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revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC revision 1.1036 by jmc, Mon Oct 27 20:15:21 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 fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
8      (#undef REAL4_IS_SLOW)
9     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
10       coordinate variable
11     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
12       (surface forcing fields), removes some of the functionality
13     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
14     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
15       probably not all: copy _RS surface flux fields to RL field before
16       calling DIAGNOSTICS_FILL
17     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
18       real*4 (CALL EXCH_*_RS) versions.
19     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
20       (generate new output).
21    
22    checkpoint61e
23    o gmredi (Visbeck-variable-K):
24      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
25      - change computation of Visbeck-K where Slope > Smax :        
26        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
27        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
28    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
29      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
30    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
31    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
32      does not become too large (to avoid precision problems in implicit-diffusion
33      solver); update ideal_2D_oce output.
34    o pkg ggl90:
35      - in ggl90_cal.F: compute only one set of visc/diff, used to
36        step forward TKE/T/S/momentum
37      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
38        have Prandlt =1)
39    o gmredi (fm07):
40      - add lower limit on Transition layer thickness + lower limit on 1/lambda
41      - allow to set few more params from data.gmredi
42    o pkg ggl90:
43          - add missing sqrt(2) factor in computation of mixing length
44            scale in ggl90_calc.F
45            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
46    
47    checkpoint61d
48    o adjoint modifs
49      - adapt to new field rhoInSitu
50      - allow to revert from StoreDynVars2D, StoreDynVars3D
51        to individual fields
52        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
53    o store 3-D (in-situ) density in commom block (DYNVARS.h)
54     - save 1 rho computation.
55     - no longer modify T & S inland when using down_slope pkg.
56    o gad_som : allow to switch to SOM advection for T & S without corresponding
57      pickup files (using new S/R: MDS_CHECK4FILE).
58    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
59      (for useSingleCpuIO to work in multi-threaded)
60    o pkg/shelfice:
61     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
62       with SHELFICEtopoFile in data.shelfice
63     - move code for reading ice shelf topography and modifying hFacC into separate
64       subroutines of the shelfice package
65     - separate initialisation of "fixed" and "variable" variables
66     - kTopC is not (yet) replaced by kSurfC, although this is possible
67    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
68    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
69      and rename:
70      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
71      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
72    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
73    
74    checkpoint61c
75    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
76      to add mass source/sink of fluid in the interior (3-D generalisation
77      of oceanic real-fresh water flux).
78    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
79    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
80    o new pkg: down_slope
81      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
82      - presently, modify T & S inland (dwnslp_calc_rho.F).
83        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
84      - implementation for ocean in P-coords not tested.
85      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
86    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
87      (to facilitate conversion of oceanic pkg to p-coordinate).
88    o change FIND_RHO to FIND_RHO_2D :
89      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
90    o new pkg: cheapaml
91    
92    checkpoint61b
93    o exch2:
94      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
95      - no longer depend on the order sequence (N,S,E,W).
96      - 3rd exchange no longer needed (tested with 24 tiles).
97      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
98      - exch_UV_A-grid readily available (but not yet tested).
99      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
100      (both are no longer needed) in exch_uv: no effect in forward run; but
101       get truncation error differences with adjoint exch.
102    o exch2:
103     - change index-bounds storage (moved from target to local tile,
104       more intuitive this way) ; rename/remove some variables.
105     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
106    
107    checkpoint61a
108    o exch2/matlab-topology-generator:
109      fix bug in index bounds for N-S internal exchange (hard to tell if this
110      had any effect on the solution).
111    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
112      is exceeded
113    o testreport: modify syntax of awk, so that it works also with
114      awk, and not only with nawk and gawk
115    
116    checkpoint61
117    o autodiff
118      Change default for TAF usage by removing argument '-nonew_arg'
119      This changes TAF subroutine argument list (ordering of active var.)
120      Omission of this flag leads to incompatibility w.r.t. TAMC
121      To restore TAMC-compatibility, need following modifs:
122      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
123      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
124      Tested TAF version is 1.9.22
125      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
126    
127    checkpoint60
128    --->>> This is the last checkpoint for which generating the adjoint
129    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
130    --->>> by default.
