Statistical and dynamical descriptions of submesoscale wave-current interactions in a coastal region

Abstract

We have examined the in-situ surface wave observations using satellite altimetry, phased-array high-frequency radars, and a bottom mounted wave buoy in a coastal region along with surface gravity wave model simulations in terms of (1) statistical properties among different platforms and (2) wave-current interactions during onshore propagations. The estimated signi cant wave heights (SWHs) via interpretation of the second order peaks of the Bragg backscattered radar signals for a period of one year are examined with their spatial structures and transition between offshore and onshore regions and compared with climatology of the altimeter-derived SWHs. We highlight that the data quality assurance and quality control using altimeter-derived SWHs and the wave-current interactions at the scale of $O$(1) km in a statistical point of view, which will enhance the understanding of the coastal circulation in the inner shelf region.