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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1025 by heimbach, Thu Sep 25 16:10:48 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61d
8    o adjoint modifs
9      - adapt to new field rhoInSitu
10      - allow to revert from StoreDynVars2D, StoreDynVars3D
11        to individual fields
12        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
13    o store 3-D (in-situ) density in commom block (DYNVARS.h)
14     - save 1 rho computation.
15     - no longer modify T & S inland when using down_slope pkg.
16    o gad_som : allow to switch to SOM advection for T & S without corresponding
17      pickup files (using new S/R: MDS_CHECK4FILE).
18    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
19      (for useSingleCpuIO to work in multi-threaded)
20    o pkg/shelfice:
21     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
22       with SHELFICEtopoFile in data.shelfice
23     - move code for reading ice shelf topography and modifying hFacC into separate
24       subroutines of the shelfice package
25     - separate initialisation of "fixed" and "variable" variables
26     - kTopC is not (yet) replaced by kSurfC, although this is possible
27    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
28    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
29      and rename:
30      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
31      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
32    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
33    
34    checkpoint61c
35    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
36      to add mass source/sink of fluid in the interior (3-D generalisation
37      of oceanic real-fresh water flux).
38    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
39    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
40    o new pkg: down_slope
41      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
42      - presently, modify T & S inland (dwnslp_calc_rho.F).
43        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
44      - implementation for ocean in P-coords not tested.
45      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
46    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
47      (to facilitate conversion of oceanic pkg to p-coordinate).
48    o change FIND_RHO to FIND_RHO_2D :
49      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
50    o new pkg: cheapaml
51    
52    checkpoint61b
53    o exch2:
54      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
55      - no longer depend on the order sequence (N,S,E,W).
56      - 3rd exchange no longer needed (tested with 24 tiles).
57      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
58      - exch_UV_A-grid readily available (but not yet tested).
59      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
60      (both are no longer needed) in exch_uv: no effect in forward run; but
61       get truncation error differences with adjoint exch.
62    o exch2:
63     - change index-bounds storage (moved from target to local tile,
64       more intuitive this way) ; rename/remove some variables.
65     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
66    
67    checkpoint61a
68    o exch2/matlab-topology-generator:
69      fix bug in index bounds for N-S internal exchange (hard to tell if this
70      had any effect on the solution).
71    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
72      is exceeded
73    o testreport: modify syntax of awk, so that it works also with
74      awk, and not only with nawk and gawk
75    
76    checkpoint61
77    o autodiff
78      Change default for TAF usage by removing argument '-nonew_arg'
79      This changes TAF subroutine argument list (ordering of active var.)
80      Omission of this flag leads to incompatibility w.r.t. TAMC
81      To restore TAMC-compatibility, need following modifs:
82      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
83      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
84      Tested TAF version is 1.9.22
85      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
86    
87    checkpoint60
88    --->>> This is the last checkpoint for which generating the adjoint
89    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
90    --->>> by default.
91    --->>> Future checkpoints will ommit this flag by default.
92    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
93    o pkg/grdchk: Add gradient check to etan0 perturbations.
94    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
95    o pkg/autodiff: more flexibility in zeroadj.
96      model/src: modifying do_oceanic_phys.F accordingly.
97    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
98    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
99      special setup of gmredi for which the adjoint is stable
100      enough for parameter optimization.
101    o bridging the gap between eddy stress and GM.
102      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
103          along with a change in CPP option (now ALLOW_EDDYPSI).
104      -> when using GM w/ GM_AdvForm:
105          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
106          is applied either in the tracer Eq. or in momentum Eq.
107          depending on data.gmredi (intro. GM_InMomAsStress).
108      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
109      The key modifications are in model/src/taueddy_external_forcing.F
110      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
111    
112    checkpoint59r
113    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
114      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
115      fix option to read coriolis(@ cell-corner) from files with CS-grid.
116    o pkg/mnc: add some attributes to standard 1D-coordinate variables
117    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
118      mass points, when using mnc for output
119      - add runtime parameter (missing_value, missing_value_int) to override
120        default (which is the value of getcon('UNDEF'))
121    o pkg/mnc: prepare mnc for the actual use of missing values with the
122      diagnostics package: small fix in mnc_cw_readwrite.template and more
123      initialisation of never used fields
124      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
125      versions
126    o pkg/thsice/thsice_ini_vars.F added default initial values so that
127      thermodynamics sea ice solver does not blow up when some initial fields
128      are missing.
129    o move from external_forcing_surf.F to ini_forcing.F
130      the p-coord. hack consisting in using pLoad to set phi0surf ;
131      update output of tutorial_global_oce_in_p (affected @ truncation level).
132    o Freshen up a bit hs94.1x64x5, notably:
133      remove rotationPeriod and tRef=5*0. (adjoint only), and add
134      exactConserv=.TRUE.
135    o pkg/generic_advdiff:
136      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
137      applies to files where Temperature & Salinity 2nd Order moments are used.
138    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
139      this uses a dynamically allocated internal state data structure
140      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
141      and requires a fortran 90 compiler
142    
143    checkpoint59q
144    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
145       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
146    o Refresh tutorial_global_oce_biogeo, notably:
147      - change bathymetry (put back seamounts in ACC, use hFacs)
148      - change EOS (POLY3 --> JMD95Z)
149      - use Bryan-Lewis vertical diffusivity
150      - use multidimensional advection
151      - remove old virtual virtual in dic pkg, now done through ptracer pkg
152      - change a couple of parameters in dic pkg
153    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
154    o pkg/obcs: change default to OBCSfixTopo = .true.,
155      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
156      - replace "debugMode" with "debugLevel .GE. debLevB"
157    o implementation of TAF directives for gchem,cfc,dic
158    o remove "exp5" (replaced by tutorial_deep_convection).
159    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
160      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
161      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
162      --> changes results in exp4, seaice_obcs
163    o tutorial_deep_convection :
164      update the set-up and increase resolution and domain size ; start
165      from pseudo initial conditions = output at t=120mn in order to see
166      something happening when running testreport.
167    o pkg/seaice: add os7mp as an advection scheme
168                  add check for advection schemes
169                  add a flag for restoring T and S underneath sea ice
170    o pkg/my82: add netcdf-support and diagnostics
171    o thsice pkg:
172      - Now hsMax limits snow height by turning it into ice following
173        flooding scheme (and now conserving energy)
174      - Slight rewriting of the formula in thsice_calc_thick.F
175      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
176      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
177    
178    checkpoint59p
179    o gchem / dic / cfc :
180      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
181      - add new parameter files: "data.dic" & "data.cfc" ;
182      - various re-arrangement in initialisation & header file ;
183      - fix tutorial_global_oce_biogeo for multi-threaded test.
184    o pkg/dic: test for "pickup_dic" file when restarting ;
185      if no pickup-file, can restart with a re-initialised pH (same as it did
186      before) providing pickupStrictlyMatch is set to False.
187    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
188      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
189    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
190      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
191    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
192     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
193       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
194    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
195       scheme to use for vorticty-term ;
196     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
197       (with default selectVortScheme, return to original discretisation)
198     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
199    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
200    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
201      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
202      also fix diagnostics VISCAHW & VISCA4W.
203    
204    checkpoint59o
205    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
206    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
207      move a few statemens out the main loop into separate loops
208    o pkg/shelfice:
209      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
210        (kg/m^2/s), does not break tests, because in verification/isomip,
211        rhoConstFresh=rhoConst (by accident)
212      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
213      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
214        new file model/src/seawater.F, so that they are available for all pkgs.
215      - convert potential temperature into in-situ temperature. This changes the
216        isomip tests => update tests
217    o add a flag writePickupAtEnd (default=true) to be able to suppress
218      writing a pickup at the last timestep
219    o tools/mpack-1.6 :
220      - disable automake (not working) and autoconf (not needed).
221      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
222        also cleaner with much less compilation warnings.
223    o pkg/profiles:
224      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
225      (for "less than 32 characters name" compiler requirement)
226    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
227      conditions that have a different sampling frequency than S/T/U/V obcs
228    o pkg/diagnostics (stats-diags):
229      - fix global Min/Max in case 1 processor get only empty tiles
230    o genmake2: replace (4 times)
231         make genmake_tc_1.o >> genmake_warnings 2>&1
232      with
233         COMM="$CC $CFLAGS -c genmake_tc_1.c"
234         echo $COMM >> genmake_warnings
235         $COMM >> genmake_warnings 2>&1
236      to make genmake2 always see the value of CC as specified in the optfile.
237    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
238      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
239      - modify verification advect_cs test to test SOM-advection on CS-grid.
240    o pkg/ctrl:
241      - Rewrite of ctrl_map_ini_ecco.F,
242        introducing a generic routine (ctrl_map_ini_gen.F).
243      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
244    
245    checkpoint59n
246    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
247      number in dedicate array "hdiag":
248      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
249        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
250      - many small changes (integer format) for large number of diagnostics
251      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
252        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
253    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
254      usingSphericalGrid, this allows to define the rotated grid coordinates
255      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
256      geographical coordinates according to the inverse of the rotation defined
257      by the Euler angles, so that Coriolis parameter and online-interpolation by
258      exf works with the geographical coordinates on XC/YC/XG/YG.
259      Naturally, this feature does not work with all packages, so some
260      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
261      profiles), because there the coordinates are assumed to be regular
262      spherical grid coordinates.