131    --->>> Future checkpoints will ommit this flag by default.
132    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
133    o pkg/grdchk: Add gradient check to etan0 perturbations.
134    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
135    o pkg/autodiff: more flexibility in zeroadj.
136      model/src: modifying do_oceanic_phys.F accordingly.
137    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
138    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
139      special setup of gmredi for which the adjoint is stable
140      enough for parameter optimization.
141    o bridging the gap between eddy stress and GM.
142      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
143          along with a change in CPP option (now ALLOW_EDDYPSI).
144      -> when using GM w/ GM_AdvForm:
145          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
146          is applied either in the tracer Eq. or in momentum Eq.
147          depending on data.gmredi (intro. GM_InMomAsStress).
148      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
149      The key modifications are in model/src/taueddy_external_forcing.F
150      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
151    
152    checkpoint59r
153    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
154      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
155      fix option to read coriolis(@ cell-corner) from files with CS-grid.
156    o pkg/mnc: add some attributes to standard 1D-coordinate variables
157    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
158      mass points, when using mnc for output
159      - add runtime parameter (missing_value, missing_value_int) to override
160        default (which is the value of getcon('UNDEF'))
161    o pkg/mnc: prepare mnc for the actual use of missing values with the
162      diagnostics package: small fix in mnc_cw_readwrite.template and more
163      initialisation of never used fields
164      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
165      versions
166    o pkg/thsice/thsice_ini_vars.F added default initial values so that
167      thermodynamics sea ice solver does not blow up when some initial fields
168      are missing.
169    o move from external_forcing_surf.F to ini_forcing.F
170      the p-coord. hack consisting in using pLoad to set phi0surf ;
171      update output of tutorial_global_oce_in_p (affected @ truncation level).
172    o Freshen up a bit hs94.1x64x5, notably:
173      remove rotationPeriod and tRef=5*0. (adjoint only), and add
174      exactConserv=.TRUE.
175    o pkg/generic_advdiff:
176      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
177      applies to files where Temperature & Salinity 2nd Order moments are used.
178    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
179      this uses a dynamically allocated internal state data structure
180      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
181      and requires a fortran 90 compiler
182    
183    checkpoint59q
184    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
185       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
186    o Refresh tutorial_global_oce_biogeo, notably:
187      - change bathymetry (put back seamounts in ACC, use hFacs)
188      - change EOS (POLY3 --> JMD95Z)
189      - use Bryan-Lewis vertical diffusivity
190      - use multidimensional advection
191      - remove old virtual virtual in dic pkg, now done through ptracer pkg
192      - change a couple of parameters in dic pkg
193    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
194    o pkg/obcs: change default to OBCSfixTopo = .true.,
195      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
196      - replace "debugMode" with "debugLevel .GE. debLevB"
197    o implementation of TAF directives for gchem,cfc,dic
198    o remove "exp5" (replaced by tutorial_deep_convection).
199    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
200      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
201      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
202      --> changes results in exp4, seaice_obcs
203    o tutorial_deep_convection :
204      update the set-up and increase resolution and domain size ; start
205      from pseudo initial conditions = output at t=120mn in order to see
206      something happening when running testreport.
207    o pkg/seaice: add os7mp as an advection scheme
208                  add check for advection schemes
209                  add a flag for restoring T and S underneath sea ice
210    o pkg/my82: add netcdf-support and diagnostics
211    o thsice pkg:
212      - Now hsMax limits snow height by turning it into ice following
213        flooding scheme (and now conserving energy)
214      - Slight rewriting of the formula in thsice_calc_thick.F
215      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
216      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
217    
218    checkpoint59p
219    o gchem / dic / cfc :
220      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
221      - add new parameter files: "data.dic" & "data.cfc" ;
222      - various re-arrangement in initialisation & header file ;
223      - fix tutorial_global_oce_biogeo for multi-threaded test.
