Project I.1.2: Simulation databases
Project Name: I.1.2 Simulation databases
Project Lead: Modeling Team
Web: http://www.stccmop.org/datamart/virtualcolumbiariver/simulationdatabases
Project Description
This project produces 4-dimensional representations of the Columbia River Estuary and plume–the virtual CR–using state of the art 3D baroclinic circulation models, carefully calibrated to both quantitatively match observational records, and to qualitatively represent well-understand estuarine processes. Simulation results span the time period from 1997 to present, at a resolution of 15 minutes. Automated skill assessment, based on quality-controlled data generated by the SATURN observational network, is carried out and the results stored along with the simulation data.
Fit in program
The simulation databases make up the core of the virtual CR, providing historical context and climatological information. Correlation analyses linking ecosystem processes with physical parameters are dependent on the time-series data derived from the simulation databases.
Outcomes
The following simulation databases have been established and are being updated as forcing data become available:
| Database | Domain / code | Short descriptor |
| db21 | Estuary SELFE |
Currently in progress, this is anticipated to become the next reference circulation database for the estuary. Changes are targeted at improved representation of temperatures and salinity intrusion length, aspects of major significance for our coastal margin science. DB21 uses improved code, involves a slightly more extended domain than db16, and corrects ocean temperatures provided by NCOM through empirical S-T diagrams. |
| db14 | Beaver to shelf SELFE |
Our reference circulation database for the river-to-shelf domain; i.e., Beaver Army dock to shelf between latitudes 39N (CA) and 49N (BC). |
| db16 | Estuary SELFE |
Our reference circulation database for the estuary, until completion of db21. Upon completion of db21, a cross-skill comparison will determine what database will become the reference, and for what processes. |
| db11 | Bonneville to shelf ELCIRC |
The original reference circulation database for the river-to-shelf domain. Replaced by db14, after cross-skill comparison. |
Products such as maps, time series, climatologies, and skill assessment metrics, are produced for all simulation databases, in order to characterize (a) circulation state and variability, (b) modeling skill and (c) operational robustness.