263    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
264      - introduce isopycnal diffusion coefficient control.
265    o tools/adjoint_options:
266      - additional control vector components.
267    o pkg/mnc: have mnc create marginally meaning full coordinate variables
268      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
269    o pkg/mypackage:
270      - add example of read/write pickup for state-var ;
271      - add entry points to the main code for state-vars diags & write-pickup.
272    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
273      transitions for useExfYearlyFields
274      - add new subroutine that determines the file to read from for
275        use*YearlyFields = .TRUE. and .FALSE.
276      - add a verification experiment to global_with_exf that tests
277        useExfYearlyFields with USE_EXF_INTERPOLATION defined
278    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
279      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
280      subroutines (which could be generated from a template, because they are
281      almost identical), for now they are included in obcs_prescribe_read.F for
282      simplicity
283    o pkg/exf:
284      - add a little more diagnostic to exf_interp_read (in analogy to
285        mds_read_field, can be turned off with debugLevel < debugLevA=1)
286      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
287        ugly but fast by unrolling short inner loops, inserting a unroll=8
288        directive in routine lagran, and splitting a loop and making do while the
289        outermost loop (the latter requires the intoduction of index arrays)
290    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
291    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
292      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
293    o verification/seaice_obcs: updated for restart test and latest options
294    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
295      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
296      for now this is only available for the C-grid code and also within
297      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
298    
299    checkpoint59m
300    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
301      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
302    o gad_som : fix flux output (& diagnostics) to have same units as other  
303      advection scheme fluxes (was previously multiplied by deltaT).  
304    o added verification/seaice_obcs both to test seaice open boundaries
305      and to provide an example matlab scrpt for generating them
306    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
307    o pkg/salt_plume: clean up salt_plume_frac.F to
308      remove redundancy in PlumeMethod 1 and 4
309    o pkg/kpp: added saltplume diagnostics
310    o pkg/obcs and pkg/seaice:
311      - do not set uice and vice to zero when OB*icefile are unspecified
312      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
313      - moved seaice tracer obcs after call to seaice_growth
314    o pkg/salt_plume: added various options for salt plume depth
315      criterion and for vertical distribution of the salt
316    
317    checkpoint59l
318    o pkg/ptracers: new version of ptracers pickup:
319      read meta file and write only fields which are needed to restart.
320      ( same logic as main pickup file ; also using pickupStrictlyMatch )
321    o pkg/seaice:
322      - add timescale for melting due to warm mixed layer as a means of
323        setting SEAICE_availHeatFrac more conveniently
324      - add a CPP-flag/runtime parameter check for flooding algorithm
325      - reformulated availHeat in seaice_growth.F to be independent of AREA
326    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
327      unit changes
328    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
329    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
330      SX vector computer.
331    o pkg/seaice:
332      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
333        seaice forcing fields can now be read only through pkg/exf
334      - removed some unused halos
335    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
336    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
337      or U/VICE from U/VWIND before computing U/VSTRESS
338    
339    checkpoint59k
340    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
341      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
342    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
343      all experiments pass when compile with un-initialised var. checking option.
344    o added pkg/salt_plume
345    o script to test restart (for now, in MITgcm_contrib/jmc_script)
346    o pkg/seaice: new read/write pickup version.
347      read meta file and write only fields which are needed to restart.
348      ( same logic as main pickup file ; also using pickupStrictlyMatch )
349    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
350    o lab_sea.hb87: modify the domain & update output.hb87.txt :
351      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
352      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
353      process. Fixed here by closing the domain at the Northern boundary.
354    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
355    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
356      a set of consecutive levels in/from a 3-D array.
357    o pkg/ptracers:
358      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
359      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
360    
361    checkpoint59j
362    o in pkgs: dic, obcs, offline, rbcs:
363      standard way to compute coeff. for time interpolation between 2 time reccords
364      which retains full precision (& make results less dependent on compiler).
365      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
366    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
367      packages instead of reading ice cover and wind speed separately
368    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
369     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
370      to allow to compile customized code before the update)
371    o cleaning-up:
372      - fix CPP instruction syntax in pkg/obcs
373      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
374        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
375      - fix some threads issue in IO parts.
376    o pkg/dic:
377      - add tons of "_d 0" (--> much better testreports !)
378       and then update outputs of tutorial_global_oce_biogeo
379    o pkg/mom_fluxform:
380      add a special version of momentum advection intended to conserve momentum
381      next to a bathymetry step or a coastline edge. (default = off = #undef)
382    o new read/write pickup version:
383      - for now, only implemented for main (mdsio) pickup file.
384      - write out only what is needed to restart; merge pickup_nh , pickup_ph
385        and main pickup together.
386      - read meta file; read only what is needed to restart; stop if a field
387        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
388        if it make sense (even if the restart is not perfect).
389      - if no meta file, assume that pickup to read corresponds exactly to
390        a pickup that would currently be written.
391      - read pickup written in the old format (until checkpoint59i) if it
392        recognizes an old meta file (no field-list).
393      - add a meta file in exp. which starts from a pickup: 2 cases:
394        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
395         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
396        b) a meta file describing the content of the associated pickup file
397         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
398    o pkg/mdsio & pkg/rw:
399      - new routine to read a meta file ; new set of routine to read
400        Multiple-fields file (with meta file).
401    o added open boundary conditions capability for seaice
402        HSNOW, HSALT, UICE, and VICE
403    
404    checkpoint59i
405    o adjoint:
406      * fix multiDimAdvection adjoint
407        (partial recomputation problem by TAF for fVerT(:,:,kDown)
408        and comlev1 size definition (maxpass vs. max. number of tracers)
409      * verification/global_ocean.90x45x15 adjoint now tests
410        NLFS and multiDimAdvection using DST3 (=30)
411      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
412    o pkg/kpp: add "_d 0" to real constant (if missing);
413      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
414      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
415    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
416      for internal parameters related to restart process (formerly from PARAMS.h)
417      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
418    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
419      as argument. (only atm2d & obcs write_pickup have not yet been updated)
420    o pkg/monitor:
421      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
422      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
423      - account for deep Atmosphere factor and density factor (anelastic)
424    o added open boundary conditions capability for seaice HEFF and AREA
425    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
426      thermodynamics
427      - requires a little reorganization, which affects the testreport results
428        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
429        so that now the conservative form is tested
430      - add a few comments
431    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
432    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
433    o add new diagnostics to seaice: advective, diffusive fluxes (only for
434      multidim-advection, for scheme 2 they are not filled) and transports,
435      thermodynamic growth rates
436    o change units of EmPmR (inside the code, + within coupling interface)
437      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
438      Affects results @ truncation level (cg2d match) and update output of
439       experiments: lab_sea(6), global_ocean.90x40x15(10),
440      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
441      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
442      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
443      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
444    
445    checkpoint59h
446    o pkg/exf:
447      - improve vectorization by moving if-statement out of loops in
448        exf_mapfields, exf_radiation
449      - exf_bulkformulae.F: introduce 2D fields and vectorize code
450    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
451    o testreport:
452      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
453        monitor & update offline_exf_seaice exp. output.
454      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
455    o pkg/seaice:
456      - bug fix in the evp solver: boundary conditions were affected be
457        masking of zMax/zMin (changes results)
458      - minor bug fix in boundary conditions in seaice_calc_strainrates
459        (changes results for no_slip)
460      - seaice_lsr.F: make interpolation of eta dependent on boundaries
461      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
462      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
463        stress formulation and no-slip boundary conditions
464    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
465      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
466    o pkg/seaice: a first HSALT time stepping equation has been checked in
467    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
468      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
469      without requiring DO-IF statements
470    o pkg/thsice:
471      use continuous power-law function for partition of energy between lateral
472      melting/freezing and thinning/thickening ; old code using step function
473      still available with #undef THSICE_FRACEN_POWERLAW
474      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
475    o testreport: change AD testing : check against results/output_adm.txt
476      using same scripts as for forward test.
477    
478    checkpoint59g
479    o adjoint testing: in preparation for changing testreport:
480      - output format: cost and grad written on separated lines
481      - ad output results in directory "results" (instead of "results_ad")
482    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
483    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
484    o pkg/ecco: allow user defined cost function contributions
485    o testreport:
486      Allow to choose (per experiment) the list of tested output variables
487       and the main variable (used to issue a pass/FAIL ) ;
488      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
489      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
490      Also modify printing of summary:
491       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
492       b) echo the list of tested variables in the individual summary.txt of
493          each experiment.
494    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
495      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
496      (but still depend on the tile decompostion of the domain).
497    o pkg/seaice: change a discretization detail to make the B-grid code
498      "more symmetric". This change is likely to remove all "ridges/leads" that
499      where quasi-aligned with the grid in B-grid solutions. It may also be
500      the solution to the stress coupling issues with the B-grid.
501    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
502      remove .cvsignore from input dir. (since testreport no longer run here).
503    o pkg/thsice:
504     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
505     - fix reshaping of sea-ice just after advection:
506       melt all the ice only if ice-volume is too small.
507     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
508       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
509     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
510    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
511      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
512    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
513      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
514      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
515      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
516      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
517      -> update output.txt
518    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
519     this affects truncation error: -> update output.txt of exp:
520      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
521      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
522    
523    checkpoint59f
524    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
525    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
526      a bounded range (in forward mode)
527    o pkg/ecco, ctrl, autodiff and mom_common:
528     internal parameter controls, completements of implementations
529    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
530    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
531      (not seem any difference in testing results).
