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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.1015 by jmc, Wed Aug 13 15:12:04 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    o move kSurfC,kSurfW 7 kSurfS from SURFACE.h to GRID.h (next to kLowC)
8      (to facilitate conversion of oceanic pkg to p-coordinate).
9    o change FIND_RHO to FIND_RHO_2D :
10      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
11    o new pkg: cheapaml
12    
13    checkpoint61b
14    o exch2:
15      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
16      - no longer depend on the order sequence (N,S,E,W).
17      - 3rd exchange no longer needed (tested with 24 tiles).
18      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
19      - exch_UV_A-grid readily available (but not yet tested).
20      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
21      (both are no longer needed) in exch_uv: no effect in forward run; but
22       get truncation error differences with adjoint exch.
23    o exch2:
24     - change index-bounds storage (moved from target to local tile,
25       more intuitive this way) ; rename/remove some variables.
26     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
27    
28    checkpoint61a
29    o exch2/matlab-topology-generator:
30      fix bug in index bounds for N-S internal exchange (hard to tell if this
31      had any effect on the solution).
32    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
33      is exceeded
34    o testreport: modify syntax of awk, so that it works also with
35      awk, and not only with nawk and gawk
36    
37    checkpoint61
38    o autodiff
39      Change default for TAF usage by removing argument '-nonew_arg'
40      This changes TAF subroutine argument list (ordering of active var.)
41      Omission of this flag leads to incompatibility w.r.t. TAMC
42      To restore TAMC-compatibility, need following modifs:
43      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
44      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
45      Tested TAF version is 1.9.22
46      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
47    
48    checkpoint60
49    --->>> This is the last checkpoint for which generating the adjoint
50    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
51    --->>> by default.
52    --->>> Future checkpoints will ommit this flag by default.
53    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
54    o pkg/grdchk: Add gradient check to etan0 perturbations.
55    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
56    o pkg/autodiff: more flexibility in zeroadj.
57      model/src: modifying do_oceanic_phys.F accordingly.
58    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
59    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
60      special setup of gmredi for which the adjoint is stable
61      enough for parameter optimization.
62    o bridging the gap between eddy stress and GM.
63      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
64          along with a change in CPP option (now ALLOW_EDDYPSI).
65      -> when using GM w/ GM_AdvForm:
66          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
67          is applied either in the tracer Eq. or in momentum Eq.
68          depending on data.gmredi (intro. GM_InMomAsStress).
69      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
70      The key modifications are in model/src/taueddy_external_forcing.F
71      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
72    
73    checkpoint59r
74    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
75      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
76      fix option to read coriolis(@ cell-corner) from files with CS-grid.
77    o pkg/mnc: add some attributes to standard 1D-coordinate variables
78    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
79      mass points, when using mnc for output
80      - add runtime parameter (missing_value, missing_value_int) to override
81        default (which is the value of getcon('UNDEF'))
82    o pkg/mnc: prepare mnc for the actual use of missing values with the
83      diagnostics package: small fix in mnc_cw_readwrite.template and more
84      initialisation of never used fields
85      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
86      versions
87    o pkg/thsice/thsice_ini_vars.F added default initial values so that
88      thermodynamics sea ice solver does not blow up when some initial fields
89      are missing.
90    o move from external_forcing_surf.F to ini_forcing.F
91      the p-coord. hack consisting in using pLoad to set phi0surf ;
92      update output of tutorial_global_oce_in_p (affected @ truncation level).
93    o Freshen up a bit hs94.1x64x5, notably:
94      remove rotationPeriod and tRef=5*0. (adjoint only), and add
95      exactConserv=.TRUE.
96    o pkg/generic_advdiff:
97      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
98      applies to files where Temperature & Salinity 2nd Order moments are used.
99    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
100      this uses a dynamically allocated internal state data structure
101      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
102      and requires a fortran 90 compiler
103    
104    checkpoint59q
105    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
106       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
107    o Refresh tutorial_global_oce_biogeo, notably:
108      - change bathymetry (put back seamounts in ACC, use hFacs)
109      - change EOS (POLY3 --> JMD95Z)
110      - use Bryan-Lewis vertical diffusivity
111      - use multidimensional advection
112      - remove old virtual virtual in dic pkg, now done through ptracer pkg
113      - change a couple of parameters in dic pkg
114    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
115    o pkg/obcs: change default to OBCSfixTopo = .true.,
116      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
117      - replace "debugMode" with "debugLevel .GE. debLevB"
118    o implementation of TAF directives for gchem,cfc,dic
119    o remove "exp5" (replaced by tutorial_deep_convection).
120    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
121      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
122      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
123      --> changes results in exp4, seaice_obcs
124    o tutorial_deep_convection :
125      update the set-up and increase resolution and domain size ; start
126      from pseudo initial conditions = output at t=120mn in order to see
127      something happening when running testreport.
128    o pkg/seaice: add os7mp as an advection scheme
129                  add check for advection schemes
130                  add a flag for restoring T and S underneath sea ice
131    o pkg/my82: add netcdf-support and diagnostics
132    o thsice pkg:
133      - Now hsMax limits snow height by turning it into ice following
134        flooding scheme (and now conserving energy)
135      - Slight rewriting of the formula in thsice_calc_thick.F
136      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
137      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
138    
139    checkpoint59p
140    o gchem / dic / cfc :
141      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
142      - add new parameter files: "data.dic" & "data.cfc" ;
143      - various re-arrangement in initialisation & header file ;
144      - fix tutorial_global_oce_biogeo for multi-threaded test.
145    o pkg/dic: test for "pickup_dic" file when restarting ;
146      if no pickup-file, can restart with a re-initialised pH (same as it did
147      before) providing pickupStrictlyMatch is set to False.
148    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
149      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
150    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
151      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
152    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
153     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
154       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
155    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
156       scheme to use for vorticty-term ;
157     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
158       (with default selectVortScheme, return to original discretisation)
159     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
160    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
161    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
162      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
163      also fix diagnostics VISCAHW & VISCA4W.
164    
165    checkpoint59o
166    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
167    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
168      move a few statemens out the main loop into separate loops
169    o pkg/shelfice:
170      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
171        (kg/m^2/s), does not break tests, because in verification/isomip,
172        rhoConstFresh=rhoConst (by accident)
173      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
174      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
175        new file model/src/seawater.F, so that they are available for all pkgs.
176      - convert potential temperature into in-situ temperature. This changes the
177        isomip tests => update tests
178    o add a flag writePickupAtEnd (default=true) to be able to suppress
179      writing a pickup at the last timestep
180    o tools/mpack-1.6 :
181      - disable automake (not working) and autoconf (not needed).
182      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
183        also cleaner with much less compilation warnings.
184    o pkg/profiles:
185      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
186      (for "less than 32 characters name" compiler requirement)
187    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
188      conditions that have a different sampling frequency than S/T/U/V obcs
189    o pkg/diagnostics (stats-diags):
190      - fix global Min/Max in case 1 processor get only empty tiles
191    o genmake2: replace (4 times)
192         make genmake_tc_1.o >> genmake_warnings 2>&1
193      with
194         COMM="$CC $CFLAGS -c genmake_tc_1.c"
195         echo $COMM >> genmake_warnings
196         $COMM >> genmake_warnings 2>&1
197      to make genmake2 always see the value of CC as specified in the optfile.
198    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
199      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
200      - modify verification advect_cs test to test SOM-advection on CS-grid.
201    o pkg/ctrl:
202      - Rewrite of ctrl_map_ini_ecco.F,
203        introducing a generic routine (ctrl_map_ini_gen.F).
204      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
205    
206    checkpoint59n
207    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
208      number in dedicate array "hdiag":
209      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
210        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
211      - many small changes (integer format) for large number of diagnostics
212      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
213        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
214    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
215      usingSphericalGrid, this allows to define the rotated grid coordinates
216      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
217      geographical coordinates according to the inverse of the rotation defined
218      by the Euler angles, so that Coriolis parameter and online-interpolation by
219      exf works with the geographical coordinates on XC/YC/XG/YG.
220      Naturally, this feature does not work with all packages, so some
221      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
222      profiles), because there the coordinates are assumed to be regular
223      spherical grid coordinates.
224    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
225      - introduce isopycnal diffusion coefficient control.
226    o tools/adjoint_options:
227      - additional control vector components.
228    o pkg/mnc: have mnc create marginally meaning full coordinate variables
229      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
230    o pkg/mypackage:
231      - add example of read/write pickup for state-var ;
232      - add entry points to the main code for state-vars diags & write-pickup.
233    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
234      transitions for useExfYearlyFields
235      - add new subroutine that determines the file to read from for
236        use*YearlyFields = .TRUE. and .FALSE.
237      - add a verification experiment to global_with_exf that tests
238        useExfYearlyFields with USE_EXF_INTERPOLATION defined
239    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
240      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
241      subroutines (which could be generated from a template, because they are
242      almost identical), for now they are included in obcs_prescribe_read.F for
243      simplicity
244    o pkg/exf:
245      - add a little more diagnostic to exf_interp_read (in analogy to
246        mds_read_field, can be turned off with debugLevel < debugLevA=1)
247      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
248        ugly but fast by unrolling short inner loops, inserting a unroll=8
249        directive in routine lagran, and splitting a loop and making do while the
250        outermost loop (the latter requires the intoduction of index arrays)
251    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
252    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
253      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
254    o verification/seaice_obcs: updated for restart test and latest options
255    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
256      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
257      for now this is only available for the C-grid code and also within
258      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
259    
260    checkpoint59m
261    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
262      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
263    o gad_som : fix flux output (& diagnostics) to have same units as other  
264      advection scheme fluxes (was previously multiplied by deltaT).  
265    o added verification/seaice_obcs both to test seaice open boundaries
266      and to provide an example matlab scrpt for generating them
267    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
268    o pkg/salt_plume: clean up salt_plume_frac.F to
269      remove redundancy in PlumeMethod 1 and 4
270    o pkg/kpp: added saltplume diagnostics
271    o pkg/obcs and pkg/seaice:
272      - do not set uice and vice to zero when OB*icefile are unspecified
273      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
274      - moved seaice tracer obcs after call to seaice_growth
275    o pkg/salt_plume: added various options for salt plume depth
276      criterion and for vertical distribution of the salt
277    
278    checkpoint59l
279    o pkg/ptracers: new version of ptracers pickup:
280      read meta file and write only fields which are needed to restart.
281      ( same logic as main pickup file ; also using pickupStrictlyMatch )
282    o pkg/seaice:
283      - add timescale for melting due to warm mixed layer as a means of
284        setting SEAICE_availHeatFrac more conveniently
285      - add a CPP-flag/runtime parameter check for flooding algorithm
286      - reformulated availHeat in seaice_growth.F to be independent of AREA
287    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
288      unit changes
289    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
290    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
291      SX vector computer.
292    o pkg/seaice:
293      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
294        seaice forcing fields can now be read only through pkg/exf
295      - removed some unused halos
296    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
297    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
298      or U/VICE from U/VWIND before computing U/VSTRESS
299    
300    checkpoint59k
301    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
302      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
303    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
304      all experiments pass when compile with un-initialised var. checking option.
305    o added pkg/salt_plume
306    o script to test restart (for now, in MITgcm_contrib/jmc_script)
307    o pkg/seaice: new read/write pickup version.
308      read meta file and write only fields which are needed to restart.
309      ( same logic as main pickup file ; also using pickupStrictlyMatch )
310    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
311    o lab_sea.hb87: modify the domain & update output.hb87.txt :
312      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
313      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
314      process. Fixed here by closing the domain at the Northern boundary.
315    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
316    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
317      a set of consecutive levels in/from a 3-D array.
318    o pkg/ptracers:
319      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
320      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
321    
322    checkpoint59j
323    o in pkgs: dic, obcs, offline, rbcs:
324      standard way to compute coeff. for time interpolation between 2 time reccords
325      which retains full precision (& make results less dependent on compiler).
326      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
327    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
328      packages instead of reading ice cover and wind speed separately
329    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
330     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
331      to allow to compile customized code before the update)
332    o cleaning-up:
333      - fix CPP instruction syntax in pkg/obcs
334      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
335        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
336      - fix some threads issue in IO parts.
337    o pkg/dic:
338      - add tons of "_d 0" (--> much better testreports !)
339       and then update outputs of tutorial_global_oce_biogeo
340    o pkg/mom_fluxform:
341      add a special version of momentum advection intended to conserve momentum
342      next to a bathymetry step or a coastline edge. (default = off = #undef)
343    o new read/write pickup version:
344      - for now, only implemented for main (mdsio) pickup file.
345      - write out only what is needed to restart; merge pickup_nh , pickup_ph
346        and main pickup together.
347      - read meta file; read only what is needed to restart; stop if a field
348        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
349        if it make sense (even if the restart is not perfect).
350      - if no meta file, assume that pickup to read corresponds exactly to
351        a pickup that would currently be written.
352      - read pickup written in the old format (until checkpoint59i) if it
353        recognizes an old meta file (no field-list).
354      - add a meta file in exp. which starts from a pickup: 2 cases:
355        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
356         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
357        b) a meta file describing the content of the associated pickup file
358         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
359    o pkg/mdsio & pkg/rw:
360      - new routine to read a meta file ; new set of routine to read
361        Multiple-fields file (with meta file).
362    o added open boundary conditions capability for seaice
363        HSNOW, HSALT, UICE, and VICE
364    
365    checkpoint59i
366    o adjoint:
367      * fix multiDimAdvection adjoint
368        (partial recomputation problem by TAF for fVerT(:,:,kDown)
369        and comlev1 size definition (maxpass vs. max. number of tracers)
370      * verification/global_ocean.90x45x15 adjoint now tests
371        NLFS and multiDimAdvection using DST3 (=30)
372      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
373    o pkg/kpp: add "_d 0" to real constant (if missing);
374      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
375      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
376    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
377      for internal parameters related to restart process (formerly from PARAMS.h)
378      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
379    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
380      as argument. (only atm2d & obcs write_pickup have not yet been updated)
381    o pkg/monitor:
382      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
383      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
384      - account for deep Atmosphere factor and density factor (anelastic)
385    o added open boundary conditions capability for seaice HEFF and AREA
386    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
387      thermodynamics
388      - requires a little reorganization, which affects the testreport results
389        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
390        so that now the conservative form is tested
391      - add a few comments
392    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
393    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
394    o add new diagnostics to seaice: advective, diffusive fluxes (only for
395      multidim-advection, for scheme 2 they are not filled) and transports,
396      thermodynamic growth rates
397    o change units of EmPmR (inside the code, + within coupling interface)
398      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
399      Affects results @ truncation level (cg2d match) and update output of
400       experiments: lab_sea(6), global_ocean.90x40x15(10),
401      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
402      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
403      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
404      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
405    
406    checkpoint59h
407    o pkg/exf:
408      - improve vectorization by moving if-statement out of loops in
409        exf_mapfields, exf_radiation
410      - exf_bulkformulae.F: introduce 2D fields and vectorize code
411    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
412    o testreport:
413      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
414        monitor & update offline_exf_seaice exp. output.
415      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
416    o pkg/seaice:
417      - bug fix in the evp solver: boundary conditions were affected be
418        masking of zMax/zMin (changes results)
419      - minor bug fix in boundary conditions in seaice_calc_strainrates
420        (changes results for no_slip)
421      - seaice_lsr.F: make interpolation of eta dependent on boundaries
422      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
423      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
424        stress formulation and no-slip boundary conditions
425    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
426      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
427    o pkg/seaice: a first HSALT time stepping equation has been checked in
428    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
429      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
430      without requiring DO-IF statements
431    o pkg/thsice:
432      use continuous power-law function for partition of energy between lateral
433      melting/freezing and thinning/thickening ; old code using step function
434      still available with #undef THSICE_FRACEN_POWERLAW
435      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
436    o testreport: change AD testing : check against results/output_adm.txt
437      using same scripts as for forward test.
438    
439    checkpoint59g
440    o adjoint testing: in preparation for changing testreport:
441      - output format: cost and grad written on separated lines
442      - ad output results in directory "results" (instead of "results_ad")
443    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
444    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
445    o pkg/ecco: allow user defined cost function contributions
446    o testreport:
447      Allow to choose (per experiment) the list of tested output variables
448       and the main variable (used to issue a pass/FAIL ) ;
449      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
450      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
451      Also modify printing of summary:
452       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
453       b) echo the list of tested variables in the individual summary.txt of
454          each experiment.
