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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.1000 by gforget, Wed Jun 11 18:31:22 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 pkg/autodiff: more flexibility in zeroadj.
8      model/src: modifying do_oceanic_phys.F accordingly.
9    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
10    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
11      special setup of gmredi for which the adjoint is stable
12      enough for parameter optimization.
13    o bridging the gap between eddy stress and GM.
14      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
15          along with a change in CPP option (now ALLOW_EDDYPSI).
16      -> when using GM w/ GM_AdvForm:
17          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
18          is applied either in the tracer Eq. or in momentum Eq.
19          depending on data.gmredi (intro. GM_InMomAsStress).
20      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
21      The key modifications are in model/src/taueddy_external_forcing.F
22      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
23    checkpoint59r
24    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
25      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
26      fix option to read coriolis(@ cell-corner) from files with CS-grid.
27    o pkg/mnc: add some attributes to standard 1D-coordinate variables
28    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
29      mass points, when using mnc for output
30      - add runtime parameter (missing_value, missing_value_int) to override
31        default (which is the value of getcon('UNDEF'))
32    o pkg/mnc: prepare mnc for the actual use of missing values with the
33      diagnostics package: small fix in mnc_cw_readwrite.template and more
34      initialisation of never used fields
35      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
36      versions
37    o pkg/thsice/thsice_ini_vars.F added default initial values so that
38      thermodynamics sea ice solver does not blow up when some initial fields
39      are missing.
40    o move from external_forcing_surf.F to ini_forcing.F
41      the p-coord. hack consisting in using pLoad to set phi0surf ;
42      update output of tutorial_global_oce_in_p (affected @ truncation level).
43    o Freshen up a bit hs94.1x64x5, notably:
44      remove rotationPeriod and tRef=5*0. (adjoint only), and add
45      exactConserv=.TRUE.
46    o pkg/generic_advdiff:
47      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
48      applies to files where Temperature & Salinity 2nd Order moments are used.
49    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
50      this uses a dynamically allocated internal state data structure
51      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
52      and requires a fortran 90 compiler
53    
54    checkpoint59q
55    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
56       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
57    o Refresh tutorial_global_oce_biogeo, notably:
58      - change bathymetry (put back seamounts in ACC, use hFacs)
59      - change EOS (POLY3 --> JMD95Z)
60      - use Bryan-Lewis vertical diffusivity
61      - use multidimensional advection
62      - remove old virtual virtual in dic pkg, now done through ptracer pkg
63      - change a couple of parameters in dic pkg
64    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
65    o pkg/obcs: change default to OBCSfixTopo = .true.,
66      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
67      - replace "debugMode" with "debugLevel .GE. debLevB"
68    o implementation of TAF directives for gchem,cfc,dic
69    o remove "exp5" (replaced by tutorial_deep_convection).
70    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
71      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
72      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
73      --> changes results in exp4, seaice_obcs
74    o tutorial_deep_convection :
75      update the set-up and increase resolution and domain size ; start
76      from pseudo initial conditions = output at t=120mn in order to see
77      something happening when running testreport.
78    o pkg/seaice: add os7mp as an advection scheme
79                  add check for advection schemes
80                  add a flag for restoring T and S underneath sea ice
81    o pkg/my82: add netcdf-support and diagnostics
82    o thsice pkg:
83      - Now hsMax limits snow height by turning it into ice following
84        flooding scheme (and now conserving energy)
85      - Slight rewriting of the formula in thsice_calc_thick.F
86      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
87      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
88    
89    checkpoint59p
90    o gchem / dic / cfc :
91      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
92      - add new parameter files: "data.dic" & "data.cfc" ;
93      - various re-arrangement in initialisation & header file ;
94      - fix tutorial_global_oce_biogeo for multi-threaded test.
95    o pkg/dic: test for "pickup_dic" file when restarting ;
96      if no pickup-file, can restart with a re-initialised pH (same as it did
97      before) providing pickupStrictlyMatch is set to False.
98    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
99      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
100    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
101      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
102    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
103     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
104       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
105    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
106       scheme to use for vorticty-term ;
107     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
108       (with default selectVortScheme, return to original discretisation)
109     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
110    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
111    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
112      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
113      also fix diagnostics VISCAHW & VISCA4W.
114    
115    checkpoint59o
116    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
117    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
118      move a few statemens out the main loop into separate loops
119    o pkg/shelfice:
120      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
121        (kg/m^2/s), does not break tests, because in verification/isomip,
122        rhoConstFresh=rhoConst (by accident)
123      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
124      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
125        new file model/src/seawater.F, so that they are available for all pkgs.
126      - convert potential temperature into in-situ temperature. This changes the
127        isomip tests => update tests
128    o add a flag writePickupAtEnd (default=true) to be able to suppress
129      writing a pickup at the last timestep
130    o tools/mpack-1.6 :
131      - disable automake (not working) and autoconf (not needed).
132      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
133        also cleaner with much less compilation warnings.
134    o pkg/profiles:
135      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
136      (for "less than 32 characters name" compiler requirement)
137    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
138      conditions that have a different sampling frequency than S/T/U/V obcs
139    o pkg/diagnostics (stats-diags):
140      - fix global Min/Max in case 1 processor get only empty tiles
141    o genmake2: replace (4 times)
142         make genmake_tc_1.o >> genmake_warnings 2>&1
143      with
144         COMM="$CC $CFLAGS -c genmake_tc_1.c"
145         echo $COMM >> genmake_warnings
146         $COMM >> genmake_warnings 2>&1
147      to make genmake2 always see the value of CC as specified in the optfile.
148    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
149      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
150      - modify verification advect_cs test to test SOM-advection on CS-grid.
151    o pkg/ctrl:
152      - Rewrite of ctrl_map_ini_ecco.F,
153        introducing a generic routine (ctrl_map_ini_gen.F).
154      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
155    
156    checkpoint59n
157    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
158      number in dedicate array "hdiag":
159      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
160        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
161      - many small changes (integer format) for large number of diagnostics
162      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
163        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
164    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
165      usingSphericalGrid, this allows to define the rotated grid coordinates
166      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
167      geographical coordinates according to the inverse of the rotation defined
168      by the Euler angles, so that Coriolis parameter and online-interpolation by
169      exf works with the geographical coordinates on XC/YC/XG/YG.
170      Naturally, this feature does not work with all packages, so some
171      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
172      profiles), because there the coordinates are assumed to be regular
173      spherical grid coordinates.
174    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
175      - introduce isopycnal diffusion coefficient control.
176    o tools/adjoint_options:
177      - additional control vector components.
178    o pkg/mnc: have mnc create marginally meaning full coordinate variables
179      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
180    o pkg/mypackage:
181      - add example of read/write pickup for state-var ;
182      - add entry points to the main code for state-vars diags & write-pickup.
183    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
184      transitions for useExfYearlyFields
185      - add new subroutine that determines the file to read from for
186        use*YearlyFields = .TRUE. and .FALSE.
187      - add a verification experiment to global_with_exf that tests
188        useExfYearlyFields with USE_EXF_INTERPOLATION defined
189    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
190      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
191      subroutines (which could be generated from a template, because they are
192      almost identical), for now they are included in obcs_prescribe_read.F for
193      simplicity
194    o pkg/exf:
195      - add a little more diagnostic to exf_interp_read (in analogy to
196        mds_read_field, can be turned off with debugLevel < debugLevA=1)
197      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
198        ugly but fast by unrolling short inner loops, inserting a unroll=8
199        directive in routine lagran, and splitting a loop and making do while the
200        outermost loop (the latter requires the intoduction of index arrays)
201    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
202    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
203      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
204    o verification/seaice_obcs: updated for restart test and latest options
205    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
206      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
207      for now this is only available for the C-grid code and also within
208      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
209    
210    checkpoint59m
211    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
212      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
213    o gad_som : fix flux output (& diagnostics) to have same units as other  
214      advection scheme fluxes (was previously multiplied by deltaT).  
215    o added verification/seaice_obcs both to test seaice open boundaries
216      and to provide an example matlab scrpt for generating them
217    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
218    o pkg/salt_plume: clean up salt_plume_frac.F to
219      remove redundancy in PlumeMethod 1 and 4
220    o pkg/kpp: added saltplume diagnostics
221    o pkg/obcs and pkg/seaice:
222      - do not set uice and vice to zero when OB*icefile are unspecified
223      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
224      - moved seaice tracer obcs after call to seaice_growth
225    o pkg/salt_plume: added various options for salt plume depth
226      criterion and for vertical distribution of the salt
227    
228    checkpoint59l
229    o pkg/ptracers: new version of ptracers pickup:
230      read meta file and write only fields which are needed to restart.