532    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
533       at face corners.
534    o pkg/generic_advdiff:
535     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
536      loop range indices for computing vertical advection tendency
537      and do the calculation in the interior only (no overlap) ;
538      for now, only implemented for SOM advection (to save CPU time).
539     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
540    o exch2 adjoint
541      First set of changes:
542      - add exch2 hand-written adjoint templates
543      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
544        This will require cleanup in pkg/autodiff/*.F
545        (changed routines currently kept separate in verif. code/)
546      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
547        that used to hide exch2 or cubed-sphere specific code
548        (commented via 'cph-exch2')
549    o pkg/seaice
550      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
551    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
552       output of global_ocean.cs32x15.thsice .
553    
554    checkpoint59e
555    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
556      for B-grid vector (not yet tested) and C-grid vector (<- only used
557      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
558    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
559      (#ifdef ALLOW_SALT_PLUME)
560    o gather_2d/scatter_2d: removed halo regions
561    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
562      scheme and the corresponding test case (under front_relax dir). For now,
563      only available with Skew-flux form and not yet tested in realistic set-up.
564      adjoint: store directives updated, but gradient checks deteriorated,
565      so maybe GM/Redi adjoint is now broken.
566    o seaice adjoint
567      * add AREA, HEFF, HSNOW as control variable
568        (should not change lab_sea results)
569      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
570    o pkg/seaice:
571      * added computation of saltFlux in seaice_growth;
572        For time being, sea ice salinity is assumed constant
573        contribution of snow flooding to freshening of sea ice is neglected.
574        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
575        defaults to 0.0 in order to maintain backward compatibility.
576        Typical values for SEAICE_salinity are 4 to 10 g/kg.
577      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
578      * added SEAICE_availHeatFrac, which specifies fraction of surface level
579        heat content used to melt or grow ice
580      * commented out cap of HICE: it helps keep ice thinner
581      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
582      * applied OBCS T/S mask to HEFFM sea ice mask
583    
584    checkpoint59d
585    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
586     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
587     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
588    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
589     and change default value of parameter "GM_Small_Number";
590     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
591       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
592       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
593    o pkg/ecco: cost function when applying pkg/smooth to controls
594    o pkg/ctrl: add forcingPrecond run time parameter
595    o pkg/seaice:
596     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
597     - fix bug in metric terms of u-equation in LSR solver (implicit part),
598       changes verification/lab_sea
599     - rearrange implicit part of u-equation in LSR solver to make it easier to
600       read, understand, and debug. This causes changes at the truncation level.
601     - fix (serious) bug in the boundary conditions (sign error in the implicit
602       part) of the LSR solver. Changes all LSR results.
603     - fixed problem with HSNOW initialization to avoid thick snow when AREA
604       is initilized with small values - does not change lab_sea results.
605     - added HsnowFile initialization capability
606    o pkg/smooth: addition to model/src and pkg/ctrl so allow
607     initialization of pkg/smooth and application to control vector
608    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
609    o dependencies: pkg/profiles requires pkg/cal
610    o pkg/profiles:
611     - added option ALLOW_PROFILES_GENERICGRID
612         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
613         that interpolation information (grid points and coefficients) is provided
614         within the netcdf input files.
615         -> sample matlab scripts can be found in MITgcm_contrib/gael
616         that allow you to prepare netcdf input files.
617     - also modified: cleaner include statements, cleaner error print statements,
618       cleaner stops when error, and more tests of the netcdf input files consistency.
619    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
620    o pkg/seaice:
621     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
622       requires a new routine: seaice_diagnostics_fill.F
623     - make sure that seaice does not move if not forced (pressure replacement
624       method, Hibler and Ip, 1995), changes results
625     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
626     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
627       It is turned off by default (=-1.), because it changes the results.
628     - make it possible to read AREA from a file, too.
629    
630    checkpoint59c
631    o add S/R and diagnostics for oceanic mixed-layer depth
632    o move GMRedi call after all vertical mixing schemes (including KPP)
633    o pkg/thsice:
634     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
635      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
636    o pkg/obcs:
637     - bug fix for balance code
638    o pkg/seaice:
639      - allow values of SEAICE_elasticParm > 1
640      - add new parameter SEAICE_evpTauRelax as an alternative
641        to SEAICE_elasticParm
642      - make lsr boundary conditions free slip (by default), changes result
643      - add code for no slip boundary conditions for lsr
644      - set minimum of zeta to zero (and not 4e8) (changes results)
645      - add a cap on AREA after advecting AREA if seaice_growth is not called
646    o change calculation of Visbeck K:
647      - no longer depend on tapering scheme; instead, compute slope (limited
648        by GM_maxSlope). this is equivalent to what was comuted before with
649        clipping or linear tappering.
650      - fix vertical averaging (wrong by 1/2 level)
651      - leave the old version (but will not be maintained) within
652        #ifdef OLD_VISBECK_CALC / #endif
653      - update output of exp. ideal_2D_oce
654    o change error catch in calc_r_star to improve vectorization
655    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
656      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
657    o adjoint:
658      Re-organized adjoint checkpointing according to Matt Mazloff
659      (but with modifs/completions/cleanups)
660      Storing is now bundled into large arrays to optimized I/O
661      (and second step in cleanup of the_main_loop)
662    
663    checkpoint59b
664    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
665      - export/import (between ocean & coupler) fields needed for ocean DIC.
666    o pkg/seaice:
667      - get rid of three more exchanges seaice_calc_viscosities (required
668        different loop boundaries in seaice_lsr and seaice_ocean_stress)
669      - bug fix in seaice_ocean_stress (update of lab_sea required)
670      - reduce loop boundaries to necessary minimum also in seaice_evp
671      - go back to the old way of computing deltaC/Z as the adjoint likes that
672        better
673    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
674      passive tracer to an Age Tracer) + update output.txt
675    o pkg/exf:
676      - implement A-grid / C-grid selection for wind-stress input files.
677      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
678      for now, in exf_bulk_largeyeager04.F only :
679      - change implementation for case where windspeed + 2. components wind-stress
680        are read-in. AND use rhoConstFresh to convert evap.
681    o pkg/seaice:
682      - use correct EXCH_UV for wind-forcing (on A-grid).
683      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
684        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
685    o pkg/exf:
686      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
687      EXF_INTERPOLATION:
688      - merge global_with_exf/code version of exf_interp_read.F
689        to the main code ;
690      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
691        reading the file ; Important: This options needs to be defined to recover
692        previous code.
693        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
694      - no longer loose real*8 precision along the way when using exf_iprec=64.
695    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
696      - change discretisation of evp-solver in order to avoid another exchange
697        (changes lab_sea) and clean up a little
698      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
699        help the adjoint (this also changes the results slightly)
700      - add a few "_d 0" where they had been missing in seaice_evp.F
701      - cleaning up: remove unused seaice_calc_rhs.F
702    o pkg/exf: some cleaning-up:
703      - change various "constants" into runtime parameters
704      - cleaned-up Large&Yeager04 routine which should eventually
705        replace exf_bulkformulae.F (changed names of S/R and CPP)
706        and merged various ALLOW_ATM_WIND options
707     only used with thsice pkg (in thsice_get_exf.F):
708      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
709        which are used when useStabilityFct_overIce=TRUE (= the default)
710      - change default values of ice & snow emissivity and scale downward LW
711        by ice & snow emissivity.
712    o pkg/thsice:
713     fix few little problems, in thsice_calc_thickn.F:
714      - growth vertically (and not laterally) if iceFrac == iceMaskMax
715      - melt only laterally if hIce < hThinIce (as the comments say)
716      and in thsice_extend.F:
717      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
718      - start to form ice as soon as the minimum ice-volume is reachable.
719     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
720      and cpl_aim+ocn
721    o pkg/kpp
722     - move computation of surface related input fields to KPP into a new
723       subroutine kpp_forcing_surf.F
724     - remove wrong (within bi,bj loops) EXCH calls.
725     - little cleaning (add argument myThid in last position, cvs header ...)
726     - for now, fix conservation problem by exchanging KPPviscAz (may not
727       be the best fix)
728    o pkg/seaice
729     - check for inconsistent evp parameter/cpp-flag combination
730     - remove leftover errIO flat for obsolete name list error handling
731    o OpenAD
732     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
733    
734    checkpoint59a
735    o pkg/seaice: some parameter clarifications and a little bit of clean up
736    o pkg/thsice: rename run-time parameters:
737       himin       -> hIceMin
738       himin0      -> hThinIce
739       hihig       -> hThickIce
740       i0          -> i0swFrac
741       transCoef   -> bMeltCoef
742       frac_energy -> fracMelting
743      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
744       with default values (for now) that do not change the results.
745      remove old version of thsice vars advection in pkg/seaice.
746    o in FFIELDS.h:
747      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
748      - make pLoad & sIceLoad always available (but still only used if
749         ATMOSPHERIC_LOADING is #define).
750    o pkg/kpp: replaced _KPP_RL with _RL
751    o bug fixes for vertical diffusivity computations when both KPP and
752        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
753        are no longer updating the vertical diffusivity array
754        (passed as argument) but are (re-) setting those arrays.
