The Non-Boussinesq ROMS and Its Applications

Y. Tony Song
Jet Propulsion Laboratory
4800 Oak Grove Drive, Pasadena, CA 91109


ABSTRACT

Satellite-observed ocean-bottom-pressure (OBP) represents oceanic mass
changes, while sea-surface-height (SSH) gives ocean volume changes; both are fundamentally important information about ocean dynamics and climate changes. For the last several years, we have been trying to develop a non-Boussinesq (mass conserving) terrain-following ocean model to better represent these two satellite observations. In this talk, I will show how a stretched-pressure coordinate (sp-coordinate) can be used in ROMS for
(1) directly applying GRACE-observed ocean-bottom-pressure (OBP) and altimeter-measured SSH in large-scale ocean modeling, (2) estimating inter-basin transports within Asian Marginal Seas, and (3) applications to earthquake tsunami genesis and simulations.