231      ( same logic as main pickup file ; also using pickupStrictlyMatch )
232    o pkg/seaice:
233      - add timescale for melting due to warm mixed layer as a means of
234        setting SEAICE_availHeatFrac more conveniently
235      - add a CPP-flag/runtime parameter check for flooding algorithm
236      - reformulated availHeat in seaice_growth.F to be independent of AREA
237    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
238      unit changes
239    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
240    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
241      SX vector computer.
242    o pkg/seaice:
243      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
244        seaice forcing fields can now be read only through pkg/exf
245      - removed some unused halos
246    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
247    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
248      or U/VICE from U/VWIND before computing U/VSTRESS
249    
250    checkpoint59k
251    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
252      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
253    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
254      all experiments pass when compile with un-initialised var. checking option.
255    o added pkg/salt_plume
256    o script to test restart (for now, in MITgcm_contrib/jmc_script)
257    o pkg/seaice: new read/write pickup version.
258      read meta file and write only fields which are needed to restart.
259      ( same logic as main pickup file ; also using pickupStrictlyMatch )
260    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
261    o lab_sea.hb87: modify the domain & update output.hb87.txt :
262      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
263      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
264      process. Fixed here by closing the domain at the Northern boundary.
265    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
266    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
267      a set of consecutive levels in/from a 3-D array.
268    o pkg/ptracers:
269      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
270      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
271    
272    checkpoint59j
273    o in pkgs: dic, obcs, offline, rbcs:
274      standard way to compute coeff. for time interpolation between 2 time reccords
275      which retains full precision (& make results less dependent on compiler).
276      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
277    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
278      packages instead of reading ice cover and wind speed separately
279    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
280     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
281      to allow to compile customized code before the update)
282    o cleaning-up:
283      - fix CPP instruction syntax in pkg/obcs
284      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
285        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
286      - fix some threads issue in IO parts.
287    o pkg/dic:
288      - add tons of "_d 0" (--> much better testreports !)
289       and then update outputs of tutorial_global_oce_biogeo
290    o pkg/mom_fluxform:
291      add a special version of momentum advection intended to conserve momentum
292      next to a bathymetry step or a coastline edge. (default = off = #undef)
293    o new read/write pickup version:
294      - for now, only implemented for main (mdsio) pickup file.
295      - write out only what is needed to restart; merge pickup_nh , pickup_ph
296        and main pickup together.
297      - read meta file; read only what is needed to restart; stop if a field
298        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
299        if it make sense (even if the restart is not perfect).
300      - if no meta file, assume that pickup to read corresponds exactly to
301        a pickup that would currently be written.
302      - read pickup written in the old format (until checkpoint59i) if it
303        recognizes an old meta file (no field-list).
304      - add a meta file in exp. which starts from a pickup: 2 cases:
305        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
306         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
307        b) a meta file describing the content of the associated pickup file
308         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
309    o pkg/mdsio & pkg/rw:
310      - new routine to read a meta file ; new set of routine to read
311        Multiple-fields file (with meta file).
312    o added open boundary conditions capability for seaice
313        HSNOW, HSALT, UICE, and VICE
314    
315    checkpoint59i
316    o adjoint:
317      * fix multiDimAdvection adjoint
318        (partial recomputation problem by TAF for fVerT(:,:,kDown)
319        and comlev1 size definition (maxpass vs. max. number of tracers)
320      * verification/global_ocean.90x45x15 adjoint now tests
321        NLFS and multiDimAdvection using DST3 (=30)
322      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
323    o pkg/kpp: add "_d 0" to real constant (if missing);
324      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
325      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
326    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
327      for internal parameters related to restart process (formerly from PARAMS.h)
328      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
329    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
330      as argument. (only atm2d & obcs write_pickup have not yet been updated)
331    o pkg/monitor:
332      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
333      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
334      - account for deep Atmosphere factor and density factor (anelastic)
335    o added open boundary conditions capability for seaice HEFF and AREA
336    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
337      thermodynamics
338      - requires a little reorganization, which affects the testreport results
339        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
340        so that now the conservative form is tested
341      - add a few comments
342    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
343    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
344    o add new diagnostics to seaice: advective, diffusive fluxes (only for
345      multidim-advection, for scheme 2 they are not filled) and transports,
346      thermodynamic growth rates
347    o change units of EmPmR (inside the code, + within coupling interface)
348      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
349      Affects results @ truncation level (cg2d match) and update output of
350       experiments: lab_sea(6), global_ocean.90x40x15(10),
351      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
352      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
353      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
354      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
355    
356    checkpoint59h
357    o pkg/exf:
358      - improve vectorization by moving if-statement out of loops in
359        exf_mapfields, exf_radiation
360      - exf_bulkformulae.F: introduce 2D fields and vectorize code
361    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
362    o testreport:
363      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
364        monitor & update offline_exf_seaice exp. output.
365      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
366    o pkg/seaice:
367      - bug fix in the evp solver: boundary conditions were affected be
368        masking of zMax/zMin (changes results)
369      - minor bug fix in boundary conditions in seaice_calc_strainrates
370        (changes results for no_slip)
371      - seaice_lsr.F: make interpolation of eta dependent on boundaries
372      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
373      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
374        stress formulation and no-slip boundary conditions
375    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
376      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
377    o pkg/seaice: a first HSALT time stepping equation has been checked in
378    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
379      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
380      without requiring DO-IF statements
381    o pkg/thsice:
382      use continuous power-law function for partition of energy between lateral
383      melting/freezing and thinning/thickening ; old code using step function
384      still available with #undef THSICE_FRACEN_POWERLAW
385      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
386    o testreport: change AD testing : check against results/output_adm.txt
387      using same scripts as for forward test.
388    
389    checkpoint59g
390    o adjoint testing: in preparation for changing testreport:
391      - output format: cost and grad written on separated lines
392      - ad output results in directory "results" (instead of "results_ad")
393    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
394    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
395    o pkg/ecco: allow user defined cost function contributions
396    o testreport:
397      Allow to choose (per experiment) the list of tested output variables
398       and the main variable (used to issue a pass/FAIL ) ;
399      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
400      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
401      Also modify printing of summary:
402       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
403       b) echo the list of tested variables in the individual summary.txt of
404          each experiment.
405    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
406      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
407      (but still depend on the tile decompostion of the domain).
408    o pkg/seaice: change a discretization detail to make the B-grid code
409      "more symmetric". This change is likely to remove all "ridges/leads" that
410      where quasi-aligned with the grid in B-grid solutions. It may also be
411      the solution to the stress coupling issues with the B-grid.
412    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
413      remove .cvsignore from input dir. (since testreport no longer run here).
414    o pkg/thsice:
415     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
416     - fix reshaping of sea-ice just after advection:
417       melt all the ice only if ice-volume is too small.
418     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
419       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
420     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
421    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
422      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
423    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
424      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
425      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
426      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
427      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
428      -> update output.txt
429    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
430     this affects truncation error: -> update output.txt of exp:
431      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
432      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
433    
434    checkpoint59f
435    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
436    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
437      a bounded range (in forward mode)
438    o pkg/ecco, ctrl, autodiff and mom_common:
439     internal parameter controls, completements of implementations
440    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
441    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
442      (not seem any difference in testing results).
443    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
444       at face corners.
445    o pkg/generic_advdiff:
446     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
447      loop range indices for computing vertical advection tendency
448      and do the calculation in the interior only (no overlap) ;
449      for now, only implemented for SOM advection (to save CPU time).
450     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
451    o exch2 adjoint
452      First set of changes:
453      - add exch2 hand-written adjoint templates
454      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
455        This will require cleanup in pkg/autodiff/*.F
456        (changed routines currently kept separate in verif. code/)
457      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
458        that used to hide exch2 or cubed-sphere specific code
459        (commented via 'cph-exch2')
460    o pkg/seaice
461      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
462    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
463       output of global_ocean.cs32x15.thsice .
464    
465    checkpoint59e
466    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
467      for B-grid vector (not yet tested) and C-grid vector (<- only used
468      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
469    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
470      (#ifdef ALLOW_SALT_PLUME)
471    o gather_2d/scatter_2d: removed halo regions
472    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
473      scheme and the corresponding test case (under front_relax dir). For now,
474      only available with Skew-flux form and not yet tested in realistic set-up.
475      adjoint: store directives updated, but gradient checks deteriorated,
476      so maybe GM/Redi adjoint is now broken.
477    o seaice adjoint
478      * add AREA, HEFF, HSNOW as control variable
479        (should not change lab_sea results)
480      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
481    o pkg/seaice:
482      * added computation of saltFlux in seaice_growth;
483        For time being, sea ice salinity is assumed constant
484        contribution of snow flooding to freshening of sea ice is neglected.
485        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
486        defaults to 0.0 in order to maintain backward compatibility.