224    o pkg/dic: test for "pickup_dic" file when restarting ;
225      if no pickup-file, can restart with a re-initialised pH (same as it did
226      before) providing pickupStrictlyMatch is set to False.
227    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
228      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
229    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
230      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
231    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
232     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
233       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
234    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
235       scheme to use for vorticty-term ;
236     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
237       (with default selectVortScheme, return to original discretisation)
238     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
239    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
240    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
241      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
242      also fix diagnostics VISCAHW & VISCA4W.
243    
244    checkpoint59o
245    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
246    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
247      move a few statemens out the main loop into separate loops
248    o pkg/shelfice:
249      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
250        (kg/m^2/s), does not break tests, because in verification/isomip,
251        rhoConstFresh=rhoConst (by accident)
252      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
253      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
254        new file model/src/seawater.F, so that they are available for all pkgs.
255      - convert potential temperature into in-situ temperature. This changes the
256        isomip tests => update tests
257    o add a flag writePickupAtEnd (default=true) to be able to suppress
258      writing a pickup at the last timestep
259    o tools/mpack-1.6 :
260      - disable automake (not working) and autoconf (not needed).
261      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
262        also cleaner with much less compilation warnings.
263    o pkg/profiles:
264      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
265      (for "less than 32 characters name" compiler requirement)
266    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
267      conditions that have a different sampling frequency than S/T/U/V obcs
268    o pkg/diagnostics (stats-diags):
269      - fix global Min/Max in case 1 processor get only empty tiles
270    o genmake2: replace (4 times)
271         make genmake_tc_1.o >> genmake_warnings 2>&1
272      with
273         COMM="$CC $CFLAGS -c genmake_tc_1.c"
274         echo $COMM >> genmake_warnings
275         $COMM >> genmake_warnings 2>&1
276      to make genmake2 always see the value of CC as specified in the optfile.
277    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
278      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
279      - modify verification advect_cs test to test SOM-advection on CS-grid.
280    o pkg/ctrl:
281      - Rewrite of ctrl_map_ini_ecco.F,
282        introducing a generic routine (ctrl_map_ini_gen.F).
283      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
284    
285    checkpoint59n
286    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
287      number in dedicate array "hdiag":
288      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
289        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
290      - many small changes (integer format) for large number of diagnostics
291      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
292        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
293    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
294      usingSphericalGrid, this allows to define the rotated grid coordinates
295      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
296      geographical coordinates according to the inverse of the rotation defined
297      by the Euler angles, so that Coriolis parameter and online-interpolation by
298      exf works with the geographical coordinates on XC/YC/XG/YG.
299      Naturally, this feature does not work with all packages, so some
300      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
301      profiles), because there the coordinates are assumed to be regular
302      spherical grid coordinates.
303    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
304      - introduce isopycnal diffusion coefficient control.
305    o tools/adjoint_options:
306      - additional control vector components.
307    o pkg/mnc: have mnc create marginally meaning full coordinate variables
308      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
309    o pkg/mypackage:
310      - add example of read/write pickup for state-var ;
311      - add entry points to the main code for state-vars diags & write-pickup.
312    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
313      transitions for useExfYearlyFields
314      - add new subroutine that determines the file to read from for
315        use*YearlyFields = .TRUE. and .FALSE.
316      - add a verification experiment to global_with_exf that tests
317        useExfYearlyFields with USE_EXF_INTERPOLATION defined
318    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
319      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
320      subroutines (which could be generated from a template, because they are
321      almost identical), for now they are included in obcs_prescribe_read.F for
322      simplicity
323    o pkg/exf:
324      - add a little more diagnostic to exf_interp_read (in analogy to
325        mds_read_field, can be turned off with debugLevel < debugLevA=1)
326      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
327        ugly but fast by unrolling short inner loops, inserting a unroll=8
328        directive in routine lagran, and splitting a loop and making do while the
329        outermost loop (the latter requires the intoduction of index arrays)
330    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
331    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
332      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
333    o verification/seaice_obcs: updated for restart test and latest options
334    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
335      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
336      for now this is only available for the C-grid code and also within
337      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
338    
339    checkpoint59m
340    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
341      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
342    o gad_som : fix flux output (& diagnostics) to have same units as other  
343      advection scheme fluxes (was previously multiplied by deltaT).  
