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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.992 by dimitri, Thu May 22 01:59:50 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/thsice/thsice_ini_vars.F added default initial values so that thermodynamics
8      sea ice solver does not blow up when some initial fields are missing.
9    o move from external_forcing_surf.F to ini_forcing.F
10      the p-coord. hack consisting in using pLoad to set phi0surf ;
11      update output of tutorial_global_oce_in_p (affected @ truncation level).
12    o Freshen up a bit hs94.1x64x5, notably:
13      remove rotationPeriod and tRef=5*0. (adjoint only), and add exactConserv=.TRUE.
14    o pkg/generic_advdiff:
15      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
16      applies to files where Temperature & Salinity 2nd Order moments are used.
17    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
18      this uses a dynamically allocated internal state data structure
19      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
20      and requires a fortran 90 compiler
21    
22    checkpoint59q
23    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
24       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
25    o Refresh tutorial_global_oce_biogeo, notably:
26      - change bathymetry (put back seamounts in ACC, use hFacs)
27      - change EOS (POLY3 --> JMD95Z)
28      - use Bryan-Lewis vertical diffusivity
29      - use multidimensional advection
30      - remove old virtual virtual in dic pkg, now done through ptracer pkg
31      - change a couple of parameters in dic pkg
32    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
33    o pkg/obcs: change default to OBCSfixTopo = .true.,
34      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
35      - replace "debugMode" with "debugLevel .GE. debLevB"
36    o implementation of TAF directives for gchem,cfc,dic
37    o remove "exp5" (replaced by tutorial_deep_convection).
38    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
39      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
40      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
41      --> changes results in exp4, seaice_obcs
42    o tutorial_deep_convection :
43      update the set-up and increase resolution and domain size ; start
44      from pseudo initial conditions = output at t=120mn in order to see
45      something happening when running testreport.
46    o pkg/seaice: add os7mp as an advection scheme
47                  add check for advection schemes
48                  add a flag for restoring T and S underneath sea ice
49    o pkg/my82: add netcdf-support and diagnostics
50    o thsice pkg:
51      - Now hsMax limits snow height by turning it into ice following
52        flooding scheme (and now conserving energy)
53      - Slight rewriting of the formula in thsice_calc_thick.F
54      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
55      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
56    
57    checkpoint59p
58    o gchem / dic / cfc :
59      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
60      - add new parameter files: "data.dic" & "data.cfc" ;
61      - various re-arrangement in initialisation & header file ;
62      - fix tutorial_global_oce_biogeo for multi-threaded test.
63    o pkg/dic: test for "pickup_dic" file when restarting ;
64      if no pickup-file, can restart with a re-initialised pH (same as it did
65      before) providing pickupStrictlyMatch is set to False.
66    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
67      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
68    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
69      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
70    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
71     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
72       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
73    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
74       scheme to use for vorticty-term ;
75     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
76       (with default selectVortScheme, return to original discretisation)
77     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
78    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
79    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
80      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
81      also fix diagnostics VISCAHW & VISCA4W.
82    
83    checkpoint59o
84    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
85    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
86      move a few statemens out the main loop into separate loops
87    o pkg/shelfice:
88      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
89        (kg/m^2/s), does not break tests, because in verification/isomip,
90        rhoConstFresh=rhoConst (by accident)
91      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
92      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
93        new file model/src/seawater.F, so that they are available for all pkgs.
94      - convert potential temperature into in-situ temperature. This changes the
95        isomip tests => update tests
96    o add a flag writePickupAtEnd (default=true) to be able to suppress
97      writing a pickup at the last timestep
98    o tools/mpack-1.6 :
99      - disable automake (not working) and autoconf (not needed).
100      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
101        also cleaner with much less compilation warnings.
102    o pkg/profiles:
103      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
104      (for "less than 32 characters name" compiler requirement)
105    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
106      conditions that have a different sampling frequency than S/T/U/V obcs
107    o pkg/diagnostics (stats-diags):
108      - fix global Min/Max in case 1 processor get only empty tiles
109    o genmake2: replace (4 times)
110         make genmake_tc_1.o >> genmake_warnings 2>&1
111      with
112         COMM="$CC $CFLAGS -c genmake_tc_1.c"
113         echo $COMM >> genmake_warnings
114         $COMM >> genmake_warnings 2>&1
115      to make genmake2 always see the value of CC as specified in the optfile.
116    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
117      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
118      - modify verification advect_cs test to test SOM-advection on CS-grid.
119    o pkg/ctrl:
120      - Rewrite of ctrl_map_ini_ecco.F,
121        introducing a generic routine (ctrl_map_ini_gen.F).
122      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
123    
124    checkpoint59n
125    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
126      number in dedicate array "hdiag":
127      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
128        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
129      - many small changes (integer format) for large number of diagnostics
130      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
131        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
132    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
133      usingSphericalGrid, this allows to define the rotated grid coordinates
134      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
135      geographical coordinates according to the inverse of the rotation defined
136      by the Euler angles, so that Coriolis parameter and online-interpolation by
137      exf works with the geographical coordinates on XC/YC/XG/YG.
138      Naturally, this feature does not work with all packages, so some
139      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
140      profiles), because there the coordinates are assumed to be regular
141      spherical grid coordinates.
142    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
143      - introduce isopycnal diffusion coefficient control.
144    o tools/adjoint_options:
145      - additional control vector components.
146    o pkg/mnc: have mnc create marginally meaning full coordinate variables
147      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
148    o pkg/mypackage:
149      - add example of read/write pickup for state-var ;
150      - add entry points to the main code for state-vars diags & write-pickup.
151    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
152      transitions for useExfYearlyFields
153      - add new subroutine that determines the file to read from for
154        use*YearlyFields = .TRUE. and .FALSE.
155      - add a verification experiment to global_with_exf that tests
156        useExfYearlyFields with USE_EXF_INTERPOLATION defined
157    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
158      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
159      subroutines (which could be generated from a template, because they are
160      almost identical), for now they are included in obcs_prescribe_read.F for
161      simplicity
162    o pkg/exf:
163      - add a little more diagnostic to exf_interp_read (in analogy to
164        mds_read_field, can be turned off with debugLevel < debugLevA=1)
165      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
166        ugly but fast by unrolling short inner loops, inserting a unroll=8
167        directive in routine lagran, and splitting a loop and making do while the
168        outermost loop (the latter requires the intoduction of index arrays)
169    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
170    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
171      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
172    o verification/seaice_obcs: updated for restart test and latest options
173    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
174      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
175      for now this is only available for the C-grid code and also within
176      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
177    
178    checkpoint59m
179    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
180      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
181    o gad_som : fix flux output (& diagnostics) to have same units as other  
182      advection scheme fluxes (was previously multiplied by deltaT).  
183    o added verification/seaice_obcs both to test seaice open boundaries
184      and to provide an example matlab scrpt for generating them
185    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
186    o pkg/salt_plume: clean up salt_plume_frac.F to
187      remove redundancy in PlumeMethod 1 and 4
188    o pkg/kpp: added saltplume diagnostics
189    o pkg/obcs and pkg/seaice:
190      - do not set uice and vice to zero when OB*icefile are unspecified
191      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
192      - moved seaice tracer obcs after call to seaice_growth
193    o pkg/salt_plume: added various options for salt plume depth
194      criterion and for vertical distribution of the salt
195    
196    checkpoint59l
197    o pkg/ptracers: new version of ptracers pickup:
198      read meta file and write only fields which are needed to restart.
199      ( same logic as main pickup file ; also using pickupStrictlyMatch )
200    o pkg/seaice:
201      - add timescale for melting due to warm mixed layer as a means of
202        setting SEAICE_availHeatFrac more conveniently
203      - add a CPP-flag/runtime parameter check for flooding algorithm
204      - reformulated availHeat in seaice_growth.F to be independent of AREA
205    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
206      unit changes
207    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
208    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
209      SX vector computer.
210    o pkg/seaice:
211      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
212        seaice forcing fields can now be read only through pkg/exf
213      - removed some unused halos
214    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
215    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
216      or U/VICE from U/VWIND before computing U/VSTRESS
217    
218    checkpoint59k
219    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
220      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
221    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
222      all experiments pass when compile with un-initialised var. checking option.
223    o added pkg/salt_plume
224    o script to test restart (for now, in MITgcm_contrib/jmc_script)
225    o pkg/seaice: new read/write pickup version.
