Numerical simulation and observations of very severe cyclone generated surface wave fields in the north Indian Ocean

Journal of Earth system science

P G Remya1¹  P Sirisha1¹  B Venkateswara Rao2²  T M Balakrishnan Nair1¹ 

[1] Indian National Centre for Ocean Information Services, Pragathi Nagar, Hyderabad 500 090, India.$$;Centre for Water Resources, Jawaharlal Nehru Technological University, Hyderabad 500 085, India.$$

关键词: Wave forecast;    tropical cyclone;    wave power;    abnormality index;    wave spectrum;    MIKE 21 SW model.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Accurate wave forecast is most needed during tropical cyclones as it has adverse effects on the entire marine activities. The present work evaluates the performance of a wave forecasting system under very severe cyclonic conditions for the Indian Ocean. The wave model results are validated separately for the deep water and shallow water using in-situ observations. Satellite altimeter observations are also utilized for validation purpose. The results show that the model performance is accurate (SI < 26% and correlation > 0.9) and consistent during very severe cyclones (categories 4 and 5). The power of the cyclone waves which hit in the eastern Indian coastal region is also analysed and it reveals that the coastal region which lies on the right side of the cyclone track receives high amount wave energy throughout the cyclone period. The study also says that the abnormal waves mostly present on the right side of the track.

【 授权许可】

Unknown