Salinity and temperature nudging

Salt and Temperature Nudging in SELFE

Salt and temperature nudging is available by means of analysis nudging (Newtonian relaxation). The nudging allows the model state to be reconciled with observations in four dimensions. There are three known examples of this nudging:

- CORIE applications on the Columbia River, assimilating NCOM results near the ocean boundary
- The SEMAME project, using nudging to couple ROMS on the California coast and SELFE on the San Francisco Bay-Delta in a common band along the coast
- Salinity initialization of the Bay-Delta project, which uses salt nudging to shorten long spin up times far upstream of the ocean boundary

Formulation

The nudging formula is an analysis nudging model\[ '"`UNIQ-MathJax1-QINU`"' \]