226      read meta file and write only fields which are needed to restart.
227      ( same logic as main pickup file ; also using pickupStrictlyMatch )
228    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
229    o lab_sea.hb87: modify the domain & update output.hb87.txt :
230      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
231      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
232      process. Fixed here by closing the domain at the Northern boundary.
233    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
234    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
235      a set of consecutive levels in/from a 3-D array.
236    o pkg/ptracers:
237      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
238      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
239    
240    checkpoint59j
241    o in pkgs: dic, obcs, offline, rbcs:
242      standard way to compute coeff. for time interpolation between 2 time reccords
243      which retains full precision (& make results less dependent on compiler).
244      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
245    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
246      packages instead of reading ice cover and wind speed separately
247    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
248     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
249      to allow to compile customized code before the update)
250    o cleaning-up:
251      - fix CPP instruction syntax in pkg/obcs
252      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
253        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
254      - fix some threads issue in IO parts.
255    o pkg/dic:
256      - add tons of "_d 0" (--> much better testreports !)
257       and then update outputs of tutorial_global_oce_biogeo
258    o pkg/mom_fluxform:
259      add a special version of momentum advection intended to conserve momentum
260      next to a bathymetry step or a coastline edge. (default = off = #undef)
261    o new read/write pickup version:
262      - for now, only implemented for main (mdsio) pickup file.
263      - write out only what is needed to restart; merge pickup_nh , pickup_ph
264        and main pickup together.
265      - read meta file; read only what is needed to restart; stop if a field
266        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
267        if it make sense (even if the restart is not perfect).
268      - if no meta file, assume that pickup to read corresponds exactly to
269        a pickup that would currently be written.
270      - read pickup written in the old format (until checkpoint59i) if it
271        recognizes an old meta file (no field-list).
272      - add a meta file in exp. which starts from a pickup: 2 cases:
273        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
274         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
275        b) a meta file describing the content of the associated pickup file
276         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
277    o pkg/mdsio & pkg/rw:
278      - new routine to read a meta file ; new set of routine to read
279        Multiple-fields file (with meta file).
280    o added open boundary conditions capability for seaice
281        HSNOW, HSALT, UICE, and VICE
282    
283    checkpoint59i
284    o adjoint:
285      * fix multiDimAdvection adjoint
286        (partial recomputation problem by TAF for fVerT(:,:,kDown)
287        and comlev1 size definition (maxpass vs. max. number of tracers)
288      * verification/global_ocean.90x45x15 adjoint now tests
289        NLFS and multiDimAdvection using DST3 (=30)
290      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
291    o pkg/kpp: add "_d 0" to real constant (if missing);
292      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
293      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
294    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
295      for internal parameters related to restart process (formerly from PARAMS.h)
296      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
297    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
298      as argument. (only atm2d & obcs write_pickup have not yet been updated)
299    o pkg/monitor:
300      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
301      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
302      - account for deep Atmosphere factor and density factor (anelastic)
303    o added open boundary conditions capability for seaice HEFF and AREA
304    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
305      thermodynamics
306      - requires a little reorganization, which affects the testreport results
307        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
308        so that now the conservative form is tested
309      - add a few comments
310    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
311    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
312    o add new diagnostics to seaice: advective, diffusive fluxes (only for
313      multidim-advection, for scheme 2 they are not filled) and transports,
314      thermodynamic growth rates
315    o change units of EmPmR (inside the code, + within coupling interface)
316      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
317      Affects results @ truncation level (cg2d match) and update output of
318       experiments: lab_sea(6), global_ocean.90x40x15(10),
319      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
320      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
321      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
322      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
323    
324    checkpoint59h
325    o pkg/exf:
326      - improve vectorization by moving if-statement out of loops in
327        exf_mapfields, exf_radiation
328      - exf_bulkformulae.F: introduce 2D fields and vectorize code
329    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
330    o testreport:
331      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
332        monitor & update offline_exf_seaice exp. output.
333      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
334    o pkg/seaice:
335      - bug fix in the evp solver: boundary conditions were affected be
336        masking of zMax/zMin (changes results)
337      - minor bug fix in boundary conditions in seaice_calc_strainrates
338        (changes results for no_slip)
339      - seaice_lsr.F: make interpolation of eta dependent on boundaries
340      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
341      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
342        stress formulation and no-slip boundary conditions
343    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
344      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
345    o pkg/seaice: a first HSALT time stepping equation has been checked in
346    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
347      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
348      without requiring DO-IF statements
349    o pkg/thsice:
350      use continuous power-law function for partition of energy between lateral
351      melting/freezing and thinning/thickening ; old code using step function
352      still available with #undef THSICE_FRACEN_POWERLAW
353      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
354    o testreport: change AD testing : check against results/output_adm.txt
355      using same scripts as for forward test.
356    
357    checkpoint59g
358    o adjoint testing: in preparation for changing testreport:
359      - output format: cost and grad written on separated lines
360      - ad output results in directory "results" (instead of "results_ad")
361    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
362    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
363    o pkg/ecco: allow user defined cost function contributions
364    o testreport:
365      Allow to choose (per experiment) the list of tested output variables
366       and the main variable (used to issue a pass/FAIL ) ;
367      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
368      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
369      Also modify printing of summary:
370       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
371       b) echo the list of tested variables in the individual summary.txt of
372          each experiment.
373    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
374      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
375      (but still depend on the tile decompostion of the domain).
376    o pkg/seaice: change a discretization detail to make the B-grid code
377      "more symmetric". This change is likely to remove all "ridges/leads" that
378      where quasi-aligned with the grid in B-grid solutions. It may also be
379      the solution to the stress coupling issues with the B-grid.
380    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
381      remove .cvsignore from input dir. (since testreport no longer run here).
382    o pkg/thsice:
383     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
384     - fix reshaping of sea-ice just after advection:
385       melt all the ice only if ice-volume is too small.
386     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
387       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
388     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
389    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
390      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
391    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
392      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
393      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
394      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
395      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
396      -> update output.txt
397    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
398     this affects truncation error: -> update output.txt of exp:
399      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
400      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
401    
402    checkpoint59f
403    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
404    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
405      a bounded range (in forward mode)
406    o pkg/ecco, ctrl, autodiff and mom_common:
407     internal parameter controls, completements of implementations
408    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
409    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
410      (not seem any difference in testing results).
411    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
412       at face corners.
413    o pkg/generic_advdiff:
414     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
415      loop range indices for computing vertical advection tendency
416      and do the calculation in the interior only (no overlap) ;
417      for now, only implemented for SOM advection (to save CPU time).
418     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
419    o exch2 adjoint
420      First set of changes:
421      - add exch2 hand-written adjoint templates
422      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
423        This will require cleanup in pkg/autodiff/*.F
424        (changed routines currently kept separate in verif. code/)
425      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
426        that used to hide exch2 or cubed-sphere specific code
427        (commented via 'cph-exch2')
428    o pkg/seaice
429      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
430    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
431       output of global_ocean.cs32x15.thsice .
432    
433    checkpoint59e
434    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
435      for B-grid vector (not yet tested) and C-grid vector (<- only used
436      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
437    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
438      (#ifdef ALLOW_SALT_PLUME)
439    o gather_2d/scatter_2d: removed halo regions
440    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
441      scheme and the corresponding test case (under front_relax dir). For now,
442      only available with Skew-flux form and not yet tested in realistic set-up.
443      adjoint: store directives updated, but gradient checks deteriorated,
444      so maybe GM/Redi adjoint is now broken.
445    o seaice adjoint
446      * add AREA, HEFF, HSNOW as control variable
447        (should not change lab_sea results)
448      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
449    o pkg/seaice:
450      * added computation of saltFlux in seaice_growth;
451        For time being, sea ice salinity is assumed constant
452        contribution of snow flooding to freshening of sea ice is neglected.
453        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
454        defaults to 0.0 in order to maintain backward compatibility.
