--- MITgcm/doc/tag-index 2007/01/11 00:29:41 1.764 +++ MITgcm/doc/tag-index 2007/08/31 14:06:57 1.867 @@ -1,9 +1,378 @@ -$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.764 2007/01/11 00:29:41 jmc Exp $ +$Header: /home/ubuntu/mnt/e9_copy/MITgcm/doc/tag-index,v 1.867 2007/08/31 14:06:57 mlosch Exp $ $Name: $ Notes on tags used in MITgcmUV ============================== +o pkg/seaice: change a discretization detail to make the B-grid code + "more symmetric". This change is likely to remove all "ridges/leads" that + where quasi-aligned with the grid in B-grid solutions. It may also be + the solution to the stress coupling issues with the B-grid. +o each tested exp: add a "run" directory with a standard ".cvsignore" file ; + remove .cvsignore from input dir. (since testreport no longer run here). +o pkg/thsice: + - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h" + - fix reshaping of sea-ice just after advection: + melt all the ice only if ice-volume is too small. + - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007): + prevent lateral melting if sea-ice fraction is too close to iceMaskMin ; + and update experiment global_ocean.cs32x15.icedyn (+start from pickup files). +o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water + tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged. +o define mass2rUnit & rUnit2mass as units conversion factor, used for surface + forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit + (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse; + and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error + of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16 + -> update output.txt +o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME): + this affects truncation error: -> update output.txt of exp: + global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr, + ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon. + +checkpoint59f +o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode) +o pkg/ctrl: ctrl_bound forces parameter corrections to stay in + a bounded range (in forward mode) +o pkg/ecco, ctrl, autodiff and mom_common: + internal parameter controls, completements of implementations +o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy. +o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ; + (not seem any difference in testing results). +o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains + at face corners. +o pkg/generic_advdiff: + - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR) + loop range indices for computing vertical advection tendency + and do the calculation in the interior only (no overlap) ; + for now, only implemented for SOM advection (to save CPU time). + - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment) +o exch2 adjoint + First set of changes: + - add exch2 hand-written adjoint templates + - exch2 hand-written no longer use TAF-flag 'nownew_arg' + This will require cleanup in pkg/autodiff/*.F + (changed routines currently kept separate in verif. code/) + - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC + that used to hide exch2 or cubed-sphere specific code + (commented via 'cph-exch2') +o pkg/seaice + - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE. +o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update + output of global_ocean.cs32x15.thsice . + +checkpoint59e +o exch2: new S/R that only use the cube-tracer (center-position) exchange: + for B-grid vector (not yet tested) and C-grid vector (<- only used + when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined). +o starting implementation of Duffy et al. (GRL 1999) salt plume scheme + (#ifdef ALLOW_SALT_PLUME) +o gather_2d/scatter_2d: removed halo regions +o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007 + scheme and the corresponding test case (under front_relax dir). For now, + only available with Skew-flux form and not yet tested in realistic set-up. + adjoint: store directives updated, but gradient checks deteriorated, + so maybe GM/Redi adjoint is now broken. +o seaice adjoint + * add AREA, HEFF, HSNOW as control variable + (should not change lab_sea results) + * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40 +o pkg/seaice: + * added computation of saltFlux in seaice_growth; + For time being, sea ice salinity is assumed constant + contribution of snow flooding to freshening of sea ice is neglected. + SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it + defaults to 0.0 in order to maintain backward compatibility. + Typical values for SEAICE_salinity are 4 to 10 g/kg. + * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F + * added SEAICE_availHeatFrac, which specifies fraction of surface level + heat content used to melt or grow ice + * commented out cap of HICE: it