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revision 1.832 by mlosch, Wed Jun 6 14:37:14 2007 UTC revision 1.1024 by jmc, Mon Sep 22 18:00:25 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o store 3-D (in-situ) density in commom block (DYNVARS.h)
8     - save 1 rho computation.
9     - no longer modify T & S inland when using down_slope pkg.
10    o gad_som : allow to switch to SOM advection for T & S without corresponding
11      pickup files (using new S/R: MDS_CHECK4FILE).
12    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
13      (for useSingleCpuIO to work in multi-threaded)
14    o pkg/shelfice:
15     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
16       with SHELFICEtopoFile in data.shelfice
17     - move code for reading ice shelf topography and modifying hFacC into separate
18       subroutines of the shelfice package
19     - separate initialisation of "fixed" and "variable" variables
20     - kTopC is not (yet) replaced by kSurfC, although this is possible
21    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
22    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
23      and rename:
24      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
25      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
26    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
27    
28    checkpoint61c
29    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
30      to add mass source/sink of fluid in the interior (3-D generalisation
31      of oceanic real-fresh water flux).
32    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
33    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
34    o new pkg: down_slope
35      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
36      - presently, modify T & S inland (dwnslp_calc_rho.F).
37        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
38      - implementation for ocean in P-coords not tested.
39      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
40    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
41      (to facilitate conversion of oceanic pkg to p-coordinate).
42    o change FIND_RHO to FIND_RHO_2D :
43      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
44    o new pkg: cheapaml
45    
46    checkpoint61b
47    o exch2:
48      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
49      - no longer depend on the order sequence (N,S,E,W).
50      - 3rd exchange no longer needed (tested with 24 tiles).
51      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
52      - exch_UV_A-grid readily available (but not yet tested).
53      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
54      (both are no longer needed) in exch_uv: no effect in forward run; but
55       get truncation error differences with adjoint exch.
56    o exch2:
57     - change index-bounds storage (moved from target to local tile,
58       more intuitive this way) ; rename/remove some variables.
59     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
60    
61    checkpoint61a
62    o exch2/matlab-topology-generator:
63      fix bug in index bounds for N-S internal exchange (hard to tell if this
64      had any effect on the solution).
65    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
66      is exceeded
67    o testreport: modify syntax of awk, so that it works also with
68      awk, and not only with nawk and gawk
69    
70    checkpoint61
71    o autodiff
72      Change default for TAF usage by removing argument '-nonew_arg'
73      This changes TAF subroutine argument list (ordering of active var.)
74      Omission of this flag leads to incompatibility w.r.t. TAMC
75      To restore TAMC-compatibility, need following modifs:
76      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
77      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
78      Tested TAF version is 1.9.22
79      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
80    
81    checkpoint60
82    --->>> This is the last checkpoint for which generating the adjoint
83    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
84    --->>> by default.
85    --->>> Future checkpoints will ommit this flag by default.
86    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
87    o pkg/grdchk: Add gradient check to etan0 perturbations.
88    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
89    o pkg/autodiff: more flexibility in zeroadj.
90      model/src: modifying do_oceanic_phys.F accordingly.
91    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
92    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
93      special setup of gmredi for which the adjoint is stable
94      enough for parameter optimization.
95    o bridging the gap between eddy stress and GM.
96      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
97          along with a change in CPP option (now ALLOW_EDDYPSI).
98      -> when using GM w/ GM_AdvForm:
99          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
100          is applied either in the tracer Eq. or in momentum Eq.
101          depending on data.gmredi (intro. GM_InMomAsStress).
102      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
103      The key modifications are in model/src/taueddy_external_forcing.F
104      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
105    
106    checkpoint59r
107    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
108      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
109      fix option to read coriolis(@ cell-corner) from files with CS-grid.
