Evaluation and comparison of semi-empirical and numerical methods in predicting wave characteristics in the South Caspian Sea

Hajebi, Zahra; Amouzegar, Adel; Naeeni, Seyed Taghi Omid

doi:10.61186/NMCE.2407.1066

Evaluation and comparison of semi-empirical and numerical methods in predicting wave characteristics in the South Caspian Sea

Document Type : Case Study

Authors

zahra hajebi ¹

adel amouzegar ²

Seyed Taghi Omid Naeeni ³

¹ MSc student, School of Civil Engineering, faculty of engineering, University of Tehran

² School of Civil Engineering, Faculty of Civil Engineering, Persian Gulf University

³ Associate Professor, School of Civil Engineering, faculty of engineering, University of Tehran

10.61186/NMCE.2407.1066

Abstract

The prediction of wave parameters based on measured wind parameters plays a crucial role in Coastal and Ocean Engineering. This is particularly important in designing coastal and offshore structures, as there may be limited availability of wave measurement stations. In such cases, wave prediction methods can be used as an alternative to estimate wave characteristics during the design phase of various inshore and offshore structures.This research compares the prediction of wave characteristics between different semi-empirical methods and the MIKE21-SW model. For this aim, the measurements of the wave recorder buoy of the Caspian Oil Company used for wind data as well as wave characteristics. Statistical indices indicate that the SPM method is the most applicable method than other Semi-empirical methods for predicting the wave characteristics. The error of the semi-empirical method is about twice than the numerical method. There is more correlation between the obtained and measured data in the numerical method compared to the semi-empirical methods.

Keywords

wave prediction

Mike21-SW Model

semi-empirical method

wave measurement

coastal engineering

Subjects

Hydraulic Engineering

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