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revision 1.800 by mlosch, Tue Apr 24 11:24:37 2007 UTC revision 1.976 by mlosch, Mon Apr 21 11:37:38 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: add os7mp as an advection scheme
8                  add check for advection schemes
9    o pkg/my82: add netcdf-support and diagnostics
10    o thsice pkg:
11      - Now hsMax limits snow heitght by turning it into ice following
12        flooding scheme (and now conserving energy)
13      - Slight rewriting of the formula in thsice_calc_thick.F
14      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
15        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
16    
17    checkpoint59p
18    o gchem / dic / cfc :
19      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
20      - add new parameter files: "data.dic" & "data.cfc" ;
21      - various re-arrangement in initialisation & header file ;
22      - fix tutorial_global_oce_biogeo for multi-threaded test.
23    o pkg/dic: test for "pickup_dic" file when restarting ;
24      if no pickup-file, can restart with a re-initialised pH (same as it did
25      before) providing pickupStrictlyMatch is set to False.
26    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
27      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
28    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
29      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
30    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
31     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
32       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
33    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
34       scheme to use for vorticty-term ;
35     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
36       (with default selectVortScheme, return to original discretisation)
37     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
38    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
39    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
40      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
41      also fix diagnostics VISCAHW & VISCA4W.
42    
43    checkpoint59o
44    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
45    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
46      move a few statemens out the main loop into separate loops
47    o pkg/shelfice:
48      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
49        (kg/m^2/s), does not break tests, because in verification/isomip,
50        rhoConstFresh=rhoConst (by accident)
51      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
52      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
53        new file model/src/seawater.F, so that they are available for all pkgs.
54      - convert potential temperature into in-situ temperature. This changes the
55        isomip tests => update tests
56    o add a flag writePickupAtEnd (default=true) to be able to suppress
57      writing a pickup at the last timestep
58    o tools/mpack-1.6 :
59      - disable automake (not working) and autoconf (not needed).
60      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
61        also cleaner with much less compilation warnings.
62    o pkg/profiles:
63      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
64      (for "less than 32 characters name" compiler requirement)
65    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
66      conditions that have a different sampling frequency than S/T/U/V obcs
67    o pkg/diagnostics (stats-diags):
68      - fix global Min/Max in case 1 processor get only empty tiles
69    o genmake2: replace (4 times)
70         make genmake_tc_1.o >> genmake_warnings 2>&1
71      with
72         COMM="$CC $CFLAGS -c genmake_tc_1.c"
73         echo $COMM >> genmake_warnings
74         $COMM >> genmake_warnings 2>&1
75      to make genmake2 always see the value of CC as specified in the optfile.
76    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
77      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
78      - modify verification advect_cs test to test SOM-advection on CS-grid.
79    o pkg/ctrl:
80      - Rewrite of ctrl_map_ini_ecco.F,
81        introducing a generic routine (ctrl_map_ini_gen.F).
82      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
83    
84    checkpoint59n
85    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
86      number in dedicate array "hdiag":
87      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
88        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
89      - many small changes (integer format) for large number of diagnostics
90      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
91        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
92    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
93      usingSphericalGrid, this allows to define the rotated grid coordinates
94      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
95      geographical coordinates according to the inverse of the rotation defined
96      by the Euler angles, so that Coriolis parameter and online-interpolation by
97      exf works with the geographical coordinates on XC/YC/XG/YG.
98      Naturally, this feature does not work with all packages, so some
99      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
100      profiles), because there the coordinates are assumed to be regular
101      spherical grid coordinates.
102    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
103      - introduce isopycnal diffusion coefficient control.
104    o tools/adjoint_options:
105      - additional control vector components.
106    o pkg/mnc: have mnc create marginally meaning full coordinate variables
107      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
108    o pkg/mypackage:
109      - add example of read/write pickup for state-var ;
110      - add entry points to the main code for state-vars diags & write-pickup.
111    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
112      transitions for useExfYearlyFields
113      - add new subroutine that determines the file to read from for
114        use*YearlyFields = .TRUE. and .FALSE.
115      - add a verification experiment to global_with_exf that tests
116        useExfYearlyFields with USE_EXF_INTERPOLATION defined
117    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
118      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
119      subroutines (which could be generated from a template, because they are
120      almost identical), for now they are included in obcs_prescribe_read.F for
121      simplicity
122    o pkg/exf:
123      - add a little more diagnostic to exf_interp_read (in analogy to
124        mds_read_field, can be turned off with debugLevel < debugLevA=1)
125      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
126        ugly but fast by unrolling short inner loops, inserting a unroll=8
127        directive in routine lagran, and splitting a loop and making do while the
128        outermost loop (the latter requires the intoduction of index arrays)
129    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
130    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
131      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
132    o verification/seaice_obcs: updated for restart test and latest options
133    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
134      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
135      for now this is only available for the C-grid code and also within
136      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
137    
138    checkpoint59m
139    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
140      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
141    o gad_som : fix flux output (& diagnostics) to have same units as other  
142      advection scheme fluxes (was previously multiplied by deltaT).  