110    o pkg/mnc: add some attributes to standard 1D-coordinate variables
111    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
112      mass points, when using mnc for output
113      - add runtime parameter (missing_value, missing_value_int) to override
114        default (which is the value of getcon('UNDEF'))
115    o pkg/mnc: prepare mnc for the actual use of missing values with the
116      diagnostics package: small fix in mnc_cw_readwrite.template and more
117      initialisation of never used fields
118      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
119      versions
120    o pkg/thsice/thsice_ini_vars.F added default initial values so that
121      thermodynamics sea ice solver does not blow up when some initial fields
122      are missing.
123    o move from external_forcing_surf.F to ini_forcing.F
124      the p-coord. hack consisting in using pLoad to set phi0surf ;
125      update output of tutorial_global_oce_in_p (affected @ truncation level).
126    o Freshen up a bit hs94.1x64x5, notably:
127      remove rotationPeriod and tRef=5*0. (adjoint only), and add
128      exactConserv=.TRUE.
129    o pkg/generic_advdiff:
130      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
131      applies to files where Temperature & Salinity 2nd Order moments are used.
132    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
133      this uses a dynamically allocated internal state data structure
134      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
135      and requires a fortran 90 compiler
136    
137    checkpoint59q
138    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
139       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
140    o Refresh tutorial_global_oce_biogeo, notably:
141      - change bathymetry (put back seamounts in ACC, use hFacs)
142      - change EOS (POLY3 --> JMD95Z)
143      - use Bryan-Lewis vertical diffusivity
144      - use multidimensional advection
145      - remove old virtual virtual in dic pkg, now done through ptracer pkg
146      - change a couple of parameters in dic pkg
147    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
148    o pkg/obcs: change default to OBCSfixTopo = .true.,
149      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
150      - replace "debugMode" with "debugLevel .GE. debLevB"
151    o implementation of TAF directives for gchem,cfc,dic
152    o remove "exp5" (replaced by tutorial_deep_convection).
153    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
154      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
155      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
156      --> changes results in exp4, seaice_obcs
157    o tutorial_deep_convection :
158      update the set-up and increase resolution and domain size ; start
159      from pseudo initial conditions = output at t=120mn in order to see
160      something happening when running testreport.
161    o pkg/seaice: add os7mp as an advection scheme
162                  add check for advection schemes
163                  add a flag for restoring T and S underneath sea ice
164    o pkg/my82: add netcdf-support and diagnostics
165    o thsice pkg:
166      - Now hsMax limits snow height by turning it into ice following
167        flooding scheme (and now conserving energy)
168      - Slight rewriting of the formula in thsice_calc_thick.F
169      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
170      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
171    
172    checkpoint59p
173    o gchem / dic / cfc :
174      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
175      - add new parameter files: "data.dic" & "data.cfc" ;
176      - various re-arrangement in initialisation & header file ;
177      - fix tutorial_global_oce_biogeo for multi-threaded test.
178    o pkg/dic: test for "pickup_dic" file when restarting ;
179      if no pickup-file, can restart with a re-initialised pH (same as it did
180      before) providing pickupStrictlyMatch is set to False.
181    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
182      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
183    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
184      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
185    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
186     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
187       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
188    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
189       scheme to use for vorticty-term ;
190     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
191       (with default selectVortScheme, return to original discretisation)
192     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
193    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
194    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
195      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
196      also fix diagnostics VISCAHW & VISCA4W.
197    
198    checkpoint59o
199    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
200    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
201      move a few statemens out the main loop into separate loops
202    o pkg/shelfice:
203      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
204        (kg/m^2/s), does not break tests, because in verification/isomip,
205        rhoConstFresh=rhoConst (by accident)
206      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
207      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
208        new file model/src/seawater.F, so that they are available for all pkgs.
209      - convert potential temperature into in-situ temperature. This changes the
210        isomip tests => update tests
211    o add a flag writePickupAtEnd (default=true) to be able to suppress
212      writing a pickup at the last timestep
213    o tools/mpack-1.6 :
214      - disable automake (not working) and autoconf (not needed).