455        Typical values for SEAICE_salinity are 4 to 10 g/kg.
456      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
457      * added SEAICE_availHeatFrac, which specifies fraction of surface level
458        heat content used to melt or grow ice
459      * commented out cap of HICE: it helps keep ice thinner
460      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
461      * applied OBCS T/S mask to HEFFM sea ice mask
462    
463    checkpoint59d
464    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
465     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
466     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
467    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
468     and change default value of parameter "GM_Small_Number";
469     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
470       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
471       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
472    o pkg/ecco: cost function when applying pkg/smooth to controls
473    o pkg/ctrl: add forcingPrecond run time parameter
474    o pkg/seaice:
475     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
476     - fix bug in metric terms of u-equation in LSR solver (implicit part),
477       changes verification/lab_sea
478     - rearrange implicit part of u-equation in LSR solver to make it easier to
479       read, understand, and debug. This causes changes at the truncation level.
480     - fix (serious) bug in the boundary conditions (sign error in the implicit
481       part) of the LSR solver. Changes all LSR results.
482     - fixed problem with HSNOW initialization to avoid thick snow when AREA
483       is initilized with small values - does not change lab_sea results.
484     - added HsnowFile initialization capability
485    o pkg/smooth: addition to model/src and pkg/ctrl so allow
486     initialization of pkg/smooth and application to control vector
487    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
488    o dependencies: pkg/profiles requires pkg/cal
489    o pkg/profiles:
490     - added option ALLOW_PROFILES_GENERICGRID
491         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
492         that interpolation information (grid points and coefficients) is provided
493         within the netcdf input files.
494         -> sample matlab scripts can be found in MITgcm_contrib/gael
495         that allow you to prepare netcdf input files.
496     - also modified: cleaner include statements, cleaner error print statements,
497       cleaner stops when error, and more tests of the netcdf input files consistency.
498    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
499    o pkg/seaice:
500     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
501       requires a new routine: seaice_diagnostics_fill.F
502     - make sure that seaice does not move if not forced (pressure replacement
503       method, Hibler and Ip, 1995), changes results
504     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
505     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
506       It is turned off by default (=-1.), because it changes the results.
507     - make it possible to read AREA from a file, too.
508    
509    checkpoint59c
510    o add S/R and diagnostics for oceanic mixed-layer depth
511    o move GMRedi call after all vertical mixing schemes (including KPP)
512    o pkg/thsice:
513     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
514      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
515    o pkg/obcs:
516     - bug fix for balance code
517    o pkg/seaice:
518      - allow values of SEAICE_elasticParm > 1
519      - add new parameter SEAICE_evpTauRelax as an alternative
520        to SEAICE_elasticParm
521      - make lsr boundary conditions free slip (by default), changes result
522      - add code for no slip boundary conditions for lsr
523      - set minimum of zeta to zero (and not 4e8) (changes results)
524      - add a cap on AREA after advecting AREA if seaice_growth is not called
525    o change calculation of Visbeck K:
526      - no longer depend on tapering scheme; instead, compute slope (limited
527        by GM_maxSlope). this is equivalent to what was comuted before with
528        clipping or linear tappering.
529      - fix vertical averaging (wrong by 1/2 level)
530      - leave the old version (but will not be maintained) within
531        #ifdef OLD_VISBECK_CALC / #endif
532      - update output of exp. ideal_2D_oce
533    o change error catch in calc_r_star to improve vectorization
534    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
535      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
536    o adjoint:
537      Re-organized adjoint checkpointing according to Matt Mazloff
538      (but with modifs/completions/cleanups)
539      Storing is now bundled into large arrays to optimized I/O
540      (and second step in cleanup of the_main_loop)
541    
542    checkpoint59b
543    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
544      - export/import (between ocean & coupler) fields needed for ocean DIC.
545    o pkg/seaice:
546      - get rid of three more exchanges seaice_calc_viscosities (required
547        different loop boundaries in seaice_lsr and seaice_ocean_stress)
548      - bug fix in seaice_ocean_stress (update of lab_sea required)
549      - reduce loop boundaries to necessary minimum also in seaice_evp
550      - go back to the old way of computing deltaC/Z as the adjoint likes that
551        better
552    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
553      passive tracer to an Age Tracer) + update output.txt
554    o pkg/exf:
555      - implement A-grid / C-grid selection for wind-stress input files.
556      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
557      for now, in exf_bulk_largeyeager04.F only :
558      - change implementation for case where windspeed + 2. components wind-stress
559        are read-in. AND use rhoConstFresh to convert evap.
560    o pkg/seaice:
561      - use correct EXCH_UV for wind-forcing (on A-grid).
562      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
563        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
564    o pkg/exf:
565      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
566      EXF_INTERPOLATION:
567      - merge global_with_exf/code version of exf_interp_read.F
568        to the main code ;
569      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
570        reading the file ; Important: This options needs to be defined to recover
571        previous code.
572        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
573      - no longer loose real*8 precision along the way when using exf_iprec=64.
574    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
575      - change discretisation of evp-solver in order to avoid another exchange
576        (changes lab_sea) and clean up a little
577      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
578        help the adjoint (this also changes the results slightly)
579      - add a few "_d 0" where they had been missing in seaice_evp.F
580      - cleaning up: remove unused seaice_calc_rhs.F
581    o pkg/exf: some cleaning-up:
582      - change various "constants" into runtime parameters
583      - cleaned-up Large&Yeager04 routine which should eventually
584        replace exf_bulkformulae.F (changed names of S/R and CPP)
585        and merged various ALLOW_ATM_WIND options
586     only used with thsice pkg (in thsice_get_exf.F):
587      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
588        which are used when useStabilityFct_overIce=TRUE (= the default)
589      - change default values of ice & snow emissivity and scale downward LW
590        by ice & snow emissivity.
591    o pkg/thsice:
592     fix few little problems, in thsice_calc_thickn.F:
593      - growth vertically (and not laterally) if iceFrac == iceMaskMax
594      - melt only laterally if hIce < hThinIce (as the comments say)
595      and in thsice_extend.F:
596      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
597      - start to form ice as soon as the minimum ice-volume is reachable.
598     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
599      and cpl_aim+ocn
600    o pkg/kpp
601     - move computation of surface related input fields to KPP into a new
602       subroutine kpp_forcing_surf.F
603     - remove wrong (within bi,bj loops) EXCH calls.
604     - little cleaning (add argument myThid in last position, cvs header ...)
605     - for now, fix conservation problem by exchanging KPPviscAz (may not
606       be the best fix)
607    o pkg/seaice
608     - check for inconsistent evp parameter/cpp-flag combination
609     - remove leftover errIO flat for obsolete name list error handling
610    o OpenAD
611     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
612    
613    checkpoint59a
614    o pkg/seaice: some parameter clarifications and a little bit of clean up
615    o pkg/thsice: rename run-time parameters:
616       himin       -> hIceMin
617       himin0      -> hThinIce
618       hihig       -> hThickIce
619       i0          -> i0swFrac
620       transCoef   -> bMeltCoef
621       frac_energy -> fracMelting
622      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
623       with default values (for now) that do not change the results.
624      remove old version of thsice vars advection in pkg/seaice.
625    o in FFIELDS.h:
626      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
627      - make pLoad & sIceLoad always available (but still only used if
628         ATMOSPHERIC_LOADING is #define).
629    o pkg/kpp: replaced _KPP_RL with _RL
630    o bug fixes for vertical diffusivity computations when both KPP and
631        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
632        are no longer updating the vertical diffusivity array
633        (passed as argument) but are (re-) setting those arrays.
634    o pkg/seaice: fix bug in evp solver, while doing that
635      - change (improve?) discretization of stress computations for both
636        cgrid-lsr and evp solver
637      - add a new routine to compute strain rates
638      - the above changes lab_sea results
639      - add no slip conditions for evp solver (off by default), lsr-version
640        may follow
641      - fix exchange for shear at Z-points (does not change lab_sea)
642      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
643        (to force the user to pick a time step since there is not "safe" way
644        of choosing it)
645      - add principal stress diagnostics
646      - rearrange fields for evp a little to avoid having to call a: too many
647        exchanges and b: exchanges for stress trensor components which we do
648        not have.
649      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
650        of evp, complete rewrite for lsr case (latter is does not yet work
651        in all cases)
652    o pkg/kpp: add code to have mixing in shelf ice caverns
653      - add myThid to all kpp routines (long overdue)
654    
655    checkpoint59
656    o pkg/exf:
657      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
658        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
659      - move exf header files from lower_case.h to UPPER_CASE.h ;
660        add missing cvs Header & Name
661      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
662      - add namelist param. selectStressGridPosition, exf_monFreq
663      - retire many _CLIM routines, and remove data.exf_clim
664        + params moved to data.exf
665        + climsst, climsss now handled by exf_set_gen, i.e.