755    o pkg/seaice: fix bug in evp solver, while doing that
756      - change (improve?) discretization of stress computations for both
757        cgrid-lsr and evp solver
758      - add a new routine to compute strain rates
759      - the above changes lab_sea results
760      - add no slip conditions for evp solver (off by default), lsr-version
761        may follow
762      - fix exchange for shear at Z-points (does not change lab_sea)
763      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
764        (to force the user to pick a time step since there is not "safe" way
765        of choosing it)
766      - add principal stress diagnostics
767      - rearrange fields for evp a little to avoid having to call a: too many
768        exchanges and b: exchanges for stress trensor components which we do
769        not have.
770      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
771        of evp, complete rewrite for lsr case (latter is does not yet work
772        in all cases)
773    o pkg/kpp: add code to have mixing in shelf ice caverns
774      - add myThid to all kpp routines (long overdue)
775    
776    checkpoint59
777    o pkg/exf:
778      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
779        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
780      - move exf header files from lower_case.h to UPPER_CASE.h ;
781        add missing cvs Header & Name
782      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
783      - add namelist param. selectStressGridPosition, exf_monFreq
784      - retire many _CLIM routines, and remove data.exf_clim
785        + params moved to data.exf
786        + climsst, climsss now handled by exf_set_gen, i.e.
787          climss?period=0 refers to constant field,
788          climss?period=-12 to monthly forcing
789      - split up namelists in data.exf
790    o pkg/seaice:
791      - remove seaice_exch and seaice_exch_uv
792      - remove superfluous exchange of theta
793      - add myThid to seaice_budget_ocean/ice
794      - add new interface for atmospheric wind forcing (C-grid only)
795        + new routine
796        + two new field (taux, tauy for stress over ice)
797        + removed one global field (DAIRN) for C-grid case only
798    o pkg/thsise
799      - 2nd set of modifs for thsice adjoint in conjunction with exf
800    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
801    
802    checkpoint58y_post
803    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
804      vertical diffusivity, similar to that in MOM4; turned on using
805      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
806      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
807    o Added capability for 3D specification of background vertical diffusion
808      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
809      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
810      "data" file that contains the 3D vertical diffusivity coefficients.
811    o ice dynamics (pkg/seaice) with thsice thermodynamics:
812      - add code within pkg thsice to advect & diffuse sea-ice fields
813      similar to (and will replace) what has been added in  seaice_advdiff.F,
814      but: - conserving Mass, Heat & Salt.
815           - better when using non-linear advection scheme (not yet fully tested)
816           - can also be used in atmospheric set-up (for now, only the diffusion).
817    
818    checkpoint58x_post
819    o IO option for global-file compact format:
820      - add options when generating topology (utils/exch2/matlab-topology-generator)
821      - add I/O capability (pkg/mdsio).
822      - adapt utils/matlab/rdmds.m to read this format.
823      for now long-line format not yet supported by pkg/mdsio (& exch2).
824    o shelfice: add a few diagnostics
825    
826    checkpoint58w_post
827    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
828      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
829      (and replace horiVertRatio in NH code).
830      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
831                         and tutorial_plume_on_slope (sensitive to truncation)
832    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
833      directly to drive seaice model (C-grid only)
834    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
835     - reintroduce computation of wind from stress,
836     - compute tau (in exf_bulkformulae.F) from windstress averaged to
837       mass points to avoid tau = 0
838     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
839    o rdmnc.m: make it work with "global" files created with gluemnc
840    o rdmnc.m : some improvements in dealing with singleton dimension
841      (tested on all testreport mnc output files).
842    o genmake2: disable pkg/profiles if netcdf test fails.
843    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
844    o move call to cal_readparms up to make calendar parameters/variable available
845      to all packages
846    
847    checkpoint58v_post
848    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
849      useDynP_inEos_Zc tested.
850    o pkg/exf: changes to properly interpolate/mask/scale initial fields
851    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
852      and portions thereof.  See read_cs.txt for description and examples.
853    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
854      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
855      following the great-circle arc between those 2 points.
856    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
857      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
858    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
859     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
860     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
861     - still needs work (not working with some options ; efficiency to improve)
862       and serious testing.
863     - use this scheme for temperature & salinity in 2 advection test exp.:
864       advect_xy & advect_xz, respectively.
865    
866    checkpoint58u_post
867    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
868    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
869    o testreport: add option "-skipdir" to skip some test.
870    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
871      momentum calculation.
872    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
873    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
874      remove checkpoint.F and the_correction_step.F (no longer used);
875      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
876    o add option (linFSConserveTr) to correct for tracer source/sink due to
877      Linear Free surface
878    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
879    o pkg/thsice: fix reading mnc-pickups
880    
881    checkpoint58t_post
882    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
883    o pkg/mdsio:
884     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
885       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
886       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
887     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
888     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
889       either MDS_READ_FIELD or MDS_WRITE_FIELD )
890     - new S/R (to replace MDSWRITEMETA), which allows to write more
891       informations (variable names, time ...) to meta files.
892     - modify rdmds.m to give back the meta file content.
893    o pkg/diagnostics: change vertical interpolation to be safer, and more
894       flexible (define p-levels to interpolate to in data.diagnostics);
895      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
896       diagnostic pointer.
897    o pkg/seaice: more cleaning up of seaice_growth, added many comments
898    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
899    o fix multi-category seaice:
900     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
901       SEAICE_MULTICATEGORY
902     - fix short wave heat flux
903    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
904       and allow to use EVP solver. Change forward lab_sea: test both EVP
905       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
906    o Initial check-in of lab_sea adjoint
907      (very similar to natl_box_adjoint/code_seaice)
908      * used C-grid and EVP solver
909      * used KPP, GM/Redi
910      * uses inAdExact=.TRUE.
911      * gradient checks fail for both ADM and TLM
912        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
913        f.d. gradients actually seem more problematic than ADM, TLM gradients;
914        issue is related to forward mismatch between g77 an ifort
915    o pkg/seaice: overhaul of thermodynamics
916     - growth.F and groatb.F are replaced by new routine seaice_growth.F
917     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
918     - move a few global fields out of SEAICE.h into seaice_growth.F and
919       make them 2D (FICE/QNETO/ ...)
920     - remove FO (it is the same as QNETO)
921     - introduce a few local fields to avoid modifying external fields such
922       as atemp, etc.
923    
924    checkpoint58s_post
925    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
926      changed exf_set_gen.F so that
927        genperiod=0 means input file is one time-constant field and
928        genperiod=-12 means input file contains 12 monthly means
929    o CG2D: use pre-computed solver main-diagonal (stored in common block);
930      this affects truncation error ; generate new output file for exp. which
931      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
932        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
933        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
934        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
935        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
936        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
937    o start implementation of deep-atmosphere and anelastic formulation
938    o verification: remove 2nd copy of input files and use script "prepare_run"
939      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
940    o mom_common/vecinv/fluxform: fix a few initialisation isssues
941    o profiles: fix for multithreaded case
942    
943    o diagnostics: rename few diags:
944      s/'PRESSURE'/'RCENTER '/g
945      s/'TICE    '/'oceFreez'/g
946      s/'TAUX    '/'oceTAUX '/g
947      s/'TAUY    '/'oceTAUY '/g
948      s/'SWFLUX  '/'oceQsw  '/g
949      s/DIFx/DFxE/g
950      s/DIFy/DFyE/g
951      and add few ocean-forcing diagnostics:
952      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
953    o modifications to pkg/seaice/growth.F and budget.F, which change results of
954      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
955      as actual snow thickness.  It now refers everywhere to effective snow
956      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
957    
958    checkpoint58r_post
959    o modifications to pkg/seaice/growth.F, which change results of
960      lab_sea experiment: fixes pertain to melting snow over open water, to
961      masking EVAP under sea ice, and to using the correct AREA variable for
962      computations of EVAP, PRECIP, HSNOW, and GHEFF
963    o add ability to read bathy, salt, and theta using MNC (off by def)
964    o add flooding algorithm and advection of HSNOW for pkg/seaice;
965      both are turned off by default and do no change any results
966    o seaice advection with pkg/thsice: a step toward the use of non-linear
967      advection scheme, but #ifdef or commented out for now (requires more EXCH).
968    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
969      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
970      in natl_box (affects results @ truncation level: update output.txt)
971    o multi-threading and IO:
972      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
973      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
974        (needed to work with SingleCpuIO): tested in all verif. exp.
975    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
976      affects the results (but none of the verification test uses this scheme).
977    o Adding some pkg/diagnostics capability to pkg/seaice
978      (will certainly be subject to changes)
979    o ctrl: adding new control variables:
980      lwflux, lwdown, evap, snowprecip, apressure, runoff
981    
982    checkpoint58q_post
983    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
984      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
985      high_res_cube configuration by 4% on Columbia.
986    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
987      add (in global_with_exf/code) a version of EXF_INTERP_READ without
988      dynamical allocation (seems to work in multi-threaded).
989    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
990      single CPU io) so that TAF does not have to see EESUPPORT.h
991    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
992    
993    checkpoint58p_post
994    o obcs: stop if obcs is used with useCDscheme = .true.