344    o added verification/seaice_obcs both to test seaice open boundaries
345      and to provide an example matlab scrpt for generating them
346    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
347    o pkg/salt_plume: clean up salt_plume_frac.F to
348      remove redundancy in PlumeMethod 1 and 4
349    o pkg/kpp: added saltplume diagnostics
350    o pkg/obcs and pkg/seaice:
351      - do not set uice and vice to zero when OB*icefile are unspecified
352      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
353      - moved seaice tracer obcs after call to seaice_growth
354    o pkg/salt_plume: added various options for salt plume depth
355      criterion and for vertical distribution of the salt
356    
357    checkpoint59l
358    o pkg/ptracers: new version of ptracers pickup:
359      read meta file and write only fields which are needed to restart.
360      ( same logic as main pickup file ; also using pickupStrictlyMatch )
361    o pkg/seaice:
362      - add timescale for melting due to warm mixed layer as a means of
363        setting SEAICE_availHeatFrac more conveniently
364      - add a CPP-flag/runtime parameter check for flooding algorithm
365      - reformulated availHeat in seaice_growth.F to be independent of AREA
366    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
367      unit changes
368    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
369    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
370      SX vector computer.
371    o pkg/seaice:
372      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
373        seaice forcing fields can now be read only through pkg/exf
374      - removed some unused halos
375    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
376    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
377      or U/VICE from U/VWIND before computing U/VSTRESS
378    
379    checkpoint59k
380    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
381      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
382    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
383      all experiments pass when compile with un-initialised var. checking option.
384    o added pkg/salt_plume
385    o script to test restart (for now, in MITgcm_contrib/jmc_script)
386    o pkg/seaice: new read/write pickup version.
387      read meta file and write only fields which are needed to restart.
388      ( same logic as main pickup file ; also using pickupStrictlyMatch )
389    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
390    o lab_sea.hb87: modify the domain & update output.hb87.txt :
391      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
392      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
393      process. Fixed here by closing the domain at the Northern boundary.
394    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
395    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
396      a set of consecutive levels in/from a 3-D array.
397    o pkg/ptracers:
398      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
399      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
400    
401    checkpoint59j
402    o in pkgs: dic, obcs, offline, rbcs:
403      standard way to compute coeff. for time interpolation between 2 time reccords
404      which retains full precision (& make results less dependent on compiler).
405      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
406    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
407      packages instead of reading ice cover and wind speed separately
408    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
409     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
410      to allow to compile customized code before the update)
411    o cleaning-up:
412      - fix CPP instruction syntax in pkg/obcs
413      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
414        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
415      - fix some threads issue in IO parts.
416    o pkg/dic:
417      - add tons of "_d 0" (--> much better testreports !)
418       and then update outputs of tutorial_global_oce_biogeo
419    o pkg/mom_fluxform:
420      add a special version of momentum advection intended to conserve momentum
421      next to a bathymetry step or a coastline edge. (default = off = #undef)
422    o new read/write pickup version:
423      - for now, only implemented for main (mdsio) pickup file.
424      - write out only what is needed to restart; merge pickup_nh , pickup_ph
425        and main pickup together.
426      - read meta file; read only what is needed to restart; stop if a field
427        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
428        if it make sense (even if the restart is not perfect).
429      - if no meta file, assume that pickup to read corresponds exactly to
430        a pickup that would currently be written.
431      - read pickup written in the old format (until checkpoint59i) if it
432        recognizes an old meta file (no field-list).
