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revision 1.638 by heimbach, Thu Mar 23 19:59:59 2006 UTC revision 1.1017 by jmc, Fri Aug 22 16:06:54 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 vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
8    o new pkg: down_slope
9      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
10      - presently, modify T & S inland (dwnslp_calc_rho.F).
11        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
12      - implementation for ocean in P-coords not tested.
13      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
14    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
15      (to facilitate conversion of oceanic pkg to p-coordinate).
16    o change FIND_RHO to FIND_RHO_2D :
17      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
18    o new pkg: cheapaml
19    
20    checkpoint61b
21    o exch2:
22      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
23      - no longer depend on the order sequence (N,S,E,W).
24      - 3rd exchange no longer needed (tested with 24 tiles).
25      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
26      - exch_UV_A-grid readily available (but not yet tested).
27      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
28      (both are no longer needed) in exch_uv: no effect in forward run; but
29       get truncation error differences with adjoint exch.
30    o exch2:
31     - change index-bounds storage (moved from target to local tile,
32       more intuitive this way) ; rename/remove some variables.
33     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
34    
35    checkpoint61a
36    o exch2/matlab-topology-generator:
37      fix bug in index bounds for N-S internal exchange (hard to tell if this
38      had any effect on the solution).
39    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
40      is exceeded
41    o testreport: modify syntax of awk, so that it works also with
42      awk, and not only with nawk and gawk
43    
44    checkpoint61
45    o autodiff
46      Change default for TAF usage by removing argument '-nonew_arg'
47      This changes TAF subroutine argument list (ordering of active var.)
48      Omission of this flag leads to incompatibility w.r.t. TAMC
49      To restore TAMC-compatibility, need following modifs:
50      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
51      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
52      Tested TAF version is 1.9.22
53      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
54    
55    checkpoint60
56    --->>> This is the last checkpoint for which generating the adjoint
57    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
58    --->>> by default.
59    --->>> Future checkpoints will ommit this flag by default.
60    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
61    o pkg/grdchk: Add gradient check to etan0 perturbations.
62    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
63    o pkg/autodiff: more flexibility in zeroadj.
64      model/src: modifying do_oceanic_phys.F accordingly.
65    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
66    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
67      special setup of gmredi for which the adjoint is stable
68      enough for parameter optimization.
69    o bridging the gap between eddy stress and GM.
70      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
71          along with a change in CPP option (now ALLOW_EDDYPSI).
72      -> when using GM w/ GM_AdvForm:
73          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
74          is applied either in the tracer Eq. or in momentum Eq.
75          depending on data.gmredi (intro. GM_InMomAsStress).
76      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
77      The key modifications are in model/src/taueddy_external_forcing.F
78      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
79    
80    checkpoint59r
81    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
82      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
83      fix option to read coriolis(@ cell-corner) from files with CS-grid.
84    o pkg/mnc: add some attributes to standard 1D-coordinate variables
85    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
86      mass points, when using mnc for output
87      - add runtime parameter (missing_value, missing_value_int) to override
88        default (which is the value of getcon('UNDEF'))
89    o pkg/mnc: prepare mnc for the actual use of missing values with the
90      diagnostics package: small fix in mnc_cw_readwrite.template and more
91      initialisation of never used fields
92      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
93      versions
94    o pkg/thsice/thsice_ini_vars.F added default initial values so that
95      thermodynamics sea ice solver does not blow up when some initial fields
96      are missing.
97    o move from external_forcing_surf.F to ini_forcing.F
98      the p-coord. hack consisting in using pLoad to set phi0surf ;
99      update output of tutorial_global_oce_in_p (affected @ truncation level).
100    o Freshen up a bit hs94.1x64x5, notably:
101      remove rotationPeriod and tRef=5*0. (adjoint only), and add
102      exactConserv=.TRUE.
103    o pkg/generic_advdiff:
104      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
105      applies to files where Temperature & Salinity 2nd Order moments are used.
106    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
107      this uses a dynamically allocated internal state data structure
108      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
109      and requires a fortran 90 compiler
110    
111    checkpoint59q
112    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
113       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
114    o Refresh tutorial_global_oce_biogeo, notably:
115      - change bathymetry (put back seamounts in ACC, use hFacs)
116      - change EOS (POLY3 --> JMD95Z)
117      - use Bryan-Lewis vertical diffusivity
118      - use multidimensional advection
119      - remove old virtual virtual in dic pkg, now done through ptracer pkg
120      - change a couple of parameters in dic pkg
121    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
122    o pkg/obcs: change default to OBCSfixTopo = .true.,
123      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
124      - replace "debugMode" with "debugLevel .GE. debLevB"
125    o implementation of TAF directives for gchem,cfc,dic
126    o remove "exp5" (replaced by tutorial_deep_convection).
127    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
128      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
129      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
130      --> changes results in exp4, seaice_obcs
131    o tutorial_deep_convection :
132      update the set-up and increase resolution and domain size ; start
133      from pseudo initial conditions = output at t=120mn in order to see
134      something happening when running testreport.
135    o pkg/seaice: add os7mp as an advection scheme
136                  add check for advection schemes
137                  add a flag for restoring T and S underneath sea ice
138    o pkg/my82: add netcdf-support and diagnostics
139    o thsice pkg:
140      - Now hsMax limits snow height by turning it into ice following
141        flooding scheme (and now conserving energy)
142      - Slight rewriting of the formula in thsice_calc_thick.F
143      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
144      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
145    
146    checkpoint59p
147    o gchem / dic / cfc :
148      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
149      - add new parameter files: "data.dic" & "data.cfc" ;
150      - various re-arrangement in initialisation & header file ;
151      - fix tutorial_global_oce_biogeo for multi-threaded test.
