Front and skeleton features based methods for tracking salinity propagation in the ocean

Advection-based tracking and analysis of salinity movement in the Indian Ocean

“…This can be attributed to the cyclic flow of high salinity water (≥ 35 psu), coming from Arabian sea and entering BoB from the south, which moves northward and mixes with this fresh water. The movement of this high salinity water has been studied and analyzed in previous work (Singh et al, 2022). This paper extends the computational methods and analysis of salinity movement.…”

“…A recent paper (Singh et al, 2022) introduces two approaches to represent the HSC with a focus on its shape characteristics -a surface front that indicates northward movement and a skeleton that represents overall shape of the volume. The ≥35 psu isovolume is a coarse representation of the HSC.…”

“…Front and skeleton-based HSC tracking methods (Singh et al, 2022) were used to document the HSC path within the BoB. However, this movement of the HSC is a result of complex ocean dynamics that includes advection, diffusion, and mixing.…”

“…BoB is a complex system of various physical phenomena, many of which influence salinity transport. In previous work (Singh et al, 2022) we studied the overall movement of salinity in BoB, which is the result of all phenomena working in tandem. The surface front tracking based approach to study HSC movement is direct, simple, effective, and amenable to efficient computation.…”

“…Upon entering the BoB, high salinity water continuously evolves and changes its physical properties. A previous study (Singh et al, 2022) used geometric and topological descriptors to track high salinity…”