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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.993 by mlosch, Thu May 22 08:36:53 2008 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
8      mass points, when using mnc for output
9      - add runtime parameter (missing_value, missing_value_int) to override
10        default (which is the value of getcon('UNDEF'))
11    o pkg/mnc: prepare mnc for the actual use of missing values with the
12      diagnostics package: small fix in mnc_cw_readwrite.template and more
13      initialisation of never used fields
14    o pkg/thsice/thsice_ini_vars.F added default initial values so that thermodynamics
15      sea ice solver does not blow up when some initial fields are missing.
16    o move from external_forcing_surf.F to ini_forcing.F
17      the p-coord. hack consisting in using pLoad to set phi0surf ;
18      update output of tutorial_global_oce_in_p (affected @ truncation level).
19    o Freshen up a bit hs94.1x64x5, notably:
20      remove rotationPeriod and tRef=5*0. (adjoint only), and add exactConserv=.TRUE.
21    o pkg/generic_advdiff:
22      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
23      applies to files where Temperature & Salinity 2nd Order moments are used.
24    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
25      this uses a dynamically allocated internal state data structure
26      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
27      and requires a fortran 90 compiler
28    
29    checkpoint59q
30    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
31       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
32    o Refresh tutorial_global_oce_biogeo, notably:
33      - change bathymetry (put back seamounts in ACC, use hFacs)
34      - change EOS (POLY3 --> JMD95Z)
35      - use Bryan-Lewis vertical diffusivity
36      - use multidimensional advection
37      - remove old virtual virtual in dic pkg, now done through ptracer pkg
38      - change a couple of parameters in dic pkg
39    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
40    o pkg/obcs: change default to OBCSfixTopo = .true.,
41      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
42      - replace "debugMode" with "debugLevel .GE. debLevB"
43    o implementation of TAF directives for gchem,cfc,dic
44    o remove "exp5" (replaced by tutorial_deep_convection).
45    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
46      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
47      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
48      --> changes results in exp4, seaice_obcs
49    o tutorial_deep_convection :
50      update the set-up and increase resolution and domain size ; start
51      from pseudo initial conditions = output at t=120mn in order to see
52      something happening when running testreport.
53    o pkg/seaice: add os7mp as an advection scheme
54                  add check for advection schemes
55                  add a flag for restoring T and S underneath sea ice
56    o pkg/my82: add netcdf-support and diagnostics
57    o thsice pkg:
58      - Now hsMax limits snow height by turning it into ice following
59        flooding scheme (and now conserving energy)
60      - Slight rewriting of the formula in thsice_calc_thick.F
61      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
62      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
63    
64    checkpoint59p
65    o gchem / dic / cfc :
66      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
67      - add new parameter files: "data.dic" & "data.cfc" ;
68      - various re-arrangement in initialisation & header file ;
69      - fix tutorial_global_oce_biogeo for multi-threaded test.
70    o pkg/dic: test for "pickup_dic" file when restarting ;
71      if no pickup-file, can restart with a re-initialised pH (same as it did
72      before) providing pickupStrictlyMatch is set to False.
73    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
74      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
75    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
76      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
77    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
78     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
79       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
80    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
81       scheme to use for vorticty-term ;
82     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
83       (with default selectVortScheme, return to original discretisation)
84     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
85    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
86    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
87      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
88      also fix diagnostics VISCAHW & VISCA4W.
89    
90    checkpoint59o
91    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
92    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
93      move a few statemens out the main loop into separate loops
94    o pkg/shelfice:
95      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
96        (kg/m^2/s), does not break tests, because in verification/isomip,
97        rhoConstFresh=rhoConst (by accident)
98      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
99      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
100        new file model/src/seawater.F, so that they are available for all pkgs.
101      - convert potential temperature into in-situ temperature. This changes the
102        isomip tests => update tests
103    o add a flag writePickupAtEnd (default=true) to be able to suppress
104      writing a pickup at the last timestep
105    o tools/mpack-1.6 :
106      - disable automake (not working) and autoconf (not needed).
107      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
108        also cleaner with much less compilation warnings.
109    o pkg/profiles:
110      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
111      (for "less than 32 characters name" compiler requirement)
112    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
113      conditions that have a different sampling frequency than S/T/U/V obcs
114    o pkg/diagnostics (stats-diags):
115      - fix global Min/Max in case 1 processor get only empty tiles
116    o genmake2: replace (4 times)
117         make genmake_tc_1.o >> genmake_warnings 2>&1
118      with
119         COMM="$CC $CFLAGS -c genmake_tc_1.c"
120         echo $COMM >> genmake_warnings
121         $COMM >> genmake_warnings 2>&1
122      to make genmake2 always see the value of CC as specified in the optfile.
123    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
124      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
125      - modify verification advect_cs test to test SOM-advection on CS-grid.
126    o pkg/ctrl:
127      - Rewrite of ctrl_map_ini_ecco.F,
128        introducing a generic routine (ctrl_map_ini_gen.F).
129      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
130    
131    checkpoint59n
132    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
133      number in dedicate array "hdiag":
134      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
135        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
136      - many small changes (integer format) for large number of diagnostics
137      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
138        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
139    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
140      usingSphericalGrid, this allows to define the rotated grid coordinates
141      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
142      geographical coordinates according to the inverse of the rotation defined
143      by the Euler angles, so that Coriolis parameter and online-interpolation by
144      exf works with the geographical coordinates on XC/YC/XG/YG.
145      Naturally, this feature does not work with all packages, so some
146      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
147      profiles), because there the coordinates are assumed to be regular
148      spherical grid coordinates.
149    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
150      - introduce isopycnal diffusion coefficient control.
151    o tools/adjoint_options:
152      - additional control vector components.
153    o pkg/mnc: have mnc create marginally meaning full coordinate variables
154      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
155    o pkg/mypackage:
156      - add example of read/write pickup for state-var ;
157      - add entry points to the main code for state-vars diags & write-pickup.
158    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
159      transitions for useExfYearlyFields
160      - add new subroutine that determines the file to read from for
161        use*YearlyFields = .TRUE. and .FALSE.
162      - add a verification experiment to global_with_exf that tests
163        useExfYearlyFields with USE_EXF_INTERPOLATION defined
164    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
165      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
166      subroutines (which could be generated from a template, because they are
167      almost identical), for now they are included in obcs_prescribe_read.F for
168      simplicity
169    o pkg/exf:
170      - add a little more diagnostic to exf_interp_read (in analogy to
171        mds_read_field, can be turned off with debugLevel < debugLevA=1)
172      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
173        ugly but fast by unrolling short inner loops, inserting a unroll=8
174        directive in routine lagran, and splitting a loop and making do while the
175        outermost loop (the latter requires the intoduction of index arrays)
176    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
177    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
178      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
179    o verification/seaice_obcs: updated for restart test and latest options
180    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
181      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
182      for now this is only available for the C-grid code and also within
183      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
184    
185    checkpoint59m
186    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
187      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
188    o gad_som : fix flux output (& diagnostics) to have same units as other  
189      advection scheme fluxes (was previously multiplied by deltaT).  
190    o added verification/seaice_obcs both to test seaice open boundaries
191      and to provide an example matlab scrpt for generating them
192    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
193    o pkg/salt_plume: clean up salt_plume_frac.F to
194      remove redundancy in PlumeMethod 1 and 4
195    o pkg/kpp: added saltplume diagnostics
196    o pkg/obcs and pkg/seaice:
197      - do not set uice and vice to zero when OB*icefile are unspecified
198      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
199      - moved seaice tracer obcs after call to seaice_growth
200    o pkg/salt_plume: added various options for salt plume depth
201      criterion and for vertical distribution of the salt
202    
203    checkpoint59l
204    o pkg/ptracers: new version of ptracers pickup:
205      read meta file and write only fields which are needed to restart.
206      ( same logic as main pickup file ; also using pickupStrictlyMatch )
207    o pkg/seaice:
208      - add timescale for melting due to warm mixed layer as a means of
209        setting SEAICE_availHeatFrac more conveniently
210      - add a CPP-flag/runtime parameter check for flooding algorithm
211      - reformulated availHeat in seaice_growth.F to be independent of AREA
212    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
213      unit changes
214    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
215    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
216      SX vector computer.
217    o pkg/seaice:
218      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
219        seaice forcing fields can now be read only through pkg/exf
220      - removed some unused halos
221    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
222    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
223      or U/VICE from U/VWIND before computing U/VSTRESS
224    
225    checkpoint59k
226    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
227      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
228    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
229      all experiments pass when compile with un-initialised var. checking option.
230    o added pkg/salt_plume
231    o script to test restart (for now, in MITgcm_contrib/jmc_script)
232    o pkg/seaice: new read/write pickup version.
233      read meta file and write only fields which are needed to restart.