487        Typical values for SEAICE_salinity are 4 to 10 g/kg.
488      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
489      * added SEAICE_availHeatFrac, which specifies fraction of surface level
490        heat content used to melt or grow ice
491      * commented out cap of HICE: it helps keep ice thinner
492      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
493      * applied OBCS T/S mask to HEFFM sea ice mask
494    
495    checkpoint59d
496    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
497     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
498     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
499    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
500     and change default value of parameter "GM_Small_Number";
501     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
502       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
503       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
504    o pkg/ecco: cost function when applying pkg/smooth to controls
505    o pkg/ctrl: add forcingPrecond run time parameter
506    o pkg/seaice:
507     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
508     - fix bug in metric terms of u-equation in LSR solver (implicit part),
509       changes verification/lab_sea
510     - rearrange implicit part of u-equation in LSR solver to make it easier to
511       read, understand, and debug. This causes changes at the truncation level.
512     - fix (serious) bug in the boundary conditions (sign error in the implicit
513       part) of the LSR solver. Changes all LSR results.
514     - fixed problem with HSNOW initialization to avoid thick snow when AREA
515       is initilized with small values - does not change lab_sea results.
516     - added HsnowFile initialization capability
517    o pkg/smooth: addition to model/src and pkg/ctrl so allow
518     initialization of pkg/smooth and application to control vector
519    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
520    o dependencies: pkg/profiles requires pkg/cal
521    o pkg/profiles:
522     - added option ALLOW_PROFILES_GENERICGRID
523         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
524         that interpolation information (grid points and coefficients) is provided
525         within the netcdf input files.
526         -> sample matlab scripts can be found in MITgcm_contrib/gael
527         that allow you to prepare netcdf input files.
528     - also modified: cleaner include statements, cleaner error print statements,
529       cleaner stops when error, and more tests of the netcdf input files consistency.
530    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
531    o pkg/seaice:
532     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
533       requires a new routine: seaice_diagnostics_fill.F
534     - make sure that seaice does not move if not forced (pressure replacement
535       method, Hibler and Ip, 1995), changes results
536     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
537     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
538       It is turned off by default (=-1.), because it changes the results.
539     - make it possible to read AREA from a file, too.
540    
541    checkpoint59c
542    o add S/R and diagnostics for oceanic mixed-layer depth
543    o move GMRedi call after all vertical mixing schemes (including KPP)
544    o pkg/thsice:
545     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
546      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
547    o pkg/obcs:
548     - bug fix for balance code
549    o pkg/seaice:
550      - allow values of SEAICE_elasticParm > 1
551      - add new parameter SEAICE_evpTauRelax as an alternative
552        to SEAICE_elasticParm
553      - make lsr boundary conditions free slip (by default), changes result
554      - add code for no slip boundary conditions for lsr
555      - set minimum of zeta to zero (and not 4e8) (changes results)
556      - add a cap on AREA after advecting AREA if seaice_growth is not called
557    o change calculation of Visbeck K:
558      - no longer depend on tapering scheme; instead, compute slope (limited
559        by GM_maxSlope). this is equivalent to what was comuted before with
560        clipping or linear tappering.
561      - fix vertical averaging (wrong by 1/2 level)
562      - leave the old version (but will not be maintained) within
563        #ifdef OLD_VISBECK_CALC / #endif
564      - update output of exp. ideal_2D_oce
565    o change error catch in calc_r_star to improve vectorization
566    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
567      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
568    o adjoint:
569      Re-organized adjoint checkpointing according to Matt Mazloff
570      (but with modifs/completions/cleanups)
571      Storing is now bundled into large arrays to optimized I/O
572      (and second step in cleanup of the_main_loop)
573    
574    checkpoint59b
575    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
576      - export/import (between ocean & coupler) fields needed for ocean DIC.
577    o pkg/seaice:
578      - get rid of three more exchanges seaice_calc_viscosities (required
579        different loop boundaries in seaice_lsr and seaice_ocean_stress)
580      - bug fix in seaice_ocean_stress (update of lab_sea required)
581      - reduce loop boundaries to necessary minimum also in seaice_evp
582      - go back to the old way of computing deltaC/Z as the adjoint likes that
583        better
584    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
585      passive tracer to an Age Tracer) + update output.txt
586    o pkg/exf:
587      - implement A-grid / C-grid selection for wind-stress input files.
588      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
589      for now, in exf_bulk_largeyeager04.F only :
590      - change implementation for case where windspeed + 2. components wind-stress
591        are read-in. AND use rhoConstFresh to convert evap.
592    o pkg/seaice:
593      - use correct EXCH_UV for wind-forcing (on A-grid).
594      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
595        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
596    o pkg/exf:
597      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
598      EXF_INTERPOLATION:
599      - merge global_with_exf/code version of exf_interp_read.F
600        to the main code ;
601      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
602        reading the file ; Important: This options needs to be defined to recover
603        previous code.
604        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
605      - no longer loose real*8 precision along the way when using exf_iprec=64.
606    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
607      - change discretisation of evp-solver in order to avoid another exchange
608        (changes lab_sea) and clean up a little
609      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
610        help the adjoint (this also changes the results slightly)
611      - add a few "_d 0" where they had been missing in seaice_evp.F
612      - cleaning up: remove unused seaice_calc_rhs.F
613    o pkg/exf: some cleaning-up:
614      - change various "constants" into runtime parameters
615      - cleaned-up Large&Yeager04 routine which should eventually
616        replace exf_bulkformulae.F (changed names of S/R and CPP)
617        and merged various ALLOW_ATM_WIND options
618     only used with thsice pkg (in thsice_get_exf.F):
619      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
620        which are used when useStabilityFct_overIce=TRUE (= the default)
621      - change default values of ice & snow emissivity and scale downward LW
622        by ice & snow emissivity.
623    o pkg/thsice:
624     fix few little problems, in thsice_calc_thickn.F:
625      - growth vertically (and not laterally) if iceFrac == iceMaskMax
626      - melt only laterally if hIce < hThinIce (as the comments say)
627      and in thsice_extend.F:
628      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
629      - start to form ice as soon as the minimum ice-volume is reachable.
630     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
631      and cpl_aim+ocn
632    o pkg/kpp
633     - move computation of surface related input fields to KPP into a new
634       subroutine kpp_forcing_surf.F
635     - remove wrong (within bi,bj loops) EXCH calls.
636     - little cleaning (add argument myThid in last position, cvs header ...)
637     - for now, fix conservation problem by exchanging KPPviscAz (may not
638       be the best fix)
639    o pkg/seaice
640     - check for inconsistent evp parameter/cpp-flag combination
641     - remove leftover errIO flat for obsolete name list error handling
642    o OpenAD
643     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
644    
645    checkpoint59a
646    o pkg/seaice: some parameter clarifications and a little bit of clean up
647    o pkg/thsice: rename run-time parameters:
648       himin       -> hIceMin
649       himin0      -> hThinIce
650       hihig       -> hThickIce
651       i0          -> i0swFrac
652       transCoef   -> bMeltCoef
653       frac_energy -> fracMelting
654      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
655       with default values (for now) that do not change the results.
656      remove old version of thsice vars advection in pkg/seaice.
657    o in FFIELDS.h:
658      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
659      - make pLoad & sIceLoad always available (but still only used if
660         ATMOSPHERIC_LOADING is #define).
661    o pkg/kpp: replaced _KPP_RL with _RL
662    o bug fixes for vertical diffusivity computations when both KPP and
663        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
664        are no longer updating the vertical diffusivity array
665        (passed as argument) but are (re-) setting those arrays.
666    o pkg/seaice: fix bug in evp solver, while doing that
667      - change (improve?) discretization of stress computations for both
668        cgrid-lsr and evp solver
669      - add a new routine to compute strain rates
670      - the above changes lab_sea results
671      - add no slip conditions for evp solver (off by default), lsr-version
672        may follow
673      - fix exchange for shear at Z-points (does not change lab_sea)
674      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
675        (to force the user to pick a time step since there is not "safe" way
676        of choosing it)
677      - add principal stress diagnostics
678      - rearrange fields for evp a little to avoid having to call a: too many
679        exchanges and b: exchanges for stress trensor components which we do
680        not have.
681      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
682        of evp, complete rewrite for lsr case (latter is does not yet work
683        in all cases)
684    o pkg/kpp: add code to have mixing in shelf ice caverns
685      - add myThid to all kpp routines (long overdue)
686    
687    checkpoint59
688    o pkg/exf:
689      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
690        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
691      - move exf header files from lower_case.h to UPPER_CASE.h ;
692        add missing cvs Header & Name
693      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
694      - add namelist param. selectStressGridPosition, exf_monFreq
695      - retire many _CLIM routines, and remove data.exf_clim
696        + params moved to data.exf
697        + climsst, climsss now handled by exf_set_gen, i.e.
698          climss?period=0 refers to constant field,
699          climss?period=-12 to monthly forcing
700      - split up namelists in data.exf
701    o pkg/seaice:
702      - remove seaice_exch and seaice_exch_uv
703      - remove superfluous exchange of theta
704      - add myThid to seaice_budget_ocean/ice
705      - add new interface for atmospheric wind forcing (C-grid only)
706        + new routine
707        + two new field (taux, tauy for stress over ice)
708        + removed one global field (DAIRN) for C-grid case only
709    o pkg/thsise
710      - 2nd set of modifs for thsice adjoint in conjunction with exf
711    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
712    
713    checkpoint58y_post
714    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
715      vertical diffusivity, similar to that in MOM4; turned on using
716      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
717      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
718    o Added capability for 3D specification of background vertical diffusion
719      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
720      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
721      "data" file that contains the 3D vertical diffusivity coefficients.