995    o shelfice:
996     - fix a sign error so that no slip at shelfice interface works
997     - remove stop for combination non-hydrostatic code and shelfice. That does
998       not mean, that the results are correct, but at least they are numerically
999       stable
1000    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1001    o added adjoint exch routined for all exch*3d* routines
1002      and updated flow directives
1003    
1004    checkpoint58o_post
1005    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1006      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1007    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1008      and clean-up reading/writing of pickup files.
1009    o fix local version of read/write pickup (NH part) in rotating_tank/code
1010    o simplify EXCH interface:
1011     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1012     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1013    o added the regrid package
1014    o shelfice:
1015     - add a simple boundary layer scheme to reduce noise
1016     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1017    
1018    checkpoint58n_post
1019    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1020       local variable (not in common block).
1021    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1022      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1023      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1024        to work with SingleCpuIO.
1025    o add "_d 0" to real constant of pkg/cfc subroutines ;
1026       update exp. cfc_exemple & tutorial_cfc_offline output files.
1027    o multi-threading and IO:
1028      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1029        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1030      - barrier before and after reading.
1031      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1032      - avoid using MDS_WRITELOCAL for LAND pkg output.
1033      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1034        common-block variables ; Allows multi-threading with master-thread IO.
1035    o change default MAX_NO_THREADS from 32 to 4 ;
1036      and stop cleanly when MAX_NO_THREADS is too small.
1037    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1038    
1039    checkpoint58m_post
1040    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1041       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1042    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1043       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1044       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1045    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1046        add MITgcm_tutorials (= code + all the tutorials)
1047    o ecco, option to compute cost for total ssh (mean+anom)
1048    o consistent with addition of ptracer and ssh in pkg/profiles
1049    o profiles: adding ptracer and ssh
1050    o testreport: change multi-test output-file name
1051      (from output.txt.{name} to output.{name}.txt)
1052    o profiles: now ok for mutli-tiles case
1053    o seaice: add 4 parameters for different advection schemes for area,
1054      (effective) seaice thickness, enthalphy, and snow height. Their default
1055      is the standard parameter SEAICEadvScheme
1056    o calc_gw:
1057     - add cosFacU in zonal viscous flux (harmonic.visc.).
1058     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1059       of tutorial_plume_on_slope.
1060    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1061    o calc_gw: true flux-form, account for horizontal grid spacing.
1062      update rotating_tank results, but not plume_on_slope (affected at
1063      truncation level, 11 digits).
1064    
1065    checkpoint58l_post
1066    o calc_gw:
1067     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1068     - remove side-drag for now (need to fix it); update plume_on_slope results.
1069     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1070    o commit code to make SST/SSS weights spatially variable
1071      (based on either variable in-situ or variable initial T/S weights)
1072    o pkg/ecco:
1073      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1074        now based on horizontally varying weights wthetaLev, wsaltLev
1075      * cost_averagesflags now returns year indices in addition to day, month
1076      * sflux balance is performed on annual basis
1077        (sflxumm, sfluxmm2, bal_sfluxmm)
1078      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1079        including separate counting and multipliers
1080    o pkg/rbcs
1081      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1082    
1083    checkpoint58k_post
1084    o testreport:
1085     - always build in dir. "build" (if not there, mkdir build instead of building
1086       & running in input)
1087     - run in dir run (if it exists), in build otherwise.
1088     - call prepare_run (if input/prepare_run exists)
1089     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1090    o pkg/exf modifications to interpolation and rotation routines for more
1091       reasonable treatment of North Pole singularity: for tracers North Pole
1092       value is set to northernmost zonal-mean value, for zonal velocity it is
1093       set to zero, and for meridional velocity it is set to northernmost value.
1094    o pkg/exf/exf_check_range.F
1095     - add tile index to diagnostics and move stop statement to the very
1096       end of the routine.
1097    o pkg/diagnostics: (diagnostics_main_init.F)
1098      define title of isomorphic variables according to the current config.
1099    o pkg/thsice with pkg/seaice dynamics:
1100    - fix domain of computation (interior only, required for exf) and do exchanges
1101    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1102    o towards a standard way of dealing with multi-threading in MONITOR
1103      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1104    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1105       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1106    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1107    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1108    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1109       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1110    o tracer advection:
1111     - clean-up and simplify calc_common_factors.F
1112     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1113       advection subroutine (but still not used within DST advection S/R)
1114    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1115    
1116    checkpoint58j_post
1117    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1118      from file (collects calls previously in FORWARD_STEP)
1119    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1120    o adjoint store dir. adjusted accordingly
1121    o genmake2
1122      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1123    
1124    checkpoint58i_post
1125    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1126      on wind stress (SEAICEstressFactor defaults to 1.)
1127    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1128      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1129    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1130      on CS-grid: no longer loosing mass.
1131    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1132    o pkg/ggl90: fix sloppy output and fix a bug
1133    o pkg/seaice: added SEAICEuseEVPpickup parameter
1134      - Set to false in order to start EVP solver with
1135        non-EVP pickup files when using SEAICEuseEVP
1136      - fix sign error in diffusion in seaice_calc_rhs
1137    
1138    checkpoint58h_post
1139    * Modifications for bottom topography control
1140      o replace hFacC by _hFacC at various places
1141      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1142      o add non-self-adjoint cg2d_nsa
1143      o update autodiff support routines
1144      o re-initialise hfac after ctrl_depth_ini
1145      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1146    * Adding verification for 5x5 box (4-layer) bottom topography control
1147    
1148    checkpoint58g_post
1149    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1150       used for mean seasonal cycle, mean diurnal cycle); add an example
1151       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1152    o pkg/ggl90:
1153      - add parameter (minimum surface kinetic energy)
1154      - fix bug (avoiding division by zero)
1155    o couple pkg/thsice to pkg/seaice:
1156      - modify advection in seaice to accomodate new scalar fields to be advected
1157      - only muliDimAdection scheme work with seaice/thsice
1158      - mapping of thsice-variables to seaice-variables, back and forth
1159      - does not break the verification experiments, but does not give the
1160        desired results either
1161    o pkg/seaice
1162      - make (default) second order advection a bit less confusing?
1163    
1164    checkpoint58f_post
1165    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1166      to pkg/seaice):
1167      - new routines thsice_map_exf and thsice_get_exf provide the interface
1168      - add an additional formal parameter to thsice_solve4temp
1169    o pkg/exf:
1170      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1171      - correct Stefan-Boltzmann constant
1172      - new parameter for longwave surface emittance
1173      - separate some stuff from exf_bulkformulae into new routines  
1174        exf_radiation, exf_wind
1175      - add new parameters and constants: longwave emissivity for ocean, ice
1176        and snow, evaporation parameters over ice
1177      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1178        either wind from stress or stress from wind
1179    o pkg/thSIce:
1180    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1181    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1182       and THSICE_CALC_THICKN
1183    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1184    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1185      to make debugging easier.
1186    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1187    o pkg/bulk_force:
1188      - clean-up comments and parameters ;
1189      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1190    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1191      generate new output for test-experiment: aim.5l_cs.thSI
1192    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1193      testreport accordingly
1194    
1195    checkpoint58e_post
1196    o SEAICE_CGRID adjoint done
1197    o R_STAR adjoint implemented.
1198      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1199      * need to sort out init. of h0facc, etc.
1200    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1201      to be able to use it in pure forward.
1202    
1203    checkpoint58d_post
1204    o upgrade simple test-experiment to tutorial example:
1205     step.1: duplicate the experiment and (step.2) will remove the old copy.
1206      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1207      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1208      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1209      tutorial_global_oce_biogeo    <- copy of dic_example
1210      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1211      tutorial_plume_on_slope       <- copy of plume_on_slope
1212      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1213      tutorial_global_oce_optim     <- empty for now (David ?)
1214      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1215     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1216    o correct a sign problem in cost_scat.F
1217    o obcs and ptracers: fix boundary conditions for advections schemes
1218      with larger stencil
1219    o thsice adjoint: start
1220    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1221      completeness
1222    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1223      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1224    o ptracers adjoint:
1225      * avoid extensive recomputatations
1226      * fix missing re-init. of gptr (missed by TAF)
1227    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1228      me to turn off the excessive output to STDOUT that this package produces
1229    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1230      and add those terms in Vector-Invariant formulation.
1231    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1232      if the control period (xx_hfluxperiod etc) is 0
1233    o in profiles pkg, clean routines and fix details
1234    o in ecco pkg, reading ssh data:
1235      fix problem in case the model does not start at iter0=0
1236    o fix mnc-pickup/restart for ptracers
1237    o new package prifiles:
1238      code to compute profile-based cost by Gael Forget
1239      (modifs in ecco, ctrl, autodiff)
1240    o Benign bug fix in initialization (spotted by M. Mazloff) of
1241      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1242    
1243    checkpoint58c_post
1244    o adjoint: finish NLFS adjoint and provide reference output in
1245      verification/global_ocean.90x40x15/results_ad_nlfs
1246    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1247      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1248      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1249      with SEAICE_CGRID defined.
1250    o move calendarDumps from "data" to "data.cal" and clean-up the code
1251      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1252    o add useEXF & useCAL flags (for now, set in hard-coded way)
1253    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1254      (were missing in NH mode, and wrong in quasihydrostatic mode).
1255      waiting for Chris updated version of calc_gw to add those CALLs.
