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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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============================== |
============================== |
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o pkg/seaice: |
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- rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0; |
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- remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t, |
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SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz) |
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from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when |
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SEAICE_freeze got retired) but already better than previously with |
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SEAICE_freeze=123456.7 deg.C; |
| 14 |
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- move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS |
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(safer multi-threaded setting); always set SEAICEuseEVP; |
| 16 |
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- setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to |
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SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report); |
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stop if multiple specifications for the same coeff; make sure default |
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SEAICE_mcPheePiston is compatible with drF(1) & deltaT. |
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o pkg/obcs: |
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- allow to switch to upwind 1rst order advection scheme for the advective |
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flux computation at the open-boundary; disabled for adjoint built. |
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o pkg/ptracers: |
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- rename PTRACERS_RESTART.h -> PTRACERS_START.h |
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- rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F |
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- add parameter to decide when to start a tracer; use internal flag to |
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know which tracer to step-forward; switch this internal flag at the top |
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of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled |
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for adjoint built. |
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o pkg/seaice: |
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- add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ; |
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- move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ; |
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- keep experiment offline_exf_seaice truly single category (set MULTDIM=1). |
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o pkg/ecco: |
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- fix writing of output file DiagnosCost_ClimSalt/Theta |
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and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc). |
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o pkg/seaice: |
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- add missing initialisation of COR_ICE array in dynsolver.F |
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- merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is |
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compiled either way, and is tested in all exps (multidim was only tested |
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in lab_sea ad before). |
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- cosmetic change to prepare for future addition of ITD. no change to results. |
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no defaults change. |
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- added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise). |
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- by lack of adequate verification experiments, I further used custom versions |
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of global_ocean.cs32x15 to test multicat or not, with pickup or not. All |
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should be correct. |
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- avoid recomputations in ad. |
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o array initialisation in adjoint mode: |
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1) pkg/mom_common/mom_calc_ke.F: |
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add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC): |
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The S/R which calls MOM_CALC_KE initialises KE but in some recomputation |
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part this initialisation is gone, resulting in Floating Point Exception |
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(caught by open64 compiler with debug option). |
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2) model/src/convective_weights.F |
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set output convectCount over the full array range (instead of doing |
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an update): this fix a similar issue when called within recomputation (adjoint) |
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which could by-pass the initialisation (normally done in the caller S/R). |
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o pkg/seaice: |
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- final version of turbulent flux params, as agreed at MIT ice meet: |
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SEAICE_mcPheePiston (default is ~ 0.000875) |
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SEAICE_mcPheeTaper (default is 0.) |
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SEAICE_frazilFrac (defualt is 1.) |
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SEAICE_mcPheeStepFunc (default is false) |
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- changes results at trunction error level |
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- ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo |
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o added pkg/frazil: |
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- see frazil_description.tex for details |
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- verification experiment is global_with_exf/input.yearly; changes output.yearly.txt |
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o pkg/shelfice/shelfice_thermodynamics.F |
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- fix exponents for velocity dependent exchange coefficients: change |
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from 2/3(=0) to 0.66666666666666667 |
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- move computation of velocity dependent exchange coefficients into |
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separate loop, so that it applies to both thermodynamics |
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- move some divisions by constants out of loops |
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checkpoint63j (2012/02/16) |
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o pkg/seaice: |
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- overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc. |
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- SItracer: added run time params, and allow coupling to ocn salinity. |
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o pkg/seaice: remove (almost) all divisions by constants within loops |
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in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d |
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results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only |
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those, caused by 1/QI -> recip_QI) -> update output.seaice.txt, |
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output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt |
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o pkg/seaice : |
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- simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula |
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= 1 or 2, using newly added run time parameter SEAICE_availHeatTaper. |
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- fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148. |
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- add permanent SItflux diag that corresponds to TFLUX but includes |
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ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget. |
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- allow activation/testing of a fix for suspected missing term in |
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ocn-ice heat budget (to be confirmed). To test this, you want to |
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undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param |
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SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic. |
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- no change in results, fwd or ad. |
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o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below: |
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- switch to variable freezing point. |
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Results change : cg2d -> 1 digits; ad -> 3-6-6 digits. |
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- bug fix : the sublimation term that was missing is now activated. |
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Results change : cg2d -> 2 digits; ad -> 8-6-6 digits. |
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- bug fix : flooding sign term for SIsal0.NE.0. |
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Result change : cg2d -> 8 digits; ad -> 11-12-9 digits. |
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o pkg/seaice: |
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- unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT |
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is now the default, and the old default constant freezing point is recovered |
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with SEAICE_tempFrz0 = -1.96, |
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SEAICE_dTempFrz_dS = 0., |
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- retire SEAICE_freeze (= the old way of specifycing the constant freezing point) |
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- remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there. |
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- bug fix (thanks to M. Losch) : the sublimation term that was missing is now |
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activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM. |
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- bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211) |
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was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail). |
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- bug fix (thanks to O. Jahn) : area loss for melting got messed up in |
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seaice_growth r149 for legacy branch (no results change). |
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- introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code |
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from I. Fenty). |
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- results did not change except for global_ocean.cs32x15, mostly due to the |