722    o ice dynamics (pkg/seaice) with thsice thermodynamics:
723      - add code within pkg thsice to advect & diffuse sea-ice fields
724      similar to (and will replace) what has been added in  seaice_advdiff.F,
725      but: - conserving Mass, Heat & Salt.
726           - better when using non-linear advection scheme (not yet fully tested)
727           - can also be used in atmospheric set-up (for now, only the diffusion).
728    
729    checkpoint58x_post
730    o IO option for global-file compact format:
731      - add options when generating topology (utils/exch2/matlab-topology-generator)
732      - add I/O capability (pkg/mdsio).
733      - adapt utils/matlab/rdmds.m to read this format.
734      for now long-line format not yet supported by pkg/mdsio (& exch2).
735    o shelfice: add a few diagnostics
736    
737    checkpoint58w_post
738    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
739      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
740      (and replace horiVertRatio in NH code).
741      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
742                         and tutorial_plume_on_slope (sensitive to truncation)
743    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
744      directly to drive seaice model (C-grid only)
745    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
746     - reintroduce computation of wind from stress,
747     - compute tau (in exf_bulkformulae.F) from windstress averaged to
748       mass points to avoid tau = 0
749     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
750    o rdmnc.m: make it work with "global" files created with gluemnc
751    o rdmnc.m : some improvements in dealing with singleton dimension
752      (tested on all testreport mnc output files).
753    o genmake2: disable pkg/profiles if netcdf test fails.
754    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
755    o move call to cal_readparms up to make calendar parameters/variable available
756      to all packages
757    
758    checkpoint58v_post
759    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
760      useDynP_inEos_Zc tested.
761    o pkg/exf: changes to properly interpolate/mask/scale initial fields
762    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
763      and portions thereof.  See read_cs.txt for description and examples.
764    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
765      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
766      following the great-circle arc between those 2 points.
767    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
768      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
769    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
770     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
771     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
772     - still needs work (not working with some options ; efficiency to improve)
773       and serious testing.
774     - use this scheme for temperature & salinity in 2 advection test exp.:
775       advect_xy & advect_xz, respectively.
776    
777    checkpoint58u_post
778    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
779    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
780    o testreport: add option "-skipdir" to skip some test.
781    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
782      momentum calculation.
783    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
784    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
785      remove checkpoint.F and the_correction_step.F (no longer used);
786      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
787    o add option (linFSConserveTr) to correct for tracer source/sink due to
788      Linear Free surface
789    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
790    o pkg/thsice: fix reading mnc-pickups
791    
792    checkpoint58t_post
793    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
794    o pkg/mdsio:
795     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
796       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
797       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
798     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
799     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
800       either MDS_READ_FIELD or MDS_WRITE_FIELD )
801     - new S/R (to replace MDSWRITEMETA), which allows to write more
802       informations (variable names, time ...) to meta files.
803     - modify rdmds.m to give back the meta file content.
804    o pkg/diagnostics: change vertical interpolation to be safer, and more
805       flexible (define p-levels to interpolate to in data.diagnostics);
806      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
807       diagnostic pointer.
808    o pkg/seaice: more cleaning up of seaice_growth, added many comments
809    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
810    o fix multi-category seaice:
811     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
812       SEAICE_MULTICATEGORY
813     - fix short wave heat flux
814    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
815       and allow to use EVP solver. Change forward lab_sea: test both EVP
816       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
817    o Initial check-in of lab_sea adjoint
818      (very similar to natl_box_adjoint/code_seaice)
819      * used C-grid and EVP solver
820      * used KPP, GM/Redi
821      * uses inAdExact=.TRUE.
822      * gradient checks fail for both ADM and TLM
823        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
824        f.d. gradients actually seem more problematic than ADM, TLM gradients;
825        issue is related to forward mismatch between g77 an ifort
826    o pkg/seaice: overhaul of thermodynamics
827     - growth.F and groatb.F are replaced by new routine seaice_growth.F
828     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
829     - move a few global fields out of SEAICE.h into seaice_growth.F and
830       make them 2D (FICE/QNETO/ ...)
831     - remove FO (it is the same as QNETO)
832     - introduce a few local fields to avoid modifying external fields such
833       as atemp, etc.
834    
835    checkpoint58s_post
836    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
837      changed exf_set_gen.F so that
838        genperiod=0 means input file is one time-constant field and
839        genperiod=-12 means input file contains 12 monthly means
840    o CG2D: use pre-computed solver main-diagonal (stored in common block);
841      this affects truncation error ; generate new output file for exp. which
842      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
843        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
844        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
845        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
846        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
847        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
848    o start implementation of deep-atmosphere and anelastic formulation
849    o verification: remove 2nd copy of input files and use script "prepare_run"
850      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
851    o mom_common/vecinv/fluxform: fix a few initialisation isssues
852    o profiles: fix for multithreaded case
853    
854    o diagnostics: rename few diags:
855      s/'PRESSURE'/'RCENTER '/g
856      s/'TICE    '/'oceFreez'/g
857      s/'TAUX    '/'oceTAUX '/g
858      s/'TAUY    '/'oceTAUY '/g
859      s/'SWFLUX  '/'oceQsw  '/g
860      s/DIFx/DFxE/g
861      s/DIFy/DFyE/g
862      and add few ocean-forcing diagnostics:
863      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
864    o modifications to pkg/seaice/growth.F and budget.F, which change results of
865      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
866      as actual snow thickness.  It now refers everywhere to effective snow
867      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
868    
869    checkpoint58r_post
870    o modifications to pkg/seaice/growth.F, which change results of
871      lab_sea experiment: fixes pertain to melting snow over open water, to
872      masking EVAP under sea ice, and to using the correct AREA variable for
873      computations of EVAP, PRECIP, HSNOW, and GHEFF
874    o add ability to read bathy, salt, and theta using MNC (off by def)
875    o add flooding algorithm and advection of HSNOW for pkg/seaice;
876      both are turned off by default and do no change any results
877    o seaice advection with pkg/thsice: a step toward the use of non-linear
878      advection scheme, but #ifdef or commented out for now (requires more EXCH).
879    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
880      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
881      in natl_box (affects results @ truncation level: update output.txt)
882    o multi-threading and IO:
883      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
884      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
885        (needed to work with SingleCpuIO): tested in all verif. exp.
886    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
887      affects the results (but none of the verification test uses this scheme).
888    o Adding some pkg/diagnostics capability to pkg/seaice
889      (will certainly be subject to changes)
890    o ctrl: adding new control variables:
891      lwflux, lwdown, evap, snowprecip, apressure, runoff
892    
893    checkpoint58q_post
894    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
895      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
896      high_res_cube configuration by 4% on Columbia.
897    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
898      add (in global_with_exf/code) a version of EXF_INTERP_READ without
899      dynamical allocation (seems to work in multi-threaded).
900    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
901      single CPU io) so that TAF does not have to see EESUPPORT.h
902    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
903    
904    checkpoint58p_post
905    o obcs: stop if obcs is used with useCDscheme = .true.
906    o shelfice:
907     - fix a sign error so that no slip at shelfice interface works
908     - remove stop for combination non-hydrostatic code and shelfice. That does
909       not mean, that the results are correct, but at least they are numerically
910       stable
911    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
912    o added adjoint exch routined for all exch*3d* routines
913      and updated flow directives
914    
915    checkpoint58o_post
916    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
917      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
918    o change controling S/R for writing pickup file (new S/R do_write_pickup)
919      and clean-up reading/writing of pickup files.
920    o fix local version of read/write pickup (NH part) in rotating_tank/code
921    o simplify EXCH interface:
922     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
923     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
924    o added the regrid package
925    o shelfice:
926     - add a simple boundary layer scheme to reduce noise
927     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
928    
929    checkpoint58n_post
930    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
931       local variable (not in common block).
932    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
933      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
934      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
935        to work with SingleCpuIO.
936    o add "_d 0" to real constant of pkg/cfc subroutines ;
937       update exp. cfc_exemple & tutorial_cfc_offline output files.
938    o multi-threading and IO:
939      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
940        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
941      - barrier before and after reading.
942      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
943      - avoid using MDS_WRITELOCAL for LAND pkg output.
944      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
945        common-block variables ; Allows multi-threading with master-thread IO.
946    o change default MAX_NO_THREADS from 32 to 4 ;
947      and stop cleanly when MAX_NO_THREADS is too small.
