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revision 1.760 by jmc, Sun Dec 24 22:30:57 2006 UTC revision 1.990 by dfer, Fri May 9 22:39:42 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 Freshen up a bit hs94.1x64x5, notably:
8      remove rotationPeriod and tRef=5*0. (adjoint only), and add exactConserv=.TRUE.
9    o pkg/generic_advdiff:
10      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
11      applies to files where Temperature & Salinity 2nd Order moments are used.
12    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
13      this uses a dynamically allocated internal state data structure
14      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
15      and requires a fortran 90 compiler
16    
17    checkpoint59q
18    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
19       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
20    o Refresh tutorial_global_oce_biogeo, notably:
21      - change bathymetry (put back seamounts in ACC, use hFacs)
22      - change EOS (POLY3 --> JMD95Z)
23      - use Bryan-Lewis vertical diffusivity
24      - use multidimensional advection
25      - remove old virtual virtual in dic pkg, now done through ptracer pkg
26      - change a couple of parameters in dic pkg
27    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
28    o pkg/obcs: change default to OBCSfixTopo = .true.,
29      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
30      - replace "debugMode" with "debugLevel .GE. debLevB"
31    o implementation of TAF directives for gchem,cfc,dic
32    o remove "exp5" (replaced by tutorial_deep_convection).
33    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
34      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
35      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
36      --> changes results in exp4, seaice_obcs
37    o tutorial_deep_convection :
38      update the set-up and increase resolution and domain size ; start
39      from pseudo initial conditions = output at t=120mn in order to see
40      something happening when running testreport.
41    o pkg/seaice: add os7mp as an advection scheme
42                  add check for advection schemes
43                  add a flag for restoring T and S underneath sea ice
44    o pkg/my82: add netcdf-support and diagnostics
45    o thsice pkg:
46      - Now hsMax limits snow height by turning it into ice following
47        flooding scheme (and now conserving energy)
48      - Slight rewriting of the formula in thsice_calc_thick.F
49      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
50      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
51    
52    checkpoint59p
53    o gchem / dic / cfc :
54      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
55      - add new parameter files: "data.dic" & "data.cfc" ;
56      - various re-arrangement in initialisation & header file ;
57      - fix tutorial_global_oce_biogeo for multi-threaded test.
58    o pkg/dic: test for "pickup_dic" file when restarting ;
59      if no pickup-file, can restart with a re-initialised pH (same as it did
60      before) providing pickupStrictlyMatch is set to False.
61    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
62      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
63    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
64      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
65    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
66     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
67       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
68    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
69       scheme to use for vorticty-term ;
70     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
71       (with default selectVortScheme, return to original discretisation)
72     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
73    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
74    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
75      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
76      also fix diagnostics VISCAHW & VISCA4W.
77    
78    checkpoint59o
79    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
80    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
81      move a few statemens out the main loop into separate loops
82    o pkg/shelfice:
83      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
84        (kg/m^2/s), does not break tests, because in verification/isomip,
85        rhoConstFresh=rhoConst (by accident)
86      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
87      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
88        new file model/src/seawater.F, so that they are available for all pkgs.
89      - convert potential temperature into in-situ temperature. This changes the
90        isomip tests => update tests
91    o add a flag writePickupAtEnd (default=true) to be able to suppress
92      writing a pickup at the last timestep
93    o tools/mpack-1.6 :
94      - disable automake (not working) and autoconf (not needed).
95      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
96        also cleaner with much less compilation warnings.
97    o pkg/profiles:
98      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
99      (for "less than 32 characters name" compiler requirement)
100    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
101      conditions that have a different sampling frequency than S/T/U/V obcs
102    o pkg/diagnostics (stats-diags):
103      - fix global Min/Max in case 1 processor get only empty tiles
104    o genmake2: replace (4 times)
105         make genmake_tc_1.o >> genmake_warnings 2>&1
106      with
107         COMM="$CC $CFLAGS -c genmake_tc_1.c"
108         echo $COMM >> genmake_warnings
109         $COMM >> genmake_warnings 2>&1
110      to make genmake2 always see the value of CC as specified in the optfile.
111    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
112      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
113      - modify verification advect_cs test to test SOM-advection on CS-grid.