234      ( same logic as main pickup file ; also using pickupStrictlyMatch )
235    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
236    o lab_sea.hb87: modify the domain & update output.hb87.txt :
237      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
238      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
239      process. Fixed here by closing the domain at the Northern boundary.
240    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
241    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
242      a set of consecutive levels in/from a 3-D array.
243    o pkg/ptracers:
244      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
245      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
246    
247    checkpoint59j
248    o in pkgs: dic, obcs, offline, rbcs:
249      standard way to compute coeff. for time interpolation between 2 time reccords
250      which retains full precision (& make results less dependent on compiler).
251      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
252    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
253      packages instead of reading ice cover and wind speed separately
254    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
255     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
256      to allow to compile customized code before the update)
257    o cleaning-up:
258      - fix CPP instruction syntax in pkg/obcs
259      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
260        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
261      - fix some threads issue in IO parts.
262    o pkg/dic:
263      - add tons of "_d 0" (--> much better testreports !)
264       and then update outputs of tutorial_global_oce_biogeo
265    o pkg/mom_fluxform:
266      add a special version of momentum advection intended to conserve momentum
267      next to a bathymetry step or a coastline edge. (default = off = #undef)
268    o new read/write pickup version:
269      - for now, only implemented for main (mdsio) pickup file.
270      - write out only what is needed to restart; merge pickup_nh , pickup_ph
271        and main pickup together.
272      - read meta file; read only what is needed to restart; stop if a field
273        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
274        if it make sense (even if the restart is not perfect).
275      - if no meta file, assume that pickup to read corresponds exactly to
276        a pickup that would currently be written.
277      - read pickup written in the old format (until checkpoint59i) if it
278        recognizes an old meta file (no field-list).
279      - add a meta file in exp. which starts from a pickup: 2 cases:
280        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
281         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
282        b) a meta file describing the content of the associated pickup file
283         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
284    o pkg/mdsio & pkg/rw:
285      - new routine to read a meta file ; new set of routine to read
286        Multiple-fields file (with meta file).
287    o added open boundary conditions capability for seaice
288        HSNOW, HSALT, UICE, and VICE
289    
290    checkpoint59i
291    o adjoint:
292      * fix multiDimAdvection adjoint
293        (partial recomputation problem by TAF for fVerT(:,:,kDown)
294        and comlev1 size definition (maxpass vs. max. number of tracers)
295      * verification/global_ocean.90x45x15 adjoint now tests
296        NLFS and multiDimAdvection using DST3 (=30)
297      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
298    o pkg/kpp: add "_d 0" to real constant (if missing);
299      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
300      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
301    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
302      for internal parameters related to restart process (formerly from PARAMS.h)
303      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
304    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
305      as argument. (only atm2d & obcs write_pickup have not yet been updated)
306    o pkg/monitor:
307      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
308      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
309      - account for deep Atmosphere factor and density factor (anelastic)
310    o added open boundary conditions capability for seaice HEFF and AREA
311    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
312      thermodynamics
313      - requires a little reorganization, which affects the testreport results
314        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
315        so that now the conservative form is tested
316      - add a few comments
317    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
318    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
319    o add new diagnostics to seaice: advective, diffusive fluxes (only for
320      multidim-advection, for scheme 2 they are not filled) and transports,
321      thermodynamic growth rates
322    o change units of EmPmR (inside the code, + within coupling interface)
323      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
324      Affects results @ truncation level (cg2d match) and update output of
325       experiments: lab_sea(6), global_ocean.90x40x15(10),
326      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
327      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
328      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
329      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
330    
331    checkpoint59h
332    o pkg/exf:
333      - improve vectorization by moving if-statement out of loops in
334        exf_mapfields, exf_radiation
335      - exf_bulkformulae.F: introduce 2D fields and vectorize code
336    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
337    o testreport:
338      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
339        monitor & update offline_exf_seaice exp. output.
340      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
341    o pkg/seaice:
342      - bug fix in the evp solver: boundary conditions were affected be
343        masking of zMax/zMin (changes results)
344      - minor bug fix in boundary conditions in seaice_calc_strainrates
345        (changes results for no_slip)
346      - seaice_lsr.F: make interpolation of eta dependent on boundaries
347      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
348      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
349        stress formulation and no-slip boundary conditions
350    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
351      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
352    o pkg/seaice: a first HSALT time stepping equation has been checked in
353    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
354      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
355      without requiring DO-IF statements
356    o pkg/thsice:
357      use continuous power-law function for partition of energy between lateral
358      melting/freezing and thinning/thickening ; old code using step function
359      still available with #undef THSICE_FRACEN_POWERLAW
360      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
361    o testreport: change AD testing : check against results/output_adm.txt
362      using same scripts as for forward test.
363    
364    checkpoint59g
365    o adjoint testing: in preparation for changing testreport:
366      - output format: cost and grad written on separated lines
367      - ad output results in directory "results" (instead of "results_ad")
368    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
369    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
370    o pkg/ecco: allow user defined cost function contributions
371    o testreport:
372      Allow to choose (per experiment) the list of tested output variables
373       and the main variable (used to issue a pass/FAIL ) ;
374      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
375      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
376      Also modify printing of summary:
377       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
378       b) echo the list of tested variables in the individual summary.txt of
379          each experiment.
380    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
381      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
382      (but still depend on the tile decompostion of the domain).
383    o pkg/seaice: change a discretization detail to make the B-grid code
384      "more symmetric". This change is likely to remove all "ridges/leads" that
385      where quasi-aligned with the grid in B-grid solutions. It may also be
386      the solution to the stress coupling issues with the B-grid.
387    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
388      remove .cvsignore from input dir. (since testreport no longer run here).
389    o pkg/thsice:
390     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
391     - fix reshaping of sea-ice just after advection:
392       melt all the ice only if ice-volume is too small.
393     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
394       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
395     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
396    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
397      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
398    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
399      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
400      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
401      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
402      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
403      -> update output.txt
404    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
405     this affects truncation error: -> update output.txt of exp:
406      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
407      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
408    
409    checkpoint59f
410    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
411    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
412      a bounded range (in forward mode)
413    o pkg/ecco, ctrl, autodiff and mom_common:
414     internal parameter controls, completements of implementations
415    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
416    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
417      (not seem any difference in testing results).
418    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
419       at face corners.
420    o pkg/generic_advdiff:
421     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
422      loop range indices for computing vertical advection tendency
423      and do the calculation in the interior only (no overlap) ;
424      for now, only implemented for SOM advection (to save CPU time).
425     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
426    o exch2 adjoint
427      First set of changes:
428      - add exch2 hand-written adjoint templates
429      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
430        This will require cleanup in pkg/autodiff/*.F
431        (changed routines currently kept separate in verif. code/)
432      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
433        that used to hide exch2 or cubed-sphere specific code
434        (commented via 'cph-exch2')
435    o pkg/seaice
436      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
437    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
438       output of global_ocean.cs32x15.thsice .
439    
440    checkpoint59e
441    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
442      for B-grid vector (not yet tested) and C-grid vector (<- only used
443      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
444    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
445      (#ifdef ALLOW_SALT_PLUME)
446    o gather_2d/scatter_2d: removed halo regions
447    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
448      scheme and the corresponding test case (under front_relax dir). For now,
449      only available with Skew-flux form and not yet tested in realistic set-up.
450      adjoint: store directives updated, but gradient checks deteriorated,
451      so maybe GM/Redi adjoint is now broken.
452    o seaice adjoint
453      * add AREA, HEFF, HSNOW as control variable
454        (should not change lab_sea results)
455      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
456    o pkg/seaice:
457      * added computation of saltFlux in seaice_growth;
458        For time being, sea ice salinity is assumed constant
459        contribution of snow flooding to freshening of sea ice is neglected.
460        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
461        defaults to 0.0 in order to maintain backward compatibility.
462        Typical values for SEAICE_salinity are 4 to 10 g/kg.
463      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
464      * added SEAICE_availHeatFrac, which specifies fraction of surface level
465        heat content used to melt or grow ice
466      * commented out cap of HICE: it helps keep ice thinner
467      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
468      * applied OBCS T/S mask to HEFFM sea ice mask
469    
470    checkpoint59d
471    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
472     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
473     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
474    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
475     and change default value of parameter "GM_Small_Number";
476     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
477       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
478       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
479    o pkg/ecco: cost function when applying pkg/smooth to controls
480    o pkg/ctrl: add forcingPrecond run time parameter
481    o pkg/seaice:
482     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
483     - fix bug in metric terms of u-equation in LSR solver (implicit part),
484       changes verification/lab_sea
485     - rearrange implicit part of u-equation in LSR solver to make it easier to
486       read, understand, and debug. This causes changes at the truncation level.
487     - fix (serious) bug in the boundary conditions (sign error in the implicit
488       part) of the LSR solver. Changes all LSR results.