helps keep ice thinner + * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option + * applied OBCS T/S mask to HEFFM sea ice mask + +checkpoint59d +o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array + for {PKG} state variables, and called from DO_STATEVARS_DIAGS. + (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics) +o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0" + and change default value of parameter "GM_Small_Number"; + update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15, + global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf, + tutorial_global_oce_biogeo, tutorial_global_oce_latlon +o pkg/ecco: cost function when applying pkg/smooth to controls +o pkg/ctrl: add forcingPrecond run time parameter +o pkg/seaice: + - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code + - fix bug in metric terms of u-equation in LSR solver (implicit part), + changes verification/lab_sea + - rearrange implicit part of u-equation in LSR solver to make it easier to + read, understand, and debug. This causes changes at the truncation level. + - fix (serious) bug in the boundary conditions (sign error in the implicit + part) of the LSR solver. Changes all LSR results. + - fixed problem with HSNOW initialization to avoid thick snow when AREA + is initilized with small values - does not change lab_sea results. + - added HsnowFile initialization capability +o pkg/smooth: addition to model/src and pkg/ctrl so allow + initialization of pkg/smooth and application to control vector +o pkg/seaice: fix another bug in the LSR no-slip boundary conditons +o dependencies: pkg/profiles requires pkg/cal +o pkg/profiles: + - added option ALLOW_PROFILES_GENERICGRID + -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming + that interpolation information (grid points and coefficients) is provided + within the netcdf input files. + -> sample matlab scripts can be found in MITgcm_contrib/gael + that allow you to prepare netcdf input files. + - also modified: cleaner include statements, cleaner error print statements, + cleaner stops when error, and more tests of the netcdf input files consistency. +o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs. +o pkg/seaice: + - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this + requires a new routine: seaice_diagnostics_fill.F + - make sure that seaice does not move if not forced (pressure replacement + method, Hibler and Ip, 1995), changes results + - and new damping criterion for EVP solver according to Hunke, JCP, 2001 + - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value). + It is turned off by default (=-1.), because it changes the results. + - make it possible to read AREA from a file, too. + +checkpoint59c +o add S/R and diagnostics for oceanic mixed-layer depth +o move GMRedi call after all vertical mixing schemes (including KPP) +o pkg/thsice: + - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs + (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice +o pkg/obcs: + - bug fix for balance code +o pkg/seaice: + - allow values of SEAICE_elasticParm > 1 + - add new parameter SEAICE_evpTauRelax as an alternative + to SEAICE_elasticParm + - make lsr boundary conditions free slip (by default), changes result + - add code for no slip boundary conditions for lsr + - set minimum of zeta to zero (and not 4e8) (changes results) + - add a cap on AREA after advecting AREA if seaice_growth is not called +o change calculation of Visbeck K: + - no longer depend on tapering scheme; instead, compute slope (limited + by GM_maxSlope). this is equivalent to what was comuted before with + clipping or linear tappering. + - fix vertical averaging (wrong by 1/2 level) + - leave the old version (but will not be maintained) within + #ifdef OLD_VISBECK_CALC / #endif + - update output of exp. ideal_2D_oce +o change error catch in calc_r_star to improve vectorization +o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and + add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf). +o adjoint: + Re-organized adjoint checkpointing according to Matt Mazloff + (but with modifs/completions/cleanups) + Storing is now bundled into large arrays to optimized I/O + (and second step in cleanup of the_main_loop) + +checkpoint59b +o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d): + - export/import (between ocean & coupler) fields needed for ocean DIC. +o pkg/seaice: + - get rid of three more exchanges seaice_calc_viscosities (required + different loop boundaries in seaice_lsr and seaice_ocean_stress) + - bug fix in seaice_ocean_stress (update of lab_sea required) + - reduce loop boundaries to necessary minimum also in seaice_evp + - go back to the old way of computing deltaC/Z as the adjoint likes that + better +o Refresh of tutorial_global_oce_latlon (includes changing salinity-like + passive tracer to an Age Tracer) + update output.txt +o pkg/exf: + - implement A-grid / C-grid selection for wind-stress input files. + - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress) + for now, in exf_bulk_largeyeager04.F only : + - change implementation for case where windspeed + 2. components wind-stress + are read-in. AND use rhoConstFresh to convert evap. +o pkg/seaice: + - use correct EXCH_UV for wind-forcing (on A-grid). + - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding + SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops. +o pkg/exf: + - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC) + EXF_INTERPOLATION: + - merge global_with_exf/code version of exf_interp_read.F + to the main code ; + - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when + reading the file ; Important: This options needs to be defined to recover + previous code. + otherwise, use fixed size array to read in (size=exf_interp_bufferSize). + - no longer loose real*8 precision along the way when using exf_iprec=64. +o pkg/seaice: rearrangement of common blocks (really needs more cleaning up) + - change discretisation of evp-solver in order to avoid another exchange + (changes lab_sea) and clean up a little + - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS) + help the adjoint (this also changes the results slightly) + - add a few "_d 0" where they had been missing in seaice_evp.F + - cleaning up: remove unused seaice_calc_rhs.F +o pkg/exf: some cleaning-up: + - change various "constants" into runtime parameters + - cleaned-up Large&Yeager04 routine which should eventually + replace exf_bulkformulae.F (changed names of S/R and CPP) + and merged various ALLOW_ATM_WIND options + only used with thsice pkg (in thsice_get_exf.F): + - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04) + which are used when useStabilityFct_overIce=TRUE (= the default) + - change default values of ice & snow emissivity and scale downward LW + by ice & snow emissivity. +o pkg/thsice: + fix few little problems, in thsice_calc_thickn.F: + - growth vertically (and not laterally) if iceFrac == iceMaskMax + - melt only laterally if hIce < hThinIce (as the comments say) + and in thsice_extend.F: + - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness) + - start to form ice as soon as the minimum ice-volume is reachable. + update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice), + and cpl_aim+ocn +o pkg/kpp + - move computation of surface related input fields to KPP into a new + subroutine kpp_forcing_surf.F + - remove wrong (within bi,bj loops) EXCH calls. + - little cleaning (add argument myThid in last position, cvs header ...) + - for now, fix conservation problem by exchanging KPPviscAz (may not + be the best fix) +o pkg/seaice + - check for inconsistent evp parameter/cpp-flag combination + - remove leftover errIO flat for obsolete name list error handling +o OpenAD + - changed verification/OpenAD to full baroclinic setup (including GM/Redi) + +checkpoint59a +o pkg/seaice: some parameter clarifications and a little bit of clean up +o pkg/thsice: rename run-time parameters: + himin -> hIceMin + himin0 -> hThinIce + hihig -> hThickIce + i0 -> i0swFrac + transCoef -> bMeltCoef + frac_energy -> fracMelting + add new parameters: hNewIceMax, fracFreezing, dhSnowLin + with default values (for now) that do not change the results. + remove old version of thsice vars advection in pkg/seaice. +o in FFIELDS.h: + - replace #ifndef ALLOW_EXF by #ifndef EXCLUDE_FFIELDS_LOAD + - make pLoad & sIceLoad always available (but still only used if + ATMOSPHERIC_LOADING is #define). +o pkg/kpp: replaced _KPP_RL with _RL +o bug fixes for vertical diffusivity computations when both KPP and + 3D diffusivity arrays are used. +o pkg/seaice: fix bug in evp solver, while doing that + - change (improve?) discretization of stress computations for both + cgrid-lsr and evp solver + - add a new routine to compute strain rates + - the above changes lab_sea results + - add no slip conditions for evp solver (off by default), lsr-version + may follow + - fix exchange for shear at Z-points (does not change lab_sea) + - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp + (to force the user to pick a time step since there is not "safe" way + of choosing it) + - add principal stress diagnostics + - rearrange fields for evp a little to avoid having to call a: too many + exchanges and b: exchanges for stress trensor components which we do + not have. + - modify Hibler+Bryan (1987) stress coupling so that it reuses information + of evp, complete rewrite for lsr case (latter is does not yet work + in all cases) +o pkg/kpp: add code to have mixing in shelf ice caverns + - add myThid to all kpp