114    o pkg/ctrl:
115      - Rewrite of ctrl_map_ini_ecco.F,
116        introducing a generic routine (ctrl_map_ini_gen.F).
117      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
118    
119    checkpoint59n
120    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
121      number in dedicate array "hdiag":
122      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
123        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
124      - many small changes (integer format) for large number of diagnostics
125      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
126        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
127    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
128      usingSphericalGrid, this allows to define the rotated grid coordinates
129      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
130      geographical coordinates according to the inverse of the rotation defined
131      by the Euler angles, so that Coriolis parameter and online-interpolation by
132      exf works with the geographical coordinates on XC/YC/XG/YG.
133      Naturally, this feature does not work with all packages, so some
134      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
135      profiles), because there the coordinates are assumed to be regular
136      spherical grid coordinates.
137    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
138      - introduce isopycnal diffusion coefficient control.
139    o tools/adjoint_options:
140      - additional control vector components.
141    o pkg/mnc: have mnc create marginally meaning full coordinate variables
142      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
143    o pkg/mypackage:
144      - add example of read/write pickup for state-var ;
145      - add entry points to the main code for state-vars diags & write-pickup.
146    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
147      transitions for useExfYearlyFields
148      - add new subroutine that determines the file to read from for
149        use*YearlyFields = .TRUE. and .FALSE.
150      - add a verification experiment to global_with_exf that tests
151        useExfYearlyFields with USE_EXF_INTERPOLATION defined
152    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
153      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
154      subroutines (which could be generated from a template, because they are
155      almost identical), for now they are included in obcs_prescribe_read.F for
156      simplicity
157    o pkg/exf:
158      - add a little more diagnostic to exf_interp_read (in analogy to
159        mds_read_field, can be turned off with debugLevel < debugLevA=1)
160      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
161        ugly but fast by unrolling short inner loops, inserting a unroll=8
162        directive in routine lagran, and splitting a loop and making do while the
163        outermost loop (the latter requires the intoduction of index arrays)
164    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
165    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
166      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
167    o verification/seaice_obcs: updated for restart test and latest options
168    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
169      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
170      for now this is only available for the C-grid code and also within
171      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
172    
173    checkpoint59m
174    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
175      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
176    o gad_som : fix flux output (& diagnostics) to have same units as other  
177      advection scheme fluxes (was previously multiplied by deltaT).  
178    o added verification/seaice_obcs both to test seaice open boundaries
179      and to provide an example matlab scrpt for generating them
180    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
181    o pkg/salt_plume: clean up salt_plume_frac.F to
182      remove redundancy in PlumeMethod 1 and 4
183    o pkg/kpp: added saltplume diagnostics
184    o pkg/obcs and pkg/seaice:
185      - do not set uice and vice to zero when OB*icefile are unspecified
186      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
187      - moved seaice tracer obcs after call to seaice_growth
188    o pkg/salt_plume: added various options for salt plume depth
189      criterion and for vertical distribution of the salt
190    
191    checkpoint59l
192    o pkg/ptracers: new version of ptracers pickup:
193      read meta file and write only fields which are needed to restart.
194      ( same logic as main pickup file ; also using pickupStrictlyMatch )
195    o pkg/seaice:
196      - add timescale for melting due to warm mixed layer as a means of
197        setting SEAICE_availHeatFrac more conveniently
198      - add a CPP-flag/runtime parameter check for flooding algorithm
199      - reformulated availHeat in seaice_growth.F to be independent of AREA
200    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
201      unit changes
202    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
203    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
204      SX vector computer.
205    o pkg/seaice:
206      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
207        seaice forcing fields can now be read only through pkg/exf
208      - removed some unused halos
209    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
210    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
211      or U/VICE from U/VWIND before computing U/VSTRESS
212    
213    checkpoint59k
214    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
215      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
216    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
217      all experiments pass when compile with un-initialised var. checking option.
218    o added pkg/salt_plume
219    o script to test restart (for now, in MITgcm_contrib/jmc_script)
220    o pkg/seaice: new read/write pickup version.
221      read meta file and write only fields which are needed to restart.
222      ( same logic as main pickup file ; also using pickupStrictlyMatch )
223    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
224    o lab_sea.hb87: modify the domain & update output.hb87.txt :
225      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
226      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
227      process. Fixed here by closing the domain at the Northern boundary.