489     - fixed problem with HSNOW initialization to avoid thick snow when AREA
490       is initilized with small values - does not change lab_sea results.
491     - added HsnowFile initialization capability
492    o pkg/smooth: addition to model/src and pkg/ctrl so allow
493     initialization of pkg/smooth and application to control vector
494    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
495    o dependencies: pkg/profiles requires pkg/cal
496    o pkg/profiles:
497     - added option ALLOW_PROFILES_GENERICGRID
498         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
499         that interpolation information (grid points and coefficients) is provided
500         within the netcdf input files.
501         -> sample matlab scripts can be found in MITgcm_contrib/gael
502         that allow you to prepare netcdf input files.
503     - also modified: cleaner include statements, cleaner error print statements,
504       cleaner stops when error, and more tests of the netcdf input files consistency.
505    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
506    o pkg/seaice:
507     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
508       requires a new routine: seaice_diagnostics_fill.F
509     - make sure that seaice does not move if not forced (pressure replacement
510       method, Hibler and Ip, 1995), changes results
511     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
512     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
513       It is turned off by default (=-1.), because it changes the results.
514     - make it possible to read AREA from a file, too.
515    
516    checkpoint59c
517    o add S/R and diagnostics for oceanic mixed-layer depth
518    o move GMRedi call after all vertical mixing schemes (including KPP)
519    o pkg/thsice:
520     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
521      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
522    o pkg/obcs:
523     - bug fix for balance code
524    o pkg/seaice:
525      - allow values of SEAICE_elasticParm > 1
526      - add new parameter SEAICE_evpTauRelax as an alternative
527        to SEAICE_elasticParm
528      - make lsr boundary conditions free slip (by default), changes result
529      - add code for no slip boundary conditions for lsr
530      - set minimum of zeta to zero (and not 4e8) (changes results)
531      - add a cap on AREA after advecting AREA if seaice_growth is not called
532    o change calculation of Visbeck K:
533      - no longer depend on tapering scheme; instead, compute slope (limited
534        by GM_maxSlope). this is equivalent to what was comuted before with
535        clipping or linear tappering.
536      - fix vertical averaging (wrong by 1/2 level)
537      - leave the old version (but will not be maintained) within
538        #ifdef OLD_VISBECK_CALC / #endif
539      - update output of exp. ideal_2D_oce
540    o change error catch in calc_r_star to improve vectorization
541    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
542      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
543    o adjoint:
544      Re-organized adjoint checkpointing according to Matt Mazloff
545      (but with modifs/completions/cleanups)
546      Storing is now bundled into large arrays to optimized I/O
547      (and second step in cleanup of the_main_loop)
548    
549    checkpoint59b
550    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
551      - export/import (between ocean & coupler) fields needed for ocean DIC.
552    o pkg/seaice:
553      - get rid of three more exchanges seaice_calc_viscosities (required
554        different loop boundaries in seaice_lsr and seaice_ocean_stress)
555      - bug fix in seaice_ocean_stress (update of lab_sea required)
556      - reduce loop boundaries to necessary minimum also in seaice_evp
557      - go back to the old way of computing deltaC/Z as the adjoint likes that
558        better
559    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
560      passive tracer to an Age Tracer) + update output.txt
561    o pkg/exf:
562      - implement A-grid / C-grid selection for wind-stress input files.
563      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
564      for now, in exf_bulk_largeyeager04.F only :
565      - change implementation for case where windspeed + 2. components wind-stress
566        are read-in. AND use rhoConstFresh to convert evap.
567    o pkg/seaice:
568      - use correct EXCH_UV for wind-forcing (on A-grid).
569      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
570        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
571    o pkg/exf:
572      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
573      EXF_INTERPOLATION:
574      - merge global_with_exf/code version of exf_interp_read.F
575        to the main code ;
576      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
577        reading the file ; Important: This options needs to be defined to recover
578        previous code.
579        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
580      - no longer loose real*8 precision along the way when using exf_iprec=64.
581    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
582      - change discretisation of evp-solver in order to avoid another exchange
583        (changes lab_sea) and clean up a little
584      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
585        help the adjoint (this also changes the results slightly)
586      - add a few "_d 0" where they had been missing in seaice_evp.F
587      - cleaning up: remove unused seaice_calc_rhs.F
588    o pkg/exf: some cleaning-up:
589      - change various "constants" into runtime parameters
590      - cleaned-up Large&Yeager04 routine which should eventually
591        replace exf_bulkformulae.F (changed names of S/R and CPP)
592        and merged various ALLOW_ATM_WIND options
593     only used with thsice pkg (in thsice_get_exf.F):
594      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
595        which are used when useStabilityFct_overIce=TRUE (= the default)
596      - change default values of ice & snow emissivity and scale downward LW
597        by ice & snow emissivity.
598    o pkg/thsice:
599     fix few little problems, in thsice_calc_thickn.F:
600      - growth vertically (and not laterally) if iceFrac == iceMaskMax
601      - melt only laterally if hIce < hThinIce (as the comments say)
602      and in thsice_extend.F:
603      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
604      - start to form ice as soon as the minimum ice-volume is reachable.
605     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
606      and cpl_aim+ocn
607    o pkg/kpp
608     - move computation of surface related input fields to KPP into a new
609       subroutine kpp_forcing_surf.F
610     - remove wrong (within bi,bj loops) EXCH calls.
611     - little cleaning (add argument myThid in last position, cvs header ...)
612     - for now, fix conservation problem by exchanging KPPviscAz (may not
613       be the best fix)
614    o pkg/seaice
615     - check for inconsistent evp parameter/cpp-flag combination
616     - remove leftover errIO flat for obsolete name list error handling
617    o OpenAD
618     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
619    
620    checkpoint59a
621    o pkg/seaice: some parameter clarifications and a little bit of clean up
622    o pkg/thsice: rename run-time parameters:
623       himin       -> hIceMin
624       himin0      -> hThinIce
625       hihig       -> hThickIce
626       i0          -> i0swFrac
627       transCoef   -> bMeltCoef
628       frac_energy -> fracMelting
629      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
630       with default values (for now) that do not change the results.
631      remove old version of thsice vars advection in pkg/seaice.
632    o in FFIELDS.h:
633      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
634      - make pLoad & sIceLoad always available (but still only used if
635         ATMOSPHERIC_LOADING is #define).
636    o pkg/kpp: replaced _KPP_RL with _RL
637    o bug fixes for vertical diffusivity computations when both KPP and
638        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
639        are no longer updating the vertical diffusivity array
640        (passed as argument) but are (re-) setting those arrays.
641    o pkg/seaice: fix bug in evp solver, while doing that
642      - change (improve?) discretization of stress computations for both
643        cgrid-lsr and evp solver
644      - add a new routine to compute strain rates
645      - the above changes lab_sea results
646      - add no slip conditions for evp solver (off by default), lsr-version
647        may follow
648      - fix exchange for shear at Z-points (does not change lab_sea)
649      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
650        (to force the user to pick a time step since there is not "safe" way
651        of choosing it)
652      - add principal stress diagnostics
653      - rearrange fields for evp a little to avoid having to call a: too many
654        exchanges and b: exchanges for stress trensor components which we do
655        not have.
656      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
657        of evp, complete rewrite for lsr case (latter is does not yet work
658        in all cases)
659    o pkg/kpp: add code to have mixing in shelf ice caverns
660      - add myThid to all kpp routines (long overdue)
661    
662    checkpoint59
663    o pkg/exf:
664      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
665        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
666      - move exf header files from lower_case.h to UPPER_CASE.h ;
667        add missing cvs Header & Name
668      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
669      - add namelist param. selectStressGridPosition, exf_monFreq
670      - retire many _CLIM routines, and remove data.exf_clim
671        + params moved to data.exf
672        + climsst, climsss now handled by exf_set_gen, i.e.
673          climss?period=0 refers to constant field,
674          climss?period=-12 to monthly forcing
675      - split up namelists in data.exf
676    o pkg/seaice:
677      - remove seaice_exch and seaice_exch_uv
678      - remove superfluous exchange of theta
679      - add myThid to seaice_budget_ocean/ice
680      - add new interface for atmospheric wind forcing (C-grid only)
681        + new routine
682        + two new field (taux, tauy for stress over ice)
683        + removed one global field (DAIRN) for C-grid case only
684    o pkg/thsise
685      - 2nd set of modifs for thsice adjoint in conjunction with exf
686    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
687    
688    checkpoint58y_post
689    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
690      vertical diffusivity, similar to that in MOM4; turned on using
691      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
692      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
693    o Added capability for 3D specification of background vertical diffusion
694      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
695      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
696      "data" file that contains the 3D vertical diffusivity coefficients.
697    o ice dynamics (pkg/seaice) with thsice thermodynamics:
698      - add code within pkg thsice to advect & diffuse sea-ice fields
699      similar to (and will replace) what has been added in  seaice_advdiff.F,
700      but: - conserving Mass, Heat & Salt.
701           - better when using non-linear advection scheme (not yet fully tested)
702           - can also be used in atmospheric set-up (for now, only the diffusion).
703    
704    checkpoint58x_post
705    o IO option for global-file compact format:
706      - add options when generating topology (utils/exch2/matlab-topology-generator)
707      - add I/O capability (pkg/mdsio).
708      - adapt utils/matlab/rdmds.m to read this format.
709      for now long-line format not yet supported by pkg/mdsio (& exch2).
710    o shelfice: add a few diagnostics
711    
712    checkpoint58w_post
713    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
714      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
715      (and replace horiVertRatio in NH code).
716      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
717                         and tutorial_plume_on_slope (sensitive to truncation)
718    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
719      directly to drive seaice model (C-grid only)
720    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
721     - reintroduce computation of wind from stress,
722     - compute tau (in exf_bulkformulae.F) from windstress averaged to
723       mass points to avoid tau = 0
724     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
725    o rdmnc.m: make it work with "global" files created with gluemnc
726    o rdmnc.m : some improvements in dealing with singleton dimension
727      (tested on all testreport mnc output files).
728    o genmake2: disable pkg/profiles if netcdf test fails.
729    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
730    o move call to cal_readparms up to make calendar parameters/variable available
731      to all packages
732    
733    checkpoint58v_post
734    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
735      useDynP_inEos_Zc tested.
736    o pkg/exf: changes to properly interpolate/mask/scale initial fields
737    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
738      and portions thereof.  See read_cs.txt for description and examples.
739    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
740      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
741      following the great-circle arc between those 2 points.
742    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
743      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
744    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
745     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
746     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
747     - still needs work (not working with some options ; efficiency to improve)
748       and serious testing.
749     - use this scheme for temperature & salinity in 2 advection test exp.:
750       advect_xy & advect_xz, respectively.
751    
752    checkpoint58u_post
753    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
754    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
755    o testreport: add option "-skipdir" to skip some test.
756    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
757      momentum calculation.
758    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
759    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
760      remove checkpoint.F and the_correction_step.F (no longer used);
761      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
762    o add option (linFSConserveTr) to correct for tracer source/sink due to
763      Linear Free surface
764    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
765    o pkg/thsice: fix reading mnc-pickups
766    
767    checkpoint58t_post
768    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
769    o pkg/mdsio:
770     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
771       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
772       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
773     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
774     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
775       either MDS_READ_FIELD or MDS_WRITE_FIELD )
776     - new S/R (to replace MDSWRITEMETA), which allows to write more
777       informations (variable names, time ...) to meta files.
778     - modify rdmds.m to give back the meta file content.
779    o pkg/diagnostics: change vertical interpolation to be safer, and more
780       flexible (define p-levels to interpolate to in data.diagnostics);
781      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
782       diagnostic pointer.
783    o pkg/seaice: more cleaning up of seaice_growth, added many comments
784    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
785    o fix multi-category seaice:
786     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
787       SEAICE_MULTICATEGORY
788     - fix short wave heat flux
789    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
790       and allow to use EVP solver. Change forward lab_sea: test both EVP
791       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
792    o Initial check-in of lab_sea adjoint
793      (very similar to natl_box_adjoint/code_seaice)
794      * used C-grid and EVP solver
795      * used KPP, GM/Redi
796      * uses inAdExact=.TRUE.
797      * gradient checks fail for both ADM and TLM
798        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
799        f.d. gradients actually seem more problematic than ADM, TLM gradients;
800        issue is related to forward mismatch between g77 an ifort
801    o pkg/seaice: overhaul of thermodynamics
802     - growth.F and groatb.F are replaced by new routine seaice_growth.F
803     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
804     - move a few global fields out of SEAICE.h into seaice_growth.F and
805       make them 2D (FICE/QNETO/ ...)
806     - remove FO (it is the same as QNETO)
807     - introduce a few local fields to avoid modifying external fields such
808       as atemp, etc.
809    
810    checkpoint58s_post
811    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
812      changed exf_set_gen.F so that
813        genperiod=0 means input file is one time-constant field and
814        genperiod=-12 means input file contains 12 monthly means
815    o CG2D: use pre-computed solver main-diagonal (stored in common block);
816      this affects truncation error ; generate new output file for exp. which
817      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
818        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
819        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
820        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
821        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
822        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
823    o start implementation of deep-atmosphere and anelastic formulation
824    o verification: remove 2nd copy of input files and use script "prepare_run"
825      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
826    o mom_common/vecinv/fluxform: fix a few initialisation isssues
827    o profiles: fix for multithreaded case
828    
829    o diagnostics: rename few diags:
830      s/'PRESSURE'/'RCENTER '/g
831      s/'TICE    '/'oceFreez'/g
832      s/'TAUX    '/'oceTAUX '/g
833      s/'TAUY    '/'oceTAUY '/g
834      s/'SWFLUX  '/'oceQsw  '/g
835      s/DIFx/DFxE/g
836      s/DIFy/DFyE/g
837      and add few ocean-forcing diagnostics:
838      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
839    o modifications to pkg/seaice/growth.F and budget.F, which change results of
840      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
841      as actual snow thickness.  It now refers everywhere to effective snow
842      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
843    
844    checkpoint58r_post
845    o modifications to pkg/seaice/growth.F, which change results of
846      lab_sea experiment: fixes pertain to melting snow over open water, to
847      masking EVAP under sea ice, and to using the correct AREA variable for
848      computations of EVAP, PRECIP, HSNOW, and GHEFF
849    o add ability to read bathy, salt, and theta using MNC (off by def)
850    o add flooding algorithm and advection of HSNOW for pkg/seaice;
851      both are turned off by default and do no change any results
852    o seaice advection with pkg/thsice: a step toward the use of non-linear
853      advection scheme, but #ifdef or commented out for now (requires more EXCH).
854    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
855      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
856      in natl_box (affects results @ truncation level: update output.txt)
857    o multi-threading and IO:
858      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
859      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
860        (needed to work with SingleCpuIO): tested in all verif. exp.
861    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
862      affects the results (but none of the verification test uses this scheme).
863    o Adding some pkg/diagnostics capability to pkg/seaice
864      (will certainly be subject to changes)
865    o ctrl: adding new control variables:
866      lwflux, lwdown, evap, snowprecip, apressure, runoff
867    
868    checkpoint58q_post
869    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
870      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
871      high_res_cube configuration by 4% on Columbia.
872    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
873      add (in global_with_exf/code) a version of EXF_INTERP_READ without
874      dynamical allocation (seems to work in multi-threaded).
875    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
876      single CPU io) so that TAF does not have to see EESUPPORT.h
877    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
878    
879    checkpoint58p_post
880    o obcs: stop if obcs is used with useCDscheme = .true.
881    o shelfice:
882     - fix a sign error so that no slip at shelfice interface works
883     - remove stop for combination non-hydrostatic code and shelfice. That does
884       not mean, that the results are correct, but at least they are numerically
885       stable
886    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
887    o added adjoint exch routined for all exch*3d* routines
888      and updated flow directives
889    
890    checkpoint58o_post
891    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
892      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
893    o change controling S/R for writing pickup file (new S/R do_write_pickup)
894      and clean-up reading/writing of pickup files.
895    o fix local version of read/write pickup (NH part) in rotating_tank/code
896    o simplify EXCH interface:
897     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
898     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
899    o added the regrid package
900    o shelfice:
901     - add a simple boundary layer scheme to reduce noise
902     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
903    
904    checkpoint58n_post
905    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
906       local variable (not in common block).
907    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
908      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
909      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
910        to work with SingleCpuIO.
911    o add "_d 0" to real constant of pkg/cfc subroutines ;
912       update exp. cfc_exemple & tutorial_cfc_offline output files.
913    o multi-threading and IO:
914      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
915        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
916      - barrier before and after reading.
917      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
918      - avoid using MDS_WRITELOCAL for LAND pkg output.
919      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
920        common-block variables ; Allows multi-threading with master-thread IO.
921    o change default MAX_NO_THREADS from 32 to 4 ;
922      and stop cleanly when MAX_NO_THREADS is too small.
923    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
924    
925    checkpoint58m_post
926    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
927       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
928    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
929       keep global_ocean.90x40x15 (for AD testing) with former secondary test
930       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
931    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
932        add MITgcm_tutorials (= code + all the tutorials)
933    o ecco, option to compute cost for total ssh (mean+anom)
934    o consistent with addition of ptracer and ssh in pkg/profiles
935    o profiles: adding ptracer and ssh
936    o testreport: change multi-test output-file name
937      (from output.txt.{name} to output.{name}.txt)
938    o profiles: now ok for mutli-tiles case
939    o seaice: add 4 parameters for different advection schemes for area,
940      (effective) seaice thickness, enthalphy, and snow height. Their default
941      is the standard parameter SEAICEadvScheme
942    o calc_gw:
943     - add cosFacU in zonal viscous flux (harmonic.visc.).