143    o added verification/seaice_obcs both to test seaice open boundaries
144      and to provide an example matlab scrpt for generating them
145    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
146    o pkg/salt_plume: clean up salt_plume_frac.F to
147      remove redundancy in PlumeMethod 1 and 4
148    o pkg/kpp: added saltplume diagnostics
149    o pkg/obcs and pkg/seaice:
150      - do not set uice and vice to zero when OB*icefile are unspecified
151      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
152      - moved seaice tracer obcs after call to seaice_growth
153    o pkg/salt_plume: added various options for salt plume depth
154      criterion and for vertical distribution of the salt
155    
156    checkpoint59l
157    o pkg/ptracers: new version of ptracers pickup:
158      read meta file and write only fields which are needed to restart.
159      ( same logic as main pickup file ; also using pickupStrictlyMatch )
160    o pkg/seaice:
161      - add timescale for melting due to warm mixed layer as a means of
162        setting SEAICE_availHeatFrac more conveniently
163      - add a CPP-flag/runtime parameter check for flooding algorithm
164      - reformulated availHeat in seaice_growth.F to be independent of AREA
165    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
166      unit changes
167    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
168    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
169      SX vector computer.
170    o pkg/seaice:
171      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
172        seaice forcing fields can now be read only through pkg/exf
173      - removed some unused halos
174    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
175    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
176      or U/VICE from U/VWIND before computing U/VSTRESS
177    
178    checkpoint59k
179    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
180      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
181    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
182      all experiments pass when compile with un-initialised var. checking option.
183    o added pkg/salt_plume
184    o script to test restart (for now, in MITgcm_contrib/jmc_script)
185    o pkg/seaice: new read/write pickup version.
186      read meta file and write only fields which are needed to restart.
187      ( same logic as main pickup file ; also using pickupStrictlyMatch )
188    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
189    o lab_sea.hb87: modify the domain & update output.hb87.txt :
190      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
191      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
192      process. Fixed here by closing the domain at the Northern boundary.
193    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
194    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
195      a set of consecutive levels in/from a 3-D array.
196    o pkg/ptracers:
197      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
198      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
199    
200    checkpoint59j
201    o in pkgs: dic, obcs, offline, rbcs:
202      standard way to compute coeff. for time interpolation between 2 time reccords
203      which retains full precision (& make results less dependent on compiler).
204      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
205    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
206      packages instead of reading ice cover and wind speed separately
207    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
208     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
209      to allow to compile customized code before the update)
210    o cleaning-up:
211      - fix CPP instruction syntax in pkg/obcs
212      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
213        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
214      - fix some threads issue in IO parts.
215    o pkg/dic:
216      - add tons of "_d 0" (--> much better testreports !)
217       and then update outputs of tutorial_global_oce_biogeo
218    o pkg/mom_fluxform:
219      add a special version of momentum advection intended to conserve momentum
220      next to a bathymetry step or a coastline edge. (default = off = #undef)
221    o new read/write pickup version:
222      - for now, only implemented for main (mdsio) pickup file.
223      - write out only what is needed to restart; merge pickup_nh , pickup_ph
224        and main pickup together.
225      - read meta file; read only what is needed to restart; stop if a field
226        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
227        if it make sense (even if the restart is not perfect).
228      - if no meta file, assume that pickup to read corresponds exactly to
229        a pickup that would currently be written.
230      - read pickup written in the old format (until checkpoint59i) if it
231        recognizes an old meta file (no field-list).