routines (long overdue) + +checkpoint59 +o pkg/exf: + - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND & + ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid + - move exf header files from lower_case.h to UPPER_CASE.h ; + add missing cvs Header & Name + - add adjoint routines and flow dirs for newly used exch_uv_agrid routines + - add namelist param. selectStressGridPosition, exf_monFreq + - retire many _CLIM routines, and remove data.exf_clim + + params moved to data.exf + + climsst, climsss now handled by exf_set_gen, i.e. + climss?period=0 refers to constant field, + climss?period=-12 to monthly forcing + - split up namelists in data.exf +o pkg/seaice: + - remove seaice_exch and seaice_exch_uv + - remove superfluous exchange of theta + - add myThid to seaice_budget_ocean/ice + - add new interface for atmospheric wind forcing (C-grid only) + + new routine + + two new field (taux, tauy for stress over ice) + + removed one global field (DAIRN) for C-grid case only +o pkg/thsise + - 2nd set of modifs for thsice adjoint in conjunction with exf +o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.) + +checkpoint58y_post +o Added capability for latitudinal dependence of Bryan and Lewis, 1979 + vertical diffusivity, similar to that in MOM4; turned on using + #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using + diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file. +o Added capability for 3D specification of background vertical diffusion + coefficient. This is done by (i) #define ALLOW_3D_DIFFKR + in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime + "data" file that contains the 3D vertical diffusivity coefficients. +o ice dynamics (pkg/seaice) with thsice thermodynamics: + - add code within pkg thsice to advect & diffuse sea-ice fields + similar to (and will replace) what has been added in seaice_advdiff.F, + but: - conserving Mass, Heat & Salt. + - better when using non-linear advection scheme (not yet fully tested) + - can also be used in atmospheric set-up (for now, only the diffusion). + +checkpoint58x_post +o IO option for global-file compact format: + - add options when generating topology (utils/exch2/matlab-topology-generator) + - add I/O capability (pkg/mdsio). + - adapt utils/matlab/rdmds.m to read this format. + for now long-line format not yet supported by pkg/mdsio (& exch2). +o shelfice: add a few diagnostics + +checkpoint58w_post +o p-coord. non-hydrostatic using reference profile for w <-> omega conversion: + rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref + (and replace horiVertRatio in NH code). + Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !) + and tutorial_plume_on_slope (sensitive to truncation) +o seaice: if ALLOW_ATM_WIND is undefined use wind stress + directly to drive seaice model (C-grid only) +o exf: when input wind-stress (#undef ALLOW_ATM_WIND): + - reintroduce computation of wind from stress, + - compute tau (in exf_bulkformulae.F) from windstress averaged to + mass points to avoid tau = 0 + - fix serious bug: (1/3) in Fortran is not the same as (1./3.) +o rdmnc.m: make it work with "global" files created with gluemnc +o rdmnc.m : some improvements in dealing with singleton dimension + (tested on all testreport mnc output files). +o genmake2: disable pkg/profiles if netcdf test fails. +o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output. +o move call to cal_readparms up to make calendar parameters/variable available + to all packages + +checkpoint58v_post +o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get + useDynP_inEos_Zc tested. +o pkg/exf: changes to properly interpolate/mask/scale initial fields +o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields + and portions thereof. See read_cs.txt for description and examples. +o utils/matlab/cs_grid/bk_line: to compute transport through passages, + add a script (grt_circ_bkl.m) to generate broken-line between 2 points, + following the great-circle arc between those 2 points. +o trap un-initialized variable with pathscale compiler on weddell.mit.edu + (thanks to Constantinos): fix few problems and get (almost) all exp to pass. +o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in + - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h) + - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81) + - still needs work (not working with some options ; efficiency to improve) + and serious testing. + - use this scheme for temperature & salinity in 2 advection test exp.: + advect_xy & advect_xz, respectively. + +checkpoint58u_post +o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels. o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA. o testreport: add option "-skipdir" to skip some test. o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent