A GP-BASED APPROACH FOR IMPROVING WIND-WAVE SIMULATIONS OVER THE PERSIAN GULF

Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICOPMAS12_424

تاریخ نمایه سازی: 30 دی 1397

Abstract:

Reliable coastal structure design, sediment transport predictions and future planning all depend on the use of accurate long-term wave data. Wave measurements are notusually available everywhere and on a long-term basis; hence, numerical simulations are to be adopted to obtain such data in locations of interest. It is while the mostimportant role in obtaining reliable simulated wave data is played by well-established and reliable simulated wind field data sets over the study area. Numerical weatherprediction models can be used as a tool to estimate marine surface winds and for providing input parameters to the sea surface wave and ocean circulation numerical models (e.g., Chen et al., 2005; Schulz, et al., 2007, Sousa, et al., 2013; Liu, et al., 2011). In addition, the model results which are to be verified with observational data usually show remarkable bias from the real situation which can be attributed to the very dynamic and unstable nature of the atmospheric phenomena affecting simulation results. The present study aims to reproduce measured wind data from an offshore wave buoy in the central Persian Gulf. The simulated wind data are modified through aGenetic Programing (GP) framework to obtain an optimum correlation factor between the simulated results and observations. This data is used to provide input parametersto the sea surface wave model. The native and modified wind data sets are introduced to the 3rd generation WaveWatch III wave model to simulate the time series ofwave characteristics at the buoy location. The output wave data are compared with the observations to evaluate the efficiency of GP-based method for improving wind/wave simulations over the Persian Gulf.

Authors

S. Abbas Haghshenas

Institute of Geophysics, University of Tehran, Tehran, Iran,

Azadeh Razavi Arab

Institute of Geophysics, University of Tehran, Tehran, Iran

Ali Haghighi

Shahid Chamran University of Ahvaz, Iran,

Sarmad Ghader

Institute of Geophysics, University of Tehran, Tehran, Iran,