152    o pkg/dic: test for "pickup_dic" file when restarting ;
153      if no pickup-file, can restart with a re-initialised pH (same as it did
154      before) providing pickupStrictlyMatch is set to False.
155    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
156      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
157    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
158      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
159    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
160     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
161       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
162    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
163       scheme to use for vorticty-term ;
164     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
165       (with default selectVortScheme, return to original discretisation)
166     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
167    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
168    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
169      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
170      also fix diagnostics VISCAHW & VISCA4W.
171    
172    checkpoint59o
173    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
174    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
175      move a few statemens out the main loop into separate loops
176    o pkg/shelfice:
177      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
178        (kg/m^2/s), does not break tests, because in verification/isomip,
179        rhoConstFresh=rhoConst (by accident)
180      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
181      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
182        new file model/src/seawater.F, so that they are available for all pkgs.
183      - convert potential temperature into in-situ temperature. This changes the
184        isomip tests => update tests
185    o add a flag writePickupAtEnd (default=true) to be able to suppress
186      writing a pickup at the last timestep
187    o tools/mpack-1.6 :
188      - disable automake (not working) and autoconf (not needed).
189      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
190        also cleaner with much less compilation warnings.
191    o pkg/profiles:
192      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
193      (for "less than 32 characters name" compiler requirement)
194    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
195      conditions that have a different sampling frequency than S/T/U/V obcs
196    o pkg/diagnostics (stats-diags):
197      - fix global Min/Max in case 1 processor get only empty tiles
198    o genmake2: replace (4 times)
199         make genmake_tc_1.o >> genmake_warnings 2>&1
200      with
201         COMM="$CC $CFLAGS -c genmake_tc_1.c"
202         echo $COMM >> genmake_warnings
203         $COMM >> genmake_warnings 2>&1
204      to make genmake2 always see the value of CC as specified in the optfile.
205    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
206      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
207      - modify verification advect_cs test to test SOM-advection on CS-grid.
208    o pkg/ctrl:
209      - Rewrite of ctrl_map_ini_ecco.F,
210        introducing a generic routine (ctrl_map_ini_gen.F).
211      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
212    
213    checkpoint59n
214    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
215      number in dedicate array "hdiag":
216      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
217        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
218      - many small changes (integer format) for large number of diagnostics
219      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
220        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
221    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
222      usingSphericalGrid, this allows to define the rotated grid coordinates
223      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
224      geographical coordinates according to the inverse of the rotation defined
225      by the Euler angles, so that Coriolis parameter and online-interpolation by
226      exf works with the geographical coordinates on XC/YC/XG/YG.
227      Naturally, this feature does not work with all packages, so some
228      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
229      profiles), because there the coordinates are assumed to be regular
230      spherical grid coordinates.
231    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
232      - introduce isopycnal diffusion coefficient control.
233    o tools/adjoint_options:
234      - additional control vector components.
235    o pkg/mnc: have mnc create marginally meaning full coordinate variables
236      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
237    o pkg/mypackage:
238      - add example of read/write pickup for state-var ;
239      - add entry points to the main code for state-vars diags & write-pickup.
240    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
241      transitions for useExfYearlyFields
242      - add new subroutine that determines the file to read from for
243        use*YearlyFields = .TRUE. and .FALSE.
244      - add a verification experiment to global_with_exf that tests
245        useExfYearlyFields with USE_EXF_INTERPOLATION defined
246    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
247      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
248      subroutines (which could be generated from a template, because they are
249      almost identical), for now they are included in obcs_prescribe_read.F for
250      simplicity
251    o pkg/exf:
252      - add a little more diagnostic to exf_interp_read (in analogy to
253        mds_read_field, can be turned off with debugLevel < debugLevA=1)
254      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
255        ugly but fast by unrolling short inner loops, inserting a unroll=8
256        directive in routine lagran, and splitting a loop and making do while the
257        outermost loop (the latter requires the intoduction of index arrays)
258    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
259    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
260      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
261    o verification/seaice_obcs: updated for restart test and latest options
262    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
263      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
264      for now this is only available for the C-grid code and also within
265      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
266    
267    checkpoint59m
268    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
269      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
270    o gad_som : fix flux output (& diagnostics) to have same units as other  
271      advection scheme fluxes (was previously multiplied by deltaT).  
272    o added verification/seaice_obcs both to test seaice open boundaries
273      and to provide an example matlab scrpt for generating them
274    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
275    o pkg/salt_plume: clean up salt_plume_frac.F to
276      remove redundancy in PlumeMethod 1 and 4
277    o pkg/kpp: added saltplume diagnostics
278    o pkg/obcs and pkg/seaice:
279      - do not set uice and vice to zero when OB*icefile are unspecified
280      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
281      - moved seaice tracer obcs after call to seaice_growth
282    o pkg/salt_plume: added various options for salt plume depth
283      criterion and for vertical distribution of the salt
284    
285    checkpoint59l
286    o pkg/ptracers: new version of ptracers pickup:
287      read meta file and write only fields which are needed to restart.
288      ( same logic as main pickup file ; also using pickupStrictlyMatch )
289    o pkg/seaice:
290      - add timescale for melting due to warm mixed layer as a means of
291        setting SEAICE_availHeatFrac more conveniently
292      - add a CPP-flag/runtime parameter check for flooding algorithm
293      - reformulated availHeat in seaice_growth.F to be independent of AREA
294    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
295      unit changes
296    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
297    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
298      SX vector computer.
299    o pkg/seaice:
300      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
301        seaice forcing fields can now be read only through pkg/exf
302      - removed some unused halos
303    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
304    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
305      or U/VICE from U/VWIND before computing U/VSTRESS
306    
307    checkpoint59k
308    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
309      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
310    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
311      all experiments pass when compile with un-initialised var. checking option.
312    o added pkg/salt_plume
313    o script to test restart (for now, in MITgcm_contrib/jmc_script)
314    o pkg/seaice: new read/write pickup version.
315      read meta file and write only fields which are needed to restart.
316      ( same logic as main pickup file ; also using pickupStrictlyMatch )
317    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
318    o lab_sea.hb87: modify the domain & update output.hb87.txt :
319      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
320      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
321      process. Fixed here by closing the domain at the Northern boundary.
322    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
323    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
324      a set of consecutive levels in/from a 3-D array.
325    o pkg/ptracers:
326      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
327      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
328    
329    checkpoint59j
330    o in pkgs: dic, obcs, offline, rbcs:
331      standard way to compute coeff. for time interpolation between 2 time reccords
332      which retains full precision (& make results less dependent on compiler).
333      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
334    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
335      packages instead of reading ice cover and wind speed separately
336    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
337     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
338      to allow to compile customized code before the update)
339    o cleaning-up:
340      - fix CPP instruction syntax in pkg/obcs
341      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
342        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
343      - fix some threads issue in IO parts.
344    o pkg/dic:
345      - add tons of "_d 0" (--> much better testreports !)
346       and then update outputs of tutorial_global_oce_biogeo
347    o pkg/mom_fluxform:
348      add a special version of momentum advection intended to conserve momentum
349      next to a bathymetry step or a coastline edge. (default = off = #undef)
350    o new read/write pickup version:
351      - for now, only implemented for main (mdsio) pickup file.
352      - write out only what is needed to restart; merge pickup_nh , pickup_ph
353        and main pickup together.
354      - read meta file; read only what is needed to restart; stop if a field
355        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
356        if it make sense (even if the restart is not perfect).
357      - if no meta file, assume that pickup to read corresponds exactly to
358        a pickup that would currently be written.
359      - read pickup written in the old format (until checkpoint59i) if it
360        recognizes an old meta file (no field-list).
361      - add a meta file in exp. which starts from a pickup: 2 cases:
362        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
363         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
364        b) a meta file describing the content of the associated pickup file
365         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
366    o pkg/mdsio & pkg/rw:
367      - new routine to read a meta file ; new set of routine to read
368        Multiple-fields file (with meta file).
369    o added open boundary conditions capability for seaice
370        HSNOW, HSALT, UICE, and VICE
371    
372    checkpoint59i
373    o adjoint:
374      * fix multiDimAdvection adjoint
375        (partial recomputation problem by TAF for fVerT(:,:,kDown)
376        and comlev1 size definition (maxpass vs. max. number of tracers)
377      * verification/global_ocean.90x45x15 adjoint now tests
378        NLFS and multiDimAdvection using DST3 (=30)
379      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
380    o pkg/kpp: add "_d 0" to real constant (if missing);
381      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
382      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
383    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
384      for internal parameters related to restart process (formerly from PARAMS.h)
385      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
386    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
387      as argument. (only atm2d & obcs write_pickup have not yet been updated)
388    o pkg/monitor:
389      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
390      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
391      - account for deep Atmosphere factor and density factor (anelastic)
392    o added open boundary conditions capability for seaice HEFF and AREA
393    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
394      thermodynamics
395      - requires a little reorganization, which affects the testreport results
396        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
397        so that now the conservative form is tested
398      - add a few comments
399    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
400    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
401    o add new diagnostics to seaice: advective, diffusive fluxes (only for
402      multidim-advection, for scheme 2 they are not filled) and transports,
403      thermodynamic growth rates
404    o change units of EmPmR (inside the code, + within coupling interface)
405      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
406      Affects results @ truncation level (cg2d match) and update output of
407       experiments: lab_sea(6), global_ocean.90x40x15(10),
408      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
409      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
410      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
411      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
412    
413    checkpoint59h
414    o pkg/exf:
415      - improve vectorization by moving if-statement out of loops in
416        exf_mapfields, exf_radiation
417      - exf_bulkformulae.F: introduce 2D fields and vectorize code
418    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
419    o testreport:
420      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
421        monitor & update offline_exf_seaice exp. output.
422      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
423    o pkg/seaice:
424      - bug fix in the evp solver: boundary conditions were affected be
425        masking of zMax/zMin (changes results)
426      - minor bug fix in boundary conditions in seaice_calc_strainrates
427        (changes results for no_slip)
428      - seaice_lsr.F: make interpolation of eta dependent on boundaries
429      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
430      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
431        stress formulation and no-slip boundary conditions
432    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
433      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
434    o pkg/seaice: a first HSALT time stepping equation has been checked in
435    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
436      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
437      without requiring DO-IF statements
438    o pkg/thsice:
439      use continuous power-law function for partition of energy between lateral
440      melting/freezing and thinning/thickening ; old code using step function
441      still available with #undef THSICE_FRACEN_POWERLAW
442      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
443    o testreport: change AD testing : check against results/output_adm.txt
444      using same scripts as for forward test.
445    
446    checkpoint59g
447    o adjoint testing: in preparation for changing testreport:
448      - output format: cost and grad written on separated lines
449      - ad output results in directory "results" (instead of "results_ad")
450    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
451    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
452    o pkg/ecco: allow user defined cost function contributions
453    o testreport:
454      Allow to choose (per experiment) the list of tested output variables
455       and the main variable (used to issue a pass/FAIL ) ;
456      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
457      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
458      Also modify printing of summary:
459       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
460       b) echo the list of tested variables in the individual summary.txt of
461          each experiment.
462    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
463      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
464      (but still depend on the tile decompostion of the domain).