944     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
945       of tutorial_plume_on_slope.
946    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
947    o calc_gw: true flux-form, account for horizontal grid spacing.
948      update rotating_tank results, but not plume_on_slope (affected at
949      truncation level, 11 digits).
950    
951    checkpoint58l_post
952    o calc_gw:
953     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
954     - remove side-drag for now (need to fix it); update plume_on_slope results.
955     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
956    o commit code to make SST/SSS weights spatially variable
957      (based on either variable in-situ or variable initial T/S weights)
958    o pkg/ecco:
959      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
960        now based on horizontally varying weights wthetaLev, wsaltLev
961      * cost_averagesflags now returns year indices in addition to day, month
962      * sflux balance is performed on annual basis
963        (sflxumm, sfluxmm2, bal_sfluxmm)
964      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
965        including separate counting and multipliers
966    o pkg/rbcs
967      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
968    
969    checkpoint58k_post
970    o testreport:
971     - always build in dir. "build" (if not there, mkdir build instead of building
972       & running in input)
973     - run in dir run (if it exists), in build otherwise.
974     - call prepare_run (if input/prepare_run exists)
975     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
976    o pkg/exf modifications to interpolation and rotation routines for more
977       reasonable treatment of North Pole singularity: for tracers North Pole
978       value is set to northernmost zonal-mean value, for zonal velocity it is
979       set to zero, and for meridional velocity it is set to northernmost value.
980    o pkg/exf/exf_check_range.F
981     - add tile index to diagnostics and move stop statement to the very
982       end of the routine.
983    o pkg/diagnostics: (diagnostics_main_init.F)
984      define title of isomorphic variables according to the current config.
985    o pkg/thsice with pkg/seaice dynamics:
986    - fix domain of computation (interior only, required for exf) and do exchanges
987    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
988    o towards a standard way of dealing with multi-threading in MONITOR
989      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
990    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
991       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
992    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
993    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
994    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
995       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
996    o tracer advection:
997     - clean-up and simplify calc_common_factors.F
998     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
999       advection subroutine (but still not used within DST advection S/R)
1000    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1001    
1002    checkpoint58j_post
1003    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1004      from file (collects calls previously in FORWARD_STEP)
1005    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1006    o adjoint store dir. adjusted accordingly
1007    o genmake2
1008      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1009    
1010    checkpoint58i_post
1011    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1012      on wind stress (SEAICEstressFactor defaults to 1.)
1013    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1014      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1015    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1016      on CS-grid: no longer loosing mass.
1017    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1018    o pkg/ggl90: fix sloppy output and fix a bug
1019    o pkg/seaice: added SEAICEuseEVPpickup parameter
1020      - Set to false in order to start EVP solver with
1021        non-EVP pickup files when using SEAICEuseEVP
1022      - fix sign error in diffusion in seaice_calc_rhs
1023    
1024    checkpoint58h_post
1025    * Modifications for bottom topography control
1026      o replace hFacC by _hFacC at various places
1027      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1028      o add non-self-adjoint cg2d_nsa
1029      o update autodiff support routines
1030      o re-initialise hfac after ctrl_depth_ini
1031      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1032    * Adding verification for 5x5 box (4-layer) bottom topography control
1033    
1034    checkpoint58g_post
1035    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1036       used for mean seasonal cycle, mean diurnal cycle); add an example
1037       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1038    o pkg/ggl90:
1039      - add parameter (minimum surface kinetic energy)
1040      - fix bug (avoiding division by zero)
1041    o couple pkg/thsice to pkg/seaice:
1042      - modify advection in seaice to accomodate new scalar fields to be advected
1043      - only muliDimAdection scheme work with seaice/thsice
1044      - mapping of thsice-variables to seaice-variables, back and forth
1045      - does not break the verification experiments, but does not give the
1046        desired results either
1047    o pkg/seaice
1048      - make (default) second order advection a bit less confusing?
1049    
1050    checkpoint58f_post
1051    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1052      to pkg/seaice):
1053      - new routines thsice_map_exf and thsice_get_exf provide the interface
1054      - add an additional formal parameter to thsice_solve4temp
1055    o pkg/exf:
1056      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1057      - correct Stefan-Boltzmann constant
1058      - new parameter for longwave surface emittance
1059      - separate some stuff from exf_bulkformulae into new routines  
1060        exf_radiation, exf_wind
1061      - add new parameters and constants: longwave emissivity for ocean, ice
1062        and snow, evaporation parameters over ice
1063      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1064        either wind from stress or stress from wind
1065    o pkg/thSIce:
1066    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1067    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1068       and THSICE_CALC_THICKN
1069    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1070    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1071      to make debugging easier.
1072    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1073    o pkg/bulk_force:
1074      - clean-up comments and parameters ;
1075      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1076    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1077      generate new output for test-experiment: aim.5l_cs.thSI
1078    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1079      testreport accordingly
1080    
1081    checkpoint58e_post
1082    o SEAICE_CGRID adjoint done
1083    o R_STAR adjoint implemented.
1084      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1085      * need to sort out init. of h0facc, etc.
1086    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1087      to be able to use it in pure forward.
1088    
1089    checkpoint58d_post
1090    o upgrade simple test-experiment to tutorial example:
1091     step.1: duplicate the experiment and (step.2) will remove the old copy.
1092      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1093      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1094      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1095      tutorial_global_oce_biogeo    <- copy of dic_example
1096      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1097      tutorial_plume_on_slope       <- copy of plume_on_slope
1098      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1099      tutorial_global_oce_optim     <- empty for now (David ?)
1100      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1101     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1102    o correct a sign problem in cost_scat.F
1103    o obcs and ptracers: fix boundary conditions for advections schemes
1104      with larger stencil
1105    o thsice adjoint: start
1106    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1107      completeness
1108    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1109      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1110    o ptracers adjoint:
1111      * avoid extensive recomputatations
1112      * fix missing re-init. of gptr (missed by TAF)
1113    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1114      me to turn off the excessive output to STDOUT that this package produces
1115    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1116      and add those terms in Vector-Invariant formulation.
1117    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1118      if the control period (xx_hfluxperiod etc) is 0
1119    o in profiles pkg, clean routines and fix details
1120    o in ecco pkg, reading ssh data:
1121      fix problem in case the model does not start at iter0=0
1122    o fix mnc-pickup/restart for ptracers
1123    o new package prifiles:
1124      code to compute profile-based cost by Gael Forget
1125      (modifs in ecco, ctrl, autodiff)
1126    o Benign bug fix in initialization (spotted by M. Mazloff) of
1127      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1128    
1129    checkpoint58c_post
1130    o adjoint: finish NLFS adjoint and provide reference output in
1131      verification/global_ocean.90x40x15/results_ad_nlfs
1132    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1133      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1134      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1135      with SEAICE_CGRID defined.
1136    o move calendarDumps from "data" to "data.cal" and clean-up the code
1137      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1138    o add useEXF & useCAL flags (for now, set in hard-coded way)
1139    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1140      (were missing in NH mode, and wrong in quasihydrostatic mode).
1141      waiting for Chris updated version of calc_gw to add those CALLs.
1142    o fix bug in quasihydrostatic S/R ;
1143      add a test for this option: global_ocean.90x40x15.qshyd
1144    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1145      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1146    o add on/off flag useOffLine for package OFFLINE
1147    o seaice:
1148      - modify advection so that it works also on the C-grid
1149      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1150        problem in multi-tile runs with C-grid
1151      - add flags for clipping ice velocities and/or masking solver forcing
1152      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1153        C-grid solver
1154      - added a few comments to seaice_diffusion.F
1155      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1156        are now exclusive)
1157      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1158        required re-ordering the code a little:
1159       + make DAIRN global variable (defined in SEAICE)
1160       + move computation of the viscosities eta and zeta into a new separate
1161         routine (because I need to recompute them in seaice_ocean_stress.F)
1162    
1163    checkpoint58b_post
1164    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1165      update output.txt of exp. aim.5l_cs.thSI
1166    o various mnc cleanups and improvements:
1167      + shrink lookup tables by factor of ~4
1168      + better error reporting when running out of lookup space
1169      + able to handle longer path/file names (up to 500 chars)
1170    o adjoint:
1171      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1172      - TBD: "hidden" mom_vecinv recomp. in dynamics
1173    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1174     (allow to differentiate between forcing components using new integer flags:
1175      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1176     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1177    o ecco
1178      - enable trend removal from SSH anomaly obs.