666          climss?period=0 refers to constant field,
667          climss?period=-12 to monthly forcing
668      - split up namelists in data.exf
669    o pkg/seaice:
670      - remove seaice_exch and seaice_exch_uv
671      - remove superfluous exchange of theta
672      - add myThid to seaice_budget_ocean/ice
673      - add new interface for atmospheric wind forcing (C-grid only)
674        + new routine
675        + two new field (taux, tauy for stress over ice)
676        + removed one global field (DAIRN) for C-grid case only
677    o pkg/thsise
678      - 2nd set of modifs for thsice adjoint in conjunction with exf
679    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
680    
681    checkpoint58y_post
682    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
683      vertical diffusivity, similar to that in MOM4; turned on using
684      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
685      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
686    o Added capability for 3D specification of background vertical diffusion
687      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
688      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
689      "data" file that contains the 3D vertical diffusivity coefficients.
690    o ice dynamics (pkg/seaice) with thsice thermodynamics:
691      - add code within pkg thsice to advect & diffuse sea-ice fields
692      similar to (and will replace) what has been added in  seaice_advdiff.F,
693      but: - conserving Mass, Heat & Salt.
694           - better when using non-linear advection scheme (not yet fully tested)
695           - can also be used in atmospheric set-up (for now, only the diffusion).
696    
697    checkpoint58x_post
698    o IO option for global-file compact format:
699      - add options when generating topology (utils/exch2/matlab-topology-generator)
700      - add I/O capability (pkg/mdsio).
701      - adapt utils/matlab/rdmds.m to read this format.
702      for now long-line format not yet supported by pkg/mdsio (& exch2).
703    o shelfice: add a few diagnostics
704    
705    checkpoint58w_post
706    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
707      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
708      (and replace horiVertRatio in NH code).
709      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
710                         and tutorial_plume_on_slope (sensitive to truncation)
711    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
712      directly to drive seaice model (C-grid only)
713    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
714     - reintroduce computation of wind from stress,
715     - compute tau (in exf_bulkformulae.F) from windstress averaged to
716       mass points to avoid tau = 0
717     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
718    o rdmnc.m: make it work with "global" files created with gluemnc
719    o rdmnc.m : some improvements in dealing with singleton dimension
720      (tested on all testreport mnc output files).
721    o genmake2: disable pkg/profiles if netcdf test fails.
722    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
723    o move call to cal_readparms up to make calendar parameters/variable available
724      to all packages
725    
726    checkpoint58v_post
727    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
728      useDynP_inEos_Zc tested.
729    o pkg/exf: changes to properly interpolate/mask/scale initial fields
730    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
731      and portions thereof.  See read_cs.txt for description and examples.
732    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
733      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
734      following the great-circle arc between those 2 points.
735    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
736      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
737    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
738     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
739     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
740     - still needs work (not working with some options ; efficiency to improve)
741       and serious testing.
742     - use this scheme for temperature & salinity in 2 advection test exp.:
743       advect_xy & advect_xz, respectively.
744    
745    checkpoint58u_post
746    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
747    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
748    o testreport: add option "-skipdir" to skip some test.
749    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
750      momentum calculation.
751    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
752    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
753      remove checkpoint.F and the_correction_step.F (no longer used);
754      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
755    o add option (linFSConserveTr) to correct for tracer source/sink due to
756      Linear Free surface
757    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
758    o pkg/thsice: fix reading mnc-pickups
759    
760    checkpoint58t_post
761    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
762    o pkg/mdsio:
763     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
764       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
765       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
766     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
767     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
768       either MDS_READ_FIELD or MDS_WRITE_FIELD )
769     - new S/R (to replace MDSWRITEMETA), which allows to write more
770       informations (variable names, time ...) to meta files.
771     - modify rdmds.m to give back the meta file content.
772    o pkg/diagnostics: change vertical interpolation to be safer, and more
773       flexible (define p-levels to interpolate to in data.diagnostics);
774      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
775       diagnostic pointer.
776    o pkg/seaice: more cleaning up of seaice_growth, added many comments
777    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
778    o fix multi-category seaice:
779     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
780       SEAICE_MULTICATEGORY
781     - fix short wave heat flux
782    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
783       and allow to use EVP solver. Change forward lab_sea: test both EVP
784       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
785    o Initial check-in of lab_sea adjoint
786      (very similar to natl_box_adjoint/code_seaice)
787      * used C-grid and EVP solver
788      * used KPP, GM/Redi
789      * uses inAdExact=.TRUE.
790      * gradient checks fail for both ADM and TLM
791        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
792        f.d. gradients actually seem more problematic than ADM, TLM gradients;
793        issue is related to forward mismatch between g77 an ifort
794    o pkg/seaice: overhaul of thermodynamics
795     - growth.F and groatb.F are replaced by new routine seaice_growth.F
796     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
797     - move a few global fields out of SEAICE.h into seaice_growth.F and
798       make them 2D (FICE/QNETO/ ...)
799     - remove FO (it is the same as QNETO)
800     - introduce a few local fields to avoid modifying external fields such
801       as atemp, etc.
802    
803    checkpoint58s_post
804    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
805      changed exf_set_gen.F so that
806        genperiod=0 means input file is one time-constant field and
807        genperiod=-12 means input file contains 12 monthly means
808    o CG2D: use pre-computed solver main-diagonal (stored in common block);
809      this affects truncation error ; generate new output file for exp. which
810      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
811        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
812        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
813        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
814        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
815        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
816    o start implementation of deep-atmosphere and anelastic formulation
817    o verification: remove 2nd copy of input files and use script "prepare_run"
818      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
819    o mom_common/vecinv/fluxform: fix a few initialisation isssues
820    o profiles: fix for multithreaded case
821    
822    o diagnostics: rename few diags:
823      s/'PRESSURE'/'RCENTER '/g
824      s/'TICE    '/'oceFreez'/g
825      s/'TAUX    '/'oceTAUX '/g
826      s/'TAUY    '/'oceTAUY '/g
827      s/'SWFLUX  '/'oceQsw  '/g
828      s/DIFx/DFxE/g
829      s/DIFy/DFyE/g
830      and add few ocean-forcing diagnostics:
831      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
832    o modifications to pkg/seaice/growth.F and budget.F, which change results of
833      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
834      as actual snow thickness.  It now refers everywhere to effective snow
835      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
836    
837    checkpoint58r_post
838    o modifications to pkg/seaice/growth.F, which change results of
839      lab_sea experiment: fixes pertain to melting snow over open water, to
840      masking EVAP under sea ice, and to using the correct AREA variable for
841      computations of EVAP, PRECIP, HSNOW, and GHEFF
842    o add ability to read bathy, salt, and theta using MNC (off by def)
843    o add flooding algorithm and advection of HSNOW for pkg/seaice;
844      both are turned off by default and do no change any results
845    o seaice advection with pkg/thsice: a step toward the use of non-linear
846      advection scheme, but #ifdef or commented out for now (requires more EXCH).
847    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
848      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
849      in natl_box (affects results @ truncation level: update output.txt)
850    o multi-threading and IO:
851      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
852      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
853        (needed to work with SingleCpuIO): tested in all verif. exp.
854    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
855      affects the results (but none of the verification test uses this scheme).
856    o Adding some pkg/diagnostics capability to pkg/seaice
857      (will certainly be subject to changes)
858    o ctrl: adding new control variables:
859      lwflux, lwdown, evap, snowprecip, apressure, runoff
860    
861    checkpoint58q_post
862    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
863      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
864      high_res_cube configuration by 4% on Columbia.
865    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
866      add (in global_with_exf/code) a version of EXF_INTERP_READ without
867      dynamical allocation (seems to work in multi-threaded).
868    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
869      single CPU io) so that TAF does not have to see EESUPPORT.h
870    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
871    
872    checkpoint58p_post
873    o obcs: stop if obcs is used with useCDscheme = .true.
874    o shelfice:
875     - fix a sign error so that no slip at shelfice interface works
876     - remove stop for combination non-hydrostatic code and shelfice. That does
877       not mean, that the results are correct, but at least they are numerically
878       stable
879    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
880    o added adjoint exch routined for all exch*3d* routines
881      and updated flow directives
882    
883    checkpoint58o_post
884    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
885      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
886    o change controling S/R for writing pickup file (new S/R do_write_pickup)
887      and clean-up reading/writing of pickup files.