465    o pkg/seaice: change a discretization detail to make the B-grid code
466      "more symmetric". This change is likely to remove all "ridges/leads" that
467      where quasi-aligned with the grid in B-grid solutions. It may also be
468      the solution to the stress coupling issues with the B-grid.
469    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
470      remove .cvsignore from input dir. (since testreport no longer run here).
471    o pkg/thsice:
472     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
473     - fix reshaping of sea-ice just after advection:
474       melt all the ice only if ice-volume is too small.
475     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
476       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
477     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
478    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
479      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
480    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
481      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
482      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
483      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
484      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
485      -> update output.txt
486    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
487     this affects truncation error: -> update output.txt of exp:
488      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
489      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
490    
491    checkpoint59f
492    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
493    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
494      a bounded range (in forward mode)
495    o pkg/ecco, ctrl, autodiff and mom_common:
496     internal parameter controls, completements of implementations
497    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
498    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
499      (not seem any difference in testing results).
500    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
501       at face corners.
502    o pkg/generic_advdiff:
503     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
504      loop range indices for computing vertical advection tendency
505      and do the calculation in the interior only (no overlap) ;
506      for now, only implemented for SOM advection (to save CPU time).
507     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
508    o exch2 adjoint
509      First set of changes:
510      - add exch2 hand-written adjoint templates
511      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
512        This will require cleanup in pkg/autodiff/*.F
513        (changed routines currently kept separate in verif. code/)
514      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
515        that used to hide exch2 or cubed-sphere specific code
516        (commented via 'cph-exch2')
517    o pkg/seaice
518      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
519    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
520       output of global_ocean.cs32x15.thsice .
521    
522    checkpoint59e
523    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
524      for B-grid vector (not yet tested) and C-grid vector (<- only used
525      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
526    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
527      (#ifdef ALLOW_SALT_PLUME)
528    o gather_2d/scatter_2d: removed halo regions
529    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
530      scheme and the corresponding test case (under front_relax dir). For now,
531      only available with Skew-flux form and not yet tested in realistic set-up.
532      adjoint: store directives updated, but gradient checks deteriorated,
533      so maybe GM/Redi adjoint is now broken.
534    o seaice adjoint
535      * add AREA, HEFF, HSNOW as control variable
536        (should not change lab_sea results)
537      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
538    o pkg/seaice:
539      * added computation of saltFlux in seaice_growth;
540        For time being, sea ice salinity is assumed constant
541        contribution of snow flooding to freshening of sea ice is neglected.
542        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
543        defaults to 0.0 in order to maintain backward compatibility.
544        Typical values for SEAICE_salinity are 4 to 10 g/kg.
545      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
546      * added SEAICE_availHeatFrac, which specifies fraction of surface level
547        heat content used to melt or grow ice
548      * commented out cap of HICE: it helps keep ice thinner
549      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
550      * applied OBCS T/S mask to HEFFM sea ice mask
551    
552    checkpoint59d
553    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
554     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
555     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
556    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
557     and change default value of parameter "GM_Small_Number";
558     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
559       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
560       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
561    o pkg/ecco: cost function when applying pkg/smooth to controls
562    o pkg/ctrl: add forcingPrecond run time parameter
563    o pkg/seaice:
564     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
565     - fix bug in metric terms of u-equation in LSR solver (implicit part),
566       changes verification/lab_sea
567     - rearrange implicit part of u-equation in LSR solver to make it easier to
568       read, understand, and debug. This causes changes at the truncation level.
569     - fix (serious) bug in the boundary conditions (sign error in the implicit
570       part) of the LSR solver. Changes all LSR results.
571     - fixed problem with HSNOW initialization to avoid thick snow when AREA
572       is initilized with small values - does not change lab_sea results.
573     - added HsnowFile initialization capability
574    o pkg/smooth: addition to model/src and pkg/ctrl so allow
575     initialization of pkg/smooth and application to control vector
576    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
577    o dependencies: pkg/profiles requires pkg/cal
578    o pkg/profiles:
579     - added option ALLOW_PROFILES_GENERICGRID
580         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
581         that interpolation information (grid points and coefficients) is provided
582         within the netcdf input files.
583         -> sample matlab scripts can be found in MITgcm_contrib/gael
584         that allow you to prepare netcdf input files.
585     - also modified: cleaner include statements, cleaner error print statements,
586       cleaner stops when error, and more tests of the netcdf input files consistency.
587    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
588    o pkg/seaice:
589     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
590       requires a new routine: seaice_diagnostics_fill.F
591     - make sure that seaice does not move if not forced (pressure replacement
592       method, Hibler and Ip, 1995), changes results
593     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
594     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
595       It is turned off by default (=-1.), because it changes the results.
596     - make it possible to read AREA from a file, too.
597    
598    checkpoint59c
599    o add S/R and diagnostics for oceanic mixed-layer depth
600    o move GMRedi call after all vertical mixing schemes (including KPP)
601    o pkg/thsice:
602     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
603      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
604    o pkg/obcs:
605     - bug fix for balance code
606    o pkg/seaice:
607      - allow values of SEAICE_elasticParm > 1
608      - add new parameter SEAICE_evpTauRelax as an alternative
609        to SEAICE_elasticParm
610      - make lsr boundary conditions free slip (by default), changes result
611      - add code for no slip boundary conditions for lsr
612      - set minimum of zeta to zero (and not 4e8) (changes results)
613      - add a cap on AREA after advecting AREA if seaice_growth is not called
614    o change calculation of Visbeck K:
615      - no longer depend on tapering scheme; instead, compute slope (limited
616        by GM_maxSlope). this is equivalent to what was comuted before with
617        clipping or linear tappering.
