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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 external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water |
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tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged. |
| 9 |
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o define mass2rUnit & rUnit2mass as units conversion factor, used for surface |
| 10 |
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forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit |
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(z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse; |
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and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error |
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of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16 |
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-> update output.txt |
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o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME): |
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this affects truncation error: -> update output.txt of exp: |
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global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr, |
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ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon. |
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checkpoint59f |
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o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode) |
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o pkg/ctrl: ctrl_bound forces parameter corrections to stay in |
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a bounded range (in forward mode) |
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o pkg/ecco, ctrl, autodiff and mom_common: |
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internal parameter controls, completements of implementations |
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o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy. |
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o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ; |
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(not seem any difference in testing results). |
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o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains |
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at face corners. |
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o pkg/generic_advdiff: |
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- in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR) |
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loop range indices for computing vertical advection tendency |
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and do the calculation in the interior only (no overlap) ; |
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for now, only implemented for SOM advection (to save CPU time). |
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- add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment) |
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o exch2 adjoint |
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First set of changes: |
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- add exch2 hand-written adjoint templates |
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- exch2 hand-written no longer use TAF-flag 'nownew_arg' |
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This will require cleanup in pkg/autodiff/*.F |
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(changed routines currently kept separate in verif. code/) |
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- Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC |
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that used to hide exch2 or cubed-sphere specific code |
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(commented via 'cph-exch2') |
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o pkg/seaice |
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- Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE. |
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o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update |
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output of global_ocean.cs32x15.thsice . |
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checkpoint59e |
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o exch2: new S/R that only use the cube-tracer (center-position) exchange: |
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for B-grid vector (not yet tested) and C-grid vector (<- only used |
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when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined). |
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o starting implementation of Duffy et al. (GRL 1999) salt plume scheme |
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(#ifdef ALLOW_SALT_PLUME) |
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o gather_2d/scatter_2d: removed halo regions |
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o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007 |
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scheme and the corresponding test case (under front_relax dir). For now, |
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only available with Skew-flux form and not yet tested in realistic set-up. |
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adjoint: store directives updated, but gradient checks deteriorated, |
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so maybe GM/Redi adjoint is now broken. |
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o seaice adjoint |
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* add AREA, HEFF, HSNOW as control variable |
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(should not change lab_sea results) |
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* CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40 |
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o pkg/seaice: |
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* added computation of saltFlux in seaice_growth; |
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For time being, sea ice salinity is assumed constant |
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contribution of snow flooding to freshening of sea ice is neglected. |
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SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it |
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defaults to 0.0 in order to maintain backward compatibility. |
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Typical values for SEAICE_salinity are 4 to 10 g/kg. |
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* replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F |
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* added SEAICE_availHeatFrac, which specifies fraction of surface level |
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heat content used to melt or grow ice |
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* commented out cap of HICE: it helps keep ice thinner |
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* reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option |
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* applied OBCS T/S mask to HEFFM sea ice mask |
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checkpoint59d |
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o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array |
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for {PKG} state variables, and called from DO_STATEVARS_DIAGS. |
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(keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics) |
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o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0" |
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and change default value of parameter "GM_Small_Number"; |
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update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15, |
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global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf, |
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tutorial_global_oce_biogeo, tutorial_global_oce_latlon |
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o pkg/ecco: cost function when applying pkg/smooth to controls |
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o pkg/ctrl: add forcingPrecond run time parameter |
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o pkg/seaice: |
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- replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code |
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- fix bug in metric terms of u-equation in LSR solver (implicit part), |