948    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
949    
950    checkpoint58m_post
951    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
952       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
953    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
954       keep global_ocean.90x40x15 (for AD testing) with former secondary test
955       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
956    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
957        add MITgcm_tutorials (= code + all the tutorials)
958    o ecco, option to compute cost for total ssh (mean+anom)
959    o consistent with addition of ptracer and ssh in pkg/profiles
960    o profiles: adding ptracer and ssh
961    o testreport: change multi-test output-file name
962      (from output.txt.{name} to output.{name}.txt)
963    o profiles: now ok for mutli-tiles case
964    o seaice: add 4 parameters for different advection schemes for area,
965      (effective) seaice thickness, enthalphy, and snow height. Their default
966      is the standard parameter SEAICEadvScheme
967    o calc_gw:
968     - add cosFacU in zonal viscous flux (harmonic.visc.).
969     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
970       of tutorial_plume_on_slope.
971    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
972    o calc_gw: true flux-form, account for horizontal grid spacing.
973      update rotating_tank results, but not plume_on_slope (affected at
974      truncation level, 11 digits).
975    
976    checkpoint58l_post
977    o calc_gw:
978     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
979     - remove side-drag for now (need to fix it); update plume_on_slope results.
980     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
981    o commit code to make SST/SSS weights spatially variable
982      (based on either variable in-situ or variable initial T/S weights)
983    o pkg/ecco:
984      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
985        now based on horizontally varying weights wthetaLev, wsaltLev
986      * cost_averagesflags now returns year indices in addition to day, month
987      * sflux balance is performed on annual basis
988        (sflxumm, sfluxmm2, bal_sfluxmm)
989      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
990        including separate counting and multipliers
991    o pkg/rbcs
992      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
993    
994    checkpoint58k_post
995    o testreport:
996     - always build in dir. "build" (if not there, mkdir build instead of building
997       & running in input)
998     - run in dir run (if it exists), in build otherwise.
999     - call prepare_run (if input/prepare_run exists)
1000     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1001    o pkg/exf modifications to interpolation and rotation routines for more
1002       reasonable treatment of North Pole singularity: for tracers North Pole
1003       value is set to northernmost zonal-mean value, for zonal velocity it is
1004       set to zero, and for meridional velocity it is set to northernmost value.
1005    o pkg/exf/exf_check_range.F
1006     - add tile index to diagnostics and move stop statement to the very
1007       end of the routine.
1008    o pkg/diagnostics: (diagnostics_main_init.F)
1009      define title of isomorphic variables according to the current config.
1010    o pkg/thsice with pkg/seaice dynamics:
1011    - fix domain of computation (interior only, required for exf) and do exchanges
1012    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1013    o towards a standard way of dealing with multi-threading in MONITOR
1014      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1015    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1016       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1017    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1018    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1019    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1020       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1021    o tracer advection:
1022     - clean-up and simplify calc_common_factors.F
1023     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1024       advection subroutine (but still not used within DST advection S/R)
1025    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1026    
1027    checkpoint58j_post
1028    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1029      from file (collects calls previously in FORWARD_STEP)
1030    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1031    o adjoint store dir. adjusted accordingly
1032    o genmake2
1033      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1034    
1035    checkpoint58i_post
1036    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1037      on wind stress (SEAICEstressFactor defaults to 1.)
1038    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1039      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1040    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1041      on CS-grid: no longer loosing mass.
1042    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1043    o pkg/ggl90: fix sloppy output and fix a bug
1044    o pkg/seaice: added SEAICEuseEVPpickup parameter
1045      - Set to false in order to start EVP solver with
1046        non-EVP pickup files when using SEAICEuseEVP
1047      - fix sign error in diffusion in seaice_calc_rhs
1048    
1049    checkpoint58h_post
1050    * Modifications for bottom topography control
1051      o replace hFacC by _hFacC at various places
1052      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1053      o add non-self-adjoint cg2d_nsa
1054      o update autodiff support routines
1055      o re-initialise hfac after ctrl_depth_ini
1056      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1057    * Adding verification for 5x5 box (4-layer) bottom topography control
1058    
1059    checkpoint58g_post
1060    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1061       used for mean seasonal cycle, mean diurnal cycle); add an example
1062       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1063    o pkg/ggl90:
1064      - add parameter (minimum surface kinetic energy)
1065      - fix bug (avoiding division by zero)
1066    o couple pkg/thsice to pkg/seaice:
1067      - modify advection in seaice to accomodate new scalar fields to be advected
1068      - only muliDimAdection scheme work with seaice/thsice
1069      - mapping of thsice-variables to seaice-variables, back and forth
1070      - does not break the verification experiments, but does not give the
1071        desired results either
1072    o pkg/seaice
1073      - make (default) second order advection a bit less confusing?
1074    
1075    checkpoint58f_post
1076    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1077      to pkg/seaice):
1078      - new routines thsice_map_exf and thsice_get_exf provide the interface
1079      - add an additional formal parameter to thsice_solve4temp
1080    o pkg/exf:
1081      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1082      - correct Stefan-Boltzmann constant
1083      - new parameter for longwave surface emittance
1084      - separate some stuff from exf_bulkformulae into new routines  
1085        exf_radiation, exf_wind
1086      - add new parameters and constants: longwave emissivity for ocean, ice
1087        and snow, evaporation parameters over ice
1088      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1089        either wind from stress or stress from wind
1090    o pkg/thSIce:
1091    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1092    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1093       and THSICE_CALC_THICKN
1094    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1095    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1096      to make debugging easier.
1097    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1098    o pkg/bulk_force:
1099      - clean-up comments and parameters ;
1100      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1101    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1102      generate new output for test-experiment: aim.5l_cs.thSI
1103    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1104      testreport accordingly
1105    
1106    checkpoint58e_post
1107    o SEAICE_CGRID adjoint done
1108    o R_STAR adjoint implemented.
1109      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1110      * need to sort out init. of h0facc, etc.
1111    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1112      to be able to use it in pure forward.
1113    
1114    checkpoint58d_post
1115    o upgrade simple test-experiment to tutorial example:
1116     step.1: duplicate the experiment and (step.2) will remove the old copy.
1117      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1118      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1119      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1120      tutorial_global_oce_biogeo    <- copy of dic_example
1121      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1122      tutorial_plume_on_slope       <- copy of plume_on_slope
1123      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1124      tutorial_global_oce_optim     <- empty for now (David ?)
1125      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1126     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1127    o correct a sign problem in cost_scat.F
1128    o obcs and ptracers: fix boundary conditions for advections schemes
1129      with larger stencil
1130    o thsice adjoint: start
1131    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1132      completeness
1133    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1134      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1135    o ptracers adjoint:
1136      * avoid extensive recomputatations
1137      * fix missing re-init. of gptr (missed by TAF)
1138    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1139      me to turn off the excessive output to STDOUT that this package produces
1140    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1141      and add those terms in Vector-Invariant formulation.
1142    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1143      if the control period (xx_hfluxperiod etc) is 0
1144    o in profiles pkg, clean routines and fix details
1145    o in ecco pkg, reading ssh data:
1146      fix problem in case the model does not start at iter0=0
1147    o fix mnc-pickup/restart for ptracers
1148    o new package prifiles:
1149      code to compute profile-based cost by Gael Forget
1150      (modifs in ecco, ctrl, autodiff)
1151    o Benign bug fix in initialization (spotted by M. Mazloff) of
1152      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1153    
1154    checkpoint58c_post
1155    o adjoint: finish NLFS adjoint and provide reference output in
1156      verification/global_ocean.90x40x15/results_ad_nlfs
1157    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1158      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1159      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1160      with SEAICE_CGRID defined.
1161    o move calendarDumps from "data" to "data.cal" and clean-up the code
1162      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1163    o add useEXF & useCAL flags (for now, set in hard-coded way)
1164    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1165      (were missing in NH mode, and wrong in quasihydrostatic mode).
1166      waiting for Chris updated version of calc_gw to add those CALLs.
1167    o fix bug in quasihydrostatic S/R ;
1168      add a test for this option: global_ocean.90x40x15.qshyd
1169    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1170      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1171    o add on/off flag useOffLine for package OFFLINE
1172    o seaice:
1173      - modify advection so that it works also on the C-grid
1174      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1175        problem in multi-tile runs with C-grid
1176      - add flags for clipping ice velocities and/or masking solver forcing
1177      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1178        C-grid solver
1179      - added a few comments to seaice_diffusion.F
1180      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1181        are now exclusive)
1182      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1183        required re-ordering the code a little:
1184       + make DAIRN global variable (defined in SEAICE)
1185       + move computation of the viscosities eta and zeta into a new separate
1186         routine (because I need to recompute them in seaice_ocean_stress.F)
1187    
1188    checkpoint58b_post
1189    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1190      update output.txt of exp. aim.5l_cs.thSI
1191    o various mnc cleanups and improvements:
1192      + shrink lookup tables by factor of ~4
1193      + better error reporting when running out of lookup space
1194      + able to handle longer path/file names (up to 500 chars)
1195    o adjoint:
1196      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1197      - TBD: "hidden" mom_vecinv recomp. in dynamics
1198    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1199     (allow to differentiate between forcing components using new integer flags:
1200      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1201     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1202    o ecco
1203      - enable trend removal from SSH anomaly obs.
1204    o adjoint
1205      - a fix for PmEpR when #undef EXACT_CONSERV
1206      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1207      - try to fix "hidden" recomp. in forward_step for NLFS
1208        (NLFS seems broken sometimes after I checked it in)
1209    o seaice:
1210     - add c-grid version of the dynamic solver:
1211       + three new routines that are the c-grid substitute lsr, dynsolver
1212         and ostres
1213       + put a few fields that were local to dynsolver into global common
1214         blocks, so that I can move the computation of stresses etc into
1215         seaice_lsr (saves coding but may break the adjoint).
1216     - replace more hardwired parameters by runtime parameters
1217     - add ice masks that mask the rhs of the implicit solvers where there
1218       is no ice (commented out in seaice_dynsolver, because i am not sure
1219       if this works properly), eventually this should replace the clipping
1220       of ice velocities in seaice_dynsolver to +/-40cm/s.
1221    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1222      include it only where its needed
1223    o move balancing of fluxes before the call of external_forcing_surf
1224    o seaice:
1225      - correct units of turning angles (now they are really in degrees)
1226      - move computation of GWATX/Y out of main routine into dynsolver
1227      - initialize GWATX/Y in seaice_init
1228    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1229      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1230    o seaice: add runtime flags for turning angles (default to zero)
1231    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1232      and trend from exf forcing and ctrl control adjustments
1233    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1234      (since checkpoint57x_post)
1235    o change the default rotation period to 86164.s = the Earth rotation
1236    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1237      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1238    o seaice advection: add code for choosing between the default (2nd order
1239      central differences) and multiDim advection schemes provided by
1240      pkg/generic_advdiff
1241    o seaice:
1242      - removed all references to SEAICE_GRID.h fields from
1243        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1244        (cubed-sphere configuration will change a little)
1245      - grid computations in seaice_init are obsolete now.
1246      - cleaned up code a little so that is easier to read (hopefully).
1247      - added new (better?) discretizations of default advection and diffusion
1248        (turn on with SEAICEuseFluxForm)
1249      - replace 1 in 3d global fields by kSurface in growth.F
1250      
1251    checkpoint58a_post
1252    o seaice:
1253      - bug fix in advect.F
1254    o shelfice:
1255      - separate shelfice load anomaly from pload (breaks with time
1256        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1257        Its default is 0., but it may be computed more cleverly from (unknown)
1258        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1259        done offline. A good approximation of the pressure load anomaly is
1260        necessary to avoid large initial adjustment processes underneath
1261        deep-reaching shelfice.
1262      - small fix in ISOMIP shelfice_thermodynamics
1263      - add more sophisticated thermodynamics of Hellmer (1989), this is
1264        now the default
1265      - give a few constants more intuitive names
1266    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1267      if bulk formulae are used in long integration (especially EmPmR). Turn
1268      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1269      if balancePrintMean, the imbalance that is substracted is printed to
1270      STDOUT.
1271    o fix bug (typo) in obcs_apply_eta.F
1272    o add a new package shelfice which enables us to model the circulation
1273      underneath shelf-ice with draughts of hundreds of meters.
1274     - works
1275     - to do: + include improved thermodynamics
1276              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1277                instead of new field kTopC
1278              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1279                instead of new field R_shelfIce and new code in ini_depth.F
1280                and ini_mask_etc.F?
1281              + adjust vertical mixing schemes?
1282    o seaice pkg:
1283     - add a cpp-flag to include a simple formula for a salinity dependent
1284       freezing point of sea water at the surface
1285     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1286       meridional stresses are now different (and hopefully correct)
1287    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1288       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1289       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1290    o pkg/diagnostics: add options and parameters for regional-statistics
1291       diagnostics ; define regions by reading a region-mask from a file
1292       (might add other options later)
1293    o pkg/bulk_force:
1294     - add option and parameters to use AIM surface-flux formulae.
1295     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1296       others forcing fields (defined in PARM05, parameter file "data") are loaded
1297       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1298     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1299     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1300     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1301       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1302     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1303    
1304    checkpoint58
1305    o add "--embed-source" option to genmake2 which, when the supporting
1306      tools can be compiled (as determined by genmake2) will turn on the
1307      embed_files package which then embeds the entire MITgcm source code
1308      (*.[fFhc] + Makefile) used for the build within the executable
1309      - requested by CNH but off by default
1310      - adds a paltry <9MB to the mitgcmuv executable in most cases
1311      - only writes the output when useEMBEDSRC in eedata is true
1312    o clean up 3-dim. relaxation codes:
1313      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1314      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1315      * Thanks to Tom Haine for testing!
1316    
1317    checkpoint57z_post
1318    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1319      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1320    o fix the pickup behavior for obcs in combination with ptracers
1321    o fix a bug in ptracers_external_fields_load
1322    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1323      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1324    o transfered surface NH pressure to eta field (if exactConserv).
1325    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1326         and update lab_sea output.txt file.
1327    o completing 3-dim. relaxation code: additional term
1328         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1329      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1330      * At compile time, in "EXF_OPTIONS.h" set
1331          #define  ALLOW_CLIMTEMP_RELAXATION
1332          #define  ALLOW_CLIMSALT_RELAXATION
1333      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1334          tauThetaClimRelax3Dim = 15552000.0,
1335          tauSaltClimRelax3Dim  = 15552000.0,
1336      * 3 cases:
1337          1) Use a constant-in-time 3-dim. field
1338          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1339          3) Real-time relax. to time-evolving prescribed field
1340    o Adding Laplacian-type smoothness constraint on
1341      initial and boundary (forcing) controls (ic, bc)
1342      * enable at compile-time via
1343        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1344      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1345      * Absolute scale somewhat unclear so far
1346      * no area weighting was included since no other cost term does so far
1347    
1348    checkpoint57y_post
1349    First step for a NLFS adjoint
1350    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1351    o new init. routines for calc_r_star, calc_surf_dr
1352    o still need to deal with ini_masks_etc
1353    o testreport seemed happy
1354    checkpoint57y_pre
1355    
1356    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1357    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1358    o add new offset feature to offline pkg (plus minor cleanup)
1359    o cfc fixes for final year of integration
1360    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1361      be in GCHEM_OPTIONS).
1362    
1363    checkpoint57x_post
1364    o fix testreport Pb in multiple test experiment.
1365    o cleanup our namelist syntax in verification:
1366      - make it more F95 standards compliant (some work still needed)
1367      - allows the vast majority of our tests to work with gfortran
1368    o Non-Hydrostatic:
1369     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1370     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1371    o Allow to apply AB on T,S rather than on AB(gT,gS):
1372     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1373     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1374       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1375     - need a "clever" read_pickup to restart from the other AB formulation
1376    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1377    o remove some unused variables (reduces number of compiler warnings)
1378    o adjoint
1379      * Disable useVariableViscosity for adjoint for time being
1380        (there are a number of extensive recomputations)
1381      * Initialize certain variables needed for adjoint
1382    
1383    checkpoint57w_post
1384    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1385                 fix the singleCpuIO RS version of MDSWRITEFIELD
1386       and add a WARNING if using globalFiles=T with multi-processors.
1387    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1388      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1389    o tracer advection scheme:
1390      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1391       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1392       was not very convenient).
1393      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1394       (further tests needed for the implicit DST & Flux-Limiter schemes).
1395    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1396      and sRef for convenience, handy, when you want to initialize
1397      ptracers in a large domain with a constant non-zero value. Also,
1398      untangle ptracers_init.F a little.
1399    
1400    checkpoint57v_post
1401    o change dome exp. to use variable viscosity in side-drag terms.
1402    o remove all the files from the cfc_offline test since they are now
1403      incorporated into tutorial_cfc_offline which has been producing
1404      identical results for a few days of testing
1405    o add new parameter: sideDragFactor to enable half-slip-side BC
1406      and change side-drag S/R to use viscosity from mom_calc_visc
1407      (can switch back by setting sideDragFactor=0.); affects results at
1408      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1409       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1410    o vorticity & strain are now computed without masking, to account for
1411      no-slip-side BC in variable viscosity calculation ; mask is applied
1412      anyway later on, before computing advection/coriolis terms.
1413    o modify exp4 to test new obcs support for reading from external files
1414      and for passive tracers
1415    o fix behavior of ptracers_monitor when monitor output is written to a
1416      netcdf-file; still not independent of monitor.F (writes in the same
1417      file).
1418    o change default value of tRef (put a uniform, meaningful value for ocean
1419      & atmos) and initialize sRef (was missing, as Martin mentioned).
1420    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1421      to be proportional to enstrophy dissipation length.  Thus,
1422       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1423      This is now consistent with Smagorinsky and with the manual.
1424    
1425    checkpoint57u_post
1426    o OBCS and PTRACERS: add open boundary support for passive tracers
1427      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1428        OB-values from file; this is not different from the way theta and salinity
1429        are treated
1430      - however, Orlanski-radiation conditions are not supported, and the model
1431        will stop if you use pTracers and Orlanski at the same time.
