Year: 2018
Type: article
Abstract: Here we propose a technique that successfully reconstructs ocean bathymetry from the free surface velocity and elevation data. This technique is based on the principles of open-channel hydraulics, according to which a sub-critical flow over a seamount creates a free surface dip. The proposed method recognizes that such a free surface dip contains the signature of the bottom topography, hence inverts the free surface to reconstruct the topography accurately. We applied our inversion technique on re-analysis data and reconstructed the Mediterranean Sea and the Red Sea bathymetries of 1/12° resolution with approximately 90% accuracy.
Source: Physics of Fluids
DOI: 10.1063/1.5055944
Authors: Subhajit Kar, Anirban Guha
Institution: Indian Institute of Technology Kanpur
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2883099825