Insertion, Validation, and Application of Barotropic and Baroclinic Tides in 1/12 and 1/25 Degree Global HYCOM
Abstract
A partnership of institutions (academia and government) is collaborating on inserting and validating barotropic and baroclinic tides in 1/12 and 1/25 numerical simulations of the global ocean. The collaboration also has applied and will apply the results of the 1/12 and 1/25 simulations to a number of problems of scientific interest, described in further detail below. This partnership builds on the strong relationship that the lead PI of this proposal, Brian Arbic, has established since 2006 with the Naval Research Laboratory (NRL) and Florida State University (FSU). NRL and FSU have a longstanding relationship, developed during the National Oceanographic Partnership Program (NOPP)- supported HYCOM (HYbrid Coordinate Ocean Model) consortium effort, to develop and transition an eddy-resolving, real-time global and basin-scale ocean prediction system. These systems have been or are in the process of being transitioned for operational use by the U.S. Navy at the Naval Oceanographic Office (NAVOCEANO), Stennis Space Center, MS. This project builds upon work begun with Naval Research Laboratory contract N000173-06-2-C003, and reported on in Arbic et al. (2010). The partnership will utilize global HYCOM, run at horizontal resolutions of 1/12 and 1/25 , with barotropic and baroclinic tides inserted into an eddy-resolving ( eddying ) circulation. Thus far, most of the global NRL simulations which include tides have been forward simulations, that is, simulations without data assimilation. The NRL group has shown that the data assimilation procedure they currently use on non-tidal motions can be used in simulations with embedded tides without breaking either the non-tidal motions (i.e. the eddying general circulation) or the tides themselves. The next step is to perform data assimilation on the tides as well. The NRL group is currently testing two quick-and-dirty schemes to assimilate tides into eddying HYCOM.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2012
- Accession Number
- ADA580286
Entities
People
- Brian K. Arbic
Organizations
- University of Michigan