ANN Bias Correction Model for Significant Wave Height Hindcast, Trained on The Basis of Satellite Altimetry Observations


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Amarouche K., Akpınar A., Kankal M., Kamranzed B.

SCACR2023: 10th Short Course/Conference on Applied Coastal Research, İstanbul, Türkiye, 4 - 06 Eylül 2023, ss.96

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.96
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

Knowledge of wave climate has become crucial for all marine activities, e.g. coastal and offshore structure design, naval architecture and marine renewable energy exploitation. For this application, it is necessary to dispose of accurate hindcast wave data. Accurate hindcast of significant wave height (SWH) allows us to ensure sustainable and economic development of coastal and offshore structures and to ensure an accurate projection of change and trend in SWH. The performance of 3rd generation spectral wave models has been evaluated for the Black Sea through several studies (Amarouche et al., 2021a; Soran et al., 2022). the results revealed that the accuracy of the wave model for estimating SWH varies depending on the sea location and the wind climate of the area concerned by the simulation (Amarouche et al., 2021b). This variation may depend on the dominance of the swell compared to the wind sea in each location. Thus, the spatial variation in the model accuracy may depend on the precision of the wind input (Çakmak et al., 2019). The calibration of wave models often allowed an improvement in the prediction of SWHs. However, varying amounts of bias can be observed depending on the geographical area and local wind conditions. The bias variation between the different locations also depends on the swell and wind sea contribution rate. There are currently several methods proposed for wave bias correction. Those evaluated by Parker and Hill (2017) are among these methods. Recently, a deep learning-based method was proposed for ocean wave correction (Sun et al., 2022). Thus ANN models are applied for Bias Correction of Operational Storm Surge Forecasts by (Tedesco et al., 2023).