1256    o fix bug in quasihydrostatic S/R ;
1257      add a test for this option: global_ocean.90x40x15.qshyd
1258    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1259      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1260    o add on/off flag useOffLine for package OFFLINE
1261    o seaice:
1262      - modify advection so that it works also on the C-grid
1263      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1264        problem in multi-tile runs with C-grid
1265      - add flags for clipping ice velocities and/or masking solver forcing
1266      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1267        C-grid solver
1268      - added a few comments to seaice_diffusion.F
1269      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1270        are now exclusive)
1271      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1272        required re-ordering the code a little:
1273       + make DAIRN global variable (defined in SEAICE)
1274       + move computation of the viscosities eta and zeta into a new separate
1275         routine (because I need to recompute them in seaice_ocean_stress.F)
1276    
1277    checkpoint58b_post
1278    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1279      update output.txt of exp. aim.5l_cs.thSI
1280    o various mnc cleanups and improvements:
1281      + shrink lookup tables by factor of ~4
1282      + better error reporting when running out of lookup space
1283      + able to handle longer path/file names (up to 500 chars)
1284    o adjoint:
1285      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1286      - TBD: "hidden" mom_vecinv recomp. in dynamics
1287    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1288     (allow to differentiate between forcing components using new integer flags:
1289      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1290     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1291    o ecco
1292      - enable trend removal from SSH anomaly obs.
1293    o adjoint
1294      - a fix for PmEpR when #undef EXACT_CONSERV
1295      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1296      - try to fix "hidden" recomp. in forward_step for NLFS
1297        (NLFS seems broken sometimes after I checked it in)
1298    o seaice:
1299     - add c-grid version of the dynamic solver:
1300       + three new routines that are the c-grid substitute lsr, dynsolver
1301         and ostres
1302       + put a few fields that were local to dynsolver into global common
1303         blocks, so that I can move the computation of stresses etc into
1304         seaice_lsr (saves coding but may break the adjoint).
1305     - replace more hardwired parameters by runtime parameters
1306     - add ice masks that mask the rhs of the implicit solvers where there
1307       is no ice (commented out in seaice_dynsolver, because i am not sure
1308       if this works properly), eventually this should replace the clipping
1309       of ice velocities in seaice_dynsolver to +/-40cm/s.
1310    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1311      include it only where its needed
1312    o move balancing of fluxes before the call of external_forcing_surf
1313    o seaice:
1314      - correct units of turning angles (now they are really in degrees)
1315      - move computation of GWATX/Y out of main routine into dynsolver
1316      - initialize GWATX/Y in seaice_init
1317    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1318      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1319    o seaice: add runtime flags for turning angles (default to zero)
1320    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1321      and trend from exf forcing and ctrl control adjustments
1322    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1323      (since checkpoint57x_post)
1324    o change the default rotation period to 86164.s = the Earth rotation
1325    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1326      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1327    o seaice advection: add code for choosing between the default (2nd order
1328      central differences) and multiDim advection schemes provided by
1329      pkg/generic_advdiff
1330    o seaice:
1331      - removed all references to SEAICE_GRID.h fields from
1332        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1333        (cubed-sphere configuration will change a little)
1334      - grid computations in seaice_init are obsolete now.
1335      - cleaned up code a little so that is easier to read (hopefully).
1336      - added new (better?) discretizations of default advection and diffusion
1337        (turn on with SEAICEuseFluxForm)
1338      - replace 1 in 3d global fields by kSurface in growth.F
1339      
1340    checkpoint58a_post
1341    o seaice:
1342      - bug fix in advect.F
1343    o shelfice:
1344      - separate shelfice load anomaly from pload (breaks with time
1345        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1346        Its default is 0., but it may be computed more cleverly from (unknown)
1347        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1348        done offline. A good approximation of the pressure load anomaly is
1349        necessary to avoid large initial adjustment processes underneath
1350        deep-reaching shelfice.
1351      - small fix in ISOMIP shelfice_thermodynamics
1352      - add more sophisticated thermodynamics of Hellmer (1989), this is
1353        now the default
1354      - give a few constants more intuitive names
1355    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1356      if bulk formulae are used in long integration (especially EmPmR). Turn
1357      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1358      if balancePrintMean, the imbalance that is substracted is printed to
1359      STDOUT.
1360    o fix bug (typo) in obcs_apply_eta.F
1361    o add a new package shelfice which enables us to model the circulation
1362      underneath shelf-ice with draughts of hundreds of meters.
1363     - works
1364     - to do: + include improved thermodynamics
1365              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1366                instead of new field kTopC
1367              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1368                instead of new field R_shelfIce and new code in ini_depth.F
1369                and ini_mask_etc.F?
1370              + adjust vertical mixing schemes?
1371    o seaice pkg:
1372     - add a cpp-flag to include a simple formula for a salinity dependent
1373       freezing point of sea water at the surface
1374     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1375       meridional stresses are now different (and hopefully correct)
1376    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1377       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1378       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1379    o pkg/diagnostics: add options and parameters for regional-statistics
1380       diagnostics ; define regions by reading a region-mask from a file
1381       (might add other options later)
1382    o pkg/bulk_force:
1383     - add option and parameters to use AIM surface-flux formulae.
1384     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1385       others forcing fields (defined in PARM05, parameter file "data") are loaded
1386       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1387     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1388     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1389     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1390       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1391     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1392    
1393    checkpoint58
1394    o add "--embed-source" option to genmake2 which, when the supporting
1395      tools can be compiled (as determined by genmake2) will turn on the
1396      embed_files package which then embeds the entire MITgcm source code
1397      (*.[fFhc] + Makefile) used for the build within the executable
1398      - requested by CNH but off by default
1399      - adds a paltry <9MB to the mitgcmuv executable in most cases
1400      - only writes the output when useEMBEDSRC in eedata is true
1401    o clean up 3-dim. relaxation codes:
1402      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1403      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1404      * Thanks to Tom Haine for testing!
1405    
1406    checkpoint57z_post
1407    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1408      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1409    o fix the pickup behavior for obcs in combination with ptracers
1410    o fix a bug in ptracers_external_fields_load
1411    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1412      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1413    o transfered surface NH pressure to eta field (if exactConserv).
1414    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1415         and update lab_sea output.txt file.
1416    o completing 3-dim. relaxation code: additional term
1417         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1418      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1419      * At compile time, in "EXF_OPTIONS.h" set
1420          #define  ALLOW_CLIMTEMP_RELAXATION
1421          #define  ALLOW_CLIMSALT_RELAXATION
1422      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1423          tauThetaClimRelax3Dim = 15552000.0,
1424          tauSaltClimRelax3Dim  = 15552000.0,
1425      * 3 cases:
1426          1) Use a constant-in-time 3-dim. field
1427          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1428          3) Real-time relax. to time-evolving prescribed field
1429    o Adding Laplacian-type smoothness constraint on
1430      initial and boundary (forcing) controls (ic, bc)
1431      * enable at compile-time via
1432        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1433      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1434      * Absolute scale somewhat unclear so far
1435      * no area weighting was included since no other cost term does so far
1436    
1437    checkpoint57y_post
1438    First step for a NLFS adjoint
1439    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1440    o new init. routines for calc_r_star, calc_surf_dr
1441    o still need to deal with ini_masks_etc
1442    o testreport seemed happy
1443    checkpoint57y_pre
1444    
1445    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1446    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1447    o add new offset feature to offline pkg (plus minor cleanup)
1448    o cfc fixes for final year of integration
1449    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1450      be in GCHEM_OPTIONS).
1451    
1452    checkpoint57x_post
1453    o fix testreport Pb in multiple test experiment.
1454    o cleanup our namelist syntax in verification:
1455      - make it more F95 standards compliant (some work still needed)
1456      - allows the vast majority of our tests to work with gfortran
1457    o Non-Hydrostatic:
1458     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1459     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1460    o Allow to apply AB on T,S rather than on AB(gT,gS):
1461     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1462     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1463       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1464     - need a "clever" read_pickup to restart from the other AB formulation
1465    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1466    o remove some unused variables (reduces number of compiler warnings)
1467    o adjoint
1468      * Disable useVariableViscosity for adjoint for time being
1469        (there are a number of extensive recomputations)
1470      * Initialize certain variables needed for adjoint
1471    
1472    checkpoint57w_post
1473    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1474                 fix the singleCpuIO RS version of MDSWRITEFIELD
1475       and add a WARNING if using globalFiles=T with multi-processors.
1476    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1477      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1478    o tracer advection scheme:
1479      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1480       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1481       was not very convenient).
1482      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1483       (further tests needed for the implicit DST & Flux-Limiter schemes).
1484    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1485      and sRef for convenience, handy, when you want to initialize
1486      ptracers in a large domain with a constant non-zero value. Also,
1487      untangle ptracers_init.F a little.
1488    
1489    checkpoint57v_post
1490    o change dome exp. to use variable viscosity in side-drag terms.
1491    o remove all the files from the cfc_offline test since they are now
1492      incorporated into tutorial_cfc_offline which has been producing
1493      identical results for a few days of testing
1494    o add new parameter: sideDragFactor to enable half-slip-side BC
1495      and change side-drag S/R to use viscosity from mom_calc_visc
1496      (can switch back by setting sideDragFactor=0.); affects results at
1497      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1498       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1499    o vorticity & strain are now computed without masking, to account for
1500      no-slip-side BC in variable viscosity calculation ; mask is applied
1501      anyway later on, before computing advection/coriolis terms.