1432      - beefed up the rountine obcs_external_fields_load: now only those open
1433        boundary values are overwritten with values from files for which there
1434        are really files, otherwise the OB-fields remain untouched. This makes
1435        it possible to use different OBs at different ends of the domain (as
1436        with EXF)
1437    o reduce number of exch calls in shap_filt (s2).
1438    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1439      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1440    
1441    checkpoint57t_post
1442    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1443    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1444      same truncation, independent of the face number: affects affects several
1445      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1446    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1447      note that biharmonic viscosity + no-slip was not tested in any experiment.
1448    o fix bug in non-linear free-surf side-drag ; generate new output for
1449      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1450    o make mnc honor the writeBinaryPrec flag for most kinds of output
1451    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1452    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1453      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1454    o add brackets in multi-terms sum to get same truncation, independent of
1455      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1456      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1457    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1458      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1459      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1460      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1461      Suggested values of viscosity parameters found in mom_calc_visc.
1462      Many new viscosity diagnostics available.
1463    
1464    checkpoint57s_post
1465    o Add clearing-house for viscosity calculations, mom_calc_visc and
1466      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1467      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1468      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1469      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1470      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1471      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1472      ViscAhStrain and viscAhTension are now retired.
1473    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1474    o In response to JMC's bug report, genmake2 now ignores any soft-links
1475      that it finds in the *current* directory when searching for files.
1476      Soft-links found in any other source directories will still work as
1477      they did before.
1478    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1479      a C routine to unlimit the stack size
1480    o mnc-ify pkg/aim snapshot vars
1481    o mnc-ify pkg/land as requested by Daniel
1482    o various changes to mnc including:
1483      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1484      - output can now be grouped so that all files within a group
1485          change the ITER portion of their names in lock-step together
1486      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1487          and works with both EXCH1 and EXCH2 (but needs more testing)
1488      - writing works for all verification test cases w/ g77 on Linux
1489    
1490    checkpoint57r_post
1491    o make MNC variable initialization happen earlier
1492    o add diagnostics for (almost) each term of the momentum Eq.
1493    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1494    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1495    o remove MINIMAL_TAVE_OUTPUT option ;
1496      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1497    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1498      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1499    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1500    o add time-dependent SST, SSS control
1501    o cost terms in ecco/ modularized (new cost_generic.F)
1502    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1503    o new infrastructure for seaice model vs. obs misfits in seaice/
1504      * driver from the_main_loop.F is seaice_cost_driver.F
1505      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1506      * gradient check in Exp. 6a of natl_box_adjoint/
1507    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1508      (see README file)
1509    
1510    checkpoint57q_post
1511    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1512    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1513      - bug was reported by Jean-Michel and Ian Fenty
1514    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1515      update exp. cpl_aim+ocn output.
1516    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1517      Needed for high-res. runs with large global files
1518      to be able to limit tapelev size
1519    o Changed some tests for adjoint:
1520      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1521      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1522      * global_ocean.90x40x15/ back to default 3-level checkpointing
1523    o Modifications to enable scripted COMMON to MODULE conversion
1524      * verification/OpenAD/code/ has necessary scripts and description;
1525      * converts, compiles and runs successfully;
1526    
1527    checkpoint57p_post
1528    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1529    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1530      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1531    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1532    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1533      (was already the case for dissipation with mom_vecinv,
1534       and also the case for grad.PhiHyd when staggered-timeStep)
1535      This will allow to put dissipation out-off the AB time-stepping.
1536     Unfortunately, affects truncation error. Update output of exp. that "fails"
1537      (cg2d matching number) and leave the others for later: front_relax(10),
1538      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1539      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1540    
1541    checkpoint57o_post
1542    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1543      (2) its ready to be documented during the 20050801 DocFest
1544    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1545      for ideal_2D_oce and lab_sea on linux_ia32_g77
1546    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1547      in global1x1_tot/code_seaice_adj to access indices 32, 33
1548      (worth another tag)
1549    
1550    checkpoint57n_post
1551    o adding precip control xx_precip 32
1552    o adding swflux control xx_swflux 33
1553    o Replacing 10 forcing penalty cost routines by 1 generic.
1554    o Implementing partitioning in time-mean and variable adjustment
1555      for atmos. state.
1556    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1557    o in natl_box_adjoint:
1558      * updated exp 1 to 10
1559        (but does not have time-mean vs. variable split results yet)
1560    o updated global1x1/*_seaice_adj/
1561      to incorporate latest changes
1562    o enable useSingleCpuIO for mdsio vector routines
1563      (applies in particular to tapelev I/O)
1564    o removed inefficient K-loop in all active_file*control*.F
1565    
1566    checkpoint57m_post
1567    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1568      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1569    o pkg/exch2: filling of face-corner halo regions is optional
1570      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1571    
1572    checkpoint57l_post
1573     tag before updating tutorials (pre-release-2)
1574    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1575       for output and interpolation of input fields onto model grid)
1576    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1577       Affects results of exp. rotating_tank ; update output.txt.
1578    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1579          and taking the square quantity and/or using a fraction-weight field.
1580    o fix aim_diagnostics_init.F mate numbers.
1581    o add mnc output capability to diagnostics/diagstat and update
1582      our cvsignore files for the ACSII output generated
1583    
1584    checkpoint57k_post
1585    o lab_sea now uses diagnostics package and provides a suite of
1586      new EXF diagnostics output.
1587    
1588    checkpoint57j_post
1589    o exf
1590      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1591        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1592        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1593      * extended diagnostics output
1594        - now includes all EXF variables
1595        - hs, hl moved to common block
1596        - separate S/R for diagnostics, called after ctrl vector is added
1597        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1598        - EXFqnet contains true Qnet (i.e. includes qsw)
1599      * updated verif. lab_sea, global_with_exf
1600      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1601        to ensure that diagnostics sees a true EXFqnet
1602    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1603    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1604      several times with different frequencies.
1605    o mnc-ify the thsice package as requested by Daniel Enderton
1606      - the monitor--MNC output needs work
1607      - many attributes need to be added (most are currently blank)
1608    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1609      - many attributes need to be added (most are currently blank)
1610    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1611    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1612    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1613      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1614         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1615    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1616     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1617    
1618    checkpoint57i_post
1619    o Diagnostics package was changed: diagnostic allocation is now deactivated
1620      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1621    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1622      add 1rst Order upwind vertical Shear.
1623    o add a quick fix for A/B checkpointing in OFFLINE mode
1624    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1625      end-run around the C/Fortran linking horror in eesup/src/timers.F
1626    o added pkg/runclock: allows user to terminate run based on wall clock
1627    o added non-hydrostatic scaling parameter: nh_am2
1628    o pkg/my82: futile attempt to make results compiler-independent by adding
1629      some "_d 0", etc. no effect.
1630    o for mnc output, fill the 'T' coordinate var with myTime and create a
1631      separate 'iter' variable for iteration count
1632    o pkg/diagnostics:
1633      add new capability: output of Global/Regional & per-level statistics ;
1634      tested against monitor output (including land & thSIce) on various exp.
1635    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1636    
1637    checkpoint57h_done
1638      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1639      data.diagnostics, data.gchem, data.ptracers) is done.
1640    
1641    o pkg/diagnostics: prepare for Global/Regional statistics.
1642      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1643    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1644      and rename it: DIFFERENT_MULTIPLE
1645    
1646    checkpoint57h_post
1647    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1648    o pkg/diagnostics: change output frequency, now in seconds (instead
1649      of Nb of iterations). This requires to change data.diagnostics.
1650    checkpoint57h_pre
1651    
1652    o in mnc, let the user create the output dir if both mnc_outdir_date
1653      and mnc_outdir_num are false
1654    o add fflags() to pkg/diagnostics which allows one to specify, on a
1655      per-file basis, the file precision [default behavior is unchanged]
1656    o added diagnostics to pkg/kpp, including computation of mixed layer
1657      depth based on a temperature/density criterion
1658    o updated verification/natl_box to test the new pkg/kpp diagnostics
1659    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1660    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1661    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1662      not mnc -- this mistake was found by JMC and is now corrected
1663    
1664    checkpoint57g_post
1665    o add Adams-Bashforth 3rd Order time stepping:
1666      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1667      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1668    checkpoint57g_pre
1669    
1670    o make lambda[Theta,Salt]ClimRelax spatially varying
1671      (default remains spatially uniform constant based on tau)
1672    o added new control variables
1673      * init. uVel, vVel, etanN
1674      * lambda[Theta,Salt]ClimRelax
1675    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1676      (suggested by G. Forget)
1677    
1678    checkpoint57f_post
1679    o add parameter "baseTime" = model base time = time at iteration zero
1680      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1681      account for baseTime shift
1682    o move Coriolis arrays from PARAMS.h to GRID.h
1683    checkpoint57f_pre
1684    
1685    o mnc-ifying the seaice package
1686    o introduced an alternative length scale calculation for use in the limiting
1687      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1688    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1689    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1690      as well as grad(vort3).  Made it compatible with both approximate form
1691      for the cubed sphere and full form of these gradients.  Added flag
1692      useFullLeith to select between approximate and full form.  