215      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
216        also cleaner with much less compilation warnings.
217    o pkg/profiles:
218      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
219      (for "less than 32 characters name" compiler requirement)
220    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
221      conditions that have a different sampling frequency than S/T/U/V obcs
222    o pkg/diagnostics (stats-diags):
223      - fix global Min/Max in case 1 processor get only empty tiles
224    o genmake2: replace (4 times)
225         make genmake_tc_1.o >> genmake_warnings 2>&1
226      with
227         COMM="$CC $CFLAGS -c genmake_tc_1.c"
228         echo $COMM >> genmake_warnings
229         $COMM >> genmake_warnings 2>&1
230      to make genmake2 always see the value of CC as specified in the optfile.
231    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
232      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
233      - modify verification advect_cs test to test SOM-advection on CS-grid.
234    o pkg/ctrl:
235      - Rewrite of ctrl_map_ini_ecco.F,
236        introducing a generic routine (ctrl_map_ini_gen.F).
237      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
238    
239    checkpoint59n
240    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
241      number in dedicate array "hdiag":
242      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
243        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
244      - many small changes (integer format) for large number of diagnostics
245      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
246        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
247    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
248      usingSphericalGrid, this allows to define the rotated grid coordinates
249      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
250      geographical coordinates according to the inverse of the rotation defined
251      by the Euler angles, so that Coriolis parameter and online-interpolation by
252      exf works with the geographical coordinates on XC/YC/XG/YG.
253      Naturally, this feature does not work with all packages, so some
254      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
255      profiles), because there the coordinates are assumed to be regular
256      spherical grid coordinates.
257    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
258      - introduce isopycnal diffusion coefficient control.
259    o tools/adjoint_options:
260      - additional control vector components.
261    o pkg/mnc: have mnc create marginally meaning full coordinate variables
262      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
263    o pkg/mypackage:
264      - add example of read/write pickup for state-var ;
265      - add entry points to the main code for state-vars diags & write-pickup.
266    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
267      transitions for useExfYearlyFields
268      - add new subroutine that determines the file to read from for
269        use*YearlyFields = .TRUE. and .FALSE.
270      - add a verification experiment to global_with_exf that tests
271        useExfYearlyFields with USE_EXF_INTERPOLATION defined
272    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
273      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
274      subroutines (which could be generated from a template, because they are
275      almost identical), for now they are included in obcs_prescribe_read.F for
276      simplicity
277    o pkg/exf:
278      - add a little more diagnostic to exf_interp_read (in analogy to
279        mds_read_field, can be turned off with debugLevel < debugLevA=1)
280      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
281        ugly but fast by unrolling short inner loops, inserting a unroll=8
282        directive in routine lagran, and splitting a loop and making do while the
283        outermost loop (the latter requires the intoduction of index arrays)
284    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
285    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
286      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
287    o verification/seaice_obcs: updated for restart test and latest options
288    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
289      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
290      for now this is only available for the C-grid code and also within
291      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
292    
293    checkpoint59m
294    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
295      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
296    o gad_som : fix flux output (& diagnostics) to have same units as other  
297      advection scheme fluxes (was previously multiplied by deltaT).  
298    o added verification/seaice_obcs both to test seaice open boundaries
299      and to provide an example matlab scrpt for generating them
300    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
301    o pkg/salt_plume: clean up salt_plume_frac.F to
302      remove redundancy in PlumeMethod 1 and 4
303    o pkg/kpp: added saltplume diagnostics
304    o pkg/obcs and pkg/seaice:
305      - do not set uice and vice to zero when OB*icefile are unspecified
306      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
307      - moved seaice tracer obcs after call to seaice_growth
308    o pkg/salt_plume: added various options for salt plume depth
309      criterion and for vertical distribution of the salt
310    
311    checkpoint59l
312    o pkg/ptracers: new version of ptracers pickup:
313      read meta file and write only fields which are needed to restart.