228    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
229    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
230      a set of consecutive levels in/from a 3-D array.
231    o pkg/ptracers:
232      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
233      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
234    
235    checkpoint59j
236    o in pkgs: dic, obcs, offline, rbcs:
237      standard way to compute coeff. for time interpolation between 2 time reccords
238      which retains full precision (& make results less dependent on compiler).
239      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
240    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
241      packages instead of reading ice cover and wind speed separately
242    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
243     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
244      to allow to compile customized code before the update)
245    o cleaning-up:
246      - fix CPP instruction syntax in pkg/obcs
247      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
248        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
249      - fix some threads issue in IO parts.
250    o pkg/dic:
251      - add tons of "_d 0" (--> much better testreports !)
252       and then update outputs of tutorial_global_oce_biogeo
253    o pkg/mom_fluxform:
254      add a special version of momentum advection intended to conserve momentum
255      next to a bathymetry step or a coastline edge. (default = off = #undef)
256    o new read/write pickup version:
257      - for now, only implemented for main (mdsio) pickup file.
258      - write out only what is needed to restart; merge pickup_nh , pickup_ph
259        and main pickup together.
260      - read meta file; read only what is needed to restart; stop if a field
261        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
262        if it make sense (even if the restart is not perfect).
263      - if no meta file, assume that pickup to read corresponds exactly to
264        a pickup that would currently be written.
265      - read pickup written in the old format (until checkpoint59i) if it
266        recognizes an old meta file (no field-list).
267      - add a meta file in exp. which starts from a pickup: 2 cases:
268        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
269         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
270        b) a meta file describing the content of the associated pickup file
271         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
272    o pkg/mdsio & pkg/rw:
273      - new routine to read a meta file ; new set of routine to read
274        Multiple-fields file (with meta file).
275    o added open boundary conditions capability for seaice
276        HSNOW, HSALT, UICE, and VICE
277    
278    checkpoint59i
279    o adjoint:
280      * fix multiDimAdvection adjoint
281        (partial recomputation problem by TAF for fVerT(:,:,kDown)
282        and comlev1 size definition (maxpass vs. max. number of tracers)
283      * verification/global_ocean.90x45x15 adjoint now tests
284        NLFS and multiDimAdvection using DST3 (=30)
285      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
286    o pkg/kpp: add "_d 0" to real constant (if missing);
287      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
288      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
289    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
290      for internal parameters related to restart process (formerly from PARAMS.h)
291      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
292    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
293      as argument. (only atm2d & obcs write_pickup have not yet been updated)
294    o pkg/monitor:
295      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
296      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
297      - account for deep Atmosphere factor and density factor (anelastic)
298    o added open boundary conditions capability for seaice HEFF and AREA
299    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
300      thermodynamics
301      - requires a little reorganization, which affects the testreport results
302        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
303        so that now the conservative form is tested
304      - add a few comments
305    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
306    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
307    o add new diagnostics to seaice: advective, diffusive fluxes (only for
308      multidim-advection, for scheme 2 they are not filled) and transports,
309      thermodynamic growth rates
310    o change units of EmPmR (inside the code, + within coupling interface)
311      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
312      Affects results @ truncation level (cg2d match) and update output of
313       experiments: lab_sea(6), global_ocean.90x40x15(10),
314      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
315      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
316      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
317      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
318    
319    checkpoint59h
320    o pkg/exf:
321      - improve vectorization by moving if-statement out of loops in
322        exf_mapfields, exf_radiation
323      - exf_bulkformulae.F: introduce 2D fields and vectorize code
324    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
325    o testreport:
326      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
327        monitor & update offline_exf_seaice exp. output.
328      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
329    o pkg/seaice:
330      - bug fix in the evp solver: boundary conditions were affected be
331        masking of zMax/zMin (changes results)
332      - minor bug fix in boundary conditions in seaice_calc_strainrates
333        (changes results for no_slip)
334      - seaice_lsr.F: make interpolation of eta dependent on boundaries
335      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
336      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
337        stress formulation and no-slip boundary conditions
338    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
339      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
340    o pkg/seaice: a first HSALT time stepping equation has been checked in
341    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
342      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
343      without requiring DO-IF statements
344    o pkg/thsice:
345      use continuous power-law function for partition of energy between lateral
346      melting/freezing and thinning/thickening ; old code using step function
347      still available with #undef THSICE_FRACEN_POWERLAW
348      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
349    o testreport: change AD testing : check against results/output_adm.txt
350      using same scripts as for forward test.
351    
352    checkpoint59g
353    o adjoint testing: in preparation for changing testreport:
354      - output format: cost and grad written on separated lines
355      - ad output results in directory "results" (instead of "results_ad")
356    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
357    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
358    o pkg/ecco: allow user defined cost function contributions
359    o testreport:
360      Allow to choose (per experiment) the list of tested output variables
361       and the main variable (used to issue a pass/FAIL ) ;
362      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
363      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
364      Also modify printing of summary:
365       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
366       b) echo the list of tested variables in the individual summary.txt of
367          each experiment.
368    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
369      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
370      (but still depend on the tile decompostion of the domain).
371    o pkg/seaice: change a discretization detail to make the B-grid code
372      "more symmetric". This change is likely to remove all "ridges/leads" that
373      where quasi-aligned with the grid in B-grid solutions. It may also be
374      the solution to the stress coupling issues with the B-grid.
375    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
376      remove .cvsignore from input dir. (since testreport no longer run here).
377    o pkg/thsice:
378     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
379     - fix reshaping of sea-ice just after advection:
380       melt all the ice only if ice-volume is too small.
381     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
382       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
383     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
384    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
385      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
386    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
387      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
388      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
389      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
390      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
391      -> update output.txt
392    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
393     this affects truncation error: -> update output.txt of exp:
394      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
395      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
396    
397    checkpoint59f
398    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
399    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
400      a bounded range (in forward mode)
401    o pkg/ecco, ctrl, autodiff and mom_common:
402     internal parameter controls, completements of implementations
403    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
404    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
405      (not seem any difference in testing results).
406    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
407       at face corners.
408    o pkg/generic_advdiff:
409     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
410      loop range indices for computing vertical advection tendency
411      and do the calculation in the interior only (no overlap) ;
412      for now, only implemented for SOM advection (to save CPU time).
413     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
414    o exch2 adjoint
415      First set of changes:
416      - add exch2 hand-written adjoint templates
417      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
418        This will require cleanup in pkg/autodiff/*.F
419        (changed routines currently kept separate in verif. code/)
420      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
421        that used to hide exch2 or cubed-sphere specific code
422        (commented via 'cph-exch2')
423    o pkg/seaice
424      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
425    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
426       output of global_ocean.cs32x15.thsice .
427    
428    checkpoint59e
429    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
430      for B-grid vector (not yet tested) and C-grid vector (<- only used
431      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
432    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
433      (#ifdef ALLOW_SALT_PLUME)
434    o gather_2d/scatter_2d: removed halo regions
435    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
436      scheme and the corresponding test case (under front_relax dir). For now,
437      only available with Skew-flux form and not yet tested in realistic set-up.
438      adjoint: store directives updated, but gradient checks deteriorated,
439      so maybe GM/Redi adjoint is now broken.
440    o seaice adjoint
441      * add AREA, HEFF, HSNOW as control variable
442        (should not change lab_sea results)
443      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
444    o pkg/seaice:
445      * added computation of saltFlux in seaice_growth;
446        For time being, sea ice salinity is assumed constant
447        contribution of snow flooding to freshening of sea ice is neglected.
448        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
449        defaults to 0.0 in order to maintain backward compatibility.
450        Typical values for SEAICE_salinity are 4 to 10 g/kg.
451      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
452      * added SEAICE_availHeatFrac, which specifies fraction of surface level
453        heat content used to melt or grow ice
454      * commented out cap of HICE: it helps keep ice thinner
455      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
456      * applied OBCS T/S mask to HEFFM sea ice mask
457    
458    checkpoint59d
459    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
460     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
461     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
462    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
463     and change default value of parameter "GM_Small_Number";
464     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
465       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
466       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
467    o pkg/ecco: cost function when applying pkg/smooth to controls
468    o pkg/ctrl: add forcingPrecond run time parameter
469    o pkg/seaice:
470     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
471     - fix bug in metric terms of u-equation in LSR solver (implicit part),
472       changes verification/lab_sea
473     - rearrange implicit part of u-equation in LSR solver to make it easier to
474       read, understand, and debug. This causes changes at the truncation level.