1693    o add "d0" in getcon.F to reduce differences between compilers/platforms
1694      update output.txt of exp. fizhi-gridalt-hs
1695    o change port_rand funtion to allow to set the seed.
1696    o fix obscure MNC bug involving conversion between reals and integers
1697      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1698        new version is now more standards-compliant
1699    o adjoint-related modifications
1700      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1701      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1702      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1703    
1704    checkpoint57e_post
1705    o Adding eddy stress controls a la Ferreira et al.
1706    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1707    
1708    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1709      update output.txt of exp. fizhi-gridalt-hs
1710    o add more "Z" dimensions and associated coordinate vars to MNC
1711    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1712    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1713      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1714      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1715      months and years.  Requires pkg/cal.
1716    o diagnostics: add pickup functionality
1717      - off by default for backwards compatibility
1718      - current version only uses MDSIO -- MNC will be added
1719    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1720    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1721    
1722    checkpoint57d_post
1723    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1724    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1725      output from the diagnostics package
1726    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1727    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1728      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1729    o add coordinate variables to the MNC output from the diagnostics package
1730    o change MNC-flags default value: true when useMNC=TRUE
1731    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1732      the ability (off by default) to read the grid information using MNC
1733    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1734    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1735    o do snap-shot diagnostics at the middle of the time-interval (instead of
1736      at the end).
1737    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1738      new test for AIM with thSIce + slab-ocean
1739    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1740    o move state variable diagnostics to the beginning of the time step ;
1741      (note: still needs some work specially for snap-shot diagnostics)
1742      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1743    
1744    checkpoint57c_post
1745    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1746    o generate new output.txt files on faulks with g77 & the new -ieee option
1747    checkpoint57c_pre
1748    
1749    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1750      update output.txt of exp. global_ocean.90x40x15
1751    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1752      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1753    o add saltFlux(+File) forcing capability with periodicExternalForcing
1754    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1755    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1756    o improvements for the MNC output from DIAGNOSTICS:
1757      - correct handling of the unlimitied dimension
1758      - all dims now have associated coordinate variables
1759      - variables located at U, V, and Corner ("Z") points are now written
1760        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1761        *all* data points are output
1762    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1763    o added pkg/seaice/seaice_monitor.F
1764    o mdsio_readfield.F can now read files visible only to master MPI process.
1765    o pkg/seaice: some test code for ice-modified ocean stress
1766    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1767      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1768      spurious negative numbers for precipitation and humidity.  Will cause
1769      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1770    o pkg/ctrl/
1771      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1772        May be enabled via doPackDiag
1773      *  introduce z-scaling of
1774         + gradient (doZscalePack) and
1775         + control (doZscaleUnpack)
1776    o pkg/mdsio/
1777      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1778      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1779    
1780    checkpoint57b_post
1781    o simplify options in diagnostics_fill arguments (remove weird combinations)
1782    o fix MNC coordinate variables so that they now contain per-face index
1783      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1784      general, EXCH2 grids are only aligned to a "local" coordinate system
1785    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1786    o Implement instantaneous output within pkg diagnostics:
1787      setting a negative frequency in data.diagnostics produces
1788     "snap-shot" output (as opposed to time-average if freq > 0)
1789    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1790      NOTE: change ptracer diagnostics name: use 2 characters to work with
1791            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1792    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1793      becomes the coordinate variable for the 'T' dimension
1794    o add CF-style coordinate variables to MNC
1795      - just a first cut:  numbers are meaningless on the cubesphere and
1796        missing along the T axis but otherwise it works!
1797    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1798    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1799    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1800      this is based directly on what the model compute, so that the content of
1801      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1802    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1803    o clean up build options files for SunOS, in particular
1804      - remove -traditional from xmakedepend
1805      - change -xarch=v9 to -xarch=native for f77
1806      - restore use of make (not gmake)
1807      - add CC=gcc if using g77
1808    o changes per discussion of AM, JMC, & EH3 today:
1809      - move redundant "grid" variables out of "state" -- in preparation of
1810        creating proper CF-style coordinate variables and in recognition
1811        that any/all grid variables can be easily copied (eg. w/NCO) from
1812        the grid files into any of the other NetCDF files
1813      - *always* output grid variables with MDSIO (this will eventually be
1814        changed)
1815      - output MNC grid file if useMNC is true
1816    o every instance of _END_MASTER() has been found and replaced with
1817      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1818      preprocessors
1819    o re-arrange diagnostics pkg initialisation:
1820     - allow each package to extend the available diagnostics list
1821     - add some checking and fix small problems (multi-threaded, ...)
1822     - new S/R diagnostics_fill (replace fill_diagnostics):
1823       look through the short list of active diag. (instead of the long list)
1824       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1825    
1826    checkpoint57a_post
1827    o this set of changes restores TAMC compatibility
1828      tested for global_ocean.90x40x15 adjoint on trough
1829      (what a pain)
1830    
1831    checkpoint57a_pre
1832    o some modifs in tools/build_options for sunos
1833    o call ctrl_pack for ctrl at end for optimcycle=0
1834    
1835    checkpoint57
1836    o add horizontal bi-harmonic viscosity for vertical velocity
1837      - new parameter viscA4W (defaults to viscA4)
1838      - affects only non-hydrostatic code
1839      - to be done: no-slip lateral boundary conditions
1840    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1841    o implement Implicit Vertical advection for pTracers
1842    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1843      (implemented also for implicit vertical diffusion & advection)
1844    o OBCS: extend application of tracer open boundary conditions
1845      to a strip beyond the boundary of width Olx/Oly
1846    o add call monitor to TAF set of required calls (flow directives)
1847      and include in natl_box_adjoint
1848    o untangle a few ifdefs related to cost, ctrl, autodiff
1849      untangel a few ALLOW_ECCO_OPTIMIZATION
1850    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1851      (theta2, salt2 in ecco_cost_weights)
1852    
1853    checkpoint56c_post
1854    o OBCS as control variables
1855      - update ctrl_ad_diff.list, obcs_ad_diff.list
1856      - remove balance of obcs controls from default
1857      - fix index bug nobcs in ctrl_init
1858      - fix dummy fields filen in ctrl_pack
1859      - add dummy weights for obcs
1860    o lsopt: comment out fort.94 output
1861    o optim:
1862      - remove unnecessary header files
1863      - adjusted namelists
1864      - add xerbla.F to Makefile
1865    o exf:
1866      - multiple modifications of exf_check_range
1867      - unit change in exf_init_runoff from [m/year] to [m/s]
1868    o mdsio:
1869      - i/o-vector change debugLevel from debLevA to debLevB
1870    
1871    checkpoint56b_post
1872    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1873      is called from DO_THE_MODEL_IO
1874      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1875      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1876      - clean up PTRACERS_WRITE_TIMEAVE a little
1877    o add another verification experiment that tests both the cfc-pkg and
1878      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1879      reactive tendencies treated inline with regular timestepping
1880    o testreport previously did a lousy job of comparing small numbers, so
1881      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1882      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1883      testreport.
1884    o ptracers_monitor: bug fix for MPI
1885    
1886    checkpoint56a_post
1887    o GCHEM: finish reorganizating the package
1888      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1889        (introduces another 3D-array for each passive tracer, but only if
1890        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1891        gchemTendency is not needed because the timestep is done separately)
1892      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1893      - GCHEM is now---more or less cleanly---separate from PTRACERS
1894      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1895        so clear to me how that should be done in a general way.
1896    o CFC: improve formatting of output in CFC_ATMOS
1897    o PTRACERS:
1898      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1899        that ALL experiments with ptracers enable can be checked. This makes
1900        GCHEM_MONITOR obsolete.
1901      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1902        monitorFreq
1903      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1904    o add PTRACERS (PTR0[1-5]) to testreport output
1905    o exf_check_range:
1906      * default changed to .TRUE.
1907      * will check values for niter0 if debLevA, every timestep if debLevB
1908      * STOP in exf_check_range if 'out of range'
1909      * range chosen generous to allow for potential extema
1910      TBD: a version with stricter range
1911           permitted range would be runtime parameters
1912  o GMredi:  o GMredi:
1913    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1914    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1917  o GCHEM:
1917    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1918      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1919    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1920      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1921        this flag is now only visible within GCHEM-pkg routines.
1922      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1923        be replaced by a 3D array that is computed before thermodynamics; for
1924        this, the tracer ID iTracer had to be included into the parameter list
1925        of ptracers_forcing
1926      - set up forward_step to call gchem_forcing, that will replace
1927        gchem_forcing_int in ptracers_forcing
1928      - cleaning up
1929  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1930    
1931  checkpoint56  checkpoint56

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