433      - add a meta file in exp. which starts from a pickup: 2 cases:
434        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
435         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
436        b) a meta file describing the content of the associated pickup file
437         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
438    o pkg/mdsio & pkg/rw:
439      - new routine to read a meta file ; new set of routine to read
440        Multiple-fields file (with meta file).
441    o added open boundary conditions capability for seaice
442        HSNOW, HSALT, UICE, and VICE
443    
444    checkpoint59i
445    o adjoint:
446      * fix multiDimAdvection adjoint
447        (partial recomputation problem by TAF for fVerT(:,:,kDown)
448        and comlev1 size definition (maxpass vs. max. number of tracers)
449      * verification/global_ocean.90x45x15 adjoint now tests
450        NLFS and multiDimAdvection using DST3 (=30)
451      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
452    o pkg/kpp: add "_d 0" to real constant (if missing);
453      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
454      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
455    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
456      for internal parameters related to restart process (formerly from PARAMS.h)
457      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
458    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
459      as argument. (only atm2d & obcs write_pickup have not yet been updated)
460    o pkg/monitor:
461      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
462      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
463      - account for deep Atmosphere factor and density factor (anelastic)
464    o added open boundary conditions capability for seaice HEFF and AREA
465    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
466      thermodynamics
467      - requires a little reorganization, which affects the testreport results
468        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
469        so that now the conservative form is tested
470      - add a few comments
471    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
472    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
473    o add new diagnostics to seaice: advective, diffusive fluxes (only for
474      multidim-advection, for scheme 2 they are not filled) and transports,
475      thermodynamic growth rates
476    o change units of EmPmR (inside the code, + within coupling interface)
477      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
478      Affects results @ truncation level (cg2d match) and update output of
479       experiments: lab_sea(6), global_ocean.90x40x15(10),
480      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
481      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
482      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
483      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
484    
485    checkpoint59h
486    o pkg/exf:
487      - improve vectorization by moving if-statement out of loops in
488        exf_mapfields, exf_radiation
489      - exf_bulkformulae.F: introduce 2D fields and vectorize code
490    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
491    o testreport:
492      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
493        monitor & update offline_exf_seaice exp. output.
494      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
495    o pkg/seaice:
496      - bug fix in the evp solver: boundary conditions were affected be
497        masking of zMax/zMin (changes results)
498      - minor bug fix in boundary conditions in seaice_calc_strainrates
499        (changes results for no_slip)
500      - seaice_lsr.F: make interpolation of eta dependent on boundaries
501      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
502      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
503        stress formulation and no-slip boundary conditions
504    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
505      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
506    o pkg/seaice: a first HSALT time stepping equation has been checked in
507    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
508      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
509      without requiring DO-IF statements
510    o pkg/thsice:
511      use continuous power-law function for partition of energy between lateral
512      melting/freezing and thinning/thickening ; old code using step function
513      still available with #undef THSICE_FRACEN_POWERLAW
514      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
515    o testreport: change AD testing : check against results/output_adm.txt
516      using same scripts as for forward test.
517    
518    checkpoint59g
519    o adjoint testing: in preparation for changing testreport:
520      - output format: cost and grad written on separated lines
521      - ad output results in directory "results" (instead of "results_ad")
522    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
523    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
524    o pkg/ecco: allow user defined cost function contributions
525    o testreport:
526      Allow to choose (per experiment) the list of tested output variables
527       and the main variable (used to issue a pass/FAIL ) ;
528      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
529      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
530      Also modify printing of summary:
531       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
532       b) echo the list of tested variables in the individual summary.txt of
533          each experiment.
534    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
535      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
536      (but still depend on the tile decompostion of the domain).
537    o pkg/seaice: change a discretization detail to make the B-grid code
538      "more symmetric". This change is likely to remove all "ridges/leads" that
539      where quasi-aligned with the grid in B-grid solutions. It may also be
540      the solution to the stress coupling issues with the B-grid.
541    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
542      remove .cvsignore from input dir. (since testreport no longer run here).
543    o pkg/thsice:
544     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
545     - fix reshaping of sea-ice just after advection:
546       melt all the ice only if ice-volume is too small.
547     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
548       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
549     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
550    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
551      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
552    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
553      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
554      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
555      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
556      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
557      -> update output.txt
558    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
559     this affects truncation error: -> update output.txt of exp:
560      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
561      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
562    
563    checkpoint59f
564    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
565    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
566      a bounded range (in forward mode)
567    o pkg/ecco, ctrl, autodiff and mom_common:
568     internal parameter controls, completements of implementations
569    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
570    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
571      (not seem any difference in testing results).