1502    o modify exp4 to test new obcs support for reading from external files
1503      and for passive tracers
1504    o fix behavior of ptracers_monitor when monitor output is written to a
1505      netcdf-file; still not independent of monitor.F (writes in the same
1506      file).
1507    o change default value of tRef (put a uniform, meaningful value for ocean
1508      & atmos) and initialize sRef (was missing, as Martin mentioned).
1509    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1510      to be proportional to enstrophy dissipation length.  Thus,
1511       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1512      This is now consistent with Smagorinsky and with the manual.
1513    
1514    checkpoint57u_post
1515    o OBCS and PTRACERS: add open boundary support for passive tracers
1516      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1517        OB-values from file; this is not different from the way theta and salinity
1518        are treated
1519      - however, Orlanski-radiation conditions are not supported, and the model
1520        will stop if you use pTracers and Orlanski at the same time.
1521      - beefed up the rountine obcs_external_fields_load: now only those open
1522        boundary values are overwritten with values from files for which there
1523        are really files, otherwise the OB-fields remain untouched. This makes
1524        it possible to use different OBs at different ends of the domain (as
1525        with EXF)
1526    o reduce number of exch calls in shap_filt (s2).
1527    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1528      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1529    
1530    checkpoint57t_post
1531    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1532    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1533      same truncation, independent of the face number: affects affects several
1534      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1535    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1536      note that biharmonic viscosity + no-slip was not tested in any experiment.
1537    o fix bug in non-linear free-surf side-drag ; generate new output for
1538      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1539    o make mnc honor the writeBinaryPrec flag for most kinds of output
1540    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1541    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1542      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1543    o add brackets in multi-terms sum to get same truncation, independent of
1544      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1545      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1546    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1547      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1548      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1549      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1550      Suggested values of viscosity parameters found in mom_calc_visc.
1551      Many new viscosity diagnostics available.
1552    
1553    checkpoint57s_post
1554    o Add clearing-house for viscosity calculations, mom_calc_visc and
1555      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1556      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1557      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1558      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1559      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1560      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1561      ViscAhStrain and viscAhTension are now retired.
1562    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1563    o In response to JMC's bug report, genmake2 now ignores any soft-links
1564      that it finds in the *current* directory when searching for files.
1565      Soft-links found in any other source directories will still work as
1566      they did before.
1567    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1568      a C routine to unlimit the stack size
1569    o mnc-ify pkg/aim snapshot vars
1570    o mnc-ify pkg/land as requested by Daniel
1571    o various changes to mnc including:
1572      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1573      - output can now be grouped so that all files within a group
1574          change the ITER portion of their names in lock-step together
1575      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1576          and works with both EXCH1 and EXCH2 (but needs more testing)
1577      - writing works for all verification test cases w/ g77 on Linux
1578    
1579    checkpoint57r_post
1580    o make MNC variable initialization happen earlier
1581    o add diagnostics for (almost) each term of the momentum Eq.
1582    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1583    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1584    o remove MINIMAL_TAVE_OUTPUT option ;
1585      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1586    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1587      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1588    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1589    o add time-dependent SST, SSS control
1590    o cost terms in ecco/ modularized (new cost_generic.F)
1591    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1592    o new infrastructure for seaice model vs. obs misfits in seaice/
1593      * driver from the_main_loop.F is seaice_cost_driver.F
1594      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1595      * gradient check in Exp. 6a of natl_box_adjoint/
1596    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1597      (see README file)
1598    
1599    checkpoint57q_post
1600    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1601    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1602      - bug was reported by Jean-Michel and Ian Fenty
1603    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1604      update exp. cpl_aim+ocn output.
1605    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1606      Needed for high-res. runs with large global files
1607      to be able to limit tapelev size
1608    o Changed some tests for adjoint:
1609      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1610      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1611      * global_ocean.90x40x15/ back to default 3-level checkpointing
1612    o Modifications to enable scripted COMMON to MODULE conversion
1613      * verification/OpenAD/code/ has necessary scripts and description;
1614      * converts, compiles and runs successfully;
1615    
1616    checkpoint57p_post
1617    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1618    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1619      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1620    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1621    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1622      (was already the case for dissipation with mom_vecinv,
1623       and also the case for grad.PhiHyd when staggered-timeStep)
1624      This will allow to put dissipation out-off the AB time-stepping.
1625     Unfortunately, affects truncation error. Update output of exp. that "fails"
1626      (cg2d matching number) and leave the others for later: front_relax(10),
1627      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1628      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1629    
1630    checkpoint57o_post
1631    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1632      (2) its ready to be documented during the 20050801 DocFest
1633    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1634      for ideal_2D_oce and lab_sea on linux_ia32_g77
1635    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1636      in global1x1_tot/code_seaice_adj to access indices 32, 33
1637      (worth another tag)
1638    
1639    checkpoint57n_post
1640    o adding precip control xx_precip 32
1641    o adding swflux control xx_swflux 33
1642    o Replacing 10 forcing penalty cost routines by 1 generic.
1643    o Implementing partitioning in time-mean and variable adjustment
1644      for atmos. state.
1645    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1646    o in natl_box_adjoint:
1647      * updated exp 1 to 10
1648        (but does not have time-mean vs. variable split results yet)
1649    o updated global1x1/*_seaice_adj/
1650      to incorporate latest changes
1651    o enable useSingleCpuIO for mdsio vector routines
1652      (applies in particular to tapelev I/O)
1653    o removed inefficient K-loop in all active_file*control*.F
1654    
1655    checkpoint57m_post
1656    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1657      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1658    o pkg/exch2: filling of face-corner halo regions is optional
1659      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1660    
1661    checkpoint57l_post
1662     tag before updating tutorials (pre-release-2)
1663    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1664       for output and interpolation of input fields onto model grid)
1665    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1666       Affects results of exp. rotating_tank ; update output.txt.
1667    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1668          and taking the square quantity and/or using a fraction-weight field.
1669    o fix aim_diagnostics_init.F mate numbers.
1670    o add mnc output capability to diagnostics/diagstat and update
1671      our cvsignore files for the ACSII output generated
1672    
1673    checkpoint57k_post
1674    o lab_sea now uses diagnostics package and provides a suite of
1675      new EXF diagnostics output.
1676    
1677    checkpoint57j_post
1678    o exf
1679      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1680        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1681        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1682      * extended diagnostics output
1683        - now includes all EXF variables
1684        - hs, hl moved to common block
1685        - separate S/R for diagnostics, called after ctrl vector is added
1686        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1687        - EXFqnet contains true Qnet (i.e. includes qsw)
1688      * updated verif. lab_sea, global_with_exf
1689      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1690        to ensure that diagnostics sees a true EXFqnet
1691    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1692    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1693      several times with different frequencies.
1694    o mnc-ify the thsice package as requested by Daniel Enderton
1695      - the monitor--MNC output needs work
1696      - many attributes need to be added (most are currently blank)
1697    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1698      - many attributes need to be added (most are currently blank)
1699    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1700    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1701    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1702      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1703         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1704    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1705     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1706    
1707    checkpoint57i_post
1708    o Diagnostics package was changed: diagnostic allocation is now deactivated
1709      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1710    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1711      add 1rst Order upwind vertical Shear.
1712    o add a quick fix for A/B checkpointing in OFFLINE mode
1713    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1714      end-run around the C/Fortran linking horror in eesup/src/timers.F
1715    o added pkg/runclock: allows user to terminate run based on wall clock
1716    o added non-hydrostatic scaling parameter: nh_am2
1717    o pkg/my82: futile attempt to make results compiler-independent by adding
1718      some "_d 0", etc. no effect.
1719    o for mnc output, fill the 'T' coordinate var with myTime and create a
1720      separate 'iter' variable for iteration count
1721    o pkg/diagnostics:
1722      add new capability: output of Global/Regional & per-level statistics ;
1723      tested against monitor output (including land & thSIce) on various exp.
1724    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1725    
1726    checkpoint57h_done
1727      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1728      data.diagnostics, data.gchem, data.ptracers) is done.
1729    
1730    o pkg/diagnostics: prepare for Global/Regional statistics.
1731      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1732    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1733      and rename it: DIFFERENT_MULTIPLE
1734    
1735    checkpoint57h_post
1736    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1737    o pkg/diagnostics: change output frequency, now in seconds (instead
1738      of Nb of iterations). This requires to change data.diagnostics.
1739    checkpoint57h_pre
1740    
1741    o in mnc, let the user create the output dir if both mnc_outdir_date
1742      and mnc_outdir_num are false
1743    o add fflags() to pkg/diagnostics which allows one to specify, on a
1744      per-file basis, the file precision [default behavior is unchanged]
1745    o added diagnostics to pkg/kpp, including computation of mixed layer
1746      depth based on a temperature/density criterion
1747    o updated verification/natl_box to test the new pkg/kpp diagnostics
1748    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1749    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1750    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1751      not mnc -- this mistake was found by JMC and is now corrected
1752    
1753    checkpoint57g_post
1754    o add Adams-Bashforth 3rd Order time stepping:
1755      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1756      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1757    checkpoint57g_pre
1758    
1759    o make lambda[Theta,Salt]ClimRelax spatially varying
1760      (default remains spatially uniform constant based on tau)
1761    o added new control variables
1762      * init. uVel, vVel, etanN
1763      * lambda[Theta,Salt]ClimRelax
1764    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1765      (suggested by G. Forget)
1766    
1767    checkpoint57f_post
1768    o add parameter "baseTime" = model base time = time at iteration zero
1769      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1770      account for baseTime shift
1771    o move Coriolis arrays from PARAMS.h to GRID.h
1772    checkpoint57f_pre
1773    
1774    o mnc-ifying the seaice package
1775    o introduced an alternative length scale calculation for use in the limiting
1776      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1777    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1778    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1779      as well as grad(vort3).  Made it compatible with both approximate form
1780      for the cubed sphere and full form of these gradients.  Added flag
1781      useFullLeith to select between approximate and full form.  