888    o fix local version of read/write pickup (NH part) in rotating_tank/code
889    o simplify EXCH interface:
890     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
891     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
892    o added the regrid package
893    o shelfice:
894     - add a simple boundary layer scheme to reduce noise
895     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
896    
897    checkpoint58n_post
898    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
899       local variable (not in common block).
900    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
901      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
902      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
903        to work with SingleCpuIO.
904    o add "_d 0" to real constant of pkg/cfc subroutines ;
905       update exp. cfc_exemple & tutorial_cfc_offline output files.
906    o multi-threading and IO:
907      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
908        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
909      - barrier before and after reading.
910      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
911      - avoid using MDS_WRITELOCAL for LAND pkg output.
912      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
913        common-block variables ; Allows multi-threading with master-thread IO.
914    o change default MAX_NO_THREADS from 32 to 4 ;
915      and stop cleanly when MAX_NO_THREADS is too small.
916    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
917    
918    checkpoint58m_post
919    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
920       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
921    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
922       keep global_ocean.90x40x15 (for AD testing) with former secondary test
923       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
924    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
925        add MITgcm_tutorials (= code + all the tutorials)
926    o ecco, option to compute cost for total ssh (mean+anom)
927    o consistent with addition of ptracer and ssh in pkg/profiles
928    o profiles: adding ptracer and ssh
929    o testreport: change multi-test output-file name
930      (from output.txt.{name} to output.{name}.txt)
931    o profiles: now ok for mutli-tiles case
932    o seaice: add 4 parameters for different advection schemes for area,
933      (effective) seaice thickness, enthalphy, and snow height. Their default
934      is the standard parameter SEAICEadvScheme
935    o calc_gw:
936     - add cosFacU in zonal viscous flux (harmonic.visc.).
937     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
938       of tutorial_plume_on_slope.
939    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
940    o calc_gw: true flux-form, account for horizontal grid spacing.
941      update rotating_tank results, but not plume_on_slope (affected at
942      truncation level, 11 digits).
943    
944    checkpoint58l_post
945    o calc_gw:
946     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
947     - remove side-drag for now (need to fix it); update plume_on_slope results.
948     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
949    o commit code to make SST/SSS weights spatially variable
950      (based on either variable in-situ or variable initial T/S weights)
951    o pkg/ecco:
952      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
953        now based on horizontally varying weights wthetaLev, wsaltLev
954      * cost_averagesflags now returns year indices in addition to day, month
955      * sflux balance is performed on annual basis
956        (sflxumm, sfluxmm2, bal_sfluxmm)
957      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
958        including separate counting and multipliers
959    o pkg/rbcs
960      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
961    
962    checkpoint58k_post
963    o testreport:
964     - always build in dir. "build" (if not there, mkdir build instead of building
965       & running in input)
966     - run in dir run (if it exists), in build otherwise.
967     - call prepare_run (if input/prepare_run exists)
968     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
969    o pkg/exf modifications to interpolation and rotation routines for more
970       reasonable treatment of North Pole singularity: for tracers North Pole
971       value is set to northernmost zonal-mean value, for zonal velocity it is
972       set to zero, and for meridional velocity it is set to northernmost value.
973    o pkg/exf/exf_check_range.F
974     - add tile index to diagnostics and move stop statement to the very
975       end of the routine.
976    o pkg/diagnostics: (diagnostics_main_init.F)
977      define title of isomorphic variables according to the current config.
978    o pkg/thsice with pkg/seaice dynamics:
979    - fix domain of computation (interior only, required for exf) and do exchanges
980    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
981    o towards a standard way of dealing with multi-threading in MONITOR
982      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
983    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
984       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
985    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
986    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
987    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
988       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
989    o tracer advection:
990     - clean-up and simplify calc_common_factors.F
991     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
992       advection subroutine (but still not used within DST advection S/R)
993    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
994    
995    checkpoint58j_post
996    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
997      from file (collects calls previously in FORWARD_STEP)
998    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
999    o adjoint store dir. adjusted accordingly
1000    o genmake2
1001      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1002    
1003    checkpoint58i_post
1004    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1005      on wind stress (SEAICEstressFactor defaults to 1.)
1006    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1007      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1008    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1009      on CS-grid: no longer loosing mass.
1010    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1011    o pkg/ggl90: fix sloppy output and fix a bug
1012    o pkg/seaice: added SEAICEuseEVPpickup parameter
1013      - Set to false in order to start EVP solver with
1014        non-EVP pickup files when using SEAICEuseEVP
1015      - fix sign error in diffusion in seaice_calc_rhs
1016    
1017    checkpoint58h_post
1018    * Modifications for bottom topography control
1019      o replace hFacC by _hFacC at various places
1020      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1021      o add non-self-adjoint cg2d_nsa
1022      o update autodiff support routines
1023      o re-initialise hfac after ctrl_depth_ini
1024      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1025    * Adding verification for 5x5 box (4-layer) bottom topography control
1026    
1027    checkpoint58g_post
1028    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1029       used for mean seasonal cycle, mean diurnal cycle); add an example
1030       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1031    o pkg/ggl90:
1032      - add parameter (minimum surface kinetic energy)
1033      - fix bug (avoiding division by zero)
1034    o couple pkg/thsice to pkg/seaice:
1035      - modify advection in seaice to accomodate new scalar fields to be advected
1036      - only muliDimAdection scheme work with seaice/thsice
1037      - mapping of thsice-variables to seaice-variables, back and forth
1038      - does not break the verification experiments, but does not give the
1039        desired results either
1040    o pkg/seaice
1041      - make (default) second order advection a bit less confusing?
1042    
1043    checkpoint58f_post
1044    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1045      to pkg/seaice):
1046      - new routines thsice_map_exf and thsice_get_exf provide the interface
1047      - add an additional formal parameter to thsice_solve4temp
1048    o pkg/exf:
1049      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1050      - correct Stefan-Boltzmann constant
1051      - new parameter for longwave surface emittance
1052      - separate some stuff from exf_bulkformulae into new routines  
1053        exf_radiation, exf_wind
1054      - add new parameters and constants: longwave emissivity for ocean, ice
1055        and snow, evaporation parameters over ice
1056      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1057        either wind from stress or stress from wind
1058    o pkg/thSIce:
1059    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1060    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1061       and THSICE_CALC_THICKN
1062    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1063    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1064      to make debugging easier.
1065    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1066    o pkg/bulk_force:
1067      - clean-up comments and parameters ;
1068      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1069    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1070      generate new output for test-experiment: aim.5l_cs.thSI
1071    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1072      testreport accordingly
1073    
1074    checkpoint58e_post
1075    o SEAICE_CGRID adjoint done
1076    o R_STAR adjoint implemented.
1077      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1078      * need to sort out init. of h0facc, etc.
1079    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1080      to be able to use it in pure forward.
1081    
1082    checkpoint58d_post
1083    o upgrade simple test-experiment to tutorial example:
1084     step.1: duplicate the experiment and (step.2) will remove the old copy.
1085      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1086      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1087      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1088      tutorial_global_oce_biogeo    <- copy of dic_example
1089      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1090      tutorial_plume_on_slope       <- copy of plume_on_slope
1091      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1092      tutorial_global_oce_optim     <- empty for now (David ?)
1093      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1094     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1095    o correct a sign problem in cost_scat.F
1096    o obcs and ptracers: fix boundary conditions for advections schemes
1097      with larger stencil
1098    o thsice adjoint: start
1099    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1100      completeness
1101    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1102      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1103    o ptracers adjoint:
1104      * avoid extensive recomputatations
1105      * fix missing re-init. of gptr (missed by TAF)
1106    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1107      me to turn off the excessive output to STDOUT that this package produces
1108    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1109      and add those terms in Vector-Invariant formulation.
1110    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1111      if the control period (xx_hfluxperiod etc) is 0
1112    o in profiles pkg, clean routines and fix details
1113    o in ecco pkg, reading ssh data:
1114      fix problem in case the model does not start at iter0=0
1115    o fix mnc-pickup/restart for ptracers
1116    o new package prifiles:
1117      code to compute profile-based cost by Gael Forget
1118      (modifs in ecco, ctrl, autodiff)
1119    o Benign bug fix in initialization (spotted by M. Mazloff) of
1120      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1121    
1122    checkpoint58c_post
1123    o adjoint: finish NLFS adjoint and provide reference output in
1124      verification/global_ocean.90x40x15/results_ad_nlfs
1125    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1126      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1127      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1128      with SEAICE_CGRID defined.
