Tidal Simulation Using Regional Ocean Modeling System (ROMS)
Abstract
A three dimensional general circulation model is used to simulate tides along the central western coast of U.S. The model, which is configured from the Regional Ocean Modeling System (ROMS), is three-level nested with the finest resolution of 1.6 km in the Monterey Bay, California. Forced by tidal signal along the open boundaries in west, north and south directions, ROMS can simulate barotropic tides reasonably well in the region. The total discrepancy of the amplitudes of eight major tide constituents, as measured by root of summed squares, is 3.5 cm in the open ocean compared with tide amplitudes estimated by Topex/POSEIDON along-track altimetry observation. Along the coastal region, the discrepancy of amplitudes is 5.4 cm which is about 10% of the amplitude of the most energetic M2 constituent. For these major tide constituents, the phase error is generally much less than half hour. The simulated sea surface tidal current, which is heavily influenced by internal tide activity, shows sensitivity to stratification.
- Publication:
-
ESA Special Publication
- Pub Date:
- July 2006
- Bibcode:
- 2006ESASP.614E..37W