455    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
456      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
457      (but still depend on the tile decompostion of the domain).
458    o pkg/seaice: change a discretization detail to make the B-grid code
459      "more symmetric". This change is likely to remove all "ridges/leads" that
460      where quasi-aligned with the grid in B-grid solutions. It may also be
461      the solution to the stress coupling issues with the B-grid.
462    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
463      remove .cvsignore from input dir. (since testreport no longer run here).
464    o pkg/thsice:
465     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
466     - fix reshaping of sea-ice just after advection:
467       melt all the ice only if ice-volume is too small.
468     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
469       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
470     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
471    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
472      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
473    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
474      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
475      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
476      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
477      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
478      -> update output.txt
479    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
480     this affects truncation error: -> update output.txt of exp:
481      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
482      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
483    
484    checkpoint59f
485    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
486    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
487      a bounded range (in forward mode)
488    o pkg/ecco, ctrl, autodiff and mom_common:
489     internal parameter controls, completements of implementations
490    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
491    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
492      (not seem any difference in testing results).
493    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
494       at face corners.
495    o pkg/generic_advdiff:
496     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
497      loop range indices for computing vertical advection tendency
498      and do the calculation in the interior only (no overlap) ;
499      for now, only implemented for SOM advection (to save CPU time).
500     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
501    o exch2 adjoint
502      First set of changes:
503      - add exch2 hand-written adjoint templates
504      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
505        This will require cleanup in pkg/autodiff/*.F
506        (changed routines currently kept separate in verif. code/)
507      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
508        that used to hide exch2 or cubed-sphere specific code
509        (commented via 'cph-exch2')
510    o pkg/seaice
511      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
512    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
513       output of global_ocean.cs32x15.thsice .
514    
515    checkpoint59e
516    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
517      for B-grid vector (not yet tested) and C-grid vector (<- only used
518      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
519    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
520      (#ifdef ALLOW_SALT_PLUME)
521    o gather_2d/scatter_2d: removed halo regions
522    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
523      scheme and the corresponding test case (under front_relax dir). For now,
524      only available with Skew-flux form and not yet tested in realistic set-up.
525      adjoint: store directives updated, but gradient checks deteriorated,
526      so maybe GM/Redi adjoint is now broken.
527    o seaice adjoint
528      * add AREA, HEFF, HSNOW as control variable
529        (should not change lab_sea results)
530      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
531    o pkg/seaice:
532      * added computation of saltFlux in seaice_growth;
533        For time being, sea ice salinity is assumed constant
534        contribution of snow flooding to freshening of sea ice is neglected.
535        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
536        defaults to 0.0 in order to maintain backward compatibility.
537        Typical values for SEAICE_salinity are 4 to 10 g/kg.
538      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
539      * added SEAICE_availHeatFrac, which specifies fraction of surface level
540        heat content used to melt or grow ice
541      * commented out cap of HICE: it helps keep ice thinner
542      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
543      * applied OBCS T/S mask to HEFFM sea ice mask
544    
545    checkpoint59d
546    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
547     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
548     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
549    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
550     and change default value of parameter "GM_Small_Number";
551     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
552       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
553       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
554    o pkg/ecco: cost function when applying pkg/smooth to controls
555    o pkg/ctrl: add forcingPrecond run time parameter
556    o pkg/seaice:
557     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
558     - fix bug in metric terms of u-equation in LSR solver (implicit part),
559       changes verification/lab_sea
560     - rearrange implicit part of u-equation in LSR solver to make it easier to
561       read, understand, and debug. This causes changes at the truncation level.
562     - fix (serious) bug in the boundary conditions (sign error in the implicit
563       part) of the LSR solver. Changes all LSR results.
564     - fixed problem with HSNOW initialization to avoid thick snow when AREA
565       is initilized with small values - does not change lab_sea results.
566     - added HsnowFile initialization capability
567    o pkg/smooth: addition to model/src and pkg/ctrl so allow
568     initialization of pkg/smooth and application to control vector
569    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
570    o dependencies: pkg/profiles requires pkg/cal
571    o pkg/profiles:
572     - added option ALLOW_PROFILES_GENERICGRID
573         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
574         that interpolation information (grid points and coefficients) is provided
575         within the netcdf input files.
576         -> sample matlab scripts can be found in MITgcm_contrib/gael
577         that allow you to prepare netcdf input files.
578     - also modified: cleaner include statements, cleaner error print statements,
579       cleaner stops when error, and more tests of the netcdf input files consistency.
580    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
581    o pkg/seaice:
582     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
583       requires a new routine: seaice_diagnostics_fill.F
584     - make sure that seaice does not move if not forced (pressure replacement
585       method, Hibler and Ip, 1995), changes results
586     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
587     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
588       It is turned off by default (=-1.), because it changes the results.
589     - make it possible to read AREA from a file, too.
590    
591    checkpoint59c
592    o add S/R and diagnostics for oceanic mixed-layer depth
593    o move GMRedi call after all vertical mixing schemes (including KPP)
594    o pkg/thsice:
595     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
596      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
597    o pkg/obcs:
598     - bug fix for balance code
599    o pkg/seaice:
600      - allow values of SEAICE_elasticParm > 1
601      - add new parameter SEAICE_evpTauRelax as an alternative
602        to SEAICE_elasticParm
603      - make lsr boundary conditions free slip (by default), changes result
604      - add code for no slip boundary conditions for lsr
605      - set minimum of zeta to zero (and not 4e8) (changes results)
606      - add a cap on AREA after advecting AREA if seaice_growth is not called
607    o change calculation of Visbeck K:
608      - no longer depend on tapering scheme; instead, compute slope (limited
609        by GM_maxSlope). this is equivalent to what was comuted before with
610        clipping or linear tappering.
611      - fix vertical averaging (wrong by 1/2 level)
612      - leave the old version (but will not be maintained) within
613        #ifdef OLD_VISBECK_CALC / #endif
614      - update output of exp. ideal_2D_oce
615    o change error catch in calc_r_star to improve vectorization
616    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
617      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
618    o adjoint:
619      Re-organized adjoint checkpointing according to Matt Mazloff
620      (but with modifs/completions/cleanups)
621      Storing is now bundled into large arrays to optimized I/O
622      (and second step in cleanup of the_main_loop)
623    
624    checkpoint59b
625    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
626      - export/import (between ocean & coupler) fields needed for ocean DIC.
627    o pkg/seaice:
628      - get rid of three more exchanges seaice_calc_viscosities (required
629        different loop boundaries in seaice_lsr and seaice_ocean_stress)
630      - bug fix in seaice_ocean_stress (update of lab_sea required)
631      - reduce loop boundaries to necessary minimum also in seaice_evp
632      - go back to the old way of computing deltaC/Z as the adjoint likes that
633        better
634    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
635      passive tracer to an Age Tracer) + update output.txt
636    o pkg/exf:
637      - implement A-grid / C-grid selection for wind-stress input files.
638      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
639      for now, in exf_bulk_largeyeager04.F only :
640      - change implementation for case where windspeed + 2. components wind-stress
641        are read-in. AND use rhoConstFresh to convert evap.
642    o pkg/seaice:
643      - use correct EXCH_UV for wind-forcing (on A-grid).
644      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
645        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
646    o pkg/exf:
647      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
648      EXF_INTERPOLATION:
649      - merge global_with_exf/code version of exf_interp_read.F
650        to the main code ;
651      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
652        reading the file ; Important: This options needs to be defined to recover
653        previous code.
654        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
655      - no longer loose real*8 precision along the way when using exf_iprec=64.
656    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
657      - change discretisation of evp-solver in order to avoid another exchange
658        (changes lab_sea) and clean up a little
659      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
660        help the adjoint (this also changes the results slightly)
661      - add a few "_d 0" where they had been missing in seaice_evp.F
662      - cleaning up: remove unused seaice_calc_rhs.F
663    o pkg/exf: some cleaning-up:
664      - change various "constants" into runtime parameters
665      - cleaned-up Large&Yeager04 routine which should eventually
666        replace exf_bulkformulae.F (changed names of S/R and CPP)
667        and merged various ALLOW_ATM_WIND options
668     only used with thsice pkg (in thsice_get_exf.F):
669      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
670        which are used when useStabilityFct_overIce=TRUE (= the default)
671      - change default values of ice & snow emissivity and scale downward LW
672        by ice & snow emissivity.
673    o pkg/thsice:
674     fix few little problems, in thsice_calc_thickn.F:
675      - growth vertically (and not laterally) if iceFrac == iceMaskMax
676      - melt only laterally if hIce < hThinIce (as the comments say)
677      and in thsice_extend.F:
678      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
679      - start to form ice as soon as the minimum ice-volume is reachable.
680     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
681      and cpl_aim+ocn
682    o pkg/kpp
683     - move computation of surface related input fields to KPP into a new
684       subroutine kpp_forcing_surf.F
685     - remove wrong (within bi,bj loops) EXCH calls.
686     - little cleaning (add argument myThid in last position, cvs header ...)
687     - for now, fix conservation problem by exchanging KPPviscAz (may not
688       be the best fix)
689    o pkg/seaice
690     - check for inconsistent evp parameter/cpp-flag combination
691     - remove leftover errIO flat for obsolete name list error handling
692    o OpenAD
693     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
694    
695    checkpoint59a
696    o pkg/seaice: some parameter clarifications and a little bit of clean up
697    o pkg/thsice: rename run-time parameters:
698       himin       -> hIceMin
699       himin0      -> hThinIce
700       hihig       -> hThickIce
701       i0          -> i0swFrac
702       transCoef   -> bMeltCoef
703       frac_energy -> fracMelting
704      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
705       with default values (for now) that do not change the results.
706      remove old version of thsice vars advection in pkg/seaice.
707    o in FFIELDS.h:
708      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
709      - make pLoad & sIceLoad always available (but still only used if
710         ATMOSPHERIC_LOADING is #define).
711    o pkg/kpp: replaced _KPP_RL with _RL
712    o bug fixes for vertical diffusivity computations when both KPP and
713        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
714        are no longer updating the vertical diffusivity array
715        (passed as argument) but are (re-) setting those arrays.
716    o pkg/seaice: fix bug in evp solver, while doing that
717      - change (improve?) discretization of stress computations for both
718        cgrid-lsr and evp solver
719      - add a new routine to compute strain rates
720      - the above changes lab_sea results
721      - add no slip conditions for evp solver (off by default), lsr-version
722        may follow
723      - fix exchange for shear at Z-points (does not change lab_sea)
724      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
725        (to force the user to pick a time step since there is not "safe" way
726        of choosing it)
727      - add principal stress diagnostics
728      - rearrange fields for evp a little to avoid having to call a: too many
729        exchanges and b: exchanges for stress trensor components which we do
730        not have.
731      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
732        of evp, complete rewrite for lsr case (latter is does not yet work
733        in all cases)
734    o pkg/kpp: add code to have mixing in shelf ice caverns
735      - add myThid to all kpp routines (long overdue)
736    
737    checkpoint59
738    o pkg/exf:
739      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
740        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
741      - move exf header files from lower_case.h to UPPER_CASE.h ;
742        add missing cvs Header & Name
743      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
744      - add namelist param. selectStressGridPosition, exf_monFreq
745      - retire many _CLIM routines, and remove data.exf_clim
746        + params moved to data.exf
747        + climsst, climsss now handled by exf_set_gen, i.e.
748          climss?period=0 refers to constant field,
749          climss?period=-12 to monthly forcing
750      - split up namelists in data.exf
751    o pkg/seaice:
752      - remove seaice_exch and seaice_exch_uv
753      - remove superfluous exchange of theta
754      - add myThid to seaice_budget_ocean/ice
755      - add new interface for atmospheric wind forcing (C-grid only)
756        + new routine
757        + two new field (taux, tauy for stress over ice)
758        + removed one global field (DAIRN) for C-grid case only
759    o pkg/thsise
760      - 2nd set of modifs for thsice adjoint in conjunction with exf
761    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
762    
763    checkpoint58y_post
764    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
765      vertical diffusivity, similar to that in MOM4; turned on using
766      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
767      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
768    o Added capability for 3D specification of background vertical diffusion
769      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
770      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
771      "data" file that contains the 3D vertical diffusivity coefficients.
772    o ice dynamics (pkg/seaice) with thsice thermodynamics:
773      - add code within pkg thsice to advect & diffuse sea-ice fields
774      similar to (and will replace) what has been added in  seaice_advdiff.F,
775      but: - conserving Mass, Heat & Salt.
776           - better when using non-linear advection scheme (not yet fully tested)
777           - can also be used in atmospheric set-up (for now, only the diffusion).
778    
779    checkpoint58x_post
780    o IO option for global-file compact format:
781      - add options when generating topology (utils/exch2/matlab-topology-generator)
782      - add I/O capability (pkg/mdsio).
783      - adapt utils/matlab/rdmds.m to read this format.
784      for now long-line format not yet supported by pkg/mdsio (& exch2).
785    o shelfice: add a few diagnostics
786    
787    checkpoint58w_post
788    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
789      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
790      (and replace horiVertRatio in NH code).
791      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
792                         and tutorial_plume_on_slope (sensitive to truncation)
793    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
794      directly to drive seaice model (C-grid only)
795    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
796     - reintroduce computation of wind from stress,
797     - compute tau (in exf_bulkformulae.F) from windstress averaged to
798       mass points to avoid tau = 0
799     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
800    o rdmnc.m: make it work with "global" files created with gluemnc
801    o rdmnc.m : some improvements in dealing with singleton dimension
802      (tested on all testreport mnc output files).
803    o genmake2: disable pkg/profiles if netcdf test fails.
804    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
805    o move call to cal_readparms up to make calendar parameters/variable available
806      to all packages
807    
808    checkpoint58v_post
809    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
810      useDynP_inEos_Zc tested.
811    o pkg/exf: changes to properly interpolate/mask/scale initial fields
812    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
813      and portions thereof.  See read_cs.txt for description and examples.
814    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
815      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
816      following the great-circle arc between those 2 points.
817    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
818      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
819    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
820     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
821     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
822     - still needs work (not working with some options ; efficiency to improve)
823       and serious testing.
824     - use this scheme for temperature & salinity in 2 advection test exp.:
825       advect_xy & advect_xz, respectively.
826    
827    checkpoint58u_post
828    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
829    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
830    o testreport: add option "-skipdir" to skip some test.
831    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
832      momentum calculation.
833    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
834    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
835      remove checkpoint.F and the_correction_step.F (no longer used);
836      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
837    o add option (linFSConserveTr) to correct for tracer source/sink due to
838      Linear Free surface
839    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
840    o pkg/thsice: fix reading mnc-pickups
841    
842    checkpoint58t_post
843    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
844    o pkg/mdsio:
845     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
846       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
847       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
848     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
849     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
850       either MDS_READ_FIELD or MDS_WRITE_FIELD )
851     - new S/R (to replace MDSWRITEMETA), which allows to write more
852       informations (variable names, time ...) to meta files.
853     - modify rdmds.m to give back the meta file content.
854    o pkg/diagnostics: change vertical interpolation to be safer, and more
855       flexible (define p-levels to interpolate to in data.diagnostics);
856      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
857       diagnostic pointer.
858    o pkg/seaice: more cleaning up of seaice_growth, added many comments
859    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
860    o fix multi-category seaice:
861     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
862       SEAICE_MULTICATEGORY
863     - fix short wave heat flux
864    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
865       and allow to use EVP solver. Change forward lab_sea: test both EVP
866       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
867    o Initial check-in of lab_sea adjoint
868      (very similar to natl_box_adjoint/code_seaice)
869      * used C-grid and EVP solver
870      * used KPP, GM/Redi
871      * uses inAdExact=.TRUE.
872      * gradient checks fail for both ADM and TLM
873        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
874        f.d. gradients actually seem more problematic than ADM, TLM gradients;
875        issue is related to forward mismatch between g77 an ifort
876    o pkg/seaice: overhaul of thermodynamics
877     - growth.F and groatb.F are replaced by new routine seaice_growth.F
878     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
879     - move a few global fields out of SEAICE.h into seaice_growth.F and
880       make them 2D (FICE/QNETO/ ...)
881     - remove FO (it is the same as QNETO)
882     - introduce a few local fields to avoid modifying external fields such
883       as atemp, etc.