314      ( same logic as main pickup file ; also using pickupStrictlyMatch )
315    o pkg/seaice:
316      - add timescale for melting due to warm mixed layer as a means of
317        setting SEAICE_availHeatFrac more conveniently
318      - add a CPP-flag/runtime parameter check for flooding algorithm
319      - reformulated availHeat in seaice_growth.F to be independent of AREA
320    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
321      unit changes
322    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
323    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
324      SX vector computer.
325    o pkg/seaice:
326      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
327        seaice forcing fields can now be read only through pkg/exf
328      - removed some unused halos
329    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
330    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
331      or U/VICE from U/VWIND before computing U/VSTRESS
332    
333    checkpoint59k
334    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
335      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
336    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
337      all experiments pass when compile with un-initialised var. checking option.
338    o added pkg/salt_plume
339    o script to test restart (for now, in MITgcm_contrib/jmc_script)
340    o pkg/seaice: new read/write pickup version.
341      read meta file and write only fields which are needed to restart.
342      ( same logic as main pickup file ; also using pickupStrictlyMatch )
343    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
344    o lab_sea.hb87: modify the domain & update output.hb87.txt :
345      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
346      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
347      process. Fixed here by closing the domain at the Northern boundary.
348    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
349    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
350      a set of consecutive levels in/from a 3-D array.
351    o pkg/ptracers:
352      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
353      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
354    
355    checkpoint59j
356    o in pkgs: dic, obcs, offline, rbcs:
357      standard way to compute coeff. for time interpolation between 2 time reccords
358      which retains full precision (& make results less dependent on compiler).
359      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
360    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
361      packages instead of reading ice cover and wind speed separately
362    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
363     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
364      to allow to compile customized code before the update)
365    o cleaning-up:
366      - fix CPP instruction syntax in pkg/obcs
367      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
368        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
369      - fix some threads issue in IO parts.
370    o pkg/dic:
371      - add tons of "_d 0" (--> much better testreports !)
372       and then update outputs of tutorial_global_oce_biogeo
373    o pkg/mom_fluxform:
374      add a special version of momentum advection intended to conserve momentum
375      next to a bathymetry step or a coastline edge. (default = off = #undef)
376    o new read/write pickup version:
377      - for now, only implemented for main (mdsio) pickup file.
378      - write out only what is needed to restart; merge pickup_nh , pickup_ph
379        and main pickup together.
380      - read meta file; read only what is needed to restart; stop if a field
381        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
382        if it make sense (even if the restart is not perfect).
383      - if no meta file, assume that pickup to read corresponds exactly to
384        a pickup that would currently be written.
385      - read pickup written in the old format (until checkpoint59i) if it
386        recognizes an old meta file (no field-list).
387      - add a meta file in exp. which starts from a pickup: 2 cases:
388        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
389         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
390        b) a meta file describing the content of the associated pickup file
391         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
392    o pkg/mdsio & pkg/rw:
