ARTÍCULO
TITULO

Internal Solitary Wave Activities near the Indonesian Submarine Wreck Site Inferred from Satellite Images

Tongxin Wang    
Xiaodong Huang    
Wei Zhao    
Shihao Zheng    
Yunchao Yang and Jiwei Tian    

Resumen

In the early morning of 21 April 2021 local time, the Indonesian Navy submarine KRI nanggala-402 crashed in the Bali Sea (BS). As internal solitary waves (ISWs) are a great threat to submarine navigation, this paper analyzes the characteristics of ISWs in the BS by surveying satellite remote sensing images collected from 12?21 April 2021. The satellite images revealed active ISWs in the BS near the submarine wreck site with crest lengths approaching 200 km. Originating from the Lombok Strait (LS), the waves travelled northwestward across the BS deep basin, passed through the submarine wreck site, and shoaled onto the continental shelf west of the Kangean Islands, during which process, the propagation speed reached 2.69 m/s in the deep basin and 0.71 m/s in the shallow water. Based on the satellite images, the wave amplitude near the wreck site was reconstructed to be 41 m, and the reconstructed underwater wave structure showed a maximum vertical velocity of 10 cm/s. Satellite images also demonstrated the near-source evidence of ISWs near the Nusa Penida sill of the LS, and their generation were estimated to be related to the southward tidal current troughs.

 Artículos similares

       
 
Guanghua He, Hongfei Xie, Zhigang Zhang and Shuang Liu    
A numerical model is developed to investigate the hydrodynamic characteristics of a moving submarine induced by internal solitary waves (ISWs) in continuously stratified fluids. A new numerical scheme for the generation of ISWs with a current is proposed... ver más

 
Hao Zhang, Junmin Meng, Lina Sun and Shibao Li    
Internal solitary waves (ISWs) near the Dongsha Atoll in the northern South China Sea (SCS) can be divided into incident, reflected, and refracted waves. Compared with the incident and refracted ISWs, the reflected ISWs are less likely to appear, but the... ver más

 
Jiemeihui Li, Yang Shi, Yixin Yang and Xiaodong Huang    
Internal solitary waves in the South China Sea have attracted attention because of their large amplitude and high rate of occurrence. Internal solitary waves have a substantial influence on underwater sound propagation and ambient noise. However, there h... ver más

 
Jingyuan Li, Qinghe Zhang and Tongqing Chen    
A numerical model of internal solitary waves in continuously stratified fluids is developed by introducing a density transport equation to the three-dimensional Navier?Stokes equation and adopting the fully nonlinear models of the Dubreil-Jacotin-Long eq... ver más

 
Bang-Fuh Chen and Yi-Jei Huang    
A numerical model was used to simulate the propagation of internal waves (IW) along the surface layer. The results show that strong water exchange during IW propagation results in strong free surface flow and produces small but distinct free surface wave... ver más