884    
885    checkpoint58s_post
886    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
887      changed exf_set_gen.F so that
888        genperiod=0 means input file is one time-constant field and
889        genperiod=-12 means input file contains 12 monthly means
890    o CG2D: use pre-computed solver main-diagonal (stored in common block);
891      this affects truncation error ; generate new output file for exp. which
892      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
893        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
894        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
895        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
896        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
897        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
898    o start implementation of deep-atmosphere and anelastic formulation
899    o verification: remove 2nd copy of input files and use script "prepare_run"
900      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
901    o mom_common/vecinv/fluxform: fix a few initialisation isssues
902    o profiles: fix for multithreaded case
903    
904    o diagnostics: rename few diags:
905      s/'PRESSURE'/'RCENTER '/g
906      s/'TICE    '/'oceFreez'/g
907      s/'TAUX    '/'oceTAUX '/g
908      s/'TAUY    '/'oceTAUY '/g
909      s/'SWFLUX  '/'oceQsw  '/g
910      s/DIFx/DFxE/g
911      s/DIFy/DFyE/g
912      and add few ocean-forcing diagnostics:
913      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
914    o modifications to pkg/seaice/growth.F and budget.F, which change results of
915      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
916      as actual snow thickness.  It now refers everywhere to effective snow
917      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
918    
919    checkpoint58r_post
920    o modifications to pkg/seaice/growth.F, which change results of
921      lab_sea experiment: fixes pertain to melting snow over open water, to
922      masking EVAP under sea ice, and to using the correct AREA variable for
923      computations of EVAP, PRECIP, HSNOW, and GHEFF
924    o add ability to read bathy, salt, and theta using MNC (off by def)
925    o add flooding algorithm and advection of HSNOW for pkg/seaice;
926      both are turned off by default and do no change any results
927    o seaice advection with pkg/thsice: a step toward the use of non-linear
928      advection scheme, but #ifdef or commented out for now (requires more EXCH).
929    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
930      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
931      in natl_box (affects results @ truncation level: update output.txt)
932    o multi-threading and IO:
933      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
934      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
935        (needed to work with SingleCpuIO): tested in all verif. exp.
936    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
937      affects the results (but none of the verification test uses this scheme).
938    o Adding some pkg/diagnostics capability to pkg/seaice
939      (will certainly be subject to changes)
940    o ctrl: adding new control variables:
941      lwflux, lwdown, evap, snowprecip, apressure, runoff
942    
943    checkpoint58q_post
944    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
945      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
946      high_res_cube configuration by 4% on Columbia.
947    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
948      add (in global_with_exf/code) a version of EXF_INTERP_READ without
949      dynamical allocation (seems to work in multi-threaded).
950    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
951      single CPU io) so that TAF does not have to see EESUPPORT.h
952    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
953    
954    checkpoint58p_post
955    o obcs: stop if obcs is used with useCDscheme = .true.
956    o shelfice:
957     - fix a sign error so that no slip at shelfice interface works
958     - remove stop for combination non-hydrostatic code and shelfice. That does
959       not mean, that the results are correct, but at least they are numerically
960       stable
961    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
962    o added adjoint exch routined for all exch*3d* routines
963      and updated flow directives
964    
965    checkpoint58o_post
966    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
967      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
968    o change controling S/R for writing pickup file (new S/R do_write_pickup)
969      and clean-up reading/writing of pickup files.
970    o fix local version of read/write pickup (NH part) in rotating_tank/code
971    o simplify EXCH interface:
972     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
973     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
974    o added the regrid package
975    o shelfice:
976     - add a simple boundary layer scheme to reduce noise
977     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
978    
979    checkpoint58n_post
980    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
981       local variable (not in common block).
982    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
983      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
984      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
985        to work with SingleCpuIO.
986    o add "_d 0" to real constant of pkg/cfc subroutines ;
987       update exp. cfc_exemple & tutorial_cfc_offline output files.
988    o multi-threading and IO:
989      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
990        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
991      - barrier before and after reading.
992      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
993      - avoid using MDS_WRITELOCAL for LAND pkg output.
994      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
995        common-block variables ; Allows multi-threading with master-thread IO.
996    o change default MAX_NO_THREADS from 32 to 4 ;
997      and stop cleanly when MAX_NO_THREADS is too small.
998    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
999    
1000    checkpoint58m_post
1001    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1002       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1003    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1004       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1005       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1006    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1007        add MITgcm_tutorials (= code + all the tutorials)
1008    o ecco, option to compute cost for total ssh (mean+anom)
1009    o consistent with addition of ptracer and ssh in pkg/profiles
1010    o profiles: adding ptracer and ssh
1011    o testreport: change multi-test output-file name
1012      (from output.txt.{name} to output.{name}.txt)
1013    o profiles: now ok for mutli-tiles case
1014    o seaice: add 4 parameters for different advection schemes for area,
1015      (effective) seaice thickness, enthalphy, and snow height. Their default
1016      is the standard parameter SEAICEadvScheme
1017    o calc_gw:
1018     - add cosFacU in zonal viscous flux (harmonic.visc.).
1019     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1020       of tutorial_plume_on_slope.
1021    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1022    o calc_gw: true flux-form, account for horizontal grid spacing.
1023      update rotating_tank results, but not plume_on_slope (affected at
1024      truncation level, 11 digits).
1025    
1026    checkpoint58l_post
1027    o calc_gw:
1028     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1029     - remove side-drag for now (need to fix it); update plume_on_slope results.
1030     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1031    o commit code to make SST/SSS weights spatially variable
1032      (based on either variable in-situ or variable initial T/S weights)
1033    o pkg/ecco:
1034      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1035        now based on horizontally varying weights wthetaLev, wsaltLev
1036      * cost_averagesflags now returns year indices in addition to day, month
1037      * sflux balance is performed on annual basis
1038        (sflxumm, sfluxmm2, bal_sfluxmm)
1039      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1040        including separate counting and multipliers
1041    o pkg/rbcs
1042      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1043    
1044    checkpoint58k_post
1045    o testreport:
1046     - always build in dir. "build" (if not there, mkdir build instead of building
1047       & running in input)
1048     - run in dir run (if it exists), in build otherwise.
1049     - call prepare_run (if input/prepare_run exists)
1050     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1051    o pkg/exf modifications to interpolation and rotation routines for more
1052       reasonable treatment of North Pole singularity: for tracers North Pole
1053       value is set to northernmost zonal-mean value, for zonal velocity it is
1054       set to zero, and for meridional velocity it is set to northernmost value.
1055    o pkg/exf/exf_check_range.F
1056     - add tile index to diagnostics and move stop statement to the very
1057       end of the routine.
1058    o pkg/diagnostics: (diagnostics_main_init.F)
1059      define title of isomorphic variables according to the current config.
1060    o pkg/thsice with pkg/seaice dynamics:
1061    - fix domain of computation (interior only, required for exf) and do exchanges
1062    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1063    o towards a standard way of dealing with multi-threading in MONITOR
1064      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1065    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1066       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1067    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1068    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1069    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1070       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1071    o tracer advection:
1072     - clean-up and simplify calc_common_factors.F
1073     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1074       advection subroutine (but still not used within DST advection S/R)
1075    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1076    
1077    checkpoint58j_post
1078    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1079      from file (collects calls previously in FORWARD_STEP)
1080    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1081    o adjoint store dir. adjusted accordingly
1082    o genmake2
1083      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1084    
1085    checkpoint58i_post
1086    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1087      on wind stress (SEAICEstressFactor defaults to 1.)
1088    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1089      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1090    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1091      on CS-grid: no longer loosing mass.
1092    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1093    o pkg/ggl90: fix sloppy output and fix a bug
1094    o pkg/seaice: added SEAICEuseEVPpickup parameter
1095      - Set to false in order to start EVP solver with
1096        non-EVP pickup files when using SEAICEuseEVP
1097      - fix sign error in diffusion in seaice_calc_rhs
1098    
1099    checkpoint58h_post
1100    * Modifications for bottom topography control
1101      o replace hFacC by _hFacC at various places
1102      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1103      o add non-self-adjoint cg2d_nsa
1104      o update autodiff support routines
1105      o re-initialise hfac after ctrl_depth_ini
1106      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1107    * Adding verification for 5x5 box (4-layer) bottom topography control
1108    
1109    checkpoint58g_post
1110    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1111       used for mean seasonal cycle, mean diurnal cycle); add an example
1112       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1113    o pkg/ggl90:
1114      - add parameter (minimum surface kinetic energy)
1115      - fix bug (avoiding division by zero)
1116    o couple pkg/thsice to pkg/seaice:
1117      - modify advection in seaice to accomodate new scalar fields to be advected
1118      - only muliDimAdection scheme work with seaice/thsice
1119      - mapping of thsice-variables to seaice-variables, back and forth
1120      - does not break the verification experiments, but does not give the
1121        desired results either
1122    o pkg/seaice
1123      - make (default) second order advection a bit less confusing?
1124    
1125    checkpoint58f_post
1126    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1127      to pkg/seaice):
1128      - new routines thsice_map_exf and thsice_get_exf provide the interface
1129      - add an additional formal parameter to thsice_solve4temp
1130    o pkg/exf:
1131      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1132      - correct Stefan-Boltzmann constant
1133      - new parameter for longwave surface emittance
1134      - separate some stuff from exf_bulkformulae into new routines  
1135        exf_radiation, exf_wind
1136      - add new parameters and constants: longwave emissivity for ocean, ice
1137        and snow, evaporation parameters over ice
1138      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1139        either wind from stress or stress from wind
1140    o pkg/thSIce:
1141    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1142    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1143       and THSICE_CALC_THICKN
1144    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1145    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1146      to make debugging easier.
1147    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1148    o pkg/bulk_force:
1149      - clean-up comments and parameters ;
1150      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1151    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1152      generate new output for test-experiment: aim.5l_cs.thSI
1153    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1154      testreport accordingly
1155    
1156    checkpoint58e_post
1157    o SEAICE_CGRID adjoint done
1158    o R_STAR adjoint implemented.
1159      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1160      * need to sort out init. of h0facc, etc.
1161    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1162      to be able to use it in pure forward.
1163    
1164    checkpoint58d_post
1165    o upgrade simple test-experiment to tutorial example:
1166     step.1: duplicate the experiment and (step.2) will remove the old copy.
1167      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1168      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1169      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1170      tutorial_global_oce_biogeo    <- copy of dic_example
1171      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1172      tutorial_plume_on_slope       <- copy of plume_on_slope
1173      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1174      tutorial_global_oce_optim     <- empty for now (David ?)
1175      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1176     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1177    o correct a sign problem in cost_scat.F
1178    o obcs and ptracers: fix boundary conditions for advections schemes
1179      with larger stencil
1180    o thsice adjoint: start
1181    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1182      completeness
1183    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1184      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1185    o ptracers adjoint:
1186      * avoid extensive recomputatations
1187      * fix missing re-init. of gptr (missed by TAF)
1188    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1189      me to turn off the excessive output to STDOUT that this package produces
1190    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1191      and add those terms in Vector-Invariant formulation.
1192    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1193      if the control period (xx_hfluxperiod etc) is 0
1194    o in profiles pkg, clean routines and fix details
1195    o in ecco pkg, reading ssh data:
1196      fix problem in case the model does not start at iter0=0
1197    o fix mnc-pickup/restart for ptracers
1198    o new package prifiles:
1199      code to compute profile-based cost by Gael Forget
1200      (modifs in ecco, ctrl, autodiff)
1201    o Benign bug fix in initialization (spotted by M. Mazloff) of
1202      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1203    
1204    checkpoint58c_post
1205    o adjoint: finish NLFS adjoint and provide reference output in
1206      verification/global_ocean.90x40x15/results_ad_nlfs
1207    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1208      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1209      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1210      with SEAICE_CGRID defined.
1211    o move calendarDumps from "data" to "data.cal" and clean-up the code
1212      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1213    o add useEXF & useCAL flags (for now, set in hard-coded way)
1214    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1215      (were missing in NH mode, and wrong in quasihydrostatic mode).
1216      waiting for Chris updated version of calc_gw to add those CALLs.
1217    o fix bug in quasihydrostatic S/R ;
1218      add a test for this option: global_ocean.90x40x15.qshyd
1219    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1220      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1221    o add on/off flag useOffLine for package OFFLINE
1222    o seaice:
1223      - modify advection so that it works also on the C-grid
1224      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1225        problem in multi-tile runs with C-grid
1226      - add flags for clipping ice velocities and/or masking solver forcing
1227      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1228        C-grid solver
1229      - added a few comments to seaice_diffusion.F
1230      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1231        are now exclusive)
1232      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1233        required re-ordering the code a little:
1234       + make DAIRN global variable (defined in SEAICE)
1235       + move computation of the viscosities eta and zeta into a new separate
1236         routine (because I need to recompute them in seaice_ocean_stress.F)
1237    
1238    checkpoint58b_post
1239    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1240      update output.txt of exp. aim.5l_cs.thSI
1241    o various mnc cleanups and improvements:
1242      + shrink lookup tables by factor of ~4
1243      + better error reporting when running out of lookup space
1244      + able to handle longer path/file names (up to 500 chars)
1245    o adjoint:
1246      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1247      - TBD: "hidden" mom_vecinv recomp. in dynamics
1248    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1249     (allow to differentiate between forcing components using new integer flags:
1250      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1251     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1252    o ecco
1253      - enable trend removal from SSH anomaly obs.
1254    o adjoint
1255      - a fix for PmEpR when #undef EXACT_CONSERV
1256      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1257      - try to fix "hidden" recomp. in forward_step for NLFS
1258        (NLFS seems broken sometimes after I checked it in)
1259    o seaice:
1260     - add c-grid version of the dynamic solver:
1261       + three new routines that are the c-grid substitute lsr, dynsolver
1262         and ostres
1263       + put a few fields that were local to dynsolver into global common
1264         blocks, so that I can move the computation of stresses etc into
1265         seaice_lsr (saves coding but may break the adjoint).
1266     - replace more hardwired parameters by runtime parameters
1267     - add ice masks that mask the rhs of the implicit solvers where there
1268       is no ice (commented out in seaice_dynsolver, because i am not sure
1269       if this works properly), eventually this should replace the clipping
1270       of ice velocities in seaice_dynsolver to +/-40cm/s.
1271    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1272      include it only where its needed
1273    o move balancing of fluxes before the call of external_forcing_surf
1274    o seaice:
1275      - correct units of turning angles (now they are really in degrees)
1276      - move computation of GWATX/Y out of main routine into dynsolver
1277      - initialize GWATX/Y in seaice_init
1278    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1279      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1280    o seaice: add runtime flags for turning angles (default to zero)
1281    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1282      and trend from exf forcing and ctrl control adjustments
1283    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1284      (since checkpoint57x_post)
1285    o change the default rotation period to 86164.s = the Earth rotation
1286    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1287      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1288    o seaice advection: add code for choosing between the default (2nd order
1289      central differences) and multiDim advection schemes provided by
1290      pkg/generic_advdiff
1291    o seaice:
1292      - removed all references to SEAICE_GRID.h fields from
1293        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1294        (cubed-sphere configuration will change a little)
1295      - grid computations in seaice_init are obsolete now.
1296      - cleaned up code a little so that is easier to read (hopefully).
1297      - added new (better?) discretizations of default advection and diffusion
1298        (turn on with SEAICEuseFluxForm)
1299      - replace 1 in 3d global fields by kSurface in growth.F
1300      
1301    checkpoint58a_post
1302    o seaice:
1303      - bug fix in advect.F
1304    o shelfice:
1305      - separate shelfice load anomaly from pload (breaks with time
1306        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1307        Its default is 0., but it may be computed more cleverly from (unknown)
1308        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1309        done offline. A good approximation of the pressure load anomaly is
1310        necessary to avoid large initial adjustment processes underneath
1311        deep-reaching shelfice.
1312      - small fix in ISOMIP shelfice_thermodynamics
1313      - add more sophisticated thermodynamics of Hellmer (1989), this is
1314        now the default
1315      - give a few constants more intuitive names
1316    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1317      if bulk formulae are used in long integration (especially EmPmR). Turn
1318      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1319      if balancePrintMean, the imbalance that is substracted is printed to
1320      STDOUT.
1321    o fix bug (typo) in obcs_apply_eta.F
1322    o add a new package shelfice which enables us to model the circulation
1323      underneath shelf-ice with draughts of hundreds of meters.
1324     - works
1325     - to do: + include improved thermodynamics
1326              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1327                instead of new field kTopC
1328              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1329                instead of new field R_shelfIce and new code in ini_depth.F
1330                and ini_mask_etc.F?
