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Artificial Neural Network for Predicting Extreme Sea Level Variation Associated with Severe Storms

de Oliveira, M.M.F.Ebecken, N.F.F.de Oliveira, J.L.F.Nunes, L.M.P.

This paper presents an Artificial Neural Network (ANN) model developed to predict extreme sea level variation in Santos basin on the Southeast region of Brazil, related to the passage of frontal systems associated with cyclones. A methodology was developed and applied to Petrobras water deep data set. Hourly time series of water level were used in a deep point of 415 meters. 6-hourly series of atmospheric pressure and wind components from NCEP/NCAR reanalysis data set were also used from ten points over the oceanic area. Correlations and spectral analyse were verified to define the time lag between the meteorological variables and the coastal sea level response to the occurrences of the extreme atmospheric systems. These correlations and time lags were used as input variables of the ANN model. This model was compared with multiple linear regression (MLR) and presented the best performance, generalizing the effect of the atmospheric interactions on extreme sea level variations.

http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5715224

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