Near-Inertial Waves in Realistically Forced HYCOM Simulations with High-Resolution Atmospheric Coupling
Abstract
The global Hybrid Coordinate Ocean Model (HYCOM) has been extensively validated and optimized for surface and internal tidal waves. So far, little effort has been dedicated to validating its performance with respect to near-inertial waves. We do not yet know how much wind energy is transferred to near-inertial gravity waves in HYCOM, how they propagate, where these waves dissipate, and how realistic these near-inertial motions are. Our team, consisting of PIs from the University of Southern Mississippi, the University of Michigan, Florida State University, and the Naval Research Laboratory, proposes to validate existing 1/12?? and 1/25?? HYCOM solutions with field observations collected during NISKINE (and from other sources). These HYCOM simulations are 1-way and 2-way coupled with the atmospheric NAVGEM model. We also propose to do new high resolution 1/75?? simulations of the North Atlantic, 1-way coupled with a higher resolution atmospheric NAVGEM forcing. We will compute the near-inertial energy, energy fluxes, and dissipation in HYCOM and compare these with available observations. This project may also elucidate the effects of the increase in model resolution on near-inertial kinetic energy levels. Our HYCOM simulations also can be used to guide fieldwork efforts.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 26, 2018
- Source ID
- N000141812544
Entities
People
- Brian K. Arbic
Organizations
- Board of Regents of the University of Michigan
- Office of Naval Research
- United States Navy