1331              + adjust vertical mixing schemes?
1332    o seaice pkg:
1333     - add a cpp-flag to include a simple formula for a salinity dependent
1334       freezing point of sea water at the surface
1335     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1336       meridional stresses are now different (and hopefully correct)
1337    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1338       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1339       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1340    o pkg/diagnostics: add options and parameters for regional-statistics
1341       diagnostics ; define regions by reading a region-mask from a file
1342       (might add other options later)
1343    o pkg/bulk_force:
1344     - add option and parameters to use AIM surface-flux formulae.
1345     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1346       others forcing fields (defined in PARM05, parameter file "data") are loaded
1347       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1348     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1349     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1350     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1351       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1352     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1353    
1354    checkpoint58
1355    o add "--embed-source" option to genmake2 which, when the supporting
1356      tools can be compiled (as determined by genmake2) will turn on the
1357      embed_files package which then embeds the entire MITgcm source code
1358      (*.[fFhc] + Makefile) used for the build within the executable
1359      - requested by CNH but off by default
1360      - adds a paltry <9MB to the mitgcmuv executable in most cases
1361      - only writes the output when useEMBEDSRC in eedata is true
1362    o clean up 3-dim. relaxation codes:
1363      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1364      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1365      * Thanks to Tom Haine for testing!
1366    
1367    checkpoint57z_post
1368    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1369      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1370    o fix the pickup behavior for obcs in combination with ptracers
1371    o fix a bug in ptracers_external_fields_load
1372    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1373      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1374    o transfered surface NH pressure to eta field (if exactConserv).
1375    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1376         and update lab_sea output.txt file.
1377    o completing 3-dim. relaxation code: additional term
1378         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1379      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1380      * At compile time, in "EXF_OPTIONS.h" set
1381          #define  ALLOW_CLIMTEMP_RELAXATION
1382          #define  ALLOW_CLIMSALT_RELAXATION
1383      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1384          tauThetaClimRelax3Dim = 15552000.0,
1385          tauSaltClimRelax3Dim  = 15552000.0,
1386      * 3 cases:
1387          1) Use a constant-in-time 3-dim. field
1388          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1389          3) Real-time relax. to time-evolving prescribed field
1390    o Adding Laplacian-type smoothness constraint on
1391      initial and boundary (forcing) controls (ic, bc)
1392      * enable at compile-time via
1393        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1394      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1395      * Absolute scale somewhat unclear so far
1396      * no area weighting was included since no other cost term does so far
1397    
1398    checkpoint57y_post
1399    First step for a NLFS adjoint
1400    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1401    o new init. routines for calc_r_star, calc_surf_dr
1402    o still need to deal with ini_masks_etc
1403    o testreport seemed happy
1404    checkpoint57y_pre
1405    
1406    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1407    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1408    o add new offset feature to offline pkg (plus minor cleanup)
1409    o cfc fixes for final year of integration
1410    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1411      be in GCHEM_OPTIONS).
1412    
1413    checkpoint57x_post
1414    o fix testreport Pb in multiple test experiment.
1415    o cleanup our namelist syntax in verification:
1416      - make it more F95 standards compliant (some work still needed)
1417      - allows the vast majority of our tests to work with gfortran
1418    o Non-Hydrostatic:
1419     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1420     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1421    o Allow to apply AB on T,S rather than on AB(gT,gS):
1422     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1423     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1424       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1425     - need a "clever" read_pickup to restart from the other AB formulation
1426    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1427    o remove some unused variables (reduces number of compiler warnings)
1428    o adjoint
1429      * Disable useVariableViscosity for adjoint for time being
1430        (there are a number of extensive recomputations)
1431      * Initialize certain variables needed for adjoint
1432    
1433    checkpoint57w_post
1434    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1435                 fix the singleCpuIO RS version of MDSWRITEFIELD
1436       and add a WARNING if using globalFiles=T with multi-processors.
1437    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1438      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1439    o tracer advection scheme:
1440      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1441       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1442       was not very convenient).
1443      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1444       (further tests needed for the implicit DST & Flux-Limiter schemes).
1445    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1446      and sRef for convenience, handy, when you want to initialize
1447      ptracers in a large domain with a constant non-zero value. Also,
1448      untangle ptracers_init.F a little.
1449    
1450    checkpoint57v_post
1451    o change dome exp. to use variable viscosity in side-drag terms.
1452    o remove all the files from the cfc_offline test since they are now
1453      incorporated into tutorial_cfc_offline which has been producing
1454      identical results for a few days of testing
1455    o add new parameter: sideDragFactor to enable half-slip-side BC
1456      and change side-drag S/R to use viscosity from mom_calc_visc
1457      (can switch back by setting sideDragFactor=0.); affects results at
1458      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1459       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1460    o vorticity & strain are now computed without masking, to account for
1461      no-slip-side BC in variable viscosity calculation ; mask is applied
1462      anyway later on, before computing advection/coriolis terms.
1463    o modify exp4 to test new obcs support for reading from external files
1464      and for passive tracers
1465    o fix behavior of ptracers_monitor when monitor output is written to a
1466      netcdf-file; still not independent of monitor.F (writes in the same
1467      file).
1468    o change default value of tRef (put a uniform, meaningful value for ocean
1469      & atmos) and initialize sRef (was missing, as Martin mentioned).
1470    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1471      to be proportional to enstrophy dissipation length.  Thus,
1472       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1473      This is now consistent with Smagorinsky and with the manual.
1474    
1475    checkpoint57u_post
1476    o OBCS and PTRACERS: add open boundary support for passive tracers
1477      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1478        OB-values from file; this is not different from the way theta and salinity
1479        are treated
1480      - however, Orlanski-radiation conditions are not supported, and the model
1481        will stop if you use pTracers and Orlanski at the same time.
1482      - beefed up the rountine obcs_external_fields_load: now only those open
1483        boundary values are overwritten with values from files for which there
1484        are really files, otherwise the OB-fields remain untouched. This makes
1485        it possible to use different OBs at different ends of the domain (as
1486        with EXF)
1487    o reduce number of exch calls in shap_filt (s2).
1488    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1489      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1490    
1491    checkpoint57t_post
1492    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1493    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1494      same truncation, independent of the face number: affects affects several
1495      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1496    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1497      note that biharmonic viscosity + no-slip was not tested in any experiment.
1498    o fix bug in non-linear free-surf side-drag ; generate new output for
1499      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1500    o make mnc honor the writeBinaryPrec flag for most kinds of output
1501    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1502    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1503      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1504    o add brackets in multi-terms sum to get same truncation, independent of
1505      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1506      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1507    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1508      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1509      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1510      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1511      Suggested values of viscosity parameters found in mom_calc_visc.
1512      Many new viscosity diagnostics available.
1513    
1514    checkpoint57s_post
1515    o Add clearing-house for viscosity calculations, mom_calc_visc and
1516      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1517      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1518      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1519      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1520      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1521      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1522      ViscAhStrain and viscAhTension are now retired.
1523    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1524    o In response to JMC's bug report, genmake2 now ignores any soft-links
1525      that it finds in the *current* directory when searching for files.
1526      Soft-links found in any other source directories will still work as
1527      they did before.
1528    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1529      a C routine to unlimit the stack size
1530    o mnc-ify pkg/aim snapshot vars
1531    o mnc-ify pkg/land as requested by Daniel
1532    o various changes to mnc including:
1533      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1534      - output can now be grouped so that all files within a group
1535          change the ITER portion of their names in lock-step together
1536      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1537          and works with both EXCH1 and EXCH2 (but needs more testing)
1538      - writing works for all verification test cases w/ g77 on Linux
1539    
1540    checkpoint57r_post
1541    o make MNC variable initialization happen earlier
1542    o add diagnostics for (almost) each term of the momentum Eq.
1543    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1544    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1545    o remove MINIMAL_TAVE_OUTPUT option ;
1546      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1547    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1548      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1549    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1550    o add time-dependent SST, SSS control
1551    o cost terms in ecco/ modularized (new cost_generic.F)
1552    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1553    o new infrastructure for seaice model vs. obs misfits in seaice/
1554      * driver from the_main_loop.F is seaice_cost_driver.F
1555      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1556      * gradient check in Exp. 6a of natl_box_adjoint/
1557    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1558      (see README file)
1559    
1560    checkpoint57q_post
1561    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1562    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1563      - bug was reported by Jean-Michel and Ian Fenty
1564    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1565      update exp. cpl_aim+ocn output.
1566    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1567      Needed for high-res. runs with large global files
1568      to be able to limit tapelev size
1569    o Changed some tests for adjoint:
1570      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1571      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1572      * global_ocean.90x40x15/ back to default 3-level checkpointing
1573    o Modifications to enable scripted COMMON to MODULE conversion
1574      * verification/OpenAD/code/ has necessary scripts and description;
1575      * converts, compiles and runs successfully;
1576    
1577    checkpoint57p_post
1578    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1579    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1580      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1581    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1582    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1583      (was already the case for dissipation with mom_vecinv,
1584       and also the case for grad.PhiHyd when staggered-timeStep)
1585      This will allow to put dissipation out-off the AB time-stepping.
1586     Unfortunately, affects truncation error. Update output of exp. that "fails"
1587      (cg2d matching number) and leave the others for later: front_relax(10),
1588      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1589      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1590    
1591    checkpoint57o_post
1592    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1593      (2) its ready to be documented during the 20050801 DocFest
1594    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1595      for ideal_2D_oce and lab_sea on linux_ia32_g77
1596    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1597      in global1x1_tot/code_seaice_adj to access indices 32, 33
1598      (worth another tag)
1599    
1600    checkpoint57n_post
1601    o adding precip control xx_precip 32
1602    o adding swflux control xx_swflux 33
1603    o Replacing 10 forcing penalty cost routines by 1 generic.
1604    o Implementing partitioning in time-mean and variable adjustment
1605      for atmos. state.
1606    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1607    o in natl_box_adjoint:
1608      * updated exp 1 to 10
1609        (but does not have time-mean vs. variable split results yet)
1610    o updated global1x1/*_seaice_adj/
1611      to incorporate latest changes
1612    o enable useSingleCpuIO for mdsio vector routines
1613      (applies in particular to tapelev I/O)
1614    o removed inefficient K-loop in all active_file*control*.F
1615    
1616    checkpoint57m_post
1617    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1618      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1619    o pkg/exch2: filling of face-corner halo regions is optional
1620      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1621    
1622    checkpoint57l_post
1623     tag before updating tutorials (pre-release-2)
1624    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1625       for output and interpolation of input fields onto model grid)
1626    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1627       Affects results of exp. rotating_tank ; update output.txt.
1628    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1629          and taking the square quantity and/or using a fraction-weight field.
1630    o fix aim_diagnostics_init.F mate numbers.
1631    o add mnc output capability to diagnostics/diagstat and update
1632      our cvsignore files for the ACSII output generated
1633    
1634    checkpoint57k_post
1635    o lab_sea now uses diagnostics package and provides a suite of
1636      new EXF diagnostics output.
1637    
1638    checkpoint57j_post
1639    o exf
1640      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1641        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1642        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1643      * extended diagnostics output
1644        - now includes all EXF variables
1645        - hs, hl moved to common block
1646        - separate S/R for diagnostics, called after ctrl vector is added
1647        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1648        - EXFqnet contains true Qnet (i.e. includes qsw)
1649      * updated verif. lab_sea, global_with_exf
1650      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1651        to ensure that diagnostics sees a true EXFqnet
1652    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1653    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1654      several times with different frequencies.
1655    o mnc-ify the thsice package as requested by Daniel Enderton
1656      - the monitor--MNC output needs work
1657      - many attributes need to be added (most are currently blank)
1658    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1659      - many attributes need to be added (most are currently blank)
1660    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1661    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1662    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1663      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1664         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1665    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1666     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1667    
1668    checkpoint57i_post
1669    o Diagnostics package was changed: diagnostic allocation is now deactivated
1670      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1671    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1672      add 1rst Order upwind vertical Shear.
1673    o add a quick fix for A/B checkpointing in OFFLINE mode
1674    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1675      end-run around the C/Fortran linking horror in eesup/src/timers.F
1676    o added pkg/runclock: allows user to terminate run based on wall clock
1677    o added non-hydrostatic scaling parameter: nh_am2
1678    o pkg/my82: futile attempt to make results compiler-independent by adding
1679      some "_d 0", etc. no effect.
1680    o for mnc output, fill the 'T' coordinate var with myTime and create a
1681      separate 'iter' variable for iteration count
1682    o pkg/diagnostics:
1683      add new capability: output of Global/Regional & per-level statistics ;
1684      tested against monitor output (including land & thSIce) on various exp.
1685    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1686    
1687    checkpoint57h_done
1688      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1689      data.diagnostics, data.gchem, data.ptracers) is done.
1690    
1691    o pkg/diagnostics: prepare for Global/Regional statistics.
1692      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1693    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1694      and rename it: DIFFERENT_MULTIPLE
1695    
1696    checkpoint57h_post
1697    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1698    o pkg/diagnostics: change output frequency, now in seconds (instead
1699      of Nb of iterations). This requires to change data.diagnostics.
1700    checkpoint57h_pre
1701    
1702    o in mnc, let the user create the output dir if both mnc_outdir_date
1703      and mnc_outdir_num are false
1704    o add fflags() to pkg/diagnostics which allows one to specify, on a
1705      per-file basis, the file precision [default behavior is unchanged]
1706    o added diagnostics to pkg/kpp, including computation of mixed layer
1707      depth based on a temperature/density criterion
1708    o updated verification/natl_box to test the new pkg/kpp diagnostics
1709    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1710    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1711    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1712      not mnc -- this mistake was found by JMC and is now corrected
1713    
1714    checkpoint57g_post
1715    o add Adams-Bashforth 3rd Order time stepping:
1716      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1717      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1718    checkpoint57g_pre
1719    
1720    o make lambda[Theta,Salt]ClimRelax spatially varying
1721      (default remains spatially uniform constant based on tau)
1722    o added new control variables
1723      * init. uVel, vVel, etanN
1724      * lambda[Theta,Salt]ClimRelax
1725    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1726      (suggested by G. Forget)
1727    
1728    checkpoint57f_post
1729    o add parameter "baseTime" = model base time = time at iteration zero
1730      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1731      account for baseTime shift
1732    o move Coriolis arrays from PARAMS.h to GRID.h
1733    checkpoint57f_pre
1734    
1735    o mnc-ifying the seaice package
1736    o introduced an alternative length scale calculation for use in the limiting
1737      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1738    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1739    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1740      as well as grad(vort3).  Made it compatible with both approximate form
1741      for the cubed sphere and full form of these gradients.  Added flag
1742      useFullLeith to select between approximate and full form.  
1743    o add "d0" in getcon.F to reduce differences between compilers/platforms
1744      update output.txt of exp. fizhi-gridalt-hs
1745    o change port_rand funtion to allow to set the seed.
1746    o fix obscure MNC bug involving conversion between reals and integers
1747      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1748        new version is now more standards-compliant
1749    o adjoint-related modifications
1750      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1751      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1752      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1753    
1754    checkpoint57e_post
1755    o Adding eddy stress controls a la Ferreira et al.
1756    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1757    
1758    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1759      update output.txt of exp. fizhi-gridalt-hs
1760    o add more "Z" dimensions and associated coordinate vars to MNC
1761    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1762    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1763      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1764      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1765      months and years.  Requires pkg/cal.
1766    o diagnostics: add pickup functionality
1767      - off by default for backwards compatibility
1768      - current version only uses MDSIO -- MNC will be added
1769    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1770    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1771    
1772    checkpoint57d_post
1773    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1774    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1775      output from the diagnostics package
1776    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1777    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1778      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1779    o add coordinate variables to the MNC output from the diagnostics package
1780    o change MNC-flags default value: true when useMNC=TRUE
1781    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1782      the ability (off by default) to read the grid information using MNC
1783    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1784    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1785    o do snap-shot diagnostics at the middle of the time-interval (instead of
1786      at the end).