1179    o adjoint
1180      - a fix for PmEpR when #undef EXACT_CONSERV
1181      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1182      - try to fix "hidden" recomp. in forward_step for NLFS
1183        (NLFS seems broken sometimes after I checked it in)
1184    o seaice:
1185     - add c-grid version of the dynamic solver:
1186       + three new routines that are the c-grid substitute lsr, dynsolver
1187         and ostres
1188       + put a few fields that were local to dynsolver into global common
1189         blocks, so that I can move the computation of stresses etc into
1190         seaice_lsr (saves coding but may break the adjoint).
1191     - replace more hardwired parameters by runtime parameters
1192     - add ice masks that mask the rhs of the implicit solvers where there
1193       is no ice (commented out in seaice_dynsolver, because i am not sure
1194       if this works properly), eventually this should replace the clipping
1195       of ice velocities in seaice_dynsolver to +/-40cm/s.
1196    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1197      include it only where its needed
1198    o move balancing of fluxes before the call of external_forcing_surf
1199    o seaice:
1200      - correct units of turning angles (now they are really in degrees)
1201      - move computation of GWATX/Y out of main routine into dynsolver
1202      - initialize GWATX/Y in seaice_init
1203    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1204      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1205    o seaice: add runtime flags for turning angles (default to zero)
1206    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1207      and trend from exf forcing and ctrl control adjustments
1208    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1209      (since checkpoint57x_post)
1210    o change the default rotation period to 86164.s = the Earth rotation
1211    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1212      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1213    o seaice advection: add code for choosing between the default (2nd order
1214      central differences) and multiDim advection schemes provided by
1215      pkg/generic_advdiff
1216    o seaice:
1217      - removed all references to SEAICE_GRID.h fields from
1218        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1219        (cubed-sphere configuration will change a little)
1220      - grid computations in seaice_init are obsolete now.
1221      - cleaned up code a little so that is easier to read (hopefully).
1222      - added new (better?) discretizations of default advection and diffusion
1223        (turn on with SEAICEuseFluxForm)
1224      - replace 1 in 3d global fields by kSurface in growth.F
1225      
1226    checkpoint58a_post
1227    o seaice:
1228      - bug fix in advect.F
1229    o shelfice:
1230      - separate shelfice load anomaly from pload (breaks with time
1231        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1232        Its default is 0., but it may be computed more cleverly from (unknown)
1233        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1234        done offline. A good approximation of the pressure load anomaly is
1235        necessary to avoid large initial adjustment processes underneath
1236        deep-reaching shelfice.
1237      - small fix in ISOMIP shelfice_thermodynamics
1238      - add more sophisticated thermodynamics of Hellmer (1989), this is
1239        now the default
1240      - give a few constants more intuitive names
1241    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1242      if bulk formulae are used in long integration (especially EmPmR). Turn
1243      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1244      if balancePrintMean, the imbalance that is substracted is printed to
1245      STDOUT.
1246    o fix bug (typo) in obcs_apply_eta.F
1247    o add a new package shelfice which enables us to model the circulation
1248      underneath shelf-ice with draughts of hundreds of meters.
1249     - works
1250     - to do: + include improved thermodynamics
1251              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1252                instead of new field kTopC
1253              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1254                instead of new field R_shelfIce and new code in ini_depth.F
1255                and ini_mask_etc.F?
1256              + adjust vertical mixing schemes?
1257    o seaice pkg:
1258     - add a cpp-flag to include a simple formula for a salinity dependent
1259       freezing point of sea water at the surface
1260     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1261       meridional stresses are now different (and hopefully correct)
1262    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1263       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1264       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1265    o pkg/diagnostics: add options and parameters for regional-statistics
1266       diagnostics ; define regions by reading a region-mask from a file
1267       (might add other options later)
1268    o pkg/bulk_force:
1269     - add option and parameters to use AIM surface-flux formulae.
1270     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1271       others forcing fields (defined in PARM05, parameter file "data") are loaded
1272       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1273     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1274     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1275     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1276       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1277     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1278    
1279    checkpoint58
1280    o add "--embed-source" option to genmake2 which, when the supporting
1281      tools can be compiled (as determined by genmake2) will turn on the
1282      embed_files package which then embeds the entire MITgcm source code
1283      (*.[fFhc] + Makefile) used for the build within the executable
1284      - requested by CNH but off by default
1285      - adds a paltry <9MB to the mitgcmuv executable in most cases
1286      - only writes the output when useEMBEDSRC in eedata is true
1287    o clean up 3-dim. relaxation codes:
1288      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1289      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1290      * Thanks to Tom Haine for testing!
1291    
1292    checkpoint57z_post
1293    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1294      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1295    o fix the pickup behavior for obcs in combination with ptracers
1296    o fix a bug in ptracers_external_fields_load
1297    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1298      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1299    o transfered surface NH pressure to eta field (if exactConserv).
1300    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1301         and update lab_sea output.txt file.
1302    o completing 3-dim. relaxation code: additional term
1303         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1304      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1305      * At compile time, in "EXF_OPTIONS.h" set
1306          #define  ALLOW_CLIMTEMP_RELAXATION
1307          #define  ALLOW_CLIMSALT_RELAXATION
1308      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1309          tauThetaClimRelax3Dim = 15552000.0,
1310          tauSaltClimRelax3Dim  = 15552000.0,
1311      * 3 cases:
1312          1) Use a constant-in-time 3-dim. field
1313          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1314          3) Real-time relax. to time-evolving prescribed field
1315    o Adding Laplacian-type smoothness constraint on
1316      initial and boundary (forcing) controls (ic, bc)
1317      * enable at compile-time via
1318        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1319      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1320      * Absolute scale somewhat unclear so far
1321      * no area weighting was included since no other cost term does so far
1322    
1323    checkpoint57y_post
1324    First step for a NLFS adjoint
1325    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1326    o new init. routines for calc_r_star, calc_surf_dr
1327    o still need to deal with ini_masks_etc
1328    o testreport seemed happy
1329    checkpoint57y_pre
1330    
1331    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1332    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1333    o add new offset feature to offline pkg (plus minor cleanup)
1334    o cfc fixes for final year of integration
1335    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1336      be in GCHEM_OPTIONS).
1337    
1338    checkpoint57x_post
1339    o fix testreport Pb in multiple test experiment.
1340    o cleanup our namelist syntax in verification:
1341      - make it more F95 standards compliant (some work still needed)
1342      - allows the vast majority of our tests to work with gfortran
1343    o Non-Hydrostatic:
1344     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1345     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1346    o Allow to apply AB on T,S rather than on AB(gT,gS):
1347     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1348     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1349       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1350     - need a "clever" read_pickup to restart from the other AB formulation
1351    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1352    o remove some unused variables (reduces number of compiler warnings)
1353    o adjoint
1354      * Disable useVariableViscosity for adjoint for time being
1355        (there are a number of extensive recomputations)
1356      * Initialize certain variables needed for adjoint
1357    
1358    checkpoint57w_post
1359    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1360                 fix the singleCpuIO RS version of MDSWRITEFIELD
1361       and add a WARNING if using globalFiles=T with multi-processors.
1362    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1363      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1364    o tracer advection scheme:
1365      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1366       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1367       was not very convenient).
1368      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1369       (further tests needed for the implicit DST & Flux-Limiter schemes).
1370    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1371      and sRef for convenience, handy, when you want to initialize
1372      ptracers in a large domain with a constant non-zero value. Also,
1373      untangle ptracers_init.F a little.
1374    
1375    checkpoint57v_post
1376    o change dome exp. to use variable viscosity in side-drag terms.
1377    o remove all the files from the cfc_offline test since they are now
1378      incorporated into tutorial_cfc_offline which has been producing
1379      identical results for a few days of testing
1380    o add new parameter: sideDragFactor to enable half-slip-side BC
1381      and change side-drag S/R to use viscosity from mom_calc_visc
1382      (can switch back by setting sideDragFactor=0.); affects results at
1383      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1384       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1385    o vorticity & strain are now computed without masking, to account for
1386      no-slip-side BC in variable viscosity calculation ; mask is applied
1387      anyway later on, before computing advection/coriolis terms.
1388    o modify exp4 to test new obcs support for reading from external files
1389      and for passive tracers
1390    o fix behavior of ptracers_monitor when monitor output is written to a
1391      netcdf-file; still not independent of monitor.F (writes in the same
1392      file).
1393    o change default value of tRef (put a uniform, meaningful value for ocean
1394      & atmos) and initialize sRef (was missing, as Martin mentioned).
1395    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1396      to be proportional to enstrophy dissipation length.  Thus,
1397       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1398      This is now consistent with Smagorinsky and with the manual.
1399    
1400    checkpoint57u_post
1401    o OBCS and PTRACERS: add open boundary support for passive tracers
1402      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1403        OB-values from file; this is not different from the way theta and salinity
1404        are treated
1405      - however, Orlanski-radiation conditions are not supported, and the model
1406        will stop if you use pTracers and Orlanski at the same time.
