WVNarrowBandGeostrophicForcing

Create narrow-band geostrophic fixed-amplitude forcing.

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Declaration

 self = WVNarrowBandGeostrophicForcing(wvt,options)

Parameters

• wvt transform that owns and evaluates the forcing
• options.name unique forcing-registry name; default "narrow-band geostrophic forcing"
• options.r optional authoritative damping rate in inverse seconds
• options.k_r arrest wavenumber in radians per meter; default 2*wvt.dk
• options.k_f forced-band center in radians per meter; default 20*wvt.dk
• options.j_f forced vertical-mode number; default 1
• options.u_rms target surface root-mean-square speed in meters per second; default 0.2
• options.initialPV "none", "narrow-band", or "full-spectrum"; default "narrow-band"
• options.A0_indices canonical persisted selected indices; requires A0bar
• options.A0bar canonical persisted selected values; requires A0_indices

Returns

• self configured WVNarrowBandGeostrophicForcing

Discussion

Ordinary construction optionally initializes wvt.A0 before selecting the forced band. The A0_indices and A0bar options form the canonical restart/conversion path: both must be supplied together, and that path never initializes wvt.A0 or consumes random numbers.