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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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o pkg/obcs: modify Stevens boundary conditions so that S/R obcs_calc_stevens |
o pkg/exf (interpolation): |
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computes tendency for temperature and salinity that is then applied to update |
- assume periodicity in X only if input field cover full longitude range. |
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theta and salt in S/R obcs_apply_ts; this requires proper masking of all |
- improve search for lat. index (supposed to be faster, in ~log2(ny) steps, |
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horizontal advection and diffusion contributions on the boundary (in |
and should vectorise). |
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S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and |
- fix input lat of the 2 added row (in case we provide N.pole data). |
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removing the mask in S/R timestep_tracer. The advantage of this approach is |
|
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that the updated tracer values include contributions from the surface |
checkpoint63h (2011/12/30) |
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forcing and vertical diffusion. |
o pkg/seaice: |
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- change declaration of UVM from _RL to _RS in order to get B-grid |
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uIce,vIce monitor when _RS = real*4 |
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o pkg/offline: |
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- new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags); |
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- compute vertical velocity if not read from file (switch on exactConserv |
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& staggerTimeStep); |
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- fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq. |
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o verification: |
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- update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input) |
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with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m": |
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fix Pb in yG definition @ 2 missing corners (previously yG was averaged); |
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- update output of exp. global_ocean.cs32x15.viscA4 after changing |
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grid-file angles (used here for coriolis-3d); |
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- remove (or gzip) few files not needed to run fizhi-cs experiments. |
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o pkg/exf (vector interpolation): |
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- rotate vector component toward local grid-axis orientation using grid-angles |
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(stored in GRID.h) instead of locally computed rotation angle; keep old code |
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available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default). |
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o pkg/seaice: |
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- allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION |
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undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined. |
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o pkg/PKG_OPTIONS.h files: |
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- move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h", |
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outside of the #ifdef ALLOW_THISPKG / #endif block. |
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- update verification/*/code/PKG_OPTIONS.h files. |
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o add a verification experiment (offline_exf_seaice/input.seaice) that test |
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the B-grid LSOR solver |
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o pkg/seaice: sort out emissivity and long wave radiation step 2: |
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- add emissivity for snow and ice as new run-time parameters |
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(unfortunately) that default to the corresponding exf values; this |
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changes results in most verification experiments so that for backward |
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compatibility these parameter have to be set explicitly to inconsistent |
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values (ugly); |
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- the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired |
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emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp |
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until we agree how to handle this bug properly |
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o pkg/exf (interpolation): |
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- add a set of run-time param ({inputfield}_interpMethod), one for |
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each interpolated input field, to select the interpolation method |
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with a value of zero switching off the interpolation; |
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- print interpolation parameters to standard output; |
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- refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined |
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(to use instead runoff_interpMethod=0 in data.exf). |
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- simplify default setting of interpolation parameters (for all fields, |
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set position to match model grid cell-center position, leading to trivial |
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interpolation in case of regular Lat-Lon grid) and fix for the case of |
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non-uniform delY. |
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o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for |
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within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1. |
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this factor is absolutely required, because the lw exitance (= out-going |
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long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown, |
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where the reflectivity rho = 1-emissivity for conservation reasons. Once |
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this is established, we can remove the CPP-Flag (if we want to). |
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o pkg/seaice: |
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- qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and |
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ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined |
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- sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity |
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what the name implies (and not emissivity*BoltzmannConstant), this means |
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the old default value of 5.5e-8 now means |
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5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in |
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S/R exf_readparms |
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- FV-discretization of the B-grid LSOR solver, turn on with |
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SEAICE_LSRBNEW. This new solver also involves a slight re-organization |
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of the calling routine dynsolver, so that B and C-grid code look a |
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little more alike. |
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- fix index bugs in ostres.F (B-grid code) |
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o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better |
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o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the |
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default for SEAICE_emissivity, if useEXF; requires setting a wrong |
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parameter value in global_ocean.cs32x15/input.seaice/data.seaice for |
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backward compatiblity |
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o model/src: use sigmaR in calc_ivdc |
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checkpoint63g (2011/12/16) |
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o pkg/seaice/seaice_growth.F: |
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fix heat conservation of the coupled ocean-seaice system. |
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when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of |
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solid vs liquid water treatment is resolved via QNET. |
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o pkg/seaice/seaice_growth.F: |
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add missing term for sublimation in saltFlux, which was breaking conservation. |
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o pkg/seaice/seaice_model.F: |
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Remove this patholigical case treatment in evolution branch, |
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where it is un-necessary and breaks conservation. |
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Update global_ocean.cs32x15/results accordingly for |
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output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt |
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o model/src: |
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useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in |
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external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE. |
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o pkg/obcs: |
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modify Stevens boundary conditions so that S/R obcs_calc_stevens computes |
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tendency for temperature and salinity that is then applied to update |
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theta and salt in S/R obcs_apply_ts; this requires proper masking of all |
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horizontal advection and diffusion contributions on the boundary (in |
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S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and |
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removing the mask in S/R timestep_tracer. The advantage of this approach is |
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that the updated tracer values include contributions from the surface |
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forcing and vertical diffusion. |
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This modification changes exp4.stevens because of vertical diffusion. |
This modification changes exp4.stevens because of vertical diffusion. |
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o model/src: |
o model/src: |
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change non-curvilinear grid setting to also work with exch2 + blank tiles: |
change non-curvilinear grid setting to also work with exch2 + blank tiles: |
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- split the domain in many more tiles (9x4 tiles of 10x10 each); |
- split the domain in many more tiles (9x4 tiles of 10x10 each); |
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- switch to exch2 and remove 1 blank-tile (but only for MPI test). |
- switch to exch2 and remove 1 blank-tile (but only for MPI test). |
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- update results of both test (std & dwnslp). |
- update results of both test (std & dwnslp). |
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o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in |
o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in |
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tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation |
tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation |
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o model/src: |
o model/src: |
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- take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS |
- take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS |