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Challenges in Modeling Satellite-Observed SSH and Ocean-Bottom Pressure
Tony Song
Jet Propulsion Laboratory
(Abstract received 05/08/2009 for session X)
ABSTRACT
Satellite-observed sea-surface-height (SSH) and ocean-bottom-pressure (OBP) are fundamentally important information about ocean dynamics and climate change. The altimetry (T/P-Jason) SSH gives ocean volume changes; while GRACE (gravity recovery and climate experiment) -inferred OBP represents ocean mass changes. They are not the same oceanic variable. This talk explains challenges facing commonly-used OGCMs in simulating these two variables correctly for both physical consistency and numerical efficiency. Then, two related science problems will be discussed in details: the ENSO-like subpolar oscillation in the North Pacific and inter-ocean transport estimation from altimetry SSH and gravimetry OBP data.
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2009 LOM Workshop, Miami, Florida Jume 1 - 3, 2009