1129    o move calendarDumps from "data" to "data.cal" and clean-up the code
1130      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1131    o add useEXF & useCAL flags (for now, set in hard-coded way)
1132    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1133      (were missing in NH mode, and wrong in quasihydrostatic mode).
1134      waiting for Chris updated version of calc_gw to add those CALLs.
1135    o fix bug in quasihydrostatic S/R ;
1136      add a test for this option: global_ocean.90x40x15.qshyd
1137    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1138      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1139    o add on/off flag useOffLine for package OFFLINE
1140    o seaice:
1141      - modify advection so that it works also on the C-grid
1142      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1143        problem in multi-tile runs with C-grid
1144      - add flags for clipping ice velocities and/or masking solver forcing
1145      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1146        C-grid solver
1147      - added a few comments to seaice_diffusion.F
1148      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1149        are now exclusive)
1150      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1151        required re-ordering the code a little:
1152       + make DAIRN global variable (defined in SEAICE)
1153       + move computation of the viscosities eta and zeta into a new separate
1154         routine (because I need to recompute them in seaice_ocean_stress.F)
1155    
1156    checkpoint58b_post
1157    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1158      update output.txt of exp. aim.5l_cs.thSI
1159    o various mnc cleanups and improvements:
1160      + shrink lookup tables by factor of ~4
1161      + better error reporting when running out of lookup space
1162      + able to handle longer path/file names (up to 500 chars)
1163    o adjoint:
1164      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1165      - TBD: "hidden" mom_vecinv recomp. in dynamics
1166    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1167     (allow to differentiate between forcing components using new integer flags:
1168      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1169     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1170    o ecco
1171      - enable trend removal from SSH anomaly obs.
1172    o adjoint
1173      - a fix for PmEpR when #undef EXACT_CONSERV
1174      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1175      - try to fix "hidden" recomp. in forward_step for NLFS
1176        (NLFS seems broken sometimes after I checked it in)
1177    o seaice:
1178     - add c-grid version of the dynamic solver:
1179       + three new routines that are the c-grid substitute lsr, dynsolver
1180         and ostres
1181       + put a few fields that were local to dynsolver into global common
1182         blocks, so that I can move the computation of stresses etc into
1183         seaice_lsr (saves coding but may break the adjoint).
1184     - replace more hardwired parameters by runtime parameters
1185     - add ice masks that mask the rhs of the implicit solvers where there
1186       is no ice (commented out in seaice_dynsolver, because i am not sure
1187       if this works properly), eventually this should replace the clipping
1188       of ice velocities in seaice_dynsolver to +/-40cm/s.
1189    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1190      include it only where its needed
1191    o move balancing of fluxes before the call of external_forcing_surf
1192    o seaice:
1193      - correct units of turning angles (now they are really in degrees)
1194      - move computation of GWATX/Y out of main routine into dynsolver
1195      - initialize GWATX/Y in seaice_init
1196    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1197      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1198    o seaice: add runtime flags for turning angles (default to zero)
1199    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1200      and trend from exf forcing and ctrl control adjustments
1201    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1202      (since checkpoint57x_post)
1203    o change the default rotation period to 86164.s = the Earth rotation
1204    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1205      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1206    o seaice advection: add code for choosing between the default (2nd order
1207      central differences) and multiDim advection schemes provided by
1208      pkg/generic_advdiff
1209    o seaice:
1210      - removed all references to SEAICE_GRID.h fields from
1211        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1212        (cubed-sphere configuration will change a little)
1213      - grid computations in seaice_init are obsolete now.
1214      - cleaned up code a little so that is easier to read (hopefully).
1215      - added new (better?) discretizations of default advection and diffusion
1216        (turn on with SEAICEuseFluxForm)
1217      - replace 1 in 3d global fields by kSurface in growth.F
1218      
1219    checkpoint58a_post
1220    o seaice:
1221      - bug fix in advect.F
1222    o shelfice:
1223      - separate shelfice load anomaly from pload (breaks with time
1224        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1225        Its default is 0., but it may be computed more cleverly from (unknown)
1226        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1227        done offline. A good approximation of the pressure load anomaly is
1228        necessary to avoid large initial adjustment processes underneath
1229        deep-reaching shelfice.
1230      - small fix in ISOMIP shelfice_thermodynamics
1231      - add more sophisticated thermodynamics of Hellmer (1989), this is
1232        now the default
1233      - give a few constants more intuitive names
1234    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1235      if bulk formulae are used in long integration (especially EmPmR). Turn
1236      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1237      if balancePrintMean, the imbalance that is substracted is printed to
1238      STDOUT.
1239    o fix bug (typo) in obcs_apply_eta.F
1240    o add a new package shelfice which enables us to model the circulation
1241      underneath shelf-ice with draughts of hundreds of meters.
1242     - works
1243     - to do: + include improved thermodynamics
1244              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1245                instead of new field kTopC
1246              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1247                instead of new field R_shelfIce and new code in ini_depth.F
1248                and ini_mask_etc.F?
1249              + adjust vertical mixing schemes?
1250    o seaice pkg:
1251     - add a cpp-flag to include a simple formula for a salinity dependent
1252       freezing point of sea water at the surface
1253     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1254       meridional stresses are now different (and hopefully correct)
1255    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1256       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1257       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1258    o pkg/diagnostics: add options and parameters for regional-statistics
1259       diagnostics ; define regions by reading a region-mask from a file
1260       (might add other options later)
1261    o pkg/bulk_force:
1262     - add option and parameters to use AIM surface-flux formulae.
1263     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1264       others forcing fields (defined in PARM05, parameter file "data") are loaded
1265       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1266     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1267     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1268     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1269       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1270     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1271    
1272    checkpoint58
1273    o add "--embed-source" option to genmake2 which, when the supporting
1274      tools can be compiled (as determined by genmake2) will turn on the
1275      embed_files package which then embeds the entire MITgcm source code
1276      (*.[fFhc] + Makefile) used for the build within the executable
1277      - requested by CNH but off by default
1278      - adds a paltry <9MB to the mitgcmuv executable in most cases
1279      - only writes the output when useEMBEDSRC in eedata is true
1280    o clean up 3-dim. relaxation codes:
1281      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1282      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1283      * Thanks to Tom Haine for testing!
1284    
1285    checkpoint57z_post
1286    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1287      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1288    o fix the pickup behavior for obcs in combination with ptracers
1289    o fix a bug in ptracers_external_fields_load
1290    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1291      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1292    o transfered surface NH pressure to eta field (if exactConserv).
1293    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1294         and update lab_sea output.txt file.
1295    o completing 3-dim. relaxation code: additional term
1296         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1297      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1298      * At compile time, in "EXF_OPTIONS.h" set
1299          #define  ALLOW_CLIMTEMP_RELAXATION
1300          #define  ALLOW_CLIMSALT_RELAXATION
1301      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1302          tauThetaClimRelax3Dim = 15552000.0,
1303          tauSaltClimRelax3Dim  = 15552000.0,
1304      * 3 cases:
1305          1) Use a constant-in-time 3-dim. field
1306          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1307          3) Real-time relax. to time-evolving prescribed field
1308    o Adding Laplacian-type smoothness constraint on
1309      initial and boundary (forcing) controls (ic, bc)
1310      * enable at compile-time via
1311        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1312      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1313      * Absolute scale somewhat unclear so far
1314      * no area weighting was included since no other cost term does so far
1315    
1316    checkpoint57y_post
1317    First step for a NLFS adjoint
1318    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1319    o new init. routines for calc_r_star, calc_surf_dr
1320    o still need to deal with ini_masks_etc
1321    o testreport seemed happy
1322    checkpoint57y_pre
1323    
1324    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1325    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1326    o add new offset feature to offline pkg (plus minor cleanup)
1327    o cfc fixes for final year of integration
1328    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1329      be in GCHEM_OPTIONS).
1330    
1331    checkpoint57x_post
1332    o fix testreport Pb in multiple test experiment.