572    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
573       at face corners.
574    o pkg/generic_advdiff:
575     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
576      loop range indices for computing vertical advection tendency
577      and do the calculation in the interior only (no overlap) ;
578      for now, only implemented for SOM advection (to save CPU time).
579     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
580    o exch2 adjoint
581      First set of changes:
582      - add exch2 hand-written adjoint templates
583      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
584        This will require cleanup in pkg/autodiff/*.F
585        (changed routines currently kept separate in verif. code/)
586      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
587        that used to hide exch2 or cubed-sphere specific code
588        (commented via 'cph-exch2')
589    o pkg/seaice
590      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
591    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
592       output of global_ocean.cs32x15.thsice .
593    
594    checkpoint59e
595    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
596      for B-grid vector (not yet tested) and C-grid vector (<- only used
597      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
598    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
599      (#ifdef ALLOW_SALT_PLUME)
600    o gather_2d/scatter_2d: removed halo regions
601    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
602      scheme and the corresponding test case (under front_relax dir). For now,
603      only available with Skew-flux form and not yet tested in realistic set-up.
604      adjoint: store directives updated, but gradient checks deteriorated,
605      so maybe GM/Redi adjoint is now broken.
606    o seaice adjoint
607      * add AREA, HEFF, HSNOW as control variable
608        (should not change lab_sea results)
609      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
610    o pkg/seaice:
611      * added computation of saltFlux in seaice_growth;
612        For time being, sea ice salinity is assumed constant
613        contribution of snow flooding to freshening of sea ice is neglected.
614        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
615        defaults to 0.0 in order to maintain backward compatibility.
616        Typical values for SEAICE_salinity are 4 to 10 g/kg.
617      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
618      * added SEAICE_availHeatFrac, which specifies fraction of surface level
619        heat content used to melt or grow ice
620      * commented out cap of HICE: it helps keep ice thinner
621      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
622      * applied OBCS T/S mask to HEFFM sea ice mask
623    
624    checkpoint59d
625    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
626     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
627     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
628    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
629     and change default value of parameter "GM_Small_Number";
630     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
631       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
632       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
633    o pkg/ecco: cost function when applying pkg/smooth to controls
634    o pkg/ctrl: add forcingPrecond run time parameter
635    o pkg/seaice:
636     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
637     - fix bug in metric terms of u-equation in LSR solver (implicit part),
638       changes verification/lab_sea
639     - rearrange implicit part of u-equation in LSR solver to make it easier to
640       read, understand, and debug. This causes changes at the truncation level.
641     - fix (serious) bug in the boundary conditions (sign error in the implicit
642       part) of the LSR solver. Changes all LSR results.
643     - fixed problem with HSNOW initialization to avoid thick snow when AREA
644       is initilized with small values - does not change lab_sea results.
645     - added HsnowFile initialization capability
646    o pkg/smooth: addition to model/src and pkg/ctrl so allow
647     initialization of pkg/smooth and application to control vector
648    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
649    o dependencies: pkg/profiles requires pkg/cal
650    o pkg/profiles:
651     - added option ALLOW_PROFILES_GENERICGRID
652         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
653         that interpolation information (grid points and coefficients) is provided
654         within the netcdf input files.
655         -> sample matlab scripts can be found in MITgcm_contrib/gael
656         that allow you to prepare netcdf input files.
657     - also modified: cleaner include statements, cleaner error print statements,
658       cleaner stops when error, and more tests of the netcdf input files consistency.
659    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
660    o pkg/seaice:
661     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
662       requires a new routine: seaice_diagnostics_fill.F
663     - make sure that seaice does not move if not forced (pressure replacement
664       method, Hibler and Ip, 1995), changes results
665     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
666     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
667       It is turned off by default (=-1.), because it changes the results.
668     - make it possible to read AREA from a file, too.
