@InProceedings{PintoNetoPintPint:2011:EfTrSo,
author = "Pinto Neto, Osmar and Pinto, Iara Regina Cardoso de Almeida and
Pinto Junior, Osmar",
affiliation = "{Universidade Camilo Castelo Branco (Unicastelo)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "The effect of the tropical Southern Atlantic index in the monthly
number of thunderstorm days in Rio de Janeiro from 1951 to 2009",
booktitle = "Proceedings...",
year = "2011",
organization = "International Conference on Atmospheric Electricity, 14.",
keywords = "Tropical Southern Atlantic Index, thunderstorm, Southern
Oscillation Index, Pacific decadal oscillation, International
Sunspot Number.",
abstract = "The goal of this study was to investigate if the variability of
the annual number of thunderstorm days (TD) of Rio de Janeiro from
1951 to 2009 is related to any large scale weather phenomena.
Wavelet, cross-wavelet and wavelet coherence analyses, as well as
associated statistical significance tests, were used to
investigate the frequency structure of TD as well as the Tropical
Southern Atlantic Index (TSA), Southern Oscillation Index (SOI),
the Pacific decadal oscillation (PDO) and the International
Sunspot Number (ISN). Wavelet analyses indicated that the
variability of Rio de Janeiros TD can be primarily explained by
two distinct significant (p<0.05) peaks of periodicity of 1 year
and 12 years. The 1 year periodicity in TD is well established,
being associated to the difference in temperature from summer to
winter. Our results suggest that the 12 years periodicity in TD is
mainly caused by fluctuations in the TSA. The cross-wavelet
spectrum of the TD and TSA indicated a significant peak at 12
years. Furthermore, wavelet coherence demonstrated that the
intensity of the 12 years periodicity of the TD and TSA were
significantly positively correlated through time. The study
concludes that TSA contributes significantly to the variability of
the TD in Rio de Janeiro indicating it may be potentially used in
TD forecasting.",
conference-location = "Rio de Janeiro",
conference-year = "08-12 Aug. 2011",
label = "self-archiving-INPE-MCTI-GOV-BR",
language = "en",
targetfile = "The effect of the Tropical Southern.pdf",
urlaccessdate = "03 maio 2024"
}