1787    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1788      new test for AIM with thSIce + slab-ocean
1789    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1790    o move state variable diagnostics to the beginning of the time step ;
1791      (note: still needs some work specially for snap-shot diagnostics)
1792      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1793    
1794    checkpoint57c_post
1795    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1796    o generate new output.txt files on faulks with g77 & the new -ieee option
1797    checkpoint57c_pre
1798    
1799    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1800      update output.txt of exp. global_ocean.90x40x15
1801    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1802      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1803    o add saltFlux(+File) forcing capability with periodicExternalForcing
1804    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1805    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1806    o improvements for the MNC output from DIAGNOSTICS:
1807      - correct handling of the unlimitied dimension
1808      - all dims now have associated coordinate variables
1809      - variables located at U, V, and Corner ("Z") points are now written
1810        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1811        *all* data points are output
1812    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1813    o added pkg/seaice/seaice_monitor.F
1814    o mdsio_readfield.F can now read files visible only to master MPI process.
1815    o pkg/seaice: some test code for ice-modified ocean stress
1816    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1817      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1818      spurious negative numbers for precipitation and humidity.  Will cause
1819      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1820    o pkg/ctrl/
1821      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1822        May be enabled via doPackDiag
1823      *  introduce z-scaling of
1824         + gradient (doZscalePack) and
1825         + control (doZscaleUnpack)
1826    o pkg/mdsio/
1827      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1828      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1829    
1830    checkpoint57b_post
1831    o simplify options in diagnostics_fill arguments (remove weird combinations)
1832    o fix MNC coordinate variables so that they now contain per-face index
1833      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1834      general, EXCH2 grids are only aligned to a "local" coordinate system
1835    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1836    o Implement instantaneous output within pkg diagnostics:
1837      setting a negative frequency in data.diagnostics produces
1838     "snap-shot" output (as opposed to time-average if freq > 0)
1839    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1840      NOTE: change ptracer diagnostics name: use 2 characters to work with
1841            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1842    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1843      becomes the coordinate variable for the 'T' dimension
1844    o add CF-style coordinate variables to MNC
1845      - just a first cut:  numbers are meaningless on the cubesphere and
1846        missing along the T axis but otherwise it works!
1847    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1848    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1849    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1850      this is based directly on what the model compute, so that the content of
1851      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1852    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1853    o clean up build options files for SunOS, in particular
1854      - remove -traditional from xmakedepend
1855      - change -xarch=v9 to -xarch=native for f77
1856      - restore use of make (not gmake)
1857      - add CC=gcc if using g77
1858    o changes per discussion of AM, JMC, & EH3 today:
1859      - move redundant "grid" variables out of "state" -- in preparation of
1860        creating proper CF-style coordinate variables and in recognition
1861        that any/all grid variables can be easily copied (eg. w/NCO) from
1862        the grid files into any of the other NetCDF files
1863      - *always* output grid variables with MDSIO (this will eventually be
1864        changed)
1865      - output MNC grid file if useMNC is true
1866    o every instance of _END_MASTER() has been found and replaced with
1867      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1868      preprocessors
1869    o re-arrange diagnostics pkg initialisation:
1870     - allow each package to extend the available diagnostics list
1871     - add some checking and fix small problems (multi-threaded, ...)
1872     - new S/R diagnostics_fill (replace fill_diagnostics):
1873       look through the short list of active diag. (instead of the long list)
1874       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1875    
1876    checkpoint57a_post
1877    o this set of changes restores TAMC compatibility
1878      tested for global_ocean.90x40x15 adjoint on trough
1879      (what a pain)
1880    
1881    checkpoint57a_pre
1882    o some modifs in tools/build_options for sunos
1883    o call ctrl_pack for ctrl at end for optimcycle=0
1884    
1885    checkpoint57
1886    o add horizontal bi-harmonic viscosity for vertical velocity
1887      - new parameter viscA4W (defaults to viscA4)
1888      - affects only non-hydrostatic code
1889      - to be done: no-slip lateral boundary conditions
1890    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1891    o implement Implicit Vertical advection for pTracers
1892    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1893      (implemented also for implicit vertical diffusion & advection)
1894    o OBCS: extend application of tracer open boundary conditions
1895      to a strip beyond the boundary of width Olx/Oly
1896    o add call monitor to TAF set of required calls (flow directives)
1897      and include in natl_box_adjoint
1898    o untangle a few ifdefs related to cost, ctrl, autodiff
1899      untangel a few ALLOW_ECCO_OPTIMIZATION
1900    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1901      (theta2, salt2 in ecco_cost_weights)
1902    
1903    checkpoint56c_post
1904    o OBCS as control variables
1905      - update ctrl_ad_diff.list, obcs_ad_diff.list
1906      - remove balance of obcs controls from default
1907      - fix index bug nobcs in ctrl_init
1908      - fix dummy fields filen in ctrl_pack
1909      - add dummy weights for obcs
1910    o lsopt: comment out fort.94 output
1911    o optim:
1912      - remove unnecessary header files
1913      - adjusted namelists
1914      - add xerbla.F to Makefile
1915    o exf:
1916      - multiple modifications of exf_check_range
1917      - unit change in exf_init_runoff from [m/year] to [m/s]
1918    o mdsio:
1919      - i/o-vector change debugLevel from debLevA to debLevB
1920    
1921    checkpoint56b_post
1922    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1923      is called from DO_THE_MODEL_IO
1924      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1925      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1926      - clean up PTRACERS_WRITE_TIMEAVE a little
1927    o add another verification experiment that tests both the cfc-pkg and
1928      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1929      reactive tendencies treated inline with regular timestepping
1930    o testreport previously did a lousy job of comparing small numbers, so
1931      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1932      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1933      testreport.
1934    o ptracers_monitor: bug fix for MPI
1935    
1936    checkpoint56a_post
1937    o GCHEM: finish reorganizating the package
1938      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1939        (introduces another 3D-array for each passive tracer, but only if
1940        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1941        gchemTendency is not needed because the timestep is done separately)
1942      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1943      - GCHEM is now---more or less cleanly---separate from PTRACERS
1944      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1945        so clear to me how that should be done in a general way.
1946    o CFC: improve formatting of output in CFC_ATMOS
1947    o PTRACERS:
1948      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1949        that ALL experiments with ptracers enable can be checked. This makes
1950        GCHEM_MONITOR obsolete.
1951      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1952        monitorFreq
1953      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1954    o add PTRACERS (PTR0[1-5]) to testreport output
1955    o exf_check_range:
1956      * default changed to .TRUE.
1957      * will check values for niter0 if debLevA, every timestep if debLevB
1958      * STOP in exf_check_range if 'out of range'
1959      * range chosen generous to allow for potential extema
1960      TBD: a version with stricter range
1961           permitted range would be runtime parameters
1962    o GMredi:
1963      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1964      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1965      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1966    o GCHEM:
1967      - move call to GCHEM_FORCING_SEP, so that it is now called before
1968        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1969      - introduced a useGCHEM runtime flag and applied it everywhere.
1970      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1971        this flag is now only visible within GCHEM-pkg routines.
1972      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1973        be replaced by a 3D array that is computed before thermodynamics; for
1974        this, the tracer ID iTracer had to be included into the parameter list
1975        of ptracers_forcing
1976      - set up forward_step to call gchem_forcing, that will replace
1977        gchem_forcing_int in ptracers_forcing
1978      - cleaning up
1979    o small cleaning of exch2: remove files that are also in eesupp/src
1980    
1981    checkpoint56
1982    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1983    o mnc: cleanup "full" files--fixes out-of-memory problem
1984    o ECCO-GODAE
1985      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1986      * fully merged and updated from SIO code
1987        windstress sign change affects
1988        - exf_inscal_[u/v]stress
1989        - sign of xx_tau[u/v] adjustments
1990        - signs in cost_scat
1991      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1992      * natl_box_adjoint updated and compressed
1993      * 2-level checkpoint switch added
1994        (tested in EXP. 1 of natl_box_adjoint)
1995      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1996    o SVD
1997      * first complete, non-hacked version for SVD calculations
1998      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1999        performed via direct access files admtlm_vector.it????
2000        (via ctrl_[un]pack)
2001      * optimcycle is used for ARPACK iteration counter
2002        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2003      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2004        and add linear transforms where necessary
2005      * controls are initial/final SST, SSS (can be extended; need to check
2006        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2007    o mdsio: filename info to both stderr, stdout
2008    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2009      from sign change
2010    
2011    checkpoint55j_post
2012    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2013      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2014    o add consistent build directories and .cvsignore files to verification
2015    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2016    o make all subroutines 30 or less characters in length for certain older
2017      compilers to work (a thorough search only turns up two routines in
2018      pkg/ptracers)
2019    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2020      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2021    
2022    checkpoint55i_post
2023    o change arrays for total vertical diffusivity (2.D if explicit,
2024      3.D if implicit) ; each ptracer uses its own background value.
2025    o added mnc/NetCDF output capability to ocn_compon_interf
2026      - added bits to verification/cpl_aim+ocn so that it can run on
2027        ITRDA and other clusters without the mpirun "-wd" option
2028    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2029      configuration
2030    o give MNC the ability to create additional files rather than
2031      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2032      - the default is just less than 2GB which is a practical limit
2033        on many systems
2034    o Compute the non-local term using either KPP vertical diffusivity (=default)
2035       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2036    
2037    checkpoint55h_post
2038    o add verification test "vermix"
2039    o remove all the *_ioinc flags and replace with the single global
2040      outputTypesInclusive flag
2041    o allow to set a vertical profile of vertical diffusivity for T & S
2042    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2043    o useMNC moved from data.mnc to data.pkg
2044    
2045    checkpoint55g_post
2046    o Renaming carbon AD experiments to comply with testreport conventions
2047    o Updating adjoint of Held-Suarez hs94.1x64x5
2048    o Fixing directives for non-ECCO forward_step, after ECCO directives
2049      have been fixed to avoid recomp. of do_oceanic_phys
2050      Works well for global_ocean.90x40x15,
2051      but recomp. issue remains for carbon
2052    o Updating adjoint output for natl_box_adjoint after
2053      pkg/ecco has been modified (see taga c55d_post)
2054    
2055    checkpoint55f_post
2056    o rename to timeave_init_fixed
2057    
2058    checkpoint55e_post
2059    o some delicate re-shuffle of store directives to avoid one
2060      extra call of do_oceanic_physics
2061      affects ecco_the_main_loop.F, do_oceanic_physics.F
2062      checkpoint_lev1_directives.h
2063    o NB: this may break global_ocean adjoint temporarily,
2064      but it is clear how to fix it. Will do later, need this now.
2065    
2066    checkpoint55d_post
2067    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2068    o ecco_cost_weights is modified to 1x1 runs
2069    o modifs to allow observations to be read in as
2070      single file or yearly files
2071    o enable to read exf forcing fields as either
2072      single file or yearly files (flag useExfYearlyFields)
2073    checkpoint55d_pre
2074    
2075    o switch between 2-level and 3-level checkpointing
2076    o add ability of MNC to write local and "partial" (eg. 2D slices where
2077      the full 3D field is never actually stored) arrays to NetCDF files
2078      with the correct (that is, the complete multi-dimensional) set of
2079      array indicies
2080      - used in mom_vecinv() to write the diagFreq output
2081      - tested (demonstrated) in verification/aim.5l_cs
2082    o further mnc-ification
2083      - add verification/lab_sea to the list with mnc setups
2084      - fix undefined mnc v-names in cd_code
2085      - add kpp to mnc output (both snapshot and timeave)
2086    o non-hydrostatic code
2087      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2088        in calc_gw.F
2089      - defaults to viscAh
2090      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2091        friction or Leith) in non-hydrostatic mode, as long as there is
2092        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2093    o pkg/cost
2094      extend simple cost functions to treat time mean quantities
2095      (T,U,V) via cost_accumulate_state from cost_tile
2096    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2097        be 2 times larger than the minimum size the advection scheme requires.
2098        now get a perfect conservation of salt in advect_cs test-exp (updated)
2099    o GGL90 (Gaspar's TKE mixed layer)
2100      - add horizontal diffusion of TKE, requires exchanges in
2101        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2102        default. In OPA there is no horizontal diffusion of TKE but the
2103        mixing coefficients are computed from a horizontal average of TKE of
2104        6 points or so. I think that diffusion has a little more physical
2105        justification.
2106      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2107        was in vain)
2108      - mask tke-variable in ggl90_init
2109    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2110    o fix biharmonic diffusion on CS-grid.
2111    o more obcs stuff
2112      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2113        for reading boundary values. This routine is called from
2114        obcs_prescribe_read
2115      - updated obcs_check
2116      - changed sponge layer relaxation parameter units for days to seconds
2117      - turned off sponge layer by default
2118      - changed argument list of OBCS_CALC to myTime+deltaTclock
2119      - fixed about 35 bugs in obcs_external_fields_load
2120    
2121    checkpoint55c_post
2122    o obcs stuff
2123      - new runtime flags useOBCSprescribe, useOBCSbalance
2124      - re-arranged obcs_calc
2125      - moved exf_getobcs to obcs_prescibe_read
2126        obcs_prescibe_read is called after ORLANSKI stuff
2127        and independent of it (executable can contain all).
2128      - updated obcs_check
2129      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2130        These may be necessary only if tangential velocities are
2131        prescribed at OB, not sure, needs testing.
2132    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2133      which simplifies the calls and passes the ifc check-bounds test
2134    
2135    checkpoint55b_post
2136    o add a 2D scalar, Z location, exchange_2 routine.
2137    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2138      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2139      affects advect_cs results (for the wrong reason): update output.txt
2140    o use a more standard discretization for biharmonic viscosity ;
2141     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2142      affects results of dome set-up: update output.txt
2143    o fix gad_advection.F (CubedSphere part), back to version 1.23
2144    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2145    
2146    checkpoint55a_post
2147    o merged code to
2148      * prescribe/read time-dependent open boundaries
2149        (works in conjunction with exf, cal)
2150      * sponge layer code for open boundaries
2151      * each boundary N/S/E/W now has its own CPP option
2152        (healthy for the adjoint)
2153    
2154    checkpoint55
2155    o up-to-date adjoint of previous breaks
2156      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2157      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2158      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2159      - carbon: * remove tr1-related adjoint verification
2160                * add ptracer as control variable
2161    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2162      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2163    
2164    checkpoint54f_post
2165    o in verification/carbin/ remove experiment related to
2166      ALLOW_PASSIVE_TRACER (array tr1 etc)
2167      code_ad/ input_ad/ results_ad
2168    
2169    o add two new packages
2170      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2171        + subject to optimization (memory)
2172      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2173        + subject to reordering (many GOTOs in the original code)
2174        + so far opps is called for every (i,j) point, and then operates in
2175          the vertical; one may want to reorder the scheme in order operate in
2176          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2177          fields)
2178    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2179      - all verification tests compile and run with linux_ia32_g77
2180      - defaults are compatible with current input files--nothing
2181        should change if you were not previously using MNC
2182      - MNC output has been added in numerous places (eg. timeave)
2183        but there are still a few writes not yet do-able with MNC
2184        (this is in progress)
2185      - flags now allow for either/or/both use of MDSIO and MNC and
2186        documentation will soon follow
2187      - numerous small formatting cleanups for ProTeX
2188    o add version info (via BUILD_INFO.h) to MNC and stdout
2189    
2190    checkpoint54e_post
2191    o add two new packages
2192      - pp81 (Packanowski and Philander, 1981), Richardson number and
2193        stratification dependent mixing
2194      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2195      - these scheme operate in a similar manner as KPP (without ghat, of
2196        course), however there is only one diffusivity that is used for both
2197        temperature and salinity (and passive tracers)ç
2198    o add offline package
2199    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2200      provided by Stephanie Dutkiewicz
2201    o genmake2: add ability to search for C compilers and cleanup test output
2202      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2203    
2204    checkpoint54d_post
2205    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2206    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2207      leading to additional shift by 5 days each year of integration
2208       (i.e. leading to considerable offset over the years)
2209    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2210    o start with no AB and no initial filtering (staggerTimeStep):
2211      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2212    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2213      (external loading & cpl import/export stay in forward_step.F)
2214    o update coupling interface to work with new staggerTimeStep
2215    o change MDSIO ptracers_pickup.
2216    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2217    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2218    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2219    
2220    checkpoint54c_post
2221    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2222      this affects (truncation error) output.txt of test-exp:
2223       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2224    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2225    o change Qnet to always be the net heat flux, (+upward).
2226      affects (truncation error) output of natl_box exp.: updated
2227    o define the max number of passive tracers in PTRACERS_SIZE.h
2228    o start to test mnc routinely in exp0
2229    o add sea-ice loading (sIceLoad) as a new forcing field.