393      - new routine to read a meta file ; new set of routine to read
394        Multiple-fields file (with meta file).
395    o added open boundary conditions capability for seaice
396        HSNOW, HSALT, UICE, and VICE
397    
398    checkpoint59i
399    o adjoint:
400      * fix multiDimAdvection adjoint
401        (partial recomputation problem by TAF for fVerT(:,:,kDown)
402        and comlev1 size definition (maxpass vs. max. number of tracers)
403      * verification/global_ocean.90x45x15 adjoint now tests
404        NLFS and multiDimAdvection using DST3 (=30)
405      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
406    o pkg/kpp: add "_d 0" to real constant (if missing);
407      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
408      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
409    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
410      for internal parameters related to restart process (formerly from PARAMS.h)
411      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
412    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
413      as argument. (only atm2d & obcs write_pickup have not yet been updated)
414    o pkg/monitor:
415      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
416      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
417      - account for deep Atmosphere factor and density factor (anelastic)
418    o added open boundary conditions capability for seaice HEFF and AREA
419    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
420      thermodynamics
421      - requires a little reorganization, which affects the testreport results
422        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
423        so that now the conservative form is tested
424      - add a few comments
425    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
426    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
427    o add new diagnostics to seaice: advective, diffusive fluxes (only for
428      multidim-advection, for scheme 2 they are not filled) and transports,
429      thermodynamic growth rates
430    o change units of EmPmR (inside the code, + within coupling interface)
431      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
432      Affects results @ truncation level (cg2d match) and update output of
433       experiments: lab_sea(6), global_ocean.90x40x15(10),
434      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
435      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
436      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
437      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
438    
439    checkpoint59h
440    o pkg/exf:
441      - improve vectorization by moving if-statement out of loops in
442        exf_mapfields, exf_radiation
443      - exf_bulkformulae.F: introduce 2D fields and vectorize code
444    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
445    o testreport:
446      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
447        monitor & update offline_exf_seaice exp. output.
448      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
449    o pkg/seaice:
450      - bug fix in the evp solver: boundary conditions were affected be
451        masking of zMax/zMin (changes results)
452      - minor bug fix in boundary conditions in seaice_calc_strainrates
453        (changes results for no_slip)
454      - seaice_lsr.F: make interpolation of eta dependent on boundaries
455      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
456      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
457        stress formulation and no-slip boundary conditions
458    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
459      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
460    o pkg/seaice: a first HSALT time stepping equation has been checked in
461    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
462      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
463      without requiring DO-IF statements
464    o pkg/thsice:
465      use continuous power-law function for partition of energy between lateral
466      melting/freezing and thinning/thickening ; old code using step function
467      still available with #undef THSICE_FRACEN_POWERLAW
468      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
469    o testreport: change AD testing : check against results/output_adm.txt
470      using same scripts as for forward test.
471    
472    checkpoint59g
473    o adjoint testing: in preparation for changing testreport:
474      - output format: cost and grad written on separated lines
475      - ad output results in directory "results" (instead of "results_ad")
476    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
477    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
478    o pkg/ecco: allow user defined cost function contributions
479    o testreport:
480      Allow to choose (per experiment) the list of tested output variables
481       and the main variable (used to issue a pass/FAIL ) ;
482      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
483      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
484      Also modify printing of summary:
485       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
486       b) echo the list of tested variables in the individual summary.txt of
487          each experiment.
488    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
489      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
490      (but still depend on the tile decompostion of the domain).
491    o pkg/seaice: change a discretization detail to make the B-grid code
492      "more symmetric". This change is likely to remove all "ridges/leads" that
493      where quasi-aligned with the grid in B-grid solutions. It may also be
494      the solution to the stress coupling issues with the B-grid.
495    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
496      remove .cvsignore from input dir. (since testreport no longer run here).
497    o pkg/thsice:
498     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
499     - fix reshaping of sea-ice just after advection:
500       melt all the ice only if ice-volume is too small.
501     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
502       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
503     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
504    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
505      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
506    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
507      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
508      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
509      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
510      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
511      -> update output.txt
512    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
513     this affects truncation error: -> update output.txt of exp:
514      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
515      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
516    
517    checkpoint59f
518    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
519    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
520      a bounded range (in forward mode)
521    o pkg/ecco, ctrl, autodiff and mom_common:
522     internal parameter controls, completements of implementations
523    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
524    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
525      (not seem any difference in testing results).
526    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
527       at face corners.
528    o pkg/generic_advdiff:
529     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
530      loop range indices for computing vertical advection tendency
531      and do the calculation in the interior only (no overlap) ;
532      for now, only implemented for SOM advection (to save CPU time).