1782    o add "d0" in getcon.F to reduce differences between compilers/platforms
1783      update output.txt of exp. fizhi-gridalt-hs
1784    o change port_rand funtion to allow to set the seed.
1785    o fix obscure MNC bug involving conversion between reals and integers
1786      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1787        new version is now more standards-compliant
1788    o adjoint-related modifications
1789      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1790      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1791      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1792    
1793    checkpoint57e_post
1794    o Adding eddy stress controls a la Ferreira et al.
1795    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1796    
1797    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1798      update output.txt of exp. fizhi-gridalt-hs
1799    o add more "Z" dimensions and associated coordinate vars to MNC
1800    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1801    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1802      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1803      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1804      months and years.  Requires pkg/cal.
1805    o diagnostics: add pickup functionality
1806      - off by default for backwards compatibility
1807      - current version only uses MDSIO -- MNC will be added
1808    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1809    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1810    
1811    checkpoint57d_post
1812    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1813    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1814      output from the diagnostics package
1815    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1816    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1817      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1818    o add coordinate variables to the MNC output from the diagnostics package
1819    o change MNC-flags default value: true when useMNC=TRUE
1820    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1821      the ability (off by default) to read the grid information using MNC
1822    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1823    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1824    o do snap-shot diagnostics at the middle of the time-interval (instead of
1825      at the end).
1826    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1827      new test for AIM with thSIce + slab-ocean
1828    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1829    o move state variable diagnostics to the beginning of the time step ;
1830      (note: still needs some work specially for snap-shot diagnostics)
1831      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1832    
1833    checkpoint57c_post
1834    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1835    o generate new output.txt files on faulks with g77 & the new -ieee option
1836    checkpoint57c_pre
1837    
1838    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1839      update output.txt of exp. global_ocean.90x40x15
1840    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1841      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1842    o add saltFlux(+File) forcing capability with periodicExternalForcing
1843    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1844    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1845    o improvements for the MNC output from DIAGNOSTICS:
1846      - correct handling of the unlimitied dimension
1847      - all dims now have associated coordinate variables
1848      - variables located at U, V, and Corner ("Z") points are now written
1849        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1850        *all* data points are output
1851    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1852    o added pkg/seaice/seaice_monitor.F
1853    o mdsio_readfield.F can now read files visible only to master MPI process.
1854    o pkg/seaice: some test code for ice-modified ocean stress
1855    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1856      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1857      spurious negative numbers for precipitation and humidity.  Will cause
1858      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1859    o pkg/ctrl/
1860      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1861        May be enabled via doPackDiag
1862      *  introduce z-scaling of
1863         + gradient (doZscalePack) and
1864         + control (doZscaleUnpack)
1865    o pkg/mdsio/
1866      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1867      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1868    
1869    checkpoint57b_post
1870    o simplify options in diagnostics_fill arguments (remove weird combinations)
1871    o fix MNC coordinate variables so that they now contain per-face index
1872      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1873      general, EXCH2 grids are only aligned to a "local" coordinate system
1874    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1875    o Implement instantaneous output within pkg diagnostics:
1876      setting a negative frequency in data.diagnostics produces
1877     "snap-shot" output (as opposed to time-average if freq > 0)
1878    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1879      NOTE: change ptracer diagnostics name: use 2 characters to work with
1880            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1881    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1882      becomes the coordinate variable for the 'T' dimension
1883    o add CF-style coordinate variables to MNC
1884      - just a first cut:  numbers are meaningless on the cubesphere and
1885        missing along the T axis but otherwise it works!
1886    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1887    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1888    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1889      this is based directly on what the model compute, so that the content of
1890      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1891    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1892    o clean up build options files for SunOS, in particular
1893      - remove -traditional from xmakedepend
1894      - change -xarch=v9 to -xarch=native for f77
1895      - restore use of make (not gmake)
1896      - add CC=gcc if using g77
1897    o changes per discussion of AM, JMC, & EH3 today:
1898      - move redundant "grid" variables out of "state" -- in preparation of
1899        creating proper CF-style coordinate variables and in recognition
1900        that any/all grid variables can be easily copied (eg. w/NCO) from
1901        the grid files into any of the other NetCDF files
1902      - *always* output grid variables with MDSIO (this will eventually be
1903        changed)
1904      - output MNC grid file if useMNC is true
1905    o every instance of _END_MASTER() has been found and replaced with
1906      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1907      preprocessors
1908    o re-arrange diagnostics pkg initialisation:
1909     - allow each package to extend the available diagnostics list
1910     - add some checking and fix small problems (multi-threaded, ...)
1911     - new S/R diagnostics_fill (replace fill_diagnostics):
1912       look through the short list of active diag. (instead of the long list)
1913       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1914    
1915    checkpoint57a_post
1916    o this set of changes restores TAMC compatibility
1917      tested for global_ocean.90x40x15 adjoint on trough
1918      (what a pain)
1919    
1920    checkpoint57a_pre
1921    o some modifs in tools/build_options for sunos
1922    o call ctrl_pack for ctrl at end for optimcycle=0
1923    
1924    checkpoint57
1925    o add horizontal bi-harmonic viscosity for vertical velocity
1926      - new parameter viscA4W (defaults to viscA4)
1927      - affects only non-hydrostatic code
1928      - to be done: no-slip lateral boundary conditions
1929    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1930    o implement Implicit Vertical advection for pTracers
1931    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1932      (implemented also for implicit vertical diffusion & advection)
1933    o OBCS: extend application of tracer open boundary conditions
1934      to a strip beyond the boundary of width Olx/Oly
1935    o add call monitor to TAF set of required calls (flow directives)
1936      and include in natl_box_adjoint
1937    o untangle a few ifdefs related to cost, ctrl, autodiff
1938      untangel a few ALLOW_ECCO_OPTIMIZATION
1939    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1940      (theta2, salt2 in ecco_cost_weights)
1941    
1942    checkpoint56c_post
1943    o OBCS as control variables
1944      - update ctrl_ad_diff.list, obcs_ad_diff.list
1945      - remove balance of obcs controls from default
1946      - fix index bug nobcs in ctrl_init
1947      - fix dummy fields filen in ctrl_pack
1948      - add dummy weights for obcs
1949    o lsopt: comment out fort.94 output
1950    o optim:
1951      - remove unnecessary header files
1952      - adjusted namelists
1953      - add xerbla.F to Makefile
1954    o exf:
1955      - multiple modifications of exf_check_range
1956      - unit change in exf_init_runoff from [m/year] to [m/s]
1957    o mdsio:
1958      - i/o-vector change debugLevel from debLevA to debLevB
1959    
1960    checkpoint56b_post
1961    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1962      is called from DO_THE_MODEL_IO
1963      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1964      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1965      - clean up PTRACERS_WRITE_TIMEAVE a little
1966    o add another verification experiment that tests both the cfc-pkg and
1967      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1968      reactive tendencies treated inline with regular timestepping
1969    o testreport previously did a lousy job of comparing small numbers, so
1970      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1971      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1972      testreport.
1973    o ptracers_monitor: bug fix for MPI
1974    
1975    checkpoint56a_post
1976    o GCHEM: finish reorganizating the package
1977      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1978        (introduces another 3D-array for each passive tracer, but only if
1979        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1980        gchemTendency is not needed because the timestep is done separately)
1981      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1982      - GCHEM is now---more or less cleanly---separate from PTRACERS
1983      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1984        so clear to me how that should be done in a general way.
1985    o CFC: improve formatting of output in CFC_ATMOS
1986    o PTRACERS:
1987      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1988        that ALL experiments with ptracers enable can be checked. This makes
1989        GCHEM_MONITOR obsolete.
1990      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1991        monitorFreq
1992      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1993    o add PTRACERS (PTR0[1-5]) to testreport output
1994    o exf_check_range:
1995      * default changed to .TRUE.
1996      * will check values for niter0 if debLevA, every timestep if debLevB
1997      * STOP in exf_check_range if 'out of range'
1998      * range chosen generous to allow for potential extema
1999      TBD: a version with stricter range
2000           permitted range would be runtime parameters
2001  o GMredi:  o GMredi:
2002    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2003    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 2006  o GCHEM:
2006    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
2007      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2008    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
2009      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2010        this flag is now only visible within GCHEM-pkg routines.
2011      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2012        be replaced by a 3D array that is computed before thermodynamics; for
2013        this, the tracer ID iTracer had to be included into the parameter list
2014        of ptracers_forcing
2015      - set up forward_step to call gchem_forcing, that will replace
2016        gchem_forcing_int in ptracers_forcing
2017      - cleaning up
2018  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
2019    
2020  checkpoint56  checkpoint56

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