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| Ticket | Owner | Reporter | Resolution | Summary |
|---|---|---|---|---|
| #371 | Done | Expanded NL_BULK_FLUXES to other algorithms | ||
| Description |
Expanded the usage of NL_BULK_FLUXES as reported in previous update src:ticket:368 on 10/06/09. Recall that now NL_BULK_FLUXES is used to handle the reading of surface fluxes computed by the nonlinear model (bulk_flux.F or a basic state NetCDF file) in the adjoint-based algorithms. The routines tl_get_data.F, tl_set_data, ad_get_data.F, and ad_set_data.F follow the same strategy as in the representer model routines (rp_get_data.F and rp_set_data.F). This means that the functionality of BULK_FLUXES and NL_BULK_FLUXES can be used in all the adjoint-based algorithms including all the 4D-Var drivers. Removed the obsolete IOM C-preprocessing option. This cleaned some of the CPP directives in the code. |
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| #372 | Done | Call bulk_flux only in the first run of the nonlinear model | ||
| Description |
The data assimilation algorithms were updated to call only the routine bulk_flux in the first call to the nonlinear model when both BULK_FLUXES and NL_BULK_FLUXES are activated. The surface fluxes computed from bulk_flux are stored in the basic state NetCDF file. These are processed in the outer and inner loops and adjusted with the minimization increments. Many thank to Andy more with his help testing this option. I did some cleaning:
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| #373 | Done | Level of no motion in 4DVar Balance Operator | ||
| Description |
The error covariance balance operator was updated to include the options for what state variable to use as a constraints (in the off-diagonal terms), and a level of no motion option when computing the balanced free-surface contribution. Notice that the following new parameters were added to input script External/s4dvar.in: ! Balance operator level of no motion depth (m) used when computing balanced
! free-surface contribution, [1:Ngrids].
LNM_depth == 1000.0d0 ! meters, positive
! Balance operator level of no motion flag used to compute balanced
! free-surface contribution:
!
! [0] Integrate from local bottom to the surface
! [1] Integrate from LNM_depth to surface or integrate from local bottom
! if shallower than LNM_depth
!
LNM_flag = 0
! Balance operator logical switches for state variables to consider in the
! error covariance multivariate constraints.
balance(isSalt) = T ! salinity
balance(isFsur) = T ! free-sruface
balance(isVbar) = F ! 2D momentum (ubar, vbar)
balance(isVvel) = T ! 3D momentum (u, v)
I also cleaned few things:
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