618      - fix vertical averaging (wrong by 1/2 level)
619      - leave the old version (but will not be maintained) within
620        #ifdef OLD_VISBECK_CALC / #endif
621      - update output of exp. ideal_2D_oce
622    o change error catch in calc_r_star to improve vectorization
623    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
624      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
625    o adjoint:
626      Re-organized adjoint checkpointing according to Matt Mazloff
627      (but with modifs/completions/cleanups)
628      Storing is now bundled into large arrays to optimized I/O
629      (and second step in cleanup of the_main_loop)
630    
631    checkpoint59b
632    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
633      - export/import (between ocean & coupler) fields needed for ocean DIC.
634    o pkg/seaice:
635      - get rid of three more exchanges seaice_calc_viscosities (required
636        different loop boundaries in seaice_lsr and seaice_ocean_stress)
637      - bug fix in seaice_ocean_stress (update of lab_sea required)
638      - reduce loop boundaries to necessary minimum also in seaice_evp
639      - go back to the old way of computing deltaC/Z as the adjoint likes that
640        better
641    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
642      passive tracer to an Age Tracer) + update output.txt
643    o pkg/exf:
644      - implement A-grid / C-grid selection for wind-stress input files.
645      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
646      for now, in exf_bulk_largeyeager04.F only :
647      - change implementation for case where windspeed + 2. components wind-stress
648        are read-in. AND use rhoConstFresh to convert evap.
649    o pkg/seaice:
650      - use correct EXCH_UV for wind-forcing (on A-grid).
651      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
652        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
653    o pkg/exf:
654      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
655      EXF_INTERPOLATION:
656      - merge global_with_exf/code version of exf_interp_read.F
657        to the main code ;
658      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
659        reading the file ; Important: This options needs to be defined to recover
660        previous code.
661        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
662      - no longer loose real*8 precision along the way when using exf_iprec=64.
663    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
664      - change discretisation of evp-solver in order to avoid another exchange
665        (changes lab_sea) and clean up a little
666      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
667        help the adjoint (this also changes the results slightly)
668      - add a few "_d 0" where they had been missing in seaice_evp.F
669      - cleaning up: remove unused seaice_calc_rhs.F
670    o pkg/exf: some cleaning-up:
671      - change various "constants" into runtime parameters
672      - cleaned-up Large&Yeager04 routine which should eventually
673        replace exf_bulkformulae.F (changed names of S/R and CPP)
674        and merged various ALLOW_ATM_WIND options
675     only used with thsice pkg (in thsice_get_exf.F):
676      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
677        which are used when useStabilityFct_overIce=TRUE (= the default)
678      - change default values of ice & snow emissivity and scale downward LW
679        by ice & snow emissivity.
680    o pkg/thsice:
681     fix few little problems, in thsice_calc_thickn.F:
682      - growth vertically (and not laterally) if iceFrac == iceMaskMax
683      - melt only laterally if hIce < hThinIce (as the comments say)
684      and in thsice_extend.F:
685      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
686      - start to form ice as soon as the minimum ice-volume is reachable.
687     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
688      and cpl_aim+ocn
689    o pkg/kpp
690     - move computation of surface related input fields to KPP into a new
691       subroutine kpp_forcing_surf.F
692     - remove wrong (within bi,bj loops) EXCH calls.
693     - little cleaning (add argument myThid in last position, cvs header ...)
694     - for now, fix conservation problem by exchanging KPPviscAz (may not
695       be the best fix)
696    o pkg/seaice
697     - check for inconsistent evp parameter/cpp-flag combination
698     - remove leftover errIO flat for obsolete name list error handling
699    o OpenAD
700     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
701    
702    checkpoint59a
703    o pkg/seaice: some parameter clarifications and a little bit of clean up
704    o pkg/thsice: rename run-time parameters:
705       himin       -> hIceMin
706       himin0      -> hThinIce
707       hihig       -> hThickIce
708       i0          -> i0swFrac
709       transCoef   -> bMeltCoef
710       frac_energy -> fracMelting
711      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
712       with default values (for now) that do not change the results.
713      remove old version of thsice vars advection in pkg/seaice.
714    o in FFIELDS.h:
715      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
716      - make pLoad & sIceLoad always available (but still only used if
717         ATMOSPHERIC_LOADING is #define).
718    o pkg/kpp: replaced _KPP_RL with _RL
719    o bug fixes for vertical diffusivity computations when both KPP and
720        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
721        are no longer updating the vertical diffusivity array
722        (passed as argument) but are (re-) setting those arrays.
723    o pkg/seaice: fix bug in evp solver, while doing that
724      - change (improve?) discretization of stress computations for both
725        cgrid-lsr and evp solver
726      - add a new routine to compute strain rates
727      - the above changes lab_sea results
728      - add no slip conditions for evp solver (off by default), lsr-version
729        may follow
730      - fix exchange for shear at Z-points (does not change lab_sea)
731      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
732        (to force the user to pick a time step since there is not "safe" way
733        of choosing it)
734      - add principal stress diagnostics
735      - rearrange fields for evp a little to avoid having to call a: too many
736        exchanges and b: exchanges for stress trensor components which we do
737        not have.
738      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
739        of evp, complete rewrite for lsr case (latter is does not yet work
740        in all cases)
741    o pkg/kpp: add code to have mixing in shelf ice caverns
742      - add myThid to all kpp routines (long overdue)
743    
744    checkpoint59
745    o pkg/exf:
746      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
747        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
748      - move exf header files from lower_case.h to UPPER_CASE.h ;
749        add missing cvs Header & Name
750      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
751      - add namelist param. selectStressGridPosition, exf_monFreq
752      - retire many _CLIM routines, and remove data.exf_clim
753        + params moved to data.exf
754        + climsst, climsss now handled by exf_set_gen, i.e.