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switch to variable freezing point (see above item for detail). |
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o pkg/thsice: |
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- fix and simplify interface to salt_plume pkg ; diagnose directly amount of |
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seawater freezing in thsice_calc_thickn (not used). |
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o pkg/seaice: turbulent flux term specification via run time params. |
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- replace CPP switches with run time switches to facilitate testing |
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- retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX, |
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GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR |
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- added runtime parameter : SEAICEturbFluxFormula |
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- move Mcphee constants to SEAICE_PARAMS.h |
| 130 |
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- seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula; |
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SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply); |
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remove seaice_summary call (moved to seaice_init_fixed) |
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- seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on |
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SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms) |
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- seaice_summary.F : add missing report of read turbulent flux term set up |
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and SITRACER. |
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- seaice_check.F : check range; inform and stop if retired CPPs are used |
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(incl. SEAICE_AGE). |
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- seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without |
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CPP switch, same computation as before for the different options. |
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- change results at the truncation level. |
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o pkg/seaice: |
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- remove un-used parameters LAD & MAX_TICE ; add new run-time parameters: |
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useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and |
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SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY. |
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- update verification/*/input*/data.seaice: |
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to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY |
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code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ; |
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and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code, |
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set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0. |
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o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY): |
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- remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same |
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algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0); |
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difference in results only due to machine truncation. |
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- remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using |
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MaykutPolySatVap; keep MIN_LWDOWN. |
| 157 |
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- adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation. |
| 158 |
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- update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87, |
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+ 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits). |
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o pkg/salt_plume: |
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- isolate saltPlumeFlux array exch into a specific S/R called from |
| 162 |
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do_oceanic_phys.F |
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- add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice. |
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o verification: |
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- move untested set-up to MITgcm_contrib/verification_other. |
| 166 |
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o pkg/seaice: |
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- retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER. |
| 168 |
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o pkg/seaice: |
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- seaice_solve4temp.F (keeping results unchanged): |
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* add 2 future run-time params to select which saturation vapor pressure |
| 171 |
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formula is used and how post-iteration fluxes are set. |
| 172 |
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Temporary set these 2 params according to option SOLVE4TEMP_LEGACY; |
| 173 |
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* New piece of code (not used) to update surf. atmos. heat flux F_ia using |
| 174 |
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the linearized expression to stay consistent with tsurf finding. |
| 175 |
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- seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x |
| 176 |
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can be < 0. |
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o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef): |
| 178 |
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- remove from F_ia (and from it's derivative dFiDTs1) the contribution of |
| 179 |
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conductive heat flux F_c , and add it explicitly when updating tsurf as |
| 180 |
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solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf |
| 181 |
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so that now F_ia has a consistent meaning through the entire routine. |
| 182 |
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This causes differences at truncation level: update output of fwd exp. |
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global_ocean.cs32x15.seaice. |
| 184 |
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o pkg/seaice: |
| 185 |
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- lots of editing/cleaning in seaice_solve4temp.F + better documentation |
| 186 |
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of arrays, sign/direction of fluxes; no effect on results. |
| 187 |
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- replace hard coded 273.16 (=previous value of celsius2K) by celsius2K |
| 188 |
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in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part); |
| 189 |
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note: this should have been done before changing celsius2K default. |
| 190 |
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- to keep results unchanged, add back old value of celsius2K in verification |
| 191 |
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exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs |
| 192 |
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- replace hard coded seawater freezing temp in seaice_solve4temp.F (part |
| 193 |
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SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default |
| 194 |
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value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater |
| 195 |
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freezing temp is consistent with value in seaice_growth.F ; this causes |
| 196 |
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differences at machine truncation level: update lab_sea AD output (3/4). |
| 197 |
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o pkg/seaice: |
| 198 |
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- mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask |
| 199 |
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and climsst/sss even when using seaice (to prevent calculation that might |
| 200 |
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use SST on land); does not affect any verification exp. |
| 201 |
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- apply mask to taux,tauy (in seaice_get_dynforcing.F); update output |
| 202 |
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of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix. |
| 203 |
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o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness |
| 204 |
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over land (non-legacy code) |
| 205 |
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o vectorize salt_plume package: |
| 206 |
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- add extra code to salt_plume_frac and salt_plume_tendency_apply_s |
| 207 |
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- this code computes plumebk everywhere (also over land), thus requires |
| 208 |
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code to avoid divisions by zero and catch the case of kLev=Nr. |
| 209 |
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- efficiency of salt_plume_frac is still sub-optimal |
| 210 |
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o tools (genmake2): |
| 211 |
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- fix makefile NAME specification (option: -makefile NAME) by adding |
| 212 |
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"-f $MAKEFILE" in few places where it was missing including makedepend |
| 213 |
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command (contribution from Paul). |
| 214 |
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|
| 215 |
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checkpoint63i (2012/01/24) |
| 216 |
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o model/src: |
| 217 |
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- add factorized versions of some EOS code to find_rho.F, |
| 218 |
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define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX) |
| 219 |
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o model/src: |
| 220 |
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- add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h; |
| 221 |
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- change default celsius2K from 273.16 to 273.15 |
| 222 |
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- to keep results unchanged, add back old value of celsius2K in verification |
| 223 |
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exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd), |
| 224 |
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global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm). |
| 225 |
o model/src: add a little initialisation trick to find_rho.F and find_alpha.F |
o model/src: add a little initialisation trick to find_rho.F and find_alpha.F |
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to make TAF generate vectorizable code |
to make TAF generate vectorizable code |
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o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows. |
o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows. |
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