2230    
2231    checkpoint54b_post
2232    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2233       impressive on Altix and Opteron systems)
2234    o diagnostics can now write NetCDF files through the mnc package
2235    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2236    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2237    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2238      affects (truncation error) output of lab_sea & natl_box exp.: updated
2239    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2240    
2241    checkpoint54a_post
2242    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2243    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2244    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2245    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2246      + internal_wave (shift in writing cg2d_ini_res)
2247    checkpoint54a_pre
2248    
2249    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2250      - modified verification/lab_sea and natl_box_adjoint accordingly
2251    
2252    checkpoint54
2253    checkpoint53g_post
2254    o prepare splitting of thermodynamics: store convect.counter in common block
2255    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2256      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2257    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2258    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2259    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2260    o restore adjointability
2261    
2262    checkpoint53f_post
2263    o modifications that affect AIM experiment results (update output.txt):
2264      - no advection of S at top interface Nr (pkg/generic_advdiff)
2265      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2266    o AIM pkg:
2267      - include stability function into surf.Flux derivative relative to Tsurf
2268      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2269    
2270    checkpoint53e_post
2271    o merged cylindrical coord configuration
2272    o added rotating_tank experiment
2273    checkpoint53e_pre
2274    
2275    checkpoint53d_post
2276    o faulks upgraded: re-generate output.txt that have changed:
2277       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2278    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2279    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2280    o added Sadourny discretization of Coriolis
2281      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2282      - re-enabled use of omega3 (useAbsVorticity)
2283    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2284      vector-invariant equations
2285      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2286    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2287      hopefully without new bugs
2288      - still to do: biharmonic friction for non-hydrostatic w
2289    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2290    o regenerated output for global_ocean_ebm (using -ieee)
2291    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2292      of mom_common/
2293      - simple re-arrangement of instructions within computing loop
2294    checkpoint53d_pre
2295    
2296    checkpoint53c_post
2297    o new version of coupler for AIM+thSIce and Ocean models
2298     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2299     - land: change Evaporation of snow
2300     - aim with thSIce: fix bug in snow-precip.
2301    o changes to calc_gw.F
2302     - bug fix for w^2 term near the bottom boundary
2303     - (hopefully) improve the lateral slip boundary condtions for use with
2304        partial/looped cells
2305      - because the bug fix changes two verification experiments anyway (exp5
2306        and plume on slope), change the lateral boundary condition from half slip
2307        to the value of no_slip_sides
2308    o ebm package wasnt quite up to the parallel task. Fixed that.
2309    o Adjoint of EBM package + verification
2310      * TLM OK
2311      * ADM not sufficient accuracy yet (needs further testing)
2312    
2313    checkpoint53b_post
2314    o Commiting new energy balance model to repository
2315      * package is pkg/ebm
2316      * verif. is verification/global_ocean_ebm
2317      * references are in ebm_driver.F
2318    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2319    C        Global thermohaline circulation. Part I:
2320    C        Sensitivity to atmospheric moisture transport.
2321    C        J. Climate 12(1), 71-82
2322    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2323    C        Global thermohaline circulation. Part II:
2324    C        Sensitivity with interactive transport.
2325    C        J. Climate 12(1), 83-91
2326    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2327    C        Destabilization of the thermohaline circulation
2328    C        by atmospheric eddy transports.
2329    C        J. Climate 7(12), 1870-1882
2330    o Will need long integration testing.
2331    checkpoint53b_pre
2332    
2333    o created pkg/mom_common in preparation for variable viscosity code
2334    o renamed and split ini_mnc_io
2335    o pkg/land: only liquid water can diffuse or run-off
2336    o AIM using land: soil wetness availability account for snow
2337    o added printMapIncludesZeros to EEPARMS namelist
2338    
2339    checkpoint53a_post
2340    o restore TAMC compatiility for exf_constants.h
2341      (no usage of _d in .h)
2342    o Additional storing in KPP in an attempt to fix
2343      TAMC problem with adjoint of KPP code.
2344      (no success...)
2345      Identical code works fine with TAF.
2346    o Fixed verification/natl_box_adjoint experiments.
2347      Initial conditions for Experiments 4 and 5 are now
2348      set to "SEAICE_initialHEFF=0", which is more reasonable,
2349      and hence gives results closer to that of Experiment 2.
2350      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2351    
2352    checkpoint53
2353    o stable checkpoint with up to date adjoint
2354      TLM tests only run for 1st grdchk at the moment. Its unclear if
2355      this is a code problem or a problem with resetting code for g_
2356      variables that is being autogenerated wrong.
2357      Otherwise:
2358       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2359       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2360         are both still in chaos following their security messes.
2361    
2362    checkpoint52n_post
2363    o various build (mostly genmake2) changes including:
2364      - ability to build/run more easily within Cygwin and MacOS X
2365      - more complicated Makefiles with a stronger dependence on Gnu Make
2366    o pkg/seaice modifications
2367      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2368        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2369        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2370      - changed proxy for geostrophic velocity and updated
2371        verification/lab_sea/results/* accordingly
2372      - removed ADI dynamic solver from pkg/seaice
2373      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2374        they caused a segmentation fault under certain circumstances
2375      - removed unused field WATR
2376    o bug fix in exf-package:
2377      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2378         now reflect that.
2379    o small fixes in the cal-package:
2380      - set reference date to first of January for the 'model'-calendar
2381      - failing of cal_CheckDate in cal_FullDate now actually results in a
2382        warning
2383    o small modifications in exf-package to increase flexibility:
2384      - change climtempfreeze from a constant to a runtime parameter that
2385        is specified in data.exf_clim (default = -1.9)
2386      - introduce runtime parameter windstressmax (default = 2.0) that is
2387        specified in data.exf
2388    o fix in pkg/thsice:
2389      - update Evap (Tsf changes) to be consistent with Latent heat flux
2390      - maintain snow precipitation unchanged (even if Tsf >=0).
2391     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2392    
2393    checkpoint52m_post
2394    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2395      this does not change any of the results, because myIter=0 in swfrac always
2396      lead to jwtype=2 (the default anyway), but the call makes little sense
2397      as a default
2398    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2399    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2400      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2401    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2402    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2403    o extending useSingleCpuIO option to work with new exch2 I/O format
2404      - old-style, missing-tile I/O is still accessible by defining CPP
2405        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2406    o monitor package can write to NetCDF files and/or STDOUT
2407    o fix re-definition bug in MNC_GRID_INIT_ALL()
2408    o doc/api_reference added
2409      - a framework for building an API Reference Manual using all
2410        the "protex" comments embedded in the code
2411      - see pkg/generic_advdiff, pkg/mnc for examples
2412    o MNC:
2413      - make myThid the last argument for all subroutines
2414      - new default for the grid files: NO halos
2415      - add useMNC and other run-time flags
2416      - separate per-file-group handling of the unlimited dimension
2417      - early initialization of MNC w/ flags read at the eeboot stage
2418        and lookup tables set in initialize_fixed
2419      - write all MNC output to a freshly-created directory
2420    o thermodynamics sea-ice (thsice) is now tested with testreport.
2421    o test exp. advect_cs: use the standard cs32 grid ; update output.
2422    o Added functionality to grdchk:
2423      pick global i,j,k position (or nearest wet) where to perform check.
2424    
2425    checkpoint52l_post
2426    o new land formulation:
2427      a) use ground enthalpy as prognostic variable to ensure exact
2428         energy conservation.
2429      b) account for water temperature and for latent heat of freezing
2430         in all processes (rain, run-off, ground storage)
2431      c) compute surface and ground temperature implicitly.
2432    o aim_v23 modification for new land model:
2433      a) Treat separately land / ocean / sea-ice surface fluxes
2434         to allow implicit computation of land & sea-ice surface temp.
2435      b) add snow precipitation.
2436    checkpoint52l_pre
2437    
2438    o fix problem (when 1 tile is empty) in min/max monitor.
2439    o fix bug in timeAve (u,vZetatave in common block)
2440    o no restoring terms under ice for pkg/seaice
2441    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2442    o bug fix for pkg/seaice pickups
2443    o change MNC call locations and add coordinate attributes
2444    o mask vorticity at the corner ; affects global_ocean.cs output
2445    o fix ini_curvilinear_grid ; test CS experiments with mpi
2446    o aim.5l_cs: modify sea-ice fraction input file ; update output
2447    o exf: Adding simple range check routine for exf fields after read
2448    
2449    checkpoint52k_post
2450    o removed top-level directory "diags"
2451      - we migrated these functions to pkg/timeave a long time ago
2452    o fixed bug introduced in pkg/monitor
2453    o accuracy ctrlprec = 32 insuffient for gradient checks using
2454      averaged fields (I/O via cost_averages)
2455      -> use ctrl.h in active_file*.F to control I/O precision.
2456    o paramter list of CALL ADTHE_MAIN_LOOP
2457    o added initial do_the_model_io to ecco
2458    o set all ...Freq to zero after cost_final
2459      taveFreq, dumpFreq, pChkptFreq
2460    o MAIN and ECCO differentiability restored
2461    
2462    checkpoint52j_post
2463    o fix nchklev in tamc.h for global_ocean...
2464    o Bringing flow and store directives up-to-date
2465    o Really weird thing!
2466      call do_the_model_io from the_main_loop with parameters
2467      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2468      TAF places a faulty re-call of initialise_varia
2469      after cost_final call which should not be there!
2470    checkpoint52j_pre
2471    
2472    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2473      error messages
2474    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2475    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2476      debug output
2477    o modfied mdsio_writefield.F to handle non-global files under exch2
2478    o update AIM Cubed-Sphere exp (aim.5l_cs):
2479      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2480    o update AIM Equatorial Channel exp:
2481      use standard aim_v23 pkg and change the SST fields to be more realistic.
2482    o globalFile now works with exch2
2483    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2484      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2485    o limit timeave output for hi-res integrations
2486    
2487    checkpoint52i_post
2488    o removed CPP_EEOPTIONS.h from verification/*/code
2489    o updated the tiling for global_ocean_pressure
2490    checkpoint52i_pre
2491    
2492    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2493      the old pkg/aim).
2494    
2495    checkpoint52h_pre
2496    o shortened offending lines in exch2_send_rx?.template
2497    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2498    o genmake2: add build & execute test for NetCDF code
2499    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2500      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2501    o added useSingleCPUIO flag to monitor.F and mon_out.F
2502    o added temporary hack for sea-ice dynamics on the cube:
2503      metric terms are ignored and it is assumed that
2504      there is no sea-ice on cube faces 1, 2, 4, and 5.
2505    
2506    checkpoint52f_post
2507    o added exch2 cube routines to pkg/exch2
2508    o modified hs94.cs-32x32x5 to use it
2509    o added new grid files to hs94.cs-32x32x5
2510    checkpoint52f_pre
2511    
2512    checkpoint52e_post
2513    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2514      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2515    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2516      to work with implicit vertical advection and AB ;
2517    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2518    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2519     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2520    checkpoint52e_pre
2521    
2522    o fix bug in impldiff when Nr=1 or Nr=2.
2523    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2524    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2525    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2526      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2527    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2528    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2529    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2530    
2531    checkpoint52d_post
2532    o re-tiled many expts to allow comparison in multi-processor mode
2533      - updated output accordingly
2534      - changed hs94.128x64x5 to use intial T from file rather than use the
2535        random number generator
2536    o add infrastructure in model routines for fizhi and gridalt packages
2537    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2538    o changes to permit hi-res, cubed-sphere, configuration
2539      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2540      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2541      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2542        of surface winds for the cube
2543      (A verification experiment, based on global_ocean.cs32x15, but with
2544       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2545       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2546       complete with example surface forcing files and matlab scripts to look
2547       at the output and compare it with that of global_ocean.cs32x15.)
2548    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2549       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2550       to conform to the common rule.
2551    o check-in the first version of the coupler + interfaces for multi-components
2552       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2553       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2554       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2555       - ocean and atmos. share the same horizontal grid (no interpolation).
2556       - exchanges between component and coupler is done in forward_step
2557    o new verification experiment, cpl_aim+ocn:
2558       coupled ocean - AIM atmosphere on cs32 grid.
2559    
2560    checkpoint52d_pre
2561    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2562    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2563    
2564    checkpoint52c_post
2565    o Fixing OPTIONS files for use of exf:
2566      - ALLOW_ECCO not needed
2567      - ECCO_CPPOPTIONS.h should not be included from
2568        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2569        as has been the case in the past
2570      - All cal/exf related options are currently set in
2571        single header file. Should remain so until we
2572        agree on a consistent new policy.
2573    o Removed all CPP options for cal package.
2574      cal has no more CPP options.
2575    o modified STOREs in GAD_ADVECTION
2576    o corrected key comp. for passkey
2577    
2578    checkpoint52b_post
2579    o new version: "thsice" of thermodynamic sea-ice pkg:
2580     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2581     - modify fluxes but do not change theta directly;
2582     - light cleaning of bulk_force pkg (still needed with thsice).
2583     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2584       + output_thsice.txt to test thsice & bulk_force pkgs.
2585    o put back grid & coriolis monitor output.
2586    checkpoint52b_pre
2587    
2588    o call "do_the_model_io" at the beginning (=> dump initial state)
2589    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2590    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2591      (need info on NUMBER_OF_PTRACERS)
2592    o missing PTRACERS headers in some routines
2593    o default tamc.h in pkg/autodiff supposed to crash
2594      to ensure proper customization
2595    
2596    checkpoint52a_post
2597    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2598      - moved surfaceTendencyTice from pkg/seaice to main code
2599      - subroutine FREEZE_SURFACE now limits only surface temperature
2600        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2601        => new output.txt for global_ocean.cs32x15 & global_with_exf
2602      - keep the old version of FREEZE for backward compatibility;
2603        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2604      - corresponding modifs for TAF directives
2605    o added surface flux output variables to TIMEAVE_STATVARS
2606    o time-averaged output for pkg/ptracers
2607    o fix problem with ECCO-related divided adjoint
2608      snapshot file was missing some ad-variables,
2609      but no warning issued by TAF
2610    
2611    checkpoint52a_pre
2612    o some bug fixes for #undef REAL4_IS_SLOW
2613    
2614    checkpoint52 = ecco_c52_e35
2615    o after testing adjoints of checkpoint51u_post
2616    
2617    checkpoint51u_post
2618    o this is the post-merge tag of the ecco-branch
2619      (needs another clean checkout and re-testing)
2620    o various natl_box_adjoint configs and results
2621      but no input fields
2622    o obcs adjoint not yet merged!
2623    o adding ECCO global 1x1 and 2x2 degree configs
2624    o updated/extended some store directives for seaice
2625    o pkg/ecco now containes ecco-specific part of cost function
2626    o top level routines the_main_loop, forward_step
2627      supersede those in model/src/
2628      previous input data.cost now in data.ecco
2629      (new namelist ecco_cost_nml)
2630    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2631    
2632    checkpoint51t_post
2633    o this is the pre-merge tag of the ecco-branch
2634    
2635    checkpoint51s_post
2636    o cleanup: removed various obsolete #define-s
2637    o pkg/grdchk
2638      - renamed 'ph-grd 3' to 'grad-res'
2639      - merged from ecco-branch
2640        (remaining bug fixes for obcs gradient checks)
2641      - additional high-precision output for testreport
2642        (grep for 'precision_grdchk_result')
2643    
2644    checkpoint51r_post
2645    o cleaned up or removed CPP_OPTIONS.h files
2646    o updated results for some of the tests to reflect the new
2647      optfiles (-ieee: -O0 instead of -O3)
2648    
2649    checkpoint51q_post
2650    o cd_code:
2651      - moved cd_scheme.F -> cd_code_scheme.F
2652      - separate read_checkpoint from cd_code_ini_vars.F
2653      - separated cd_code part from write_checkpoint
2654      - updated AD_SOURCE, generated .flow
2655      - added CD_CODE_VARS.h to the_main_loop
2656      - Moving cd_code specific store dir.s to pkg/cd_code
2657    o ctrl package totally restructured
2658      - pack/unpack now optional and decoupled from
2659        xx_/adxx_ I/O
2660      - ctrl_pack/unpack cleaned
2661        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2662      - confined inclusion of AD_CONFIG.h to where necessary.
2663    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2664    
2665    checkpoint51p_post
2666    o create initial cd_code package
2667      - WARNING: the initialization of fields within packages
2668        is broken because INI_FIELDS (where READ_CHECKPOINT is
2669        called) is called *before* PACKAGES_INIT_VARIABLES.
