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Concept

Models

Hindcasts

Forecast

Benchmarks

Data Sources

The CORIE modeling system integrates models (primarily SELFE and ELCIRC) and field controls (Fig.1). Focus is on the simulation of 3D circulation, in a region centered in the estuary and plume, but extending from Bonneville Dam to the Eastern North Pacific (Fig.2).

While multiple circulation codes have been used at various stages of the development of CORIE. SELFE and ELCIRC are currently the primary codes. ELCIRC is based on the solution of the shallow water equations for continuity, momentum, and salt and heat balances, using and Eulerian-Lagrangian finite volume method. Grids are horizontally unstructured, with z-coordinates (Fig.2).

CORIE simulations include (a) short term forecasts, (b) actual past conditions (referred to as hindcasts), (c) characteristic climatology conditions, and (d) scenario conditions. River, atmospheric, and ocean forcings are complied, in some cases in quasi-real time, from a variety of sources.

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