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changes verification/lab_sea |
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- rearrange implicit part of u-equation in LSR solver to make it easier to |
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read, understand, and debug. This causes changes at the truncation level. |
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- fix (serious) bug in the boundary conditions (sign error in the implicit |
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part) of the LSR solver. Changes all LSR results. |
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- fixed problem with HSNOW initialization to avoid thick snow when AREA |
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is initilized with small values - does not change lab_sea results. |
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- added HsnowFile initialization capability |
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o pkg/smooth: addition to model/src and pkg/ctrl so allow |
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initialization of pkg/smooth and application to control vector |
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o pkg/seaice: fix another bug in the LSR no-slip boundary conditons |
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o dependencies: pkg/profiles requires pkg/cal |
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o pkg/profiles: |
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- added option ALLOW_PROFILES_GENERICGRID |
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-> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming |
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that interpolation information (grid points and coefficients) is provided |
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within the netcdf input files. |
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-> sample matlab scripts can be found in MITgcm_contrib/gael |
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that allow you to prepare netcdf input files. |
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- also modified: cleaner include statements, cleaner error print statements, |
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cleaner stops when error, and more tests of the netcdf input files consistency. |
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o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs. |
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o pkg/seaice: |
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- move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this |
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requires a new routine: seaice_diagnostics_fill.F |
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- make sure that seaice does not move if not forced (pressure replacement |
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method, Hibler and Ip, 1995), changes results |
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- and new damping criterion for EVP solver according to Hunke, JCP, 2001 |
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- SEAICE_evpDampC = > 0. turns it on (615. is the recommended value). |
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It is turned off by default (=-1.), because it changes the results. |
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- make it possible to read AREA from a file, too. |
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checkpoint59c |
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o add S/R and diagnostics for oceanic mixed-layer depth |
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o move GMRedi call after all vertical mixing schemes (including KPP) |
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o pkg/thsice: |
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- ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs |
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(melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice |
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o pkg/obcs: |
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- bug fix for balance code |
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o pkg/seaice: |
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- allow values of SEAICE_elasticParm > 1 |
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- add new parameter SEAICE_evpTauRelax as an alternative |
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to SEAICE_elasticParm |
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- make lsr boundary conditions free slip (by default), changes result |
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- add code for no slip boundary conditions for lsr |
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- set minimum of zeta to zero (and not 4e8) (changes results) |
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- add a cap on AREA after advecting AREA if seaice_growth is not called |
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o change calculation of Visbeck K: |
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- no longer depend on tapering scheme; instead, compute slope (limited |
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by GM_maxSlope). this is equivalent to what was comuted before with |
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clipping or linear tappering. |
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- fix vertical averaging (wrong by 1/2 level) |
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- leave the old version (but will not be maintained) within |
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#ifdef OLD_VISBECK_CALC / #endif |
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- update output of exp. ideal_2D_oce |
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o change error catch in calc_r_star to improve vectorization |
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o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and |
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add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf). |
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o adjoint: |
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Re-organized adjoint checkpointing according to Matt Mazloff |
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(but with modifs/completions/cleanups) |
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Storing is now bundled into large arrays to optimized I/O |
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(and second step in cleanup of the_main_loop) |
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checkpoint59b |
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o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d): |
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- export/import (between ocean & coupler) fields needed for ocean DIC. |
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o pkg/seaice: |
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- get rid of three more exchanges seaice_calc_viscosities (required |
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different loop boundaries in seaice_lsr and seaice_ocean_stress) |
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- bug fix in seaice_ocean_stress (update of lab_sea required) |
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- reduce loop boundaries to necessary minimum also in seaice_evp |
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- go back to the old way of computing deltaC/Z as the adjoint likes that |
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better |
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o Refresh of tutorial_global_oce_latlon (includes changing salinity-like |
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passive tracer to an Age Tracer) + update output.txt |
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o pkg/exf: |
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- implement A-grid / C-grid selection for wind-stress input files. |
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- clean-up exf_wind.F (remove us, use wspeed instead ; add wStress) |
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for now, in exf_bulk_largeyeager04.F only : |
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- change implementation for case where windspeed + 2. components wind-stress |
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are read-in. AND use rhoConstFresh to convert evap. |
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o pkg/seaice: |
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- use correct EXCH_UV for wind-forcing (on A-grid). |
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- change SEAICE_OPTIONS.h to limit the number of option combinations (regarding |
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SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops. |
