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Christopher A. Edwards¹
Milena Veneziani¹, Gregoire Broquet¹, Brian Powell ¹, Andrew M. Moore,²
James D. Doyle³, David Foley ⁴, Patrick Heimbach ⁵, Carl Wunsch ⁵

(1) Institute for Marine Sciences, University of California, Santa Cruz, USA
(2) Ocean Sciences Department, University of California, Santa Cruz, USA
(3) Naval Research Laboratory, Marine Meteorology Division, Monterey, USA
(4) NOAA/NMFS, PFEL, USA
(5) Department of Earth Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, USA

Main authors appear in bold

We report on recent numerical experiments that investigate and partially quantify the sensitivity of the ocean circulation along the central California coast to large-scale fields resulting from the Gobal Ocean Data Assimilation Experiment. We use the Regional Ocean Modeling System, driven by atmospheric forcing provided by the Navy's Coupled Ocean Atmosphere Mesoscale Prediction System. At the outer boundaries, which extend from Southern California to Washington, the model is forced by output from the ECCO-GODAE effort (Estimating the Climate and Circulation of the Oceans). We present results from this central California project, specifically how forward sensitivity experiments, adjoint sensitivity experiments, and 4-Dimensional Variational Data Assimilation experiments all provide information on the impact that the basin-scale information has on regional circulation models.

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