533     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
534    o exch2 adjoint
535      First set of changes:
536      - add exch2 hand-written adjoint templates
537      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
538        This will require cleanup in pkg/autodiff/*.F
539        (changed routines currently kept separate in verif. code/)
540      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
541        that used to hide exch2 or cubed-sphere specific code
542        (commented via 'cph-exch2')
543    o pkg/seaice
544      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
545    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
546       output of global_ocean.cs32x15.thsice .
547    
548    checkpoint59e
549    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
550      for B-grid vector (not yet tested) and C-grid vector (<- only used
551      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
552    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
553      (#ifdef ALLOW_SALT_PLUME)
554    o gather_2d/scatter_2d: removed halo regions
555    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
556      scheme and the corresponding test case (under front_relax dir). For now,
557      only available with Skew-flux form and not yet tested in realistic set-up.
558      adjoint: store directives updated, but gradient checks deteriorated,
559      so maybe GM/Redi adjoint is now broken.
560    o seaice adjoint
561      * add AREA, HEFF, HSNOW as control variable
562        (should not change lab_sea results)
563      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
564    o pkg/seaice:
565      * added computation of saltFlux in seaice_growth;
566        For time being, sea ice salinity is assumed constant
567        contribution of snow flooding to freshening of sea ice is neglected.
568        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
569        defaults to 0.0 in order to maintain backward compatibility.
570        Typical values for SEAICE_salinity are 4 to 10 g/kg.
571      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
572      * added SEAICE_availHeatFrac, which specifies fraction of surface level
573        heat content used to melt or grow ice
574      * commented out cap of HICE: it helps keep ice thinner
575      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
576      * applied OBCS T/S mask to HEFFM sea ice mask
577    
578    checkpoint59d
579    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
580     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
581     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
582    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
583     and change default value of parameter "GM_Small_Number";
584     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
585       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
586       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
587    o pkg/ecco: cost function when applying pkg/smooth to controls
588    o pkg/ctrl: add forcingPrecond run time parameter
589    o pkg/seaice:
590     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
591     - fix bug in metric terms of u-equation in LSR solver (implicit part),
592       changes verification/lab_sea
593     - rearrange implicit part of u-equation in LSR solver to make it easier to
594       read, understand, and debug. This causes changes at the truncation level.
595     - fix (serious) bug in the boundary conditions (sign error in the implicit
596       part) of the LSR solver. Changes all LSR results.
597     - fixed problem with HSNOW initialization to avoid thick snow when AREA
598       is initilized with small values - does not change lab_sea results.
599     - added HsnowFile initialization capability
600    o pkg/smooth: addition to model/src and pkg/ctrl so allow
601     initialization of pkg/smooth and application to control vector
602    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
603    o dependencies: pkg/profiles requires pkg/cal
604    o pkg/profiles:
605     - added option ALLOW_PROFILES_GENERICGRID
606         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
607         that interpolation information (grid points and coefficients) is provided
608         within the netcdf input files.
609         -> sample matlab scripts can be found in MITgcm_contrib/gael
610         that allow you to prepare netcdf input files.
611     - also modified: cleaner include statements, cleaner error print statements,
612       cleaner stops when error, and more tests of the netcdf input files consistency.
613    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
614  o pkg/seaice:  o pkg/seaice:
615     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
616       requires a new routine: seaice_diagnostics_fill.F
617   - make sure that seaice does not move if not forced (pressure replacement   - make sure that seaice does not move if not forced (pressure replacement
618     method, Hibler and Ip, 1995), changes results     method, Hibler and Ip, 1995), changes results
619   - and new damping criterion for EVP solver according to Hunke, JCP, 2001   - and new damping criterion for EVP solver according to Hunke, JCP, 2001
# Line 134  o in FFIELDS.h: Line 743  o in FFIELDS.h:
743       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
744  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
745  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
746      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
747        are no longer updating the vertical diffusivity array
748        (passed as argument) but are (re-) setting those arrays.
749  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
750    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
751      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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