1333    o cleanup our namelist syntax in verification:
1334      - make it more F95 standards compliant (some work still needed)
1335      - allows the vast majority of our tests to work with gfortran
1336    o Non-Hydrostatic:
1337     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1338     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1339    o Allow to apply AB on T,S rather than on AB(gT,gS):
1340     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1341     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1342       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1343     - need a "clever" read_pickup to restart from the other AB formulation
1344    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1345    o remove some unused variables (reduces number of compiler warnings)
1346    o adjoint
1347      * Disable useVariableViscosity for adjoint for time being
1348        (there are a number of extensive recomputations)
1349      * Initialize certain variables needed for adjoint
1350    
1351    checkpoint57w_post
1352    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1353                 fix the singleCpuIO RS version of MDSWRITEFIELD
1354       and add a WARNING if using globalFiles=T with multi-processors.
1355    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1356      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1357    o tracer advection scheme:
1358      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1359       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1360       was not very convenient).
1361      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1362       (further tests needed for the implicit DST & Flux-Limiter schemes).
1363    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1364      and sRef for convenience, handy, when you want to initialize
1365      ptracers in a large domain with a constant non-zero value. Also,
1366      untangle ptracers_init.F a little.
1367    
1368    checkpoint57v_post
1369    o change dome exp. to use variable viscosity in side-drag terms.
1370    o remove all the files from the cfc_offline test since they are now
1371      incorporated into tutorial_cfc_offline which has been producing
1372      identical results for a few days of testing
1373    o add new parameter: sideDragFactor to enable half-slip-side BC
1374      and change side-drag S/R to use viscosity from mom_calc_visc
1375      (can switch back by setting sideDragFactor=0.); affects results at
1376      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1377       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1378    o vorticity & strain are now computed without masking, to account for
1379      no-slip-side BC in variable viscosity calculation ; mask is applied
1380      anyway later on, before computing advection/coriolis terms.
1381    o modify exp4 to test new obcs support for reading from external files
1382      and for passive tracers
1383    o fix behavior of ptracers_monitor when monitor output is written to a
1384      netcdf-file; still not independent of monitor.F (writes in the same
1385      file).
1386    o change default value of tRef (put a uniform, meaningful value for ocean
1387      & atmos) and initialize sRef (was missing, as Martin mentioned).
1388    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1389      to be proportional to enstrophy dissipation length.  Thus,
1390       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1391      This is now consistent with Smagorinsky and with the manual.
1392    
1393    checkpoint57u_post
1394    o OBCS and PTRACERS: add open boundary support for passive tracers
1395      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1396        OB-values from file; this is not different from the way theta and salinity
1397        are treated
1398      - however, Orlanski-radiation conditions are not supported, and the model
1399        will stop if you use pTracers and Orlanski at the same time.
1400      - beefed up the rountine obcs_external_fields_load: now only those open
1401        boundary values are overwritten with values from files for which there
1402        are really files, otherwise the OB-fields remain untouched. This makes
1403        it possible to use different OBs at different ends of the domain (as
1404        with EXF)
1405    o reduce number of exch calls in shap_filt (s2).
1406    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1407      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1408    
1409    checkpoint57t_post
1410    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1411    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1412      same truncation, independent of the face number: affects affects several
1413      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1414    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1415      note that biharmonic viscosity + no-slip was not tested in any experiment.
1416    o fix bug in non-linear free-surf side-drag ; generate new output for
1417      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1418    o make mnc honor the writeBinaryPrec flag for most kinds of output
1419    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1420    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1421      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1422    o add brackets in multi-terms sum to get same truncation, independent of
1423      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1424      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1425    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1426      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1427      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1428      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1429      Suggested values of viscosity parameters found in mom_calc_visc.
1430      Many new viscosity diagnostics available.
1431    
1432    checkpoint57s_post
1433    o Add clearing-house for viscosity calculations, mom_calc_visc and
1434      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1435      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1436      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1437      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1438      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1439      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1440      ViscAhStrain and viscAhTension are now retired.
1441    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1442    o In response to JMC's bug report, genmake2 now ignores any soft-links
1443      that it finds in the *current* directory when searching for files.
1444      Soft-links found in any other source directories will still work as
1445      they did before.
1446    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1447      a C routine to unlimit the stack size
1448    o mnc-ify pkg/aim snapshot vars
1449    o mnc-ify pkg/land as requested by Daniel
1450    o various changes to mnc including:
1451      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1452      - output can now be grouped so that all files within a group
1453          change the ITER portion of their names in lock-step together
1454      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1455          and works with both EXCH1 and EXCH2 (but needs more testing)
1456      - writing works for all verification test cases w/ g77 on Linux
1457    
1458    checkpoint57r_post
1459    o make MNC variable initialization happen earlier
1460    o add diagnostics for (almost) each term of the momentum Eq.
1461    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1462    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1463    o remove MINIMAL_TAVE_OUTPUT option ;
1464      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1465    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1466      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1467    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1468    o add time-dependent SST, SSS control
1469    o cost terms in ecco/ modularized (new cost_generic.F)
1470    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1471    o new infrastructure for seaice model vs. obs misfits in seaice/
1472      * driver from the_main_loop.F is seaice_cost_driver.F
1473      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1474      * gradient check in Exp. 6a of natl_box_adjoint/
1475    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1476      (see README file)
1477    
1478    checkpoint57q_post
1479    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1480    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1481      - bug was reported by Jean-Michel and Ian Fenty
1482    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1483      update exp. cpl_aim+ocn output.
1484    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1485      Needed for high-res. runs with large global files
1486      to be able to limit tapelev size
1487    o Changed some tests for adjoint:
1488      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1489      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1490      * global_ocean.90x40x15/ back to default 3-level checkpointing
1491    o Modifications to enable scripted COMMON to MODULE conversion
1492      * verification/OpenAD/code/ has necessary scripts and description;
1493      * converts, compiles and runs successfully;
1494    
1495    checkpoint57p_post
1496    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1497    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1498      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1499    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1500    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1501      (was already the case for dissipation with mom_vecinv,
1502       and also the case for grad.PhiHyd when staggered-timeStep)
1503      This will allow to put dissipation out-off the AB time-stepping.
1504     Unfortunately, affects truncation error. Update output of exp. that "fails"
1505      (cg2d matching number) and leave the others for later: front_relax(10),
1506      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1507      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1508    
1509    checkpoint57o_post
1510    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1511      (2) its ready to be documented during the 20050801 DocFest
1512    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1513      for ideal_2D_oce and lab_sea on linux_ia32_g77
1514    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1515      in global1x1_tot/code_seaice_adj to access indices 32, 33
1516      (worth another tag)
1517    
1518    checkpoint57n_post
1519    o adding precip control xx_precip 32
1520    o adding swflux control xx_swflux 33
1521    o Replacing 10 forcing penalty cost routines by 1 generic.
1522    o Implementing partitioning in time-mean and variable adjustment
1523      for atmos. state.
1524    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1525    o in natl_box_adjoint:
1526      * updated exp 1 to 10
1527        (but does not have time-mean vs. variable split results yet)
1528    o updated global1x1/*_seaice_adj/
1529      to incorporate latest changes
1530    o enable useSingleCpuIO for mdsio vector routines
1531      (applies in particular to tapelev I/O)
1532    o removed inefficient K-loop in all active_file*control*.F
1533    
1534    checkpoint57m_post
1535    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1536      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1537    o pkg/exch2: filling of face-corner halo regions is optional
1538      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1539    
1540    checkpoint57l_post
1541     tag before updating tutorials (pre-release-2)
1542    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1543       for output and interpolation of input fields onto model grid)
1544    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1545       Affects results of exp. rotating_tank ; update output.txt.
1546    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1547          and taking the square quantity and/or using a fraction-weight field.
1548    o fix aim_diagnostics_init.F mate numbers.
1549    o add mnc output capability to diagnostics/diagstat and update
1550      our cvsignore files for the ACSII output generated
1551    
1552    checkpoint57k_post
1553    o lab_sea now uses diagnostics package and provides a suite of
1554      new EXF diagnostics output.
1555    
1556    checkpoint57j_post
1557    o exf
1558      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1559        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1560        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1561      * extended diagnostics output
1562        - now includes all EXF variables
1563        - hs, hl moved to common block
1564        - separate S/R for diagnostics, called after ctrl vector is added
1565        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1566        - EXFqnet contains true Qnet (i.e. includes qsw)
1567      * updated verif. lab_sea, global_with_exf
1568      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1569        to ensure that diagnostics sees a true EXFqnet
1570    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1571    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1572      several times with different frequencies.