475     - fix (serious) bug in the boundary conditions (sign error in the implicit
476       part) of the LSR solver. Changes all LSR results.
477     - fixed problem with HSNOW initialization to avoid thick snow when AREA
478       is initilized with small values - does not change lab_sea results.
479     - added HsnowFile initialization capability
480    o pkg/smooth: addition to model/src and pkg/ctrl so allow
481     initialization of pkg/smooth and application to control vector
482    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
483    o dependencies: pkg/profiles requires pkg/cal
484    o pkg/profiles:
485     - added option ALLOW_PROFILES_GENERICGRID
486         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
487         that interpolation information (grid points and coefficients) is provided
488         within the netcdf input files.
489         -> sample matlab scripts can be found in MITgcm_contrib/gael
490         that allow you to prepare netcdf input files.
491     - also modified: cleaner include statements, cleaner error print statements,
492       cleaner stops when error, and more tests of the netcdf input files consistency.
493    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
494    o pkg/seaice:
495     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
496       requires a new routine: seaice_diagnostics_fill.F
497     - make sure that seaice does not move if not forced (pressure replacement
498       method, Hibler and Ip, 1995), changes results
499     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
500     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
501       It is turned off by default (=-1.), because it changes the results.
502     - make it possible to read AREA from a file, too.
503    
504    checkpoint59c
505    o add S/R and diagnostics for oceanic mixed-layer depth
506    o move GMRedi call after all vertical mixing schemes (including KPP)
507    o pkg/thsice:
508     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
509      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
510    o pkg/obcs:
511     - bug fix for balance code
512    o pkg/seaice:
513      - allow values of SEAICE_elasticParm > 1
514      - add new parameter SEAICE_evpTauRelax as an alternative
515        to SEAICE_elasticParm
516      - make lsr boundary conditions free slip (by default), changes result
517      - add code for no slip boundary conditions for lsr
518      - set minimum of zeta to zero (and not 4e8) (changes results)
519      - add a cap on AREA after advecting AREA if seaice_growth is not called
520    o change calculation of Visbeck K:
521      - no longer depend on tapering scheme; instead, compute slope (limited
522        by GM_maxSlope). this is equivalent to what was comuted before with
523        clipping or linear tappering.
524      - fix vertical averaging (wrong by 1/2 level)
525      - leave the old version (but will not be maintained) within
526        #ifdef OLD_VISBECK_CALC / #endif
527      - update output of exp. ideal_2D_oce
528    o change error catch in calc_r_star to improve vectorization
529    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
530      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
531    o adjoint:
532      Re-organized adjoint checkpointing according to Matt Mazloff
533      (but with modifs/completions/cleanups)
534      Storing is now bundled into large arrays to optimized I/O
535      (and second step in cleanup of the_main_loop)
536    
537    checkpoint59b
538    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
539      - export/import (between ocean & coupler) fields needed for ocean DIC.
540    o pkg/seaice:
541      - get rid of three more exchanges seaice_calc_viscosities (required
542        different loop boundaries in seaice_lsr and seaice_ocean_stress)
543      - bug fix in seaice_ocean_stress (update of lab_sea required)
544      - reduce loop boundaries to necessary minimum also in seaice_evp
545      - go back to the old way of computing deltaC/Z as the adjoint likes that
546        better
547    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
548      passive tracer to an Age Tracer) + update output.txt
549    o pkg/exf:
550      - implement A-grid / C-grid selection for wind-stress input files.
551      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
552      for now, in exf_bulk_largeyeager04.F only :
553      - change implementation for case where windspeed + 2. components wind-stress
554        are read-in. AND use rhoConstFresh to convert evap.
555    o pkg/seaice:
556      - use correct EXCH_UV for wind-forcing (on A-grid).
557      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
558        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
559    o pkg/exf:
560      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
561      EXF_INTERPOLATION:
562      - merge global_with_exf/code version of exf_interp_read.F
563        to the main code ;
564      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
565        reading the file ; Important: This options needs to be defined to recover
566        previous code.
567        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
568      - no longer loose real*8 precision along the way when using exf_iprec=64.
