Woods Hole Oceanographic Institution

Steven R. Jayne

»Sc.D. Thesis
»Recirculation gyres in a beta-plane jet
»Forcing and sampling of ocean models
»Thermohaline circulation - sea ice feedback
»Recirculation forced by an unstable jet
»Tidal dissipation over rough topography
»Dynamics of ocean heat transport variability
»Deep ocean currents from GRACE
»Estimates of tidally-driven mixing
»Millennial climate variability
»Oceanic eddy heat transport
»Ocean heat content from GRACE
»Tidally-driven mixing in an ocean model
»Ocean bathymetry and Earth's climate
»Bathymetry from space
»Subtropical mode water during KESS
»North Atlantic Ocean circulation from GRACE
»Subtropical mode water in the Kuroshio Extension
»Tidal mixing during the Last Glacial Maximum
»Kuroshio northern recirculation gyre
»Bottom pressure in KESS and GRACE
»Ocean model metrics
»Abyssal mixing in CCSM
»Kuroshio Extension jet and transport
»The Morphology of Steve

S. R. Jayne and R. Tokmakian , Forcing and sampling of ocean general circulation models: Impact of high-frequency motions , Journal of Physical Oceanography, 1997

Significant inertial oscillations are present in all primitive equation ocean general circulation models when they are forced with high-frequency (period order of days) wind stress fields. At specific latitudes the energy of the wind stress forcing near the frequency of the inertial oscillations excites large amplitudes in the surface kinetic energy. The frequently used strategy of subsampling model output at several day intervals then leads to aliasing of the energetic inertial currents into lower frequencies that vary with latitude, which severely corrupts even integral quantities like meridional heat transport. This note discusses the effect of forcing and sampling at short periods. Schemes are provided that will remove the aliased energy from the model fields stored for later analysis.

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