232      - add a meta file in exp. which starts from a pickup: 2 cases:
233        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
234         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
235        b) a meta file describing the content of the associated pickup file
236         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
237    o pkg/mdsio & pkg/rw:
238      - new routine to read a meta file ; new set of routine to read
239        Multiple-fields file (with meta file).
240    o added open boundary conditions capability for seaice
241        HSNOW, HSALT, UICE, and VICE
242    
243    checkpoint59i
244    o adjoint:
245      * fix multiDimAdvection adjoint
246        (partial recomputation problem by TAF for fVerT(:,:,kDown)
247        and comlev1 size definition (maxpass vs. max. number of tracers)
248      * verification/global_ocean.90x45x15 adjoint now tests
249        NLFS and multiDimAdvection using DST3 (=30)
250      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
251    o pkg/kpp: add "_d 0" to real constant (if missing);
252      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
253      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
254    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
255      for internal parameters related to restart process (formerly from PARAMS.h)
256      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
257    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
258      as argument. (only atm2d & obcs write_pickup have not yet been updated)
259    o pkg/monitor:
260      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
261      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
262      - account for deep Atmosphere factor and density factor (anelastic)
263    o added open boundary conditions capability for seaice HEFF and AREA
264    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
265      thermodynamics
266      - requires a little reorganization, which affects the testreport results
267        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
268        so that now the conservative form is tested
269      - add a few comments
270    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
271    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
272    o add new diagnostics to seaice: advective, diffusive fluxes (only for
273      multidim-advection, for scheme 2 they are not filled) and transports,
274      thermodynamic growth rates
275    o change units of EmPmR (inside the code, + within coupling interface)
276      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
277      Affects results @ truncation level (cg2d match) and update output of
278       experiments: lab_sea(6), global_ocean.90x40x15(10),
279      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
280      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
281      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
282      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
283    
284    checkpoint59h
285    o pkg/exf:
286      - improve vectorization by moving if-statement out of loops in
287        exf_mapfields, exf_radiation
288      - exf_bulkformulae.F: introduce 2D fields and vectorize code
289    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
290    o testreport:
291      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
292        monitor & update offline_exf_seaice exp. output.
293      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
294    o pkg/seaice:
295      - bug fix in the evp solver: boundary conditions were affected be
296        masking of zMax/zMin (changes results)
297      - minor bug fix in boundary conditions in seaice_calc_strainrates
298        (changes results for no_slip)
299      - seaice_lsr.F: make interpolation of eta dependent on boundaries
300      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
301      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
302        stress formulation and no-slip boundary conditions
303    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
304      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
305    o pkg/seaice: a first HSALT time stepping equation has been checked in
306    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
307      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
308      without requiring DO-IF statements
309    o pkg/thsice:
310      use continuous power-law function for partition of energy between lateral
311      melting/freezing and thinning/thickening ; old code using step function
312      still available with #undef THSICE_FRACEN_POWERLAW
313      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
314    o testreport: change AD testing : check against results/output_adm.txt
315      using same scripts as for forward test.
316    
317    checkpoint59g
318    o adjoint testing: in preparation for changing testreport:
319      - output format: cost and grad written on separated lines
320      - ad output results in directory "results" (instead of "results_ad")
321    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
322    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
323    o pkg/ecco: allow user defined cost function contributions
324    o testreport:
325      Allow to choose (per experiment) the list of tested output variables
326       and the main variable (used to issue a pass/FAIL ) ;
327      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
328      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
329      Also modify printing of summary:
330       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
331       b) echo the list of tested variables in the individual summary.txt of
332          each experiment.
333    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
334      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
335      (but still depend on the tile decompostion of the domain).
336    o pkg/seaice: change a discretization detail to make the B-grid code
337      "more symmetric". This change is likely to remove all "ridges/leads" that
338      where quasi-aligned with the grid in B-grid solutions. It may also be
339      the solution to the stress coupling issues with the B-grid.
340    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
341      remove .cvsignore from input dir. (since testreport no longer run here).
342    o pkg/thsice:
343     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
344     - fix reshaping of sea-ice just after advection:
345       melt all the ice only if ice-volume is too small.
346     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
347       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
348     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
349    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
350      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
351    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
352      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
353      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
354      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
355      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
356      -> update output.txt
357    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
358     this affects truncation error: -> update output.txt of exp:
359      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
360      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
361    
362    checkpoint59f
363    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
364    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
365      a bounded range (in forward mode)
366    o pkg/ecco, ctrl, autodiff and mom_common:
367     internal parameter controls, completements of implementations
368    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
369    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
370      (not seem any difference in testing results).
371    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
372       at face corners.
373    o pkg/generic_advdiff:
374     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
375      loop range indices for computing vertical advection tendency
376      and do the calculation in the interior only (no overlap) ;
377      for now, only implemented for SOM advection (to save CPU time).
378     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
379    o exch2 adjoint
380      First set of changes:
381      - add exch2 hand-written adjoint templates
382      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
383        This will require cleanup in pkg/autodiff/*.F
384        (changed routines currently kept separate in verif. code/)
385      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
386        that used to hide exch2 or cubed-sphere specific code
387        (commented via 'cph-exch2')
388    o pkg/seaice
389      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
390    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
391       output of global_ocean.cs32x15.thsice .