569    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
570      - change discretisation of evp-solver in order to avoid another exchange
571        (changes lab_sea) and clean up a little
572      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
573        help the adjoint (this also changes the results slightly)
574      - add a few "_d 0" where they had been missing in seaice_evp.F
575      - cleaning up: remove unused seaice_calc_rhs.F
576    o pkg/exf: some cleaning-up:
577      - change various "constants" into runtime parameters
578      - cleaned-up Large&Yeager04 routine which should eventually
579        replace exf_bulkformulae.F (changed names of S/R and CPP)
580        and merged various ALLOW_ATM_WIND options
581     only used with thsice pkg (in thsice_get_exf.F):
582      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
583        which are used when useStabilityFct_overIce=TRUE (= the default)
584      - change default values of ice & snow emissivity and scale downward LW
585        by ice & snow emissivity.
586    o pkg/thsice:
587     fix few little problems, in thsice_calc_thickn.F:
588      - growth vertically (and not laterally) if iceFrac == iceMaskMax
589      - melt only laterally if hIce < hThinIce (as the comments say)
590      and in thsice_extend.F:
591      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
592      - start to form ice as soon as the minimum ice-volume is reachable.
593     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
594      and cpl_aim+ocn
595    o pkg/kpp
596     - move computation of surface related input fields to KPP into a new
597       subroutine kpp_forcing_surf.F
598     - remove wrong (within bi,bj loops) EXCH calls.
599     - little cleaning (add argument myThid in last position, cvs header ...)
600     - for now, fix conservation problem by exchanging KPPviscAz (may not
601       be the best fix)
602    o pkg/seaice
603     - check for inconsistent evp parameter/cpp-flag combination
604     - remove leftover errIO flat for obsolete name list error handling
605    o OpenAD
606     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
607    
608    checkpoint59a
609    o pkg/seaice: some parameter clarifications and a little bit of clean up
610    o pkg/thsice: rename run-time parameters:
611       himin       -> hIceMin
612       himin0      -> hThinIce
613       hihig       -> hThickIce
614       i0          -> i0swFrac
615       transCoef   -> bMeltCoef
616       frac_energy -> fracMelting
617      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
618       with default values (for now) that do not change the results.
619      remove old version of thsice vars advection in pkg/seaice.
620    o in FFIELDS.h:
621      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
622      - make pLoad & sIceLoad always available (but still only used if
623         ATMOSPHERIC_LOADING is #define).
624    o pkg/kpp: replaced _KPP_RL with _RL
625    o bug fixes for vertical diffusivity computations when both KPP and
626        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
627        are no longer updating the vertical diffusivity array
628        (passed as argument) but are (re-) setting those arrays.
629    o pkg/seaice: fix bug in evp solver, while doing that
630      - change (improve?) discretization of stress computations for both
631        cgrid-lsr and evp solver
632      - add a new routine to compute strain rates
633      - the above changes lab_sea results
634      - add no slip conditions for evp solver (off by default), lsr-version
635        may follow
636      - fix exchange for shear at Z-points (does not change lab_sea)
637      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
638        (to force the user to pick a time step since there is not "safe" way
639        of choosing it)
640      - add principal stress diagnostics
641      - rearrange fields for evp a little to avoid having to call a: too many
642        exchanges and b: exchanges for stress trensor components which we do
643        not have.
644      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
645        of evp, complete rewrite for lsr case (latter is does not yet work
646        in all cases)
647    o pkg/kpp: add code to have mixing in shelf ice caverns
648      - add myThid to all kpp routines (long overdue)
649    
650    checkpoint59
651    o pkg/exf:
652      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
653        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
654      - move exf header files from lower_case.h to UPPER_CASE.h ;
655        add missing cvs Header & Name
656      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
657      - add namelist param. selectStressGridPosition, exf_monFreq
658      - retire many _CLIM routines, and remove data.exf_clim
659        + params moved to data.exf
660        + climsst, climsss now handled by exf_set_gen, i.e.