1407      - beefed up the rountine obcs_external_fields_load: now only those open
1408        boundary values are overwritten with values from files for which there
1409        are really files, otherwise the OB-fields remain untouched. This makes
1410        it possible to use different OBs at different ends of the domain (as
1411        with EXF)
1412    o reduce number of exch calls in shap_filt (s2).
1413    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1414      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1415    
1416    checkpoint57t_post
1417    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1418    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1419      same truncation, independent of the face number: affects affects several
1420      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1421    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1422      note that biharmonic viscosity + no-slip was not tested in any experiment.
1423    o fix bug in non-linear free-surf side-drag ; generate new output for
1424      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1425    o make mnc honor the writeBinaryPrec flag for most kinds of output
1426    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1427    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1428      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1429    o add brackets in multi-terms sum to get same truncation, independent of
1430      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1431      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1432    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1433      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1434      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1435      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1436      Suggested values of viscosity parameters found in mom_calc_visc.
1437      Many new viscosity diagnostics available.
1438    
1439    checkpoint57s_post
1440    o Add clearing-house for viscosity calculations, mom_calc_visc and
1441      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1442      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1443      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1444      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1445      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1446      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1447      ViscAhStrain and viscAhTension are now retired.
1448    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1449    o In response to JMC's bug report, genmake2 now ignores any soft-links
1450      that it finds in the *current* directory when searching for files.
1451      Soft-links found in any other source directories will still work as
1452      they did before.
1453    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1454      a C routine to unlimit the stack size
1455    o mnc-ify pkg/aim snapshot vars
1456    o mnc-ify pkg/land as requested by Daniel
1457    o various changes to mnc including:
1458      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1459      - output can now be grouped so that all files within a group
1460          change the ITER portion of their names in lock-step together
1461      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1462          and works with both EXCH1 and EXCH2 (but needs more testing)
1463      - writing works for all verification test cases w/ g77 on Linux
1464    
1465    checkpoint57r_post
1466    o make MNC variable initialization happen earlier
1467    o add diagnostics for (almost) each term of the momentum Eq.
1468    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1469    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1470    o remove MINIMAL_TAVE_OUTPUT option ;
1471      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1472    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1473      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1474    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1475    o add time-dependent SST, SSS control
1476    o cost terms in ecco/ modularized (new cost_generic.F)
1477    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1478    o new infrastructure for seaice model vs. obs misfits in seaice/
1479      * driver from the_main_loop.F is seaice_cost_driver.F
1480      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1481      * gradient check in Exp. 6a of natl_box_adjoint/
1482    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1483      (see README file)
1484    
1485    checkpoint57q_post
1486    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1487    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1488      - bug was reported by Jean-Michel and Ian Fenty
1489    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1490      update exp. cpl_aim+ocn output.
1491    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1492      Needed for high-res. runs with large global files
1493      to be able to limit tapelev size
1494    o Changed some tests for adjoint:
1495      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1496      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1497      * global_ocean.90x40x15/ back to default 3-level checkpointing
1498    o Modifications to enable scripted COMMON to MODULE conversion
1499      * verification/OpenAD/code/ has necessary scripts and description;
1500      * converts, compiles and runs successfully;
1501    
1502    checkpoint57p_post
1503    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1504    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1505      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1506    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1507    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1508      (was already the case for dissipation with mom_vecinv,
1509       and also the case for grad.PhiHyd when staggered-timeStep)
1510      This will allow to put dissipation out-off the AB time-stepping.
1511     Unfortunately, affects truncation error. Update output of exp. that "fails"
1512      (cg2d matching number) and leave the others for later: front_relax(10),
1513      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1514      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1515    
1516    checkpoint57o_post
1517    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1518      (2) its ready to be documented during the 20050801 DocFest
1519    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1520      for ideal_2D_oce and lab_sea on linux_ia32_g77
1521    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1522      in global1x1_tot/code_seaice_adj to access indices 32, 33
1523      (worth another tag)
1524    
1525    checkpoint57n_post
1526    o adding precip control xx_precip 32
1527    o adding swflux control xx_swflux 33
1528    o Replacing 10 forcing penalty cost routines by 1 generic.
1529    o Implementing partitioning in time-mean and variable adjustment
1530      for atmos. state.
1531    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1532    o in natl_box_adjoint:
1533      * updated exp 1 to 10
1534        (but does not have time-mean vs. variable split results yet)
1535    o updated global1x1/*_seaice_adj/
1536      to incorporate latest changes
1537    o enable useSingleCpuIO for mdsio vector routines
1538      (applies in particular to tapelev I/O)
1539    o removed inefficient K-loop in all active_file*control*.F
1540    
1541    checkpoint57m_post
1542    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1543      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1544    o pkg/exch2: filling of face-corner halo regions is optional
1545      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1546    
1547    checkpoint57l_post
1548     tag before updating tutorials (pre-release-2)
1549    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1550       for output and interpolation of input fields onto model grid)
1551    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1552       Affects results of exp. rotating_tank ; update output.txt.
1553    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1554          and taking the square quantity and/or using a fraction-weight field.
1555    o fix aim_diagnostics_init.F mate numbers.
1556    o add mnc output capability to diagnostics/diagstat and update
1557      our cvsignore files for the ACSII output generated
1558    
1559    checkpoint57k_post
1560    o lab_sea now uses diagnostics package and provides a suite of
1561      new EXF diagnostics output.
1562    
1563    checkpoint57j_post
1564    o exf
1565      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1566        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1567        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1568      * extended diagnostics output
1569        - now includes all EXF variables
1570        - hs, hl moved to common block
1571        - separate S/R for diagnostics, called after ctrl vector is added
1572        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1573        - EXFqnet contains true Qnet (i.e. includes qsw)
1574      * updated verif. lab_sea, global_with_exf
1575      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1576        to ensure that diagnostics sees a true EXFqnet
1577    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1578    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1579      several times with different frequencies.
1580    o mnc-ify the thsice package as requested by Daniel Enderton
1581      - the monitor--MNC output needs work
1582      - many attributes need to be added (most are currently blank)
1583    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1584      - many attributes need to be added (most are currently blank)
1585    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1586    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1587    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1588      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1589         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1590    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1591     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1592    
1593    checkpoint57i_post
1594    o Diagnostics package was changed: diagnostic allocation is now deactivated
1595      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1596    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1597      add 1rst Order upwind vertical Shear.
1598    o add a quick fix for A/B checkpointing in OFFLINE mode
1599    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1600      end-run around the C/Fortran linking horror in eesup/src/timers.F
1601    o added pkg/runclock: allows user to terminate run based on wall clock
1602    o added non-hydrostatic scaling parameter: nh_am2
1603    o pkg/my82: futile attempt to make results compiler-independent by adding
1604      some "_d 0", etc. no effect.
1605    o for mnc output, fill the 'T' coordinate var with myTime and create a
1606      separate 'iter' variable for iteration count
1607    o pkg/diagnostics:
1608      add new capability: output of Global/Regional & per-level statistics ;
1609      tested against monitor output (including land & thSIce) on various exp.
1610    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1611    
1612    checkpoint57h_done
1613      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1614      data.diagnostics, data.gchem, data.ptracers) is done.
1615    
1616    o pkg/diagnostics: prepare for Global/Regional statistics.
1617      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1618    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1619      and rename it: DIFFERENT_MULTIPLE
1620    
1621    checkpoint57h_post
1622    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1623    o pkg/diagnostics: change output frequency, now in seconds (instead
1624      of Nb of iterations). This requires to change data.diagnostics.
1625    checkpoint57h_pre
1626    
1627    o in mnc, let the user create the output dir if both mnc_outdir_date
1628      and mnc_outdir_num are false
1629    o add fflags() to pkg/diagnostics which allows one to specify, on a
1630      per-file basis, the file precision [default behavior is unchanged]
1631    o added diagnostics to pkg/kpp, including computation of mixed layer
1632      depth based on a temperature/density criterion
1633    o updated verification/natl_box to test the new pkg/kpp diagnostics
1634    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1635    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1636    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1637      not mnc -- this mistake was found by JMC and is now corrected
1638    
1639    checkpoint57g_post
1640    o add Adams-Bashforth 3rd Order time stepping:
1641      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1642      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1643    checkpoint57g_pre
1644    
1645    o make lambda[Theta,Salt]ClimRelax spatially varying
1646      (default remains spatially uniform constant based on tau)
1647    o added new control variables
1648      * init. uVel, vVel, etanN
1649      * lambda[Theta,Salt]ClimRelax
1650    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1651      (suggested by G. Forget)
1652    
1653    checkpoint57f_post
1654    o add parameter "baseTime" = model base time = time at iteration zero
1655      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1656      account for baseTime shift
1657    o move Coriolis arrays from PARAMS.h to GRID.h
1658    checkpoint57f_pre
1659    
1660    o mnc-ifying the seaice package
1661    o introduced an alternative length scale calculation for use in the limiting
1662      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1663    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1664    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1665      as well as grad(vort3).  Made it compatible with both approximate form
1666      for the cubed sphere and full form of these gradients.  Added flag
1667      useFullLeith to select between approximate and full form.  