392    
393    checkpoint59e
394    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
395      for B-grid vector (not yet tested) and C-grid vector (<- only used
396      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
397    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
398      (#ifdef ALLOW_SALT_PLUME)
399    o gather_2d/scatter_2d: removed halo regions
400    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
401      scheme and the corresponding test case (under front_relax dir). For now,
402      only available with Skew-flux form and not yet tested in realistic set-up.
403      adjoint: store directives updated, but gradient checks deteriorated,
404      so maybe GM/Redi adjoint is now broken.
405    o seaice adjoint
406      * add AREA, HEFF, HSNOW as control variable
407        (should not change lab_sea results)
408      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
409    o pkg/seaice:
410      * added computation of saltFlux in seaice_growth;
411        For time being, sea ice salinity is assumed constant
412        contribution of snow flooding to freshening of sea ice is neglected.
413        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
414        defaults to 0.0 in order to maintain backward compatibility.
415        Typical values for SEAICE_salinity are 4 to 10 g/kg.
416      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
417      * added SEAICE_availHeatFrac, which specifies fraction of surface level
418        heat content used to melt or grow ice
419      * commented out cap of HICE: it helps keep ice thinner
420      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
421      * applied OBCS T/S mask to HEFFM sea ice mask
422    
423    checkpoint59d
424    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
425     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
426     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
427    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
428     and change default value of parameter "GM_Small_Number";
429     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
430       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
431       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
432    o pkg/ecco: cost function when applying pkg/smooth to controls
433    o pkg/ctrl: add forcingPrecond run time parameter
434    o pkg/seaice:
435     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
436     - fix bug in metric terms of u-equation in LSR solver (implicit part),
437       changes verification/lab_sea
438     - rearrange implicit part of u-equation in LSR solver to make it easier to
439       read, understand, and debug. This causes changes at the truncation level.
440     - fix (serious) bug in the boundary conditions (sign error in the implicit
441       part) of the LSR solver. Changes all LSR results.
442     - fixed problem with HSNOW initialization to avoid thick snow when AREA
443       is initilized with small values - does not change lab_sea results.
444     - added HsnowFile initialization capability
445    o pkg/smooth: addition to model/src and pkg/ctrl so allow
446     initialization of pkg/smooth and application to control vector
447    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
448    o dependencies: pkg/profiles requires pkg/cal
449    o pkg/profiles:
450     - added option ALLOW_PROFILES_GENERICGRID
451         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
452         that interpolation information (grid points and coefficients) is provided
453         within the netcdf input files.
454         -> sample matlab scripts can be found in MITgcm_contrib/gael
455         that allow you to prepare netcdf input files.
456     - also modified: cleaner include statements, cleaner error print statements,
457       cleaner stops when error, and more tests of the netcdf input files consistency.
458    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
459    o pkg/seaice:
460     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
461       requires a new routine: seaice_diagnostics_fill.F
462     - make sure that seaice does not move if not forced (pressure replacement
463       method, Hibler and Ip, 1995), changes results
464     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
465     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
466       It is turned off by default (=-1.), because it changes the results.
467     - make it possible to read AREA from a file, too.
468    
469    checkpoint59c
470    o add S/R and diagnostics for oceanic mixed-layer depth
471    o move GMRedi call after all vertical mixing schemes (including KPP)
472    o pkg/thsice:
473     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
474      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
475    o pkg/obcs:
476     - bug fix for balance code
477    o pkg/seaice:
478      - allow values of SEAICE_elasticParm > 1
479      - add new parameter SEAICE_evpTauRelax as an alternative
480        to SEAICE_elasticParm
481      - make lsr boundary conditions free slip (by default), changes result
482      - add code for no slip boundary conditions for lsr
483      - set minimum of zeta to zero (and not 4e8) (changes results)
484      - add a cap on AREA after advecting AREA if seaice_growth is not called
485    o change calculation of Visbeck K:
486      - no longer depend on tapering scheme; instead, compute slope (limited
487        by GM_maxSlope). this is equivalent to what was comuted before with
488        clipping or linear tappering.
489      - fix vertical averaging (wrong by 1/2 level)
490      - leave the old version (but will not be maintained) within
491        #ifdef OLD_VISBECK_CALC / #endif
492      - update output of exp. ideal_2D_oce
493    o change error catch in calc_r_star to improve vectorization
494    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
495      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
496    o adjoint:
497      Re-organized adjoint checkpointing according to Matt Mazloff
498      (but with modifs/completions/cleanups)
499      Storing is now bundled into large arrays to optimized I/O
500      (and second step in cleanup of the_main_loop)
501    
502    checkpoint59b
503    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
504      - export/import (between ocean & coupler) fields needed for ocean DIC.