2670        This seems to be backwards since
2671        1) its important to initially zero the entire field including
2672           the "halo" region
2673        2) zeroing needs to be done *before* reading pickup info
2674           and the pickup call might or might not happen in any
2675           particular run
2676      - this needs an overhaul for R2
2677    o cleanup verification/*/code/GMREDI_OPTIONS.h
2678    o cleanup testreport
2679    
2680    checkpoint51o_post
2681    o bringing AD-related verif's up to date with genmake2
2682      - carbon/
2683      - global_ocean.90x40x15/
2684      - hs.94.1x64x5/
2685      - (front_relax/ )
2686    o (more) consistent directory structure for AD-related verif.'s
2687    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2688    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2689    o bug fix in find_alpha.F for MDJWF:
2690      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2691        change rho -> rho-rhoConst
2692      - replace call find_rho to find_rhonum
2693    o initialisation of rFlx extended to full array (required by TAF)
2694      and shifted to thermodynamics
2695    o removed PTRACERS.h in ptracers routine
2696    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2697    o Correcting initialisations for fVerU, fVerV.
2698    o helping TAF to recognize dependency on kUp for
2699      fVerU, fVerV
2700    o Replacing delZ by delR in pkg/ctrl/
2701    checkpoint51o_pre
2702    
2703    o undid all of cp51 pending some cleanups and discussion
2704    o added the [#include "AD_CONFIG.h"] statement to all files that need
2705       it for adjoint/tl #defines
2706     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2707     o removed tools/genmake since it no longer works
2708    
2709    checkpoint51n_post
2710    o modifications to make FREEZE flux visible to pkg/kpp
2711      - moved surfaceTendencyTice from pkg/seaice to main code
2712      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2713      - subroutine FREEZE now limits only surface temperature
2714        (this means new output.txt for global_ocean.90x40x15,
2715         global_ocean.cs32x15, and global_with_exf)
2716    o added surface flux output variables to TIMEAVE_STATVARS
2717    
2718    checkpoint51n_pre
2719    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2720    o added [#include "AD_CONFIG.h"] to all files that use the following
2721      defines:
2722      - ALLOW_ADJOINT_RUN
2723      - ALLOW_TANGENTLINEAR_RUN
2724      - ALLOW_ECCO_OPTIMIZATION
2725    
2726    checkpoint51m_post
2727    o incorporating changes to get TAMC/TAF working in genmake2
2728      - added new TAMC/TAF targets to the Makefile
2729      - various cleanups related to package handling
2730      - these changes should have no impact on the forward model
2731    
2732    checkpoint51l_post
2733    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2734     - faster algorithm for cal_addtime.F
2735     - higher precision arithmetic, where needed
2736     - pkg/exf *startdate variables changed from calendar date to
2737       model integration time
2738    
2739    checkpoint51l_pre
2740    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2741    o enable to apply restoring on S & T only in a latitude band.
2742    o update output (external_forcing_surf modif. change truncation errors)
2743       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2744    
2745    checkpoint51k_post
2746    o change default to: useNHMTerms=.FALSE.
2747     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2748       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2749     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2750        exp1, ideal_2D_oce
2751     - change data file of oceanic exp (leave the results unchanged for now)
2752       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2753    o set gravitySign automatically according to the vertical coordinate used
2754      (and change sign: back to "logical" value: +1 when R increases downward)
2755    o added an include barrier to the default CPP_OPTIONS.h and
2756      removed the #include "PACKAGES_CONFIG.h" from it
2757    o fix a bug in mom_fluxform (from chk51j_post)
2758    
2759    checkpoint51j_post
2760    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2761    o adjusted some flow directives (dynamics, thermodynamics)
2762    o added cubed-sphere case to test cost function
2763    o heckpoint_lev?_directives.h now include
2764      pkg-specific directives, whenever those are enabled.
2765    o Moving pkg-specific flow directives to corresponding pkg
2766      Moving pkg-specific differentiation list to corresponding pkg
2767      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2768      ---> conventions are
2769           - pkg_ad.flow
2770           - pkg_ad_diff.list
2771           - pkg_ad_check_lev?_dir.h
2772    
2773    checkpoint51i_post
2774    o merge of the branch-genmake2
2775      - knowingly breaks the older genmake
2776      - automatic generation of all ALLOW_${PKG_NAME} defines
2777      - new testreport supersedes older testscript
2778    o large number of package inclusion and header cleanups
2779    checkpoint51i_pre
2780    
2781    o new output for adjoin of global ocean vector invariant
2782    o fix for checkpoint of thermodynamic seaice and bulk_force
2783    o Steph gchem various cleanups
2784    
2785    checkpoint 51h_pre
2786    o fixed some single quotes
2787    o modify gchem pkg to be more versatile
2788    o modifications to clean up dic pkg
2789    o add pkg/cfc
2790    
2791    checkpoint51g_post
2792    o provide links for ARPACK and ADM*TLM
2793    o start removing verification/vero/
2794    o update AD-related stuff
2795      (in particular some IF-statements in model/src/ routines)
2796    o adding to verification/global_ocean.90x40x15/ adjoint of
2797      vector invariant setup
2798    
2799    checkpoint51f_post
2800    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2801    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2802      of tracer Green's fucntions for ocean inversion project.
2803    
2804    checkpoint51f_pre
2805    o Added on-the-fly spatial interpolation capability
2806        "USE_EXF_INTERPOLATION" to pkg/exf.
2807      - This is a temporary Cartesian-grid hack until
2808        the super-duper ESMF coupler becomes available.
2809      - See verification/global_with_exf/README for usage example.
2810      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2811        flags and modified pkg/seaice accordingly.
2812    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2813        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2814        non-local transport term.
2815    
2816    checkpoint51e_post
2817    o pkg/mom_vecinv:
2818      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2819      - add time-ave diagnostic of vorticity advection.
2820    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2821    o atmospheric geopotential: - include water vapor effect;
2822                                - use p^kappa in p* scaling.
2823    o land pkg: read initial state from files.
2824    o AIM : add stratospheric drag in the upper level
2825    
2826    checkpoint51d_post
2827    o change function ILNBLNK (=> last non-blank char.) to return zero
2828      (instead of the string length) when the string. char is empty
2829    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2830    o modif's to restore TAMC compatibility
2831      - avoid "_d" constructs in PARAMETER declarations
2832      - avoid interrupting lines by comment lines
2833    o Use cluster local disks for purely local I/O
2834      vs. globally visible disks needed for ctrl stuff
2835      (merged from ecco-branch)
2836      - new active_file_loc... and mdsio_..._loc routines
2837      - affected packages: autodiff, ctrl, grdchk, mdsio
2838    
2839    checkpoint51c_post
2840    o introducing integer flag debugLevel
2841      - debLevZero: suppress all output
2842      - debLevA: standard
2843      - debLevB: equivalent to current debugMode=.TRUE.
2844    o introducing pathname variable mdsioLocalDir for mdsio
2845      that can be specified at runtime
2846      (relevant for cluster I/O to local disk)
2847    `
2848    >>>checkpoint51b_post
2849    adjoint of ptracers
2850    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2851    o extended state in checkpoint_lev?, etc.
2852    o alternative ctrl/cost with tr1 or ptracer
2853    o new comlev1_bibj_ptracers
2854    o new ptracers.flow
2855    o made ptracers_forcing same as external_forcing_s
2856    o added verification for adjoint with ptracers
2857      - adm. grdchk fail so far
2858      - tlm. grdchk OK
2859      - checked tapelev/comlev recomputations: OK
2860    <<<checkpoint51b_pre
2861    
2862    checkpoint51a_post
2863    o added code for biogeochemistry package
2864      - new pkgs: dic, gchem
2865      - new subroutine in ptracers
2866    o modify code for biogeo packages
2867      - in model/src and pkg/ptracers
2868    
2869    checkpoint51
2870    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2871      - autodiff, ctrl, exf, grdchk, seaice
2872      kept separate packages
2873      - cost, ecco, obcs
2874    o updating verification/internal_wave, verification/lab_sea
2875      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2876    
2877    checkpoint50i_post
2878    o Preparing next differentiable checkpoint and sync
2879      of MAIN vs. ecco-branch
2880      - 1st step: this one is differentiable
2881      - 2nd step: next(! not this) checkpoint will have updated packages
2882                  from ecco-branch)
2883    
2884    checkpoint50h_post
2885    o new package "land": provide surface BC for AIM.
2886    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2887    o AIM: use true log-P extrapolation for near surface temp (= as in
2888        F.Molteni paper) ; update aim.5l_cs output.
2889    o New variable in PARM03 for more flexible pickups
2890    o somewhat cleaned package initialisation sequence for
2891      ctrl/ cost/ ecco/ in packages_... routines
2892    
2893    checkpoint50g_post
2894    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2895      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2896      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2897        made the default because of faster convergence than ADI
2898    
2899    checkpoint50f_post
2900    o exf totally restructured
2901      - replaced all exf_set_ routines by one generic exf_set_gen.F
2902        and made sure it's still differentiable
2903      - split exf_getffields.F into new exf_bulkformulae.F
2904      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2905      - updated adjoint/makefile and relevant verif. accordingly
2906    
2907    checkpoint50f_pre
2908     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2909          + change Evap over land. (update aim.5l_cs output)
2910     o added missing .cvsignores and made uniform across expts
2911     o changed configuration of tidal_basin_2d expt
2912     o added pkg/debug functions for tracing code in fatal crashes
2913     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2914     o new fn in pkg/monitor to stop model if solution grows too big
2915     o removed lots of single quotes from comments
2916    
2917    checkpoint50e_post
2918    o make KPP work with PTRACERS
2919     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2920       nearly a copy of kpp_transport_s
2921     - there is no analogue to SurfaceTendencyS, so I have to use
2922       gPtr(of the surface layer) instead
2923    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2924    checkpoint50e_pre
2925    
2926    checkpoint50d_post
2927    o change kpp output from multiple-record state files to single-record state
2928      files analogous to write_state.F
2929    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2930      analogous to the cg2d-related output.
2931    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2932      so that writing to internal file fn (with length 512) fails.
2933    checkpoint50d_pre
2934    
2935    checkpoint50c_post
2936    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2937    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2938    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2939    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2940    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2941    
2942    checkpoint50c_pre
2943    Merging from release1_p13:
2944    o bug fix for pkg/seaice dynamic solver
2945    o Added SEAICE_initialHEFF to pkg/seaice
2946    
2947    checkpoint50b_post
2948    o store u*,v* in gU,V instead of in guNm1,gvNm1
2949    o in order to put the momForcing out of the Adams-Bashforth:
2950      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2951      to timestep.F
2952    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2953    o re-generate output for highly sensitive test-exp:
2954       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2955    
2956    checkpoint50b_pre
2957    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2958    o corrected CPP option mismatch in exf_Bulk... functions for case
2959      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2960    
2961    checkpoint50a_post
2962    o Bug fix for merging between c50 and KPP.
2963      ikey was passed from thermodynamics to kpp_calc via
2964      common block rather than being recomputed in kpp_calc,
2965      in contradiction with new key itdkey.
2966      New key ikppkey created, and tamc.h headers updated.
2967    
2968    checkpoint50
2969    - 2nd step of merge with ecco-branch:
2970      merge changes in ecco-branch back into main trunk
2971    - bug fix in find_alpha
2972    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2973    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2974    - merged some sliced AD support routines
2975    
2976    checkpoint49
2977    merged from ecco-branch:
2978    o exf:
2979      - Enable initialisation of forcing fields to constant
2980        (runtime) values.
2981      - in exf_getffields.F
2982        Reduce i-/j-loop to interior domain, discarding overlaps.
2983        That also fixes wrong TAF-key computations for key_1, key_2
2984        with bulf formulae.
2985      - exf_init.F modify #ifdef for exf_init_evap
2986      - exf_getffieldrec.F, ctrl_getrec.F
2987        The following INT-usages are not safe:
2988          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2989          fldcount = int(fldsecs/fldperiod) + 1
2990        and were modified.
2991    o autodiff: checkpoint_lev...
2992      - updated storing for bulk formulae (some arrays were missing)
2993      - added state for seaice package
2994      - synchronized with main branch
2995    o DIVA:
2996      Modif.s in
2997      - the_main_loop.F
2998      - the_model_main.F
2999      and added cost_final_restore.F cost_final_store.F
3000      o With these changes, it is possible to fully separate
3001        the first forward run to compute the cost function (mdthe_main_loop)
3002        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3003        into separate model executions.
3004        This enables better tuning of DIVA to given queue sizes.
3005      o Loss of cost function value in consecutive DIVA runs is
3006        fixed by storing to 'costfinal' file.
3007      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3008        beginning/end of adjoint integration is accounted for.
3009      The current changes apply to TAF-1.4.26.
3010      TAF has one remaining bug, requiring one manual change
3011      (see MITgcm manual).
3012    o cal: synchronized between MAIN and ecco-branch
3013    
3014    checkpoint48i_post
3015    o Changes to restore differentiability of code w.r.t. previous tag
3016      (mostly adding new routines to make list and replacing
3017      pressure by totPhiHyd).
3018    o Updated and merged grdchk package
3019      - has both ADM and TLM checks
3020      - works for single- and multi-proc.
3021      - output cleaned
3022      - worked successfully for parallel DIVA
3023    o genmake:
3024      - Adding -platform=SP4
3025      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3026    o Modif. for DIVA:
3027      ctrl_unpack should not be called in intermediate DIVA interval.
3028      (similar thing would apply for active files such as
3029      tbar, sbar, psbar, which should not be reinitialised;
3030      only relevant for ecco-branch)
3031    
3032    checkpoint48h_post
3033    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3034    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3035    o Added SEAICE_initialHEFF to pkg/seaice
3036    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3037    
3038    checkpoint48g_post
3039    --- EOS:
3040    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3041      store total Potential in totPhyHyd for diagnostics & EOS.
3042    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3043    --- Pressure/geopotential gradient:
3044    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3045    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3046      ( changes results of global_ocean_pressure )
3047    o NLFS + z-coord.: add eta*Rho' contribution.
3048    o accurate phiHyd when using interface-W at the middle between 2 centers
3049     ( changes results of ideal_2D_oce )
3050    o includes r* 2nd term in potential gradient.
3051    
3052    checkpoint48f_post
3053    Merging from release1_p12:
3054    o Modifications for using pkg/exf with pkg/seaice
3055      - improved description of the various forcing configurations
3056      - added basic radiation bulk formulae to pkg/exf
3057      - units/sign fix for evap computation in exf_getffields.F
3058      - updated verification/global_with_exf/results/output.txt
3059    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3060      (SBO) core products, including oceanic mass, center-of-mass,
3061      angular, and bottom pressure (see pkg/sbo/README.sbo).
3062    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3063      to avoid negative values in shallow regions.
3064      - updated verification/natl_box/results/output.txt
3065      - updated verification/lab_sea/results/output.txt
3066    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3067    o Added useSingleCpuIO option (see PARAMS.h).
3068    o Updated useSingleCpuIO option in mdsio_writefield.F to
3069      work with multi-field files, e.g., for single-file pickup.
3070    o pkg/seaice:
3071      - bug fix in growth.F: QNET for no shortwave case
3072      - added HeffFile for specifying initial sea-ice thickness
3073      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3074    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3075      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3076    o pkg/seaice:
3077      - adjoint-friendly modifications
3078      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3079    
3080    checkpoint48e_post
3081    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3082    o dynamics: change definition of computational domain & adapt mom_fluxform
3083      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3084    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3085        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3086        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3087        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3088        inverted_barometer solid-body.cs-32x32x1
3089      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3090    
3091    checkpoint48d_post
3092    o in preparation for r*:
3093     a) use pre-computed gradient of hydrostatic potential:
3094        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3095     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3096        => affects results of glob_oce_pressure (different truncation error)  
3097      update output.txt of ideal_2D_oce & global_ocean_pressure
3098    
3099    checkpoint48d_pre
3100    o in preparation for r*:
3101      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3102      pass the 2 comp. of the grad. as arguments to momentum S/R.
3103      but for the moment, only used if it does not change the results.
3104    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3105    
3106    checkpoint48c_post
3107    Modifications in treatment of initial flux forcing controls
3108    to avoid extra storing of flux fields.
3109    
3110    checkpoint48c_pre
3111    o Added tidal_basin_2d experiment (currently 1D!)