755          climss?period=0 refers to constant field,
756          climss?period=-12 to monthly forcing
757      - split up namelists in data.exf
758    o pkg/seaice:
759      - remove seaice_exch and seaice_exch_uv
760      - remove superfluous exchange of theta
761      - add myThid to seaice_budget_ocean/ice
762      - add new interface for atmospheric wind forcing (C-grid only)
763        + new routine
764        + two new field (taux, tauy for stress over ice)
765        + removed one global field (DAIRN) for C-grid case only
766    o pkg/thsise
767      - 2nd set of modifs for thsice adjoint in conjunction with exf
768    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
769    
770    checkpoint58y_post
771    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
772      vertical diffusivity, similar to that in MOM4; turned on using
773      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
774      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
775    o Added capability for 3D specification of background vertical diffusion
776      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
777      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
778      "data" file that contains the 3D vertical diffusivity coefficients.
779    o ice dynamics (pkg/seaice) with thsice thermodynamics:
780      - add code within pkg thsice to advect & diffuse sea-ice fields
781      similar to (and will replace) what has been added in  seaice_advdiff.F,
782      but: - conserving Mass, Heat & Salt.
783           - better when using non-linear advection scheme (not yet fully tested)
784           - can also be used in atmospheric set-up (for now, only the diffusion).
785    
786    checkpoint58x_post
787    o IO option for global-file compact format:
788      - add options when generating topology (utils/exch2/matlab-topology-generator)
789      - add I/O capability (pkg/mdsio).
790      - adapt utils/matlab/rdmds.m to read this format.
791      for now long-line format not yet supported by pkg/mdsio (& exch2).
792    o shelfice: add a few diagnostics
793    
794    checkpoint58w_post
795    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
796      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
797      (and replace horiVertRatio in NH code).
798      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
799                         and tutorial_plume_on_slope (sensitive to truncation)
800    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
801      directly to drive seaice model (C-grid only)
802    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
803     - reintroduce computation of wind from stress,
804     - compute tau (in exf_bulkformulae.F) from windstress averaged to
805       mass points to avoid tau = 0
806     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
807    o rdmnc.m: make it work with "global" files created with gluemnc
808    o rdmnc.m : some improvements in dealing with singleton dimension
809      (tested on all testreport mnc output files).
810    o genmake2: disable pkg/profiles if netcdf test fails.
811    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
812    o move call to cal_readparms up to make calendar parameters/variable available
813      to all packages
814    
815    checkpoint58v_post
816    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
817      useDynP_inEos_Zc tested.
818    o pkg/exf: changes to properly interpolate/mask/scale initial fields
819    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
820      and portions thereof.  See read_cs.txt for description and examples.
821    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
822      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
823      following the great-circle arc between those 2 points.
824    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
825      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
826    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
827     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
828     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
829     - still needs work (not working with some options ; efficiency to improve)
830       and serious testing.
831     - use this scheme for temperature & salinity in 2 advection test exp.:
832       advect_xy & advect_xz, respectively.
833    
834    checkpoint58u_post
835    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
836    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
837    o testreport: add option "-skipdir" to skip some test.
838    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
839      momentum calculation.
840    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
841    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
842      remove checkpoint.F and the_correction_step.F (no longer used);
843      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
844    o add option (linFSConserveTr) to correct for tracer source/sink due to
845      Linear Free surface
846    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
847    o pkg/thsice: fix reading mnc-pickups
848    
849    checkpoint58t_post
850    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
851    o pkg/mdsio:
852     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
853       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
854       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
855     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
856     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
857       either MDS_READ_FIELD or MDS_WRITE_FIELD )
858     - new S/R (to replace MDSWRITEMETA), which allows to write more
859       informations (variable names, time ...) to meta files.
860     - modify rdmds.m to give back the meta file content.
861    o pkg/diagnostics: change vertical interpolation to be safer, and more
862       flexible (define p-levels to interpolate to in data.diagnostics);
863      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
864       diagnostic pointer.
865    o pkg/seaice: more cleaning up of seaice_growth, added many comments
866    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
867    o fix multi-category seaice:
868     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
869       SEAICE_MULTICATEGORY
870     - fix short wave heat flux
871    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
872       and allow to use EVP solver. Change forward lab_sea: test both EVP
873       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
874    o Initial check-in of lab_sea adjoint
875      (very similar to natl_box_adjoint/code_seaice)
876      * used C-grid and EVP solver
877      * used KPP, GM/Redi
878      * uses inAdExact=.TRUE.
879      * gradient checks fail for both ADM and TLM
880        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
881        f.d. gradients actually seem more problematic than ADM, TLM gradients;
882        issue is related to forward mismatch between g77 an ifort
883    o pkg/seaice: overhaul of thermodynamics
884     - growth.F and groatb.F are replaced by new routine seaice_growth.F
885     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
886     - move a few global fields out of SEAICE.h into seaice_growth.F and
887       make them 2D (FICE/QNETO/ ...)
888     - remove FO (it is the same as QNETO)
889     - introduce a few local fields to avoid modifying external fields such
890       as atemp, etc.