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o pkg/exf: |
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- default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC) |
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EXF_INTERPOLATION: |
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- merge global_with_exf/code version of exf_interp_read.F |
| 186 |
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to the main code ; |
| 187 |
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- Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when |
| 188 |
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reading the file ; Important: This options needs to be defined to recover |
| 189 |
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previous code. |
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otherwise, use fixed size array to read in (size=exf_interp_bufferSize). |
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- no longer loose real*8 precision along the way when using exf_iprec=64. |
| 192 |
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o pkg/seaice: rearrangement of common blocks (really needs more cleaning up) |
| 193 |
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- change discretisation of evp-solver in order to avoid another exchange |
| 194 |
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(changes lab_sea) and clean up a little |
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- replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS) |
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help the adjoint (this also changes the results slightly) |
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- add a few "_d 0" where they had been missing in seaice_evp.F |
| 198 |
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- cleaning up: remove unused seaice_calc_rhs.F |
| 199 |
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o pkg/exf: some cleaning-up: |
| 200 |
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- change various "constants" into runtime parameters |
| 201 |
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- cleaned-up Large&Yeager04 routine which should eventually |
| 202 |
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replace exf_bulkformulae.F (changed names of S/R and CPP) |
| 203 |
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and merged various ALLOW_ATM_WIND options |
| 204 |
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only used with thsice pkg (in thsice_get_exf.F): |
| 205 |
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- implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04) |
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which are used when useStabilityFct_overIce=TRUE (= the default) |
| 207 |
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- change default values of ice & snow emissivity and scale downward LW |
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by ice & snow emissivity. |
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o pkg/thsice: |
| 210 |
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fix few little problems, in thsice_calc_thickn.F: |
| 211 |
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- growth vertically (and not laterally) if iceFrac == iceMaskMax |
| 212 |
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- melt only laterally if hIce < hThinIce (as the comments say) |
| 213 |
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and in thsice_extend.F: |
| 214 |
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- allow to form ice even when iceFrac == iceMaskMax (by increasing thickness) |
| 215 |
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- start to form ice as soon as the minimum ice-volume is reachable. |
| 216 |
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update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice), |
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and cpl_aim+ocn |
| 218 |
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o pkg/kpp |
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- move computation of surface related input fields to KPP into a new |
| 220 |
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subroutine kpp_forcing_surf.F |
| 221 |
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- remove wrong (within bi,bj loops) EXCH calls. |
| 222 |
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- little cleaning (add argument myThid in last position, cvs header ...) |
| 223 |
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- for now, fix conservation problem by exchanging KPPviscAz (may not |
| 224 |
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be the best fix) |
| 225 |
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o pkg/seaice |
| 226 |
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- check for inconsistent evp parameter/cpp-flag combination |
| 227 |
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- remove leftover errIO flat for obsolete name list error handling |
| 228 |
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o OpenAD |
| 229 |
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- changed verification/OpenAD to full baroclinic setup (including GM/Redi) |
| 230 |
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|
| 231 |
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checkpoint59a |
| 232 |
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o pkg/seaice: some parameter clarifications and a little bit of clean up |
| 233 |
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o pkg/thsice: rename run-time parameters: |
| 234 |
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himin -> hIceMin |
| 235 |
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himin0 -> hThinIce |
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hihig -> hThickIce |
| 237 |
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i0 -> i0swFrac |
| 238 |
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transCoef -> bMeltCoef |
| 239 |
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frac_energy -> fracMelting |
| 240 |
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add new parameters: hNewIceMax, fracFreezing, dhSnowLin |
| 241 |
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with default values (for now) that do not change the results. |
| 242 |
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remove old version of thsice vars advection in pkg/seaice. |
| 243 |
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o in FFIELDS.h: |
| 244 |
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- replace #ifndef ALLOW_EXF by #ifndef EXCLUDE_FFIELDS_LOAD |
| 245 |
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- make pLoad & sIceLoad always available (but still only used if |
| 246 |
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ATMOSPHERIC_LOADING is #define). |
| 247 |
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o pkg/kpp: replaced _KPP_RL with _RL |
| 248 |
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o bug fixes for vertical diffusivity computations when both KPP and |
| 249 |
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3D diffusivity arrays are used. |
| 250 |
o pkg/seaice: fix bug in evp solver, while doing that |
o pkg/seaice: fix bug in evp solver, while doing that |
| 251 |
- change (improve?) discretization of stress computations for both |
- change (improve?) discretization of stress computations for both |
| 252 |
cgrid-lsr and evp solver |
cgrid-lsr and evp solver |
| 258 |
- retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp |
- retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp |
| 259 |
(to force the user to pick a time step since there is not "safe" way |
(to force the user to pick a time step since there is not "safe" way |
| 260 |
of choosing it) |
of choosing it) |
| 261 |
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- add principal stress diagnostics |
| 262 |
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- rearrange fields for evp a little to avoid having to call a: too many |
| 263 |
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exchanges and b: exchanges for stress trensor components which we do |
| 264 |
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not have. |
| 265 |
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- modify Hibler+Bryan (1987) stress coupling so that it reuses information |
| 266 |
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of evp, complete rewrite for lsr case (latter is does not yet work |
| 267 |
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in all cases) |
| 268 |
o pkg/kpp: add code to have mixing in shelf ice caverns |
o pkg/kpp: add code to have mixing in shelf ice caverns |
| 269 |
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- add myThid to all kpp routines (long overdue) |
| 270 |
|
|
| 271 |
checkpoint59 |
checkpoint59 |
| 272 |
o pkg/exf: |
o pkg/exf: |
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