661          climss?period=0 refers to constant field,
662          climss?period=-12 to monthly forcing
663      - split up namelists in data.exf
664    o pkg/seaice:
665      - remove seaice_exch and seaice_exch_uv
666      - remove superfluous exchange of theta
667      - add myThid to seaice_budget_ocean/ice
668      - add new interface for atmospheric wind forcing (C-grid only)
669        + new routine
670        + two new field (taux, tauy for stress over ice)
671        + removed one global field (DAIRN) for C-grid case only
672    o pkg/thsise
673      - 2nd set of modifs for thsice adjoint in conjunction with exf
674    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
675    
676    checkpoint58y_post
677    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
678      vertical diffusivity, similar to that in MOM4; turned on using
679      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
680      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
681    o Added capability for 3D specification of background vertical diffusion
682      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
683      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
684      "data" file that contains the 3D vertical diffusivity coefficients.
685    o ice dynamics (pkg/seaice) with thsice thermodynamics:
686      - add code within pkg thsice to advect & diffuse sea-ice fields
687      similar to (and will replace) what has been added in  seaice_advdiff.F,
688      but: - conserving Mass, Heat & Salt.
689           - better when using non-linear advection scheme (not yet fully tested)
690           - can also be used in atmospheric set-up (for now, only the diffusion).
691    
692    checkpoint58x_post
693    o IO option for global-file compact format:
694      - add options when generating topology (utils/exch2/matlab-topology-generator)
695      - add I/O capability (pkg/mdsio).
696      - adapt utils/matlab/rdmds.m to read this format.
697      for now long-line format not yet supported by pkg/mdsio (& exch2).
698    o shelfice: add a few diagnostics
699    
700    checkpoint58w_post
701    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
702      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
703      (and replace horiVertRatio in NH code).
704      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
705                         and tutorial_plume_on_slope (sensitive to truncation)
706    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
707      directly to drive seaice model (C-grid only)
708    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
709     - reintroduce computation of wind from stress,
710     - compute tau (in exf_bulkformulae.F) from windstress averaged to
711       mass points to avoid tau = 0
712     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
713    o rdmnc.m: make it work with "global" files created with gluemnc
714    o rdmnc.m : some improvements in dealing with singleton dimension
715      (tested on all testreport mnc output files).
716    o genmake2: disable pkg/profiles if netcdf test fails.
717    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
718    o move call to cal_readparms up to make calendar parameters/variable available
719      to all packages
720    
721    checkpoint58v_post
722    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
723      useDynP_inEos_Zc tested.
724    o pkg/exf: changes to properly interpolate/mask/scale initial fields
725    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
726      and portions thereof.  See read_cs.txt for description and examples.
727    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
728      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
729      following the great-circle arc between those 2 points.
730    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
731      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
732    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
733     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
734     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
735     - still needs work (not working with some options ; efficiency to improve)
736       and serious testing.
737     - use this scheme for temperature & salinity in 2 advection test exp.:
738       advect_xy & advect_xz, respectively.
739    
740    checkpoint58u_post
741    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
742    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
743    o testreport: add option "-skipdir" to skip some test.
744    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
745      momentum calculation.
746    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
747    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
748      remove checkpoint.F and the_correction_step.F (no longer used);
749      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
750    o add option (linFSConserveTr) to correct for tracer source/sink due to
751      Linear Free surface
752    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
753    o pkg/thsice: fix reading mnc-pickups
754    
755    checkpoint58t_post
756    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
757    o pkg/mdsio:
758     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
759       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
760       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
761     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
762     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
763       either MDS_READ_FIELD or MDS_WRITE_FIELD )
764     - new S/R (to replace MDSWRITEMETA), which allows to write more
765       informations (variable names, time ...) to meta files.
766     - modify rdmds.m to give back the meta file content.
767  o pkg/diagnostics: change vertical interpolation to be safer, and more  o pkg/diagnostics: change vertical interpolation to be safer, and more
768     flexible (define p-levels to interpolate to in data.diagnostics);     flexible (define p-levels to interpolate to in data.diagnostics);
769    add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right    add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
770     diagnostic pointer.     diagnostic pointer.
771  o pkg/seaice: more cleaning up of seaice_growth, added many comments  o pkg/seaice: more cleaning up of seaice_growth, added many comments
772  o pkg/exf: put runoff0 and runoff into the appropriate common block  o pkg/exf: put runoff0 and runoff1 into the appropriate common block
773  o fix multi-category seaice:  o fix multi-category seaice:
774   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:   - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
775     SEAICE_MULTICATEGORY     SEAICE_MULTICATEGORY

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