891    
892    checkpoint58s_post
893    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
894      changed exf_set_gen.F so that
895        genperiod=0 means input file is one time-constant field and
896        genperiod=-12 means input file contains 12 monthly means
897    o CG2D: use pre-computed solver main-diagonal (stored in common block);
898      this affects truncation error ; generate new output file for exp. which
899      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
900        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
901        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
902        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
903        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
904        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
905    o start implementation of deep-atmosphere and anelastic formulation
906    o verification: remove 2nd copy of input files and use script "prepare_run"
907      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
908    o mom_common/vecinv/fluxform: fix a few initialisation isssues
909    o profiles: fix for multithreaded case
910    
911    o diagnostics: rename few diags:
912      s/'PRESSURE'/'RCENTER '/g
913      s/'TICE    '/'oceFreez'/g
914      s/'TAUX    '/'oceTAUX '/g
915      s/'TAUY    '/'oceTAUY '/g
916      s/'SWFLUX  '/'oceQsw  '/g
917      s/DIFx/DFxE/g
918      s/DIFy/DFyE/g
919      and add few ocean-forcing diagnostics:
920      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
921    o modifications to pkg/seaice/growth.F and budget.F, which change results of
922      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
923      as actual snow thickness.  It now refers everywhere to effective snow
924      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
925    
926    checkpoint58r_post
927    o modifications to pkg/seaice/growth.F, which change results of
928      lab_sea experiment: fixes pertain to melting snow over open water, to
929      masking EVAP under sea ice, and to using the correct AREA variable for
930      computations of EVAP, PRECIP, HSNOW, and GHEFF
931    o add ability to read bathy, salt, and theta using MNC (off by def)
932    o add flooding algorithm and advection of HSNOW for pkg/seaice;
933      both are turned off by default and do no change any results
934    o seaice advection with pkg/thsice: a step toward the use of non-linear
935      advection scheme, but #ifdef or commented out for now (requires more EXCH).
936    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
937      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
938      in natl_box (affects results @ truncation level: update output.txt)
939    o multi-threading and IO:
940      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
941      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
942        (needed to work with SingleCpuIO): tested in all verif. exp.
943    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
944      affects the results (but none of the verification test uses this scheme).
945    o Adding some pkg/diagnostics capability to pkg/seaice
946      (will certainly be subject to changes)
947    o ctrl: adding new control variables:
948      lwflux, lwdown, evap, snowprecip, apressure, runoff
949    
950    checkpoint58q_post
951    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
952      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
953      high_res_cube configuration by 4% on Columbia.
954    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
955      add (in global_with_exf/code) a version of EXF_INTERP_READ without
956      dynamical allocation (seems to work in multi-threaded).
957    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
958      single CPU io) so that TAF does not have to see EESUPPORT.h
959    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
960    
961    checkpoint58p_post
962    o obcs: stop if obcs is used with useCDscheme = .true.
963    o shelfice:
964     - fix a sign error so that no slip at shelfice interface works
965     - remove stop for combination non-hydrostatic code and shelfice. That does
966       not mean, that the results are correct, but at least they are numerically
967       stable
968    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
969    o added adjoint exch routined for all exch*3d* routines
970      and updated flow directives
971    
972    checkpoint58o_post
973    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
974      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
975    o change controling S/R for writing pickup file (new S/R do_write_pickup)
976      and clean-up reading/writing of pickup files.
977    o fix local version of read/write pickup (NH part) in rotating_tank/code
978    o simplify EXCH interface:
979     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
980     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
981    o added the regrid package
982    o shelfice:
983     - add a simple boundary layer scheme to reduce noise
984     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
985    
986    checkpoint58n_post
987    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
988       local variable (not in common block).
989    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
990      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
991      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
992        to work with SingleCpuIO.
993    o add "_d 0" to real constant of pkg/cfc subroutines ;
994       update exp. cfc_exemple & tutorial_cfc_offline output files.
995    o multi-threading and IO:
996      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
997        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
998      - barrier before and after reading.
999      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1000      - avoid using MDS_WRITELOCAL for LAND pkg output.
1001      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1002        common-block variables ; Allows multi-threading with master-thread IO.
1003    o change default MAX_NO_THREADS from 32 to 4 ;
1004      and stop cleanly when MAX_NO_THREADS is too small.
1005    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1006    
1007    checkpoint58m_post
1008    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1009       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1010    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1011       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1012       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1013    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1014        add MITgcm_tutorials (= code + all the tutorials)
1015    o ecco, option to compute cost for total ssh (mean+anom)
1016    o consistent with addition of ptracer and ssh in pkg/profiles
1017    o profiles: adding ptracer and ssh
1018    o testreport: change multi-test output-file name
1019      (from output.txt.{name} to output.{name}.txt)
1020    o profiles: now ok for mutli-tiles case
1021    o seaice: add 4 parameters for different advection schemes for area,
1022      (effective) seaice thickness, enthalphy, and snow height. Their default
1023      is the standard parameter SEAICEadvScheme
1024    o calc_gw:
1025     - add cosFacU in zonal viscous flux (harmonic.visc.).
1026     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1027       of tutorial_plume_on_slope.
1028    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1029    o calc_gw: true flux-form, account for horizontal grid spacing.
1030      update rotating_tank results, but not plume_on_slope (affected at
1031      truncation level, 11 digits).
1032    
1033    checkpoint58l_post
1034    o calc_gw:
1035     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1036     - remove side-drag for now (need to fix it); update plume_on_slope results.
1037     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1038    o commit code to make SST/SSS weights spatially variable
1039      (based on either variable in-situ or variable initial T/S weights)
1040    o pkg/ecco:
1041      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1042        now based on horizontally varying weights wthetaLev, wsaltLev
1043      * cost_averagesflags now returns year indices in addition to day, month
1044      * sflux balance is performed on annual basis
1045        (sflxumm, sfluxmm2, bal_sfluxmm)
1046      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1047        including separate counting and multipliers
1048    o pkg/rbcs
1049      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1050    
1051    checkpoint58k_post
1052    o testreport:
1053     - always build in dir. "build" (if not there, mkdir build instead of building
1054       & running in input)
1055     - run in dir run (if it exists), in build otherwise.
