This module examines mesoscale ocean circulation models and features and processes that they predict. These models simulate temperature, salinity, currents, and elevation in 3 dimensions through a period of time. They have sufficient resolution to simulate features like fronts, eddies, upwelling, and internal tides. In this module, we examine current operational models, limitations to model forecasts, examples of predicted ocean features, and potential applications.
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After completing this module, you should be able to do the following things:
1. List the properties that ocean models forecast
2. Recall the size of features that mesoscale ocean models can forecast
3. Describe the assumptions that go into an ocean model
4. List the limitations to ocean model forecasts
5. Identify the following ocean structures in forecast products:
• Current systems
• Fronts
• Eddies
6. Identify the following ocean phenomena in forecast products:
• Eddy formation and dissipation
• Upwelling
• Internal tides
7. Describe operational applications of ocean models
8. Recall the major defining attributes of the following operational ocean models:
• Navy Layered Ocean Model (NLOM)
• Navy Coastal Ocean Model (NCOM)
• Hybrid Coordinate Ocean Model (HYCOM)
• Shallow Water Analysis and Forecast System (SWAFS)
• Advanced Circulation Model (ADCIRC)
Model, ocean, mesoscale, currents, temperature, salinity, sea surface height, SSH, SST, eddy, front, internal tides, upwelling, NLOM, NCOM, HYCOM, SWAFS, ADCIRC, search and rescue, optimal track ship routing, ocean heat content, acoustics
July 2014: The fundamental science concepts in this lesson are still valid. The models are dated, but the concepts are solid.Although the annual sea ice status has changed since this lesson was published, the conclusion is unchanged. The International Ice Patrol website has changed, but the products are still current.
