Author "Barreiro, Marcelo"
Now showing items 1-11 of 11
-
A study of the air-sea interaction in the South Atlantic Convergence Zone through Granger causality
(Wiley, 2015-10-01)
Article
Open AccessAir-sea interaction in the region of the South Atlantic Convergence Zone (SACZ) is studied using Granger causality (GC) as a measure of directional coupling. Calculation of the area weighted connectivity indicates that the ... -
Assessing the direction of climate interactions by means of complex networks and information theoretic tools
(Institute of Physics (IOP), 2015-03-01)
Article
Open AccessAn estimate of the net direction of climate interactions in different geographical regions is made by constructing a directed climate network from a regular latitude-longitude grid of nodes, using a directionality index ... -
Climate networks at inter-annual and intra-season time scales constructed via ordinal time-series analysis
(2012)
Conference lecture
Restricted access - publisher's policy -
Detecting long-range teleconnections in the climate network via ordinal pattern time-series analysis
(2012)
Conference lecture
Open Access -
Distinguishing the effects of internal and forced atmospheric variability in climate networks
(University of Thechnology and Agriculture Nicholas Copernicus University, 2014-05-26)
Article
Open AccessThe fact that the climate on the earth is a highly complex dynamical system is well-known. In the last few decades great deal of effort has been focused on understanding how climate phenomena in one geographical region ... -
ENSO and SAM Influence on the Generation of Long Episodes of Rossby Wave Packets During Southern Hemisphere Summer
(2021-12-27)
Article
Open AccessThis study assesses the impact of low-frequency climate modes on Rossby Wave Packets (RWPs) during southern hemisphere summer. In particular, we focus on long-lived RWPs (lifespan above 8 days) and determine how El ... -
Global atmospheric dynamics investigated by using Hilbert frequency analysis
(2016-11-16)
Article
Open AccessThe Hilbert transform is a well-known tool of time series analysis that has been widely used to investigate oscillatory signals that resemble a noisy periodic oscillation, because it allows instantaneous phase and frequency ... -
Identifying large-scale patterns of unpredictability and response to insolation in atmospheric data
(Macmillan Publishers, 2017-03-30)
Article
Open AccessUnderstanding the complex dynamics of the atmosphere is of paramount interest due to its impact in the entire climate system and in human society. Here we focus on identifying, from data, the geographical regions which ... -
Improving the prediction of the Madden-Julian Oscillation of the ECMWF model by post-processing
(2022-08-23)
Article
Open AccessThe Madden–Julian Oscillation (MJO) is a major source of predictability on the sub-seasonal (10 to 90 d) timescale. An improved forecast of the MJO may have important socioeconomic impacts due to the influence of MJO on ... -
Inferring long memory processes in the climate network via ordinal pattern analysis
(2011-03)
Article
Open AccessWe analyze climatological data from a complex networks perspective, using techniques of nonlinear time series symbolic analysis. Specifically, we employ ordinal patterns and binary representations to analyze monthly ... -
Quantifying changes in spatial patterns of surface air temperature dynamics over several decades
(2018-04-18)
Article
Open Access