1056     - call prepare_run (if input/prepare_run exists)
1057     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1058    o pkg/exf modifications to interpolation and rotation routines for more
1059       reasonable treatment of North Pole singularity: for tracers North Pole
1060       value is set to northernmost zonal-mean value, for zonal velocity it is
1061       set to zero, and for meridional velocity it is set to northernmost value.
1062    o pkg/exf/exf_check_range.F
1063     - add tile index to diagnostics and move stop statement to the very
1064       end of the routine.
1065    o pkg/diagnostics: (diagnostics_main_init.F)
1066      define title of isomorphic variables according to the current config.
1067    o pkg/thsice with pkg/seaice dynamics:
1068    - fix domain of computation (interior only, required for exf) and do exchanges
1069    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1070    o towards a standard way of dealing with multi-threading in MONITOR
1071      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1072    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1073       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1074    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1075    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1076    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1077       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1078    o tracer advection:
1079     - clean-up and simplify calc_common_factors.F
1080     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1081       advection subroutine (but still not used within DST advection S/R)
1082    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1083    
1084    checkpoint58j_post
1085    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1086      from file (collects calls previously in FORWARD_STEP)
1087    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1088    o adjoint store dir. adjusted accordingly
1089    o genmake2
1090      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1091    
1092    checkpoint58i_post
1093    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1094      on wind stress (SEAICEstressFactor defaults to 1.)
1095    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1096      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1097    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1098      on CS-grid: no longer loosing mass.
1099    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1100    o pkg/ggl90: fix sloppy output and fix a bug
1101    o pkg/seaice: added SEAICEuseEVPpickup parameter
1102      - Set to false in order to start EVP solver with
1103        non-EVP pickup files when using SEAICEuseEVP
1104      - fix sign error in diffusion in seaice_calc_rhs
1105    
1106    checkpoint58h_post
1107    * Modifications for bottom topography control
1108      o replace hFacC by _hFacC at various places
1109      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1110      o add non-self-adjoint cg2d_nsa
1111      o update autodiff support routines
1112      o re-initialise hfac after ctrl_depth_ini
1113      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1114    * Adding verification for 5x5 box (4-layer) bottom topography control
1115    
1116    checkpoint58g_post
1117    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1118       used for mean seasonal cycle, mean diurnal cycle); add an example
1119       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1120    o pkg/ggl90:
1121      - add parameter (minimum surface kinetic energy)
1122      - fix bug (avoiding division by zero)
1123    o couple pkg/thsice to pkg/seaice:
1124      - modify advection in seaice to accomodate new scalar fields to be advected
1125      - only muliDimAdection scheme work with seaice/thsice
1126      - mapping of thsice-variables to seaice-variables, back and forth
1127      - does not break the verification experiments, but does not give the
1128        desired results either
1129    o pkg/seaice
1130      - make (default) second order advection a bit less confusing?
1131    
1132    checkpoint58f_post
1133    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1134      to pkg/seaice):
1135      - new routines thsice_map_exf and thsice_get_exf provide the interface
1136      - add an additional formal parameter to thsice_solve4temp
1137    o pkg/exf:
1138      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1139      - correct Stefan-Boltzmann constant
1140      - new parameter for longwave surface emittance
1141      - separate some stuff from exf_bulkformulae into new routines  
1142        exf_radiation, exf_wind
1143      - add new parameters and constants: longwave emissivity for ocean, ice
1144        and snow, evaporation parameters over ice
1145      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1146        either wind from stress or stress from wind
1147    o pkg/thSIce:
1148    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1149    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1150       and THSICE_CALC_THICKN
1151    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1152    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1153      to make debugging easier.
1154    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1155    o pkg/bulk_force:
1156      - clean-up comments and parameters ;
1157      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1158    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1159      generate new output for test-experiment: aim.5l_cs.thSI
1160    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1161      testreport accordingly
1162    
1163    checkpoint58e_post
1164    o SEAICE_CGRID adjoint done
1165    o R_STAR adjoint implemented.
1166      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1167      * need to sort out init. of h0facc, etc.
1168    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1169      to be able to use it in pure forward.
1170    
1171    checkpoint58d_post
1172    o upgrade simple test-experiment to tutorial example:
1173     step.1: duplicate the experiment and (step.2) will remove the old copy.
1174      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1175      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1176      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1177      tutorial_global_oce_biogeo    <- copy of dic_example
1178      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1179      tutorial_plume_on_slope       <- copy of plume_on_slope
1180      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1181      tutorial_global_oce_optim     <- empty for now (David ?)
1182      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1183     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1184    o correct a sign problem in cost_scat.F
1185    o obcs and ptracers: fix boundary conditions for advections schemes
1186      with larger stencil
1187    o thsice adjoint: start
1188    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1189      completeness
1190    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1191      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1192    o ptracers adjoint:
1193      * avoid extensive recomputatations
1194      * fix missing re-init. of gptr (missed by TAF)
1195    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1196      me to turn off the excessive output to STDOUT that this package produces
1197    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1198      and add those terms in Vector-Invariant formulation.
1199    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1200      if the control period (xx_hfluxperiod etc) is 0
1201    o in profiles pkg, clean routines and fix details
1202    o in ecco pkg, reading ssh data:
1203      fix problem in case the model does not start at iter0=0
1204    o fix mnc-pickup/restart for ptracers
1205    o new package prifiles:
1206      code to compute profile-based cost by Gael Forget
1207      (modifs in ecco, ctrl, autodiff)
1208    o Benign bug fix in initialization (spotted by M. Mazloff) of
1209      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1210    
1211  checkpoint58c_post  checkpoint58c_post
1212  o adjoint: finish NLFS adjoint and provide reference output in  o adjoint: finish NLFS adjoint and provide reference output in
1213    verification/global_ocean.90x40x15/results_ad_nlfs    verification/global_ocean.90x40x15/results_ad_nlfs

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