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Original Articles

Sea Level Change Analysis and Models Identification Based on Short Tidal Gauge Measurements in Alexandria, Egypt

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Pages 1-20 | Received 28 Dec 2014, Accepted 27 Nov 2015, Published online: 21 Mar 2016
 

ABSTRACT

Sea level change analysis and models identification are important factors used for coastal engineering applications. Moreover, sea level change modeling is used widely to evaluate and study shoreline and climate changes. This study intends to analyze and model Alexandria, Egypt sea level change by investigating yearly tide gauge data collected in a short duration (2008–2011). The time-frequency method was used to evaluate the meteorological noise frequencies. Two models were used to predict the time series data: Neural Network Autoregressive Moving Average (NNARMA) and Adaptive Neuro-Fuzzy Inference System (ANFIS). The time-frequency analysis and models identification results showed that no extreme events were detected for Alexandria point during the monitoring period. Therefore, the NNARMA and ANFIS models can be used to identify the sea level change. The estimates of the models were compared with the three different statistics, determination coefficient, root mean square errors, and auto-correlation function. Comparison of these results revealed that the NNARMA model performs better than the ANFIS model for the study area.

Acknowledgements

The authors would like to thank the National Water Research Center team for providing the data and the reviewers for their valuable comments and suggestions to improve the quality of the paper. They are also grateful to Prof. Emad Elbeltagi for his technical support.

Funding

This work was supported by National Water Research Center and Mansoura University, Egypt.

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