1668    o add "d0" in getcon.F to reduce differences between compilers/platforms
1669      update output.txt of exp. fizhi-gridalt-hs
1670    o change port_rand funtion to allow to set the seed.
1671    o fix obscure MNC bug involving conversion between reals and integers
1672      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1673        new version is now more standards-compliant
1674    o adjoint-related modifications
1675      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1676      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1677      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1678    
1679    checkpoint57e_post
1680    o Adding eddy stress controls a la Ferreira et al.
1681    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1682    
1683    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1684      update output.txt of exp. fizhi-gridalt-hs
1685    o add more "Z" dimensions and associated coordinate vars to MNC
1686    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1687    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1688      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1689      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1690      months and years.  Requires pkg/cal.
1691    o diagnostics: add pickup functionality
1692      - off by default for backwards compatibility
1693      - current version only uses MDSIO -- MNC will be added
1694    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1695    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1696    
1697    checkpoint57d_post
1698    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1699    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1700      output from the diagnostics package
1701    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1702    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1703      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1704    o add coordinate variables to the MNC output from the diagnostics package
1705    o change MNC-flags default value: true when useMNC=TRUE
1706    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1707      the ability (off by default) to read the grid information using MNC
1708    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1709    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1710    o do snap-shot diagnostics at the middle of the time-interval (instead of
1711      at the end).
1712    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1713      new test for AIM with thSIce + slab-ocean
1714    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1715    o move state variable diagnostics to the beginning of the time step ;
1716      (note: still needs some work specially for snap-shot diagnostics)
1717      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1718    
1719    checkpoint57c_post
1720    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1721    o generate new output.txt files on faulks with g77 & the new -ieee option
1722    checkpoint57c_pre
1723    
1724    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1725      update output.txt of exp. global_ocean.90x40x15
1726    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1727      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1728    o add saltFlux(+File) forcing capability with periodicExternalForcing
1729    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1730    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1731    o improvements for the MNC output from DIAGNOSTICS:
1732      - correct handling of the unlimitied dimension
1733      - all dims now have associated coordinate variables
1734      - variables located at U, V, and Corner ("Z") points are now written
1735        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1736        *all* data points are output
1737    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1738    o added pkg/seaice/seaice_monitor.F
1739    o mdsio_readfield.F can now read files visible only to master MPI process.
1740    o pkg/seaice: some test code for ice-modified ocean stress
1741    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1742      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1743      spurious negative numbers for precipitation and humidity.  Will cause
1744      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1745    o pkg/ctrl/
1746      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1747        May be enabled via doPackDiag
1748      *  introduce z-scaling of
1749         + gradient (doZscalePack) and
1750         + control (doZscaleUnpack)
1751    o pkg/mdsio/
1752      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1753      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1754    
1755    checkpoint57b_post
1756    o simplify options in diagnostics_fill arguments (remove weird combinations)
1757    o fix MNC coordinate variables so that they now contain per-face index
1758      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1759      general, EXCH2 grids are only aligned to a "local" coordinate system
1760    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1761    o Implement instantaneous output within pkg diagnostics:
1762      setting a negative frequency in data.diagnostics produces
1763     "snap-shot" output (as opposed to time-average if freq > 0)
1764    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1765      NOTE: change ptracer diagnostics name: use 2 characters to work with
1766            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1767    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1768      becomes the coordinate variable for the 'T' dimension
1769    o add CF-style coordinate variables to MNC
1770      - just a first cut:  numbers are meaningless on the cubesphere and
1771        missing along the T axis but otherwise it works!
1772    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1773    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1774    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1775      this is based directly on what the model compute, so that the content of
1776      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1777    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1778    o clean up build options files for SunOS, in particular
1779      - remove -traditional from xmakedepend
1780      - change -xarch=v9 to -xarch=native for f77
1781      - restore use of make (not gmake)
1782      - add CC=gcc if using g77
1783    o changes per discussion of AM, JMC, & EH3 today:
1784      - move redundant "grid" variables out of "state" -- in preparation of
1785        creating proper CF-style coordinate variables and in recognition
1786        that any/all grid variables can be easily copied (eg. w/NCO) from
1787        the grid files into any of the other NetCDF files
1788      - *always* output grid variables with MDSIO (this will eventually be
1789        changed)
1790      - output MNC grid file if useMNC is true
1791    o every instance of _END_MASTER() has been found and replaced with
1792      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1793      preprocessors
1794    o re-arrange diagnostics pkg initialisation:
1795     - allow each package to extend the available diagnostics list
1796     - add some checking and fix small problems (multi-threaded, ...)
1797     - new S/R diagnostics_fill (replace fill_diagnostics):
1798       look through the short list of active diag. (instead of the long list)
1799       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1800    
1801    checkpoint57a_post
1802    o this set of changes restores TAMC compatibility
1803      tested for global_ocean.90x40x15 adjoint on trough
1804      (what a pain)
1805    
1806    checkpoint57a_pre
1807    o some modifs in tools/build_options for sunos
1808    o call ctrl_pack for ctrl at end for optimcycle=0
1809    
1810    checkpoint57
1811    o add horizontal bi-harmonic viscosity for vertical velocity
1812      - new parameter viscA4W (defaults to viscA4)
1813      - affects only non-hydrostatic code
1814      - to be done: no-slip lateral boundary conditions
1815    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1816    o implement Implicit Vertical advection for pTracers
1817    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1818      (implemented also for implicit vertical diffusion & advection)
1819    o OBCS: extend application of tracer open boundary conditions
1820      to a strip beyond the boundary of width Olx/Oly
1821    o add call monitor to TAF set of required calls (flow directives)
1822      and include in natl_box_adjoint
1823    o untangle a few ifdefs related to cost, ctrl, autodiff
1824      untangel a few ALLOW_ECCO_OPTIMIZATION
1825    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1826      (theta2, salt2 in ecco_cost_weights)
1827    
1828    checkpoint56c_post
1829    o OBCS as control variables
1830      - update ctrl_ad_diff.list, obcs_ad_diff.list
1831      - remove balance of obcs controls from default
1832      - fix index bug nobcs in ctrl_init
1833      - fix dummy fields filen in ctrl_pack
1834      - add dummy weights for obcs
1835    o lsopt: comment out fort.94 output
1836    o optim:
1837      - remove unnecessary header files
1838      - adjusted namelists
1839      - add xerbla.F to Makefile
1840    o exf:
1841      - multiple modifications of exf_check_range
1842      - unit change in exf_init_runoff from [m/year] to [m/s]
1843    o mdsio:
1844      - i/o-vector change debugLevel from debLevA to debLevB
1845    
1846    checkpoint56b_post
1847    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1848      is called from DO_THE_MODEL_IO
1849      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1850      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1851      - clean up PTRACERS_WRITE_TIMEAVE a little
1852    o add another verification experiment that tests both the cfc-pkg and
1853      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1854      reactive tendencies treated inline with regular timestepping
1855    o testreport previously did a lousy job of comparing small numbers, so
1856      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1857      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1858      testreport.
1859    o ptracers_monitor: bug fix for MPI
1860    
1861    checkpoint56a_post
1862    o GCHEM: finish reorganizating the package
1863      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1864        (introduces another 3D-array for each passive tracer, but only if
1865        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1866        gchemTendency is not needed because the timestep is done separately)
1867      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1868      - GCHEM is now---more or less cleanly---separate from PTRACERS
1869      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1870        so clear to me how that should be done in a general way.
1871    o CFC: improve formatting of output in CFC_ATMOS
1872    o PTRACERS:
1873      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1874        that ALL experiments with ptracers enable can be checked. This makes
1875        GCHEM_MONITOR obsolete.
1876      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1877        monitorFreq
1878      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1879    o add PTRACERS (PTR0[1-5]) to testreport output
1880    o exf_check_range:
1881      * default changed to .TRUE.
1882      * will check values for niter0 if debLevA, every timestep if debLevB
1883      * STOP in exf_check_range if 'out of range'
1884      * range chosen generous to allow for potential extema
1885      TBD: a version with stricter range
1886           permitted range would be runtime parameters
1887  o GMredi:  o GMredi:
1888    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1889    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1892  o GCHEM:
1892    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1893      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1894    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1895      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1896        this flag is now only visible within GCHEM-pkg routines.
1897      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1898        be replaced by a 3D array that is computed before thermodynamics; for
1899        this, the tracer ID iTracer had to be included into the parameter list
1900        of ptracers_forcing
1901      - set up forward_step to call gchem_forcing, that will replace
1902        gchem_forcing_int in ptracers_forcing
1903      - cleaning up
1904  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1905    
1906  checkpoint56  checkpoint56

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