505    o pkg/seaice:
506      - get rid of three more exchanges seaice_calc_viscosities (required
507        different loop boundaries in seaice_lsr and seaice_ocean_stress)
508      - bug fix in seaice_ocean_stress (update of lab_sea required)
509      - reduce loop boundaries to necessary minimum also in seaice_evp
510      - go back to the old way of computing deltaC/Z as the adjoint likes that
511        better
512    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
513      passive tracer to an Age Tracer) + update output.txt
514    o pkg/exf:
515      - implement A-grid / C-grid selection for wind-stress input files.
516      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
517      for now, in exf_bulk_largeyeager04.F only :
518      - change implementation for case where windspeed + 2. components wind-stress
519        are read-in. AND use rhoConstFresh to convert evap.
520    o pkg/seaice:
521      - use correct EXCH_UV for wind-forcing (on A-grid).
522      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
523        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
524    o pkg/exf:
525      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
526      EXF_INTERPOLATION:
527      - merge global_with_exf/code version of exf_interp_read.F
528        to the main code ;
529      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
530        reading the file ; Important: This options needs to be defined to recover
531        previous code.
532        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
533      - no longer loose real*8 precision along the way when using exf_iprec=64.
534    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
535      - change discretisation of evp-solver in order to avoid another exchange
536        (changes lab_sea) and clean up a little
537      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
538        help the adjoint (this also changes the results slightly)
539      - add a few "_d 0" where they had been missing in seaice_evp.F
540      - cleaning up: remove unused seaice_calc_rhs.F
541    o pkg/exf: some cleaning-up:
542      - change various "constants" into runtime parameters
543      - cleaned-up Large&Yeager04 routine which should eventually
544        replace exf_bulkformulae.F (changed names of S/R and CPP)
545        and merged various ALLOW_ATM_WIND options
546     only used with thsice pkg (in thsice_get_exf.F):
547      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
548        which are used when useStabilityFct_overIce=TRUE (= the default)
549      - change default values of ice & snow emissivity and scale downward LW
550        by ice & snow emissivity.
551    o pkg/thsice:
552     fix few little problems, in thsice_calc_thickn.F:
553      - growth vertically (and not laterally) if iceFrac == iceMaskMax
554      - melt only laterally if hIce < hThinIce (as the comments say)
555      and in thsice_extend.F:
556      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
557      - start to form ice as soon as the minimum ice-volume is reachable.
558     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
559      and cpl_aim+ocn
560    o pkg/kpp
561     - move computation of surface related input fields to KPP into a new
562       subroutine kpp_forcing_surf.F
563     - remove wrong (within bi,bj loops) EXCH calls.
564     - little cleaning (add argument myThid in last position, cvs header ...)
565     - for now, fix conservation problem by exchanging KPPviscAz (may not
566       be the best fix)
567    o pkg/seaice
568     - check for inconsistent evp parameter/cpp-flag combination
569     - remove leftover errIO flat for obsolete name list error handling
570    o OpenAD
571     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
572    
573    checkpoint59a
574    o pkg/seaice: some parameter clarifications and a little bit of clean up
575    o pkg/thsice: rename run-time parameters:
576       himin       -> hIceMin
577       himin0      -> hThinIce
578       hihig       -> hThickIce
579       i0          -> i0swFrac
580       transCoef   -> bMeltCoef
581       frac_energy -> fracMelting
582      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
583       with default values (for now) that do not change the results.
584      remove old version of thsice vars advection in pkg/seaice.
585    o in FFIELDS.h:
586      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
587      - make pLoad & sIceLoad always available (but still only used if
588         ATMOSPHERIC_LOADING is #define).
589  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
590  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
591      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
592        are no longer updating the vertical diffusivity array
593        (passed as argument) but are (re-) setting those arrays.
594  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
595    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
596      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 26  o pkg/seaice: fix bug in evp solver, whi Line 610  o pkg/seaice: fix bug in evp solver, whi
610      of evp, complete rewrite for lsr case (latter is does not yet work      of evp, complete rewrite for lsr case (latter is does not yet work
611      in all cases)      in all cases)
612  o pkg/kpp: add code to have mixing in shelf ice caverns  o pkg/kpp: add code to have mixing in shelf ice caverns
613      - add myThid to all kpp routines (long overdue)
614    
615  checkpoint59  checkpoint59
616  o pkg/exf:  o pkg/exf:

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