@Article{LucioCoCaSeRaCa:2007:SoBr,
author = "Lucio, P. S. and Conde, F. C. and Cavalcanti, Iracema Fonseca de
Alabuquerque and Serrano, A. I. and Ramos, A. M. and Cardoso, A.
O.",
affiliation = "{Centro de Geof\ı} and sica de ´ Evora (CGE), Universidade
de ´ Evora, Portugal/Departamento de Estat´\ı and stica
(DEST, UFRN) and {Centro de Geof\ı} and sica de ´ Evora
(CGE), Universidade de ´ Evora, Portugal/Departamento de
Estat´\ı and stica (DEST, UFRN)",
title = "Spatiotemporal monthly rainfall reconstruction via artificial
neural network – case study: south of Brazil",
journal = "Advances in Geosciences",
year = "2007",
volume = "10",
pages = "67--76",
month = "Apr.",
keywords = "rainfall, climatological, artificial neural network, atmospheric
phenomena.",
abstract = "Climatological records users, frequently, request time series for
geographical locations where there is no observed meteorological
attributes. Climatological conditions of the areas or points of
interest have to be calculated interpolating observations in the
time of neighboring stations and climate proxy. The aim of the
present work is the application of reliable and robust procedures
for monthly reconstruction of precipitation time series. Time
series is a special case of symbolic regression and we can use
Artificial Neural Network (ANN) to explore the spatiotemporal
dependence of meteorological attributes. The ANN seems to be an
important tool for the propagation of the related weather
information to provide practical solution of uncertainties
associated with interpolation, capturing the spatiotemporal
structure of the data. In practice, one determines the embedding
dimension of the time series attractor (delay time that determine
how data are processed) and uses these numbers to define the
networks architecture. Meteorological attributes can be accurately
predicted by the ANN model architecture: designing, training,
validation and testing; the best generalization of new data is
obtained when the mapping represents the systematic aspects of the
data, rather capturing the specific details of the particular
training set. As illustration one takes monthly total rainfall
series recorded in the period 1961 2005 in the Rio Grande do Sul
Brazil. This reliable and robust reconstruction method has good
performance and in particular, they were able to capture the
intrinsic dynamic of atmospheric activities. The regional rainfall
has been related to high-frequency atmospheric phenomena, such as
El Nino and La Nina events, and low frequency phenomena, such as
the Pacific Decadal Oscillation.",
copyholder = "SID/SCD",
issn = "1680-7340 and 1680-7359",
language = "en",
targetfile = "Cavalcanti_adgeo-10-67-2007.pdf",
urlaccessdate = "20 abr. 2024"
}