669    
670    checkpoint59c
671    o add S/R and diagnostics for oceanic mixed-layer depth
672    o move GMRedi call after all vertical mixing schemes (including KPP)
673    o pkg/thsice:
674     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
675      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
676    o pkg/obcs:
677     - bug fix for balance code
678    o pkg/seaice:
679      - allow values of SEAICE_elasticParm > 1
680      - add new parameter SEAICE_evpTauRelax as an alternative
681        to SEAICE_elasticParm
682      - make lsr boundary conditions free slip (by default), changes result
683      - add code for no slip boundary conditions for lsr
684      - set minimum of zeta to zero (and not 4e8) (changes results)
685      - add a cap on AREA after advecting AREA if seaice_growth is not called
686    o change calculation of Visbeck K:
687      - no longer depend on tapering scheme; instead, compute slope (limited
688        by GM_maxSlope). this is equivalent to what was comuted before with
689        clipping or linear tappering.
690      - fix vertical averaging (wrong by 1/2 level)
691      - leave the old version (but will not be maintained) within
692        #ifdef OLD_VISBECK_CALC / #endif
693      - update output of exp. ideal_2D_oce
694    o change error catch in calc_r_star to improve vectorization
695    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
696      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
697    o adjoint:
698      Re-organized adjoint checkpointing according to Matt Mazloff
699      (but with modifs/completions/cleanups)
700      Storing is now bundled into large arrays to optimized I/O
701      (and second step in cleanup of the_main_loop)
702    
703    checkpoint59b
704    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
705      - export/import (between ocean & coupler) fields needed for ocean DIC.
706    o pkg/seaice:
707      - get rid of three more exchanges seaice_calc_viscosities (required
708        different loop boundaries in seaice_lsr and seaice_ocean_stress)
709      - bug fix in seaice_ocean_stress (update of lab_sea required)
710      - reduce loop boundaries to necessary minimum also in seaice_evp
711      - go back to the old way of computing deltaC/Z as the adjoint likes that
712        better
713    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
714      passive tracer to an Age Tracer) + update output.txt
715    o pkg/exf:
716      - implement A-grid / C-grid selection for wind-stress input files.
717      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
718      for now, in exf_bulk_largeyeager04.F only :
719      - change implementation for case where windspeed + 2. components wind-stress
720        are read-in. AND use rhoConstFresh to convert evap.
721    o pkg/seaice:
722      - use correct EXCH_UV for wind-forcing (on A-grid).
723      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
724        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
725    o pkg/exf:
726      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
727      EXF_INTERPOLATION:
728      - merge global_with_exf/code version of exf_interp_read.F
729        to the main code ;
730      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
731        reading the file ; Important: This options needs to be defined to recover
732        previous code.
733        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
734      - no longer loose real*8 precision along the way when using exf_iprec=64.
735  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
736      - change discretisation of evp-solver in order to avoid another exchange
737        (changes lab_sea) and clean up a little
738      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
739        help the adjoint (this also changes the results slightly)
740      - add a few "_d 0" where they had been missing in seaice_evp.F
741      - cleaning up: remove unused seaice_calc_rhs.F
742  o pkg/exf: some cleaning-up:  o pkg/exf: some cleaning-up:
743    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
744    - cleaned-up Large&Yeager04 routine which should eventually    - cleaned-up Large&Yeager04 routine which should eventually
# Line 18  o pkg/exf: some cleaning-up: Line 752  o pkg/exf: some cleaning-up:
752  o pkg/thsice:  o pkg/thsice:
753   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
754    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
755    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
756    and in thsice_extend.F:    and in thsice_extend.F:
757    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
758    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 768  o pkg/kpp
768  o pkg/seaice  o pkg/seaice
769   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
770   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
771    o OpenAD
772     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
773    
774  checkpoint59a  checkpoint59a
775  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 53  o in FFIELDS.h: Line 789  o in FFIELDS.h:
789       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
790  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
791  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
792      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
793        are no longer updating the vertical diffusivity array
794        (passed as argument) but are (re-) setting those arrays.
795  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
796    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
797      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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