3112    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3113    
3114    checkpoint48b_post
3115    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3116     (modification to pressure gradient not yet implemented)
3117    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3118      (for U & V) that are used for vertical advection of momentum.
3119    
3120    checkpoint48a_post
3121    o In preparation for r*, use temp. array to compute vertical transport
3122       in flux-form momentum pkg. => change results of few test-exp.
3123      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3124                        lab_sea, natl_box & plume_on_slope
3125    
3126    checkpoint48
3127    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3128    
3129    checkpoint47j_post
3130    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3131    o moved adexch from forward_step to addummy_in_stepping
3132    o added exch in ctrl_map_...
3133    o aveFreq.=0. at end of cost_final to avoid overwrite in
3134      reverse checkpointing loop
3135    o Yet more changes in gmredi:
3136      * adgmredi_calc_tensor
3137        avoiding all recomputation of gmredi_slope_limit
3138      * adgmredi_x/y/rtransport
3139        added flag for excessive storing to avoid recomp. of
3140        u/v/rtans, dTdx/y/z
3141        -> this is not really necessary and very memory-consuming
3142      * adgmredi_slope_psi:
3143        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3144      * gmredi_slope_limit
3145        re-activated full calculation of taperfct for case 'ac02'
3146    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3147    
3148    checkpoint47i_post
3149    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3150    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3151      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3152    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3153    o gmredi: fix few bugs.
3154    
3155    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3156    This will be a good checkpoint to plug into the ecco-branch.
3157    o few modif.'s to get latest version adjointed
3158      (mainly kick out code in ini_linear_phisurf)
3159    o modif's to run adjoint with exactConserv
3160    o case GM_BOLUS_ADVEC should be cleaned
3161      S/R gmredi_slope_psi should be cleaned
3162    o verification/carbon now has exactConserv=.TRUE.
3163    
3164    checkpoint47g_post
3165    o time-average AIM output: becomes independent from statvars time-average
3166      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3167    o After TAF bug fix:
3168      Tested adjoint of gmredi package.
3169      Tests were done with checkpoint47 rather than with latest
3170      checkpoint47f_post since the latter is broken for the adjoint
3171      verification/carbon/ contains both ADM and TLM gradient checks.
3172    Here they are, before they get changed/lost/stolen.
3173    Mostly modif.'s to fix numerical sensitivities.
3174    Gradient checks OK for
3175    - GM_taper_scheme:
3176      * clipping
3177      * ac02
3178      * linear
3179      * glw91
3180      * dm95
3181      * ldd97
3182    - GMREDI_OPTIONS:
3183      * GM_VISBECK_VARIABLE_K
3184      * GM_NON_UNITY_DIAGONAL
3185      * GM_EXTRA_DIAGONAL
3186      * GM_BOLUS_ADVEC
3187    in conjunction with data.gmredi parameters to be checked in
3188    in a few minutes under verification/carbon/code/
3189    
3190    checkpoint47f_post
3191    Merging from release1_p10:
3192    o modifications for using pkg/exf with pkg/seaice
3193      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3194        and SEAICE_EXTERNAL_FLUXES
3195      - pkg/exf CPP options EXF_READ_EVAP and
3196        EXF_NO_BULK_COMPUTATIONS
3197      - usage examples are Experiments 8 and 9 in
3198        verification/lab_sea/README
3199      - verification/lab_sea default experiment now uses
3200        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3201    
3202    checkpoint47e_post
3203    o created a tag prior to creating a branch
3204    
3205    checkpoint47d_post
3206    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3207      at the bottom boundary had an erroneous half slip boundary condition
3208    o added bottom drag and no slip boundary condition capabilities to
3209      oceanic pressure coordinates code
3210    o added new verification experiment global_ocean_pressure, this experiment is
3211      also described in the tutorial section of the manual
3212    checkpoint47d_pre
3213    
3214    checkpoint47c_post
3215    o Added a verification experiment for a global cubed-sphere ocean run
3216      -  verification/global_ocean.cubed32x32x30
3217      -  uses pkg/therm_seaice and pkg/bulk_forcing
3218    
3219    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3220    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3221      when using P-coordinate; only implemented for atmospheric config.
3222    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3223      NOTES: requires option NONLIN_FRSURF to be "#define".
3224    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3225    
3226    checkpoint47b_post
3227    Merging from release1_p9:
3228    o pkg/seaice
3229      - removed GOTO's and added taf directives
3230      - double precision constants to reduce the g77 (Linux)
3231        to F77 (SGI) differences reported in release1_p8
3232    o tools/genmake
3233      - added SGI options
3234    o verification/testscript
3235      - updated to that of checkpoint47a_post
3236    o verification/global_ocean.90x40x15/input/eedata
3237      - modified for SGI f77 compatibility
3238    o verification/lab_sea
3239      - added description of sea-ice model
3240      - added missing matlab routines
3241      - added test of thermodynamics parallelization
3242    
3243    checkpoint47a_post
3244    o new pkg: aim_v23
3245     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3246       for now, keep the same surface forcing as before.
3247     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3248     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3249     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3250    o add diagnostic of surface correction term in monitor output
3251    
3252    o bulk_force and therm_seaice
3253    - Two packages:  bulk_force (Bulk forcing)
3254      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3255    - Earlier integration from Stephaine Dutkiewicz
3256      and Patrick Heimbach.
3257    - Two ifdef statements for compile time,
3258       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3259    
3260    checkpoint47
3261    differentiable version of checkpoint46n_post
3262    o bug fix in quasihydrostaticterms
3263    o * "clean" adjoint code (in terms of extensive recomputations)
3264        can now be obtained for all GMREDI options (i.e. for
3265        - GM_VISBECK_VARIABLE_K
3266        - GM_NON_UNITY_DIAGONAL
3267        - GM_EXTRA_DIAGONAL
3268        - GM_BOLUS_ADVEC )
3269      * However, wrong gradient check problem remains unsolved.
3270      * New CPP options have been introduced for different
3271        tapering schemes
3272    o external_fields_load now part of differentiation list
3273    o pressure needs multiple storing;
3274      would be nice to have store_pressure at beginning or
3275      end of forward_step, e.g. by having phiHyd global (5-dim.)
3276      (NB: pressure is needed for certain cases in find_rho,
3277      which is also invoked through convective_adjustment).
3278    o recomputations in find_rho for cases
3279     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3280    o #define ATMOSPHERIC_LOADING should be differentiable
3281    o ini_forcing shifted to begining of initialise_varia
3282    o Incorporating QNVS line search routines into MITgcm
3283      (this is separate code, and therefore not under pkg)
3284      lsopt/, optim/
3285    o Updated verification/carbon/
3286      - #define GM_VISBECK_VARIABLE_K
3287      - GM_taper_scheme    = 'ldd97'    
3288    
3289    checkpoint46n_post
3290    Merging from release1_p8:
3291    o verification/natl_box:
3292      updating new external_fields_load routine
3293    o New package: pkg/seaice
3294      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3295      The sea-ice code is based on Hibler (1979-1980).
3296      Two sea-ice dynamic solvers, ADI and LSR, are included.
3297      In addition to computing prognostic sea-ice variables and diagnosing
3298      the forcing/external data fields that drive the ocean model,
3299      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3300      The implied surface heat flux is then stored in variable
3301      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3302      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3303      non-local transport term.  Because this call precedes model
3304      thermodynamics, temperature under sea-ice may not be "exactly" at
3305      the freezing point by the time theta is dumped or time-averaged.
3306      N.B.: fairly large differences in accuracy occur across
3307            different platforms/compilers; comparison between
3308            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3309            generated output gives:
3310       T           S           U           V
3311      C D M    c        m  s        m  s        m  s        m  s
3312      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3313      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3314      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3315    
3316      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3317    o GAD:
3318      - generated new common blocks to account for call of
3319        same gad routines with differing traceridentities
3320        (needed to modify tracerIdentity indices in GAD.h)
3321      - generated separate common blocks for case useCubedSphereExchange
3322        (Department of Futurology)
3323      - parameter lists to gmredi_?transport: added tracerIdentity
3324      - added new key indices to tamc.h
3325    o external_fields_load:
3326      - added this routine to TAF list
3327      - needed to make some common blocks global and additional storing
3328        along the same lines as exf package (checkpoint_lev?_directives.h)
3329    o exf:
3330      updated external forcing package
3331      - bug fixes carried over from ecco-branch
3332        (missing OBCS_OPTIONS.h in two routines)
3333      - enable easy to use "no forcing".
3334      - added exf I/O for atmospheric loading
3335      - added exf I/O for runoff data
3336      - transfered scaling between exf <-> MITgcm to exf namelist
3337    o Adding new verification experiment global_with_exf.
3338      This verification experiment is almost identical to the
3339      global_ocean.90x40x15 experiment, except that it uses
3340      the exf (and cal) package instead of the
3341      external_fields_load routine (cf README file).
3342    
3343    checkpoint46m_post
3344    o modified testscript to return -- when there are no lines of "%MON" output
3345    o added new flag "quasiHydrostatic" for QH mode
3346      and new routine quasihydrostaticterms()
3347    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3348      New routine: mom_u_coriolis_nh()
3349    o fixed sign of non-hydrostatic metric terms in u and v equations.
3350      Depend on correct sign of gravitySign.
3351    o added work.pc* to .cvsignore in aim directories using ifc
3352    o introduced flag for controllin non-hydrostatic metric terms
3353    o removed gravitySign from PARM04
3354    o switched to g77/ifc from pgf77 in aim experiments
3355    
3356    checkpoint46l_post
3357    o made convective adjustment work with pressure coordinates:
3358     - changed the direction of k-loop in convective_adjustment.F for the
3359       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3360     - adjusted the reference pressure k-index in convective_adjustment.F
3361     - adjusted the convection condition in convect.F (in analogy to
3362       calc_ivdc.F)
3363     - convective_adjustment no longer computes anything on the halos
3364     - removed the warnings about negative salinity from find_rho.F and
3365       find_alpha.F; instead the new routine look_for_neg_salinity, called
3366       at the beginning of find_rho, find_alpha, and find_beta, does a
3367       check of the entire slice, if CPP-option
3368       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3369    checkpoint46l_pre
3370    
3371    checkpoint46k_post
3372    o fixed the verification/global_ocean.90x40x15 experiment:
3373     - new bathymetry (the world according to A., JMC, and M.)
3374     - new initial fields and forcing fields (*.bin files)
3375     - new POLY3.COEFFS (for the next release one should switch to a full
3376       equation of state: JMD95P or MDJWF)
3377     - fixed several errors and redundancies in the data file
3378     - experiment uses looped cells
3379     - added matlab directory with diagnostic scripts for plotting of output
3380    
3381    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3382     - read AIM physics parameters from a file (data.aimphys)
3383     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3384    
3385    checkpoint46j_post
3386    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3387    o move wVel computation at the end of the time step, in S/R integr_continuity
3388    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3389    o update timeave pkg for wVel diagnostic.
3390    checkpoint46j_pre
3391    
3392    checkpoint46i_post
3393    o Clean up AIM package (and keep the results unchanged):
3394      include CPP_OPTION and use IMPLICT NONE in all routines ;
3395      declare all the variables _RL ; use _d 0 for all numerical constants.
3396      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3397    
3398    checkpoint46h_post
3399    o cleaned up the use of rhoNil and rhoConst.
3400      - rhoNil should only appear in the LINEAR equation of state, everywhere
3401        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3402        and the dynamical equations are all divided by rhoConst
3403    o introduced new parameter rhoConstFresh, a reference density of fresh
3404      water, to remove the fresh water flux's dependence on rhoNil. The default
3405      value is 999.8 kg/m^3
3406    o cleanup up external_forcing.F and external_forcing_surf.F
3407      - can now be used by both OCEANIC and OCEANICP
3408    checkpoint46h_pre
3409    
3410     Added code to convert surface volume flux (fresh water) into
3411     a mass flux when using P coordinates in the ocean (OCEANICP).
3412     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3413    
3414    checkpoint46g_post
3415    o Include a new diagnostic variable phiHydLow for the ocean model
3416      - in z-coordinates, it is the bottom pressure anomaly
3417      - in p-coordinates, it is the sea surface elevation
3418      - in both cases, these variable have global drift, reflecting the mass
3419        drift in z-coordinates and the volume drift in p-coordinates
3420      - included time averaging for phiHydLow, be aware of the drift!
3421    o depth-dependent computation of Bo_surf for pressure coordinates
3422      in the ocean (buoyancyRelation='OCEANICP')
3423      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3424        Theta, Salinity, and Pressure in the parameter list. This routine is
3425        presently contained in find_rho.F. This routine does not give the
3426        correct density for 'POLY3', which would be a z-dependent reference
3427        density.
3428    o cleaned up find_rho
3429      - removed obsolete 'eqn' from the parameter list.
3430    o added two new verification experiments: gop and goz
3431      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3432    checkpoint46g_pre
3433    
3434    checkpoint46f_post
3435    o Enable tangent linear (forward mode) gradient checks:
3436      - extended active file handling to g_... files
3437      - added TANGENT_SIMULATION to theSimulationMode
3438      - extended grdchk package accordingly
3439    o added tangent linear setup in verification/carbon/code_ftl
3440    o added adjoint setup in verification/front_relax/code_ad
3441    
3442    checkpoint46e_post
3443    o Added new equation of state -> MDJWF
3444      - EOS of McDougall et al., 2002, JAOT, submitted
3445      - caveat: the equation of state is only valid for a smaller (more
3446        realistic?) range of values than JMD95P/Z and UNESCO
3447      - added masks to the calculation of pressure in store_pressure
3448      - added more check values for density in check_eos (ini_eos.F), some of
3449        the old check values are out of the range of the MDJWF-eos, so don't
3450        expect perfect matches for those
3451    checkpoint46e_pre
3452    
3453    checkpoint46d_post
3454    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3455      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3456      case of pressure coordinates. eosType='JMD95Z' in
3457      combination with buoyancyRelation='OCEANICP' now causes an error.
3458    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3459      in find_alpha/beta.
3460    checkpoint46d_pre
3461    
3462    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3463      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3464    
3465    checkpoint46c_post
3466    o Changes necessary for ocean in p-coordinates
3467     -  Added new buoyancy relation = 'OCEANICP'
3468     -  Added new parameters = gravitySign (this used to be contained inside
3469        the factor dRdZ which I added when we first switched to R coordinates).
3470     X GM/Redi is not compatible (yet)
3471     X bottom drag and no-slip need to be debugged.
3472    checkpoint46c_pre
3473    
3474    checkpoint46b_post
3475    o Added new equation of state -> JMD95Z and JMD95P
3476      - EOS of Jackett and McDougall, 1995, JAOT
3477      - moved all EOS parameters into EOS.h
3478      - new routines ini_eos.F, store_pressure.F
3479    o Added UNESCO EOS, but not recommended because it requires
3480      in-situ temperature (see JMD95)
3481    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3482      unesco.f to be used with POLY3
3483    checkpoint46b_pre
3484    
3485    checkpoint46a_post
3486    o Added (atmospheric) pressure loading
3487      - new field in FFIELDS.h, etc...
3488      - new cpp flag ATMOSPHERIC_LOADING
3489    o Changed hFacC to _hFacC in calc_phi_hyd.F
3490    o Added SHORTWAVE_HEATING to some files for consistency
3491    checkpoint46a_pre
3492    
3493    checkpoint46
3494    further merges from release1_p5
3495    o new ctrl package
3496      - adopted from ECCO environment to enable optimization
3497      - added Eliassen Palm fluxes to controls
3498    o added Eliassen Palm flux controls to gradient check package
3499    o cost package
3500      - Compatible with new ctrl package
3501      - added Eliassen Palm cost hooks
3502      - modif's of existing cost functions
3503    o Adjoint-related bug fixes in kpp:
3504      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3505      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3506    o autodiff package
3507      - flow directives:
3508        + new for S/R do_the_model_io
3509        + enhanced for S/R checkpoint
3510        + new gmredi.flow
3511      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3512        disable adcommon.h/g_common.h by default.
3513      - fixed problem for adjoint of global_max
3514    o modified verification/carbon/
3515    o New setup for adjoint of global_ocean
3516    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3517    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3518    o incorporated hooks for sponge layer code (external_forcing.F)
3519    
3520    checkpoint45d_post
3521    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3522  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3523    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
3524    o add new parameter deltaTfreesurf for free-surface time stepping
3525    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3526  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3527  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3528  o add new flags:  o add new flags:

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