1573    o mnc-ify the thsice package as requested by Daniel Enderton
1574      - the monitor--MNC output needs work
1575      - many attributes need to be added (most are currently blank)
1576    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1577      - many attributes need to be added (most are currently blank)
1578    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1579    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1580    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1581      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1582         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1583    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1584     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1585    
1586    checkpoint57i_post
1587    o Diagnostics package was changed: diagnostic allocation is now deactivated
1588      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1589    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1590      add 1rst Order upwind vertical Shear.
1591    o add a quick fix for A/B checkpointing in OFFLINE mode
1592    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1593      end-run around the C/Fortran linking horror in eesup/src/timers.F
1594    o added pkg/runclock: allows user to terminate run based on wall clock
1595    o added non-hydrostatic scaling parameter: nh_am2
1596    o pkg/my82: futile attempt to make results compiler-independent by adding
1597      some "_d 0", etc. no effect.
1598    o for mnc output, fill the 'T' coordinate var with myTime and create a
1599      separate 'iter' variable for iteration count
1600    o pkg/diagnostics:
1601      add new capability: output of Global/Regional & per-level statistics ;
1602      tested against monitor output (including land & thSIce) on various exp.
1603    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1604    
1605    checkpoint57h_done
1606      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1607      data.diagnostics, data.gchem, data.ptracers) is done.
1608    
1609    o pkg/diagnostics: prepare for Global/Regional statistics.
1610      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1611    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1612      and rename it: DIFFERENT_MULTIPLE
1613    
1614    checkpoint57h_post
1615    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1616    o pkg/diagnostics: change output frequency, now in seconds (instead
1617      of Nb of iterations). This requires to change data.diagnostics.
1618    checkpoint57h_pre
1619    
1620    o in mnc, let the user create the output dir if both mnc_outdir_date
1621      and mnc_outdir_num are false
1622    o add fflags() to pkg/diagnostics which allows one to specify, on a
1623      per-file basis, the file precision [default behavior is unchanged]
1624    o added diagnostics to pkg/kpp, including computation of mixed layer
1625      depth based on a temperature/density criterion
1626    o updated verification/natl_box to test the new pkg/kpp diagnostics
1627    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1628    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1629    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1630      not mnc -- this mistake was found by JMC and is now corrected
1631    
1632    checkpoint57g_post
1633    o add Adams-Bashforth 3rd Order time stepping:
1634      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1635      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1636    checkpoint57g_pre
1637    
1638    o make lambda[Theta,Salt]ClimRelax spatially varying
1639      (default remains spatially uniform constant based on tau)
1640    o added new control variables
1641      * init. uVel, vVel, etanN
1642      * lambda[Theta,Salt]ClimRelax
1643    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1644      (suggested by G. Forget)
1645    
1646    checkpoint57f_post
1647    o add parameter "baseTime" = model base time = time at iteration zero
1648      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1649      account for baseTime shift
1650    o move Coriolis arrays from PARAMS.h to GRID.h
1651    checkpoint57f_pre
1652    
1653    o mnc-ifying the seaice package
1654    o introduced an alternative length scale calculation for use in the limiting
1655      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1656    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1657    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1658      as well as grad(vort3).  Made it compatible with both approximate form
1659      for the cubed sphere and full form of these gradients.  Added flag
1660      useFullLeith to select between approximate and full form.  
1661    o add "d0" in getcon.F to reduce differences between compilers/platforms
1662      update output.txt of exp. fizhi-gridalt-hs
1663    o change port_rand funtion to allow to set the seed.
1664    o fix obscure MNC bug involving conversion between reals and integers
1665      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1666        new version is now more standards-compliant
1667    o adjoint-related modifications
1668      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1669      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1670      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1671    
1672    checkpoint57e_post
1673    o Adding eddy stress controls a la Ferreira et al.
1674    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1675    
1676    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1677      update output.txt of exp. fizhi-gridalt-hs
1678    o add more "Z" dimensions and associated coordinate vars to MNC
1679    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1680    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1681      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1682      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1683      months and years.  Requires pkg/cal.
1684    o diagnostics: add pickup functionality
1685      - off by default for backwards compatibility
1686      - current version only uses MDSIO -- MNC will be added
1687    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1688    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1689    
1690    checkpoint57d_post
1691    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1692    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1693      output from the diagnostics package
1694    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1695    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1696      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1697    o add coordinate variables to the MNC output from the diagnostics package
1698    o change MNC-flags default value: true when useMNC=TRUE
1699    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1700      the ability (off by default) to read the grid information using MNC
1701    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1702    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1703    o do snap-shot diagnostics at the middle of the time-interval (instead of
1704      at the end).
1705    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1706      new test for AIM with thSIce + slab-ocean
1707    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1708    o move state variable diagnostics to the beginning of the time step ;
1709      (note: still needs some work specially for snap-shot diagnostics)
1710      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1711    
1712    checkpoint57c_post
1713    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1714    o generate new output.txt files on faulks with g77 & the new -ieee option
1715    checkpoint57c_pre
1716    
1717    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1718      update output.txt of exp. global_ocean.90x40x15
1719    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1720      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1721    o add saltFlux(+File) forcing capability with periodicExternalForcing
1722    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1723    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1724    o improvements for the MNC output from DIAGNOSTICS:
1725      - correct handling of the unlimitied dimension
1726      - all dims now have associated coordinate variables
1727      - variables located at U, V, and Corner ("Z") points are now written
1728        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1729        *all* data points are output
1730    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1731    o added pkg/seaice/seaice_monitor.F
1732    o mdsio_readfield.F can now read files visible only to master MPI process.
1733    o pkg/seaice: some test code for ice-modified ocean stress
1734    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1735      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1736      spurious negative numbers for precipitation and humidity.  Will cause
1737      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1738    o pkg/ctrl/
1739      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1740        May be enabled via doPackDiag
1741      *  introduce z-scaling of
1742         + gradient (doZscalePack) and
1743         + control (doZscaleUnpack)
1744    o pkg/mdsio/
1745      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1746      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1747    
1748    checkpoint57b_post
1749    o simplify options in diagnostics_fill arguments (remove weird combinations)
1750    o fix MNC coordinate variables so that they now contain per-face index
1751      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1752      general, EXCH2 grids are only aligned to a "local" coordinate system
1753    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1754    o Implement instantaneous output within pkg diagnostics:
1755      setting a negative frequency in data.diagnostics produces
1756     "snap-shot" output (as opposed to time-average if freq > 0)
1757    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1758      NOTE: change ptracer diagnostics name: use 2 characters to work with
1759            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1760    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1761      becomes the coordinate variable for the 'T' dimension
1762    o add CF-style coordinate variables to MNC
1763      - just a first cut:  numbers are meaningless on the cubesphere and
1764        missing along the T axis but otherwise it works!
1765    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1766    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1767    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1768      this is based directly on what the model compute, so that the content of
1769      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1770    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1771    o clean up build options files for SunOS, in particular
1772      - remove -traditional from xmakedepend
1773      - change -xarch=v9 to -xarch=native for f77
1774      - restore use of make (not gmake)
1775      - add CC=gcc if using g77
1776    o changes per discussion of AM, JMC, & EH3 today:
1777      - move redundant "grid" variables out of "state" -- in preparation of
1778        creating proper CF-style coordinate variables and in recognition
1779        that any/all grid variables can be easily copied (eg. w/NCO) from
1780        the grid files into any of the other NetCDF files
1781      - *always* output grid variables with MDSIO (this will eventually be
1782        changed)
1783      - output MNC grid file if useMNC is true
1784    o every instance of _END_MASTER() has been found and replaced with
1785      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1786      preprocessors
1787    o re-arrange diagnostics pkg initialisation:
1788     - allow each package to extend the available diagnostics list
1789     - add some checking and fix small problems (multi-threaded, ...)
1790     - new S/R diagnostics_fill (replace fill_diagnostics):
1791       look through the short list of active diag. (instead of the long list)
1792       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1793    
1794    checkpoint57a_post
1795    o this set of changes restores TAMC compatibility
1796      tested for global_ocean.90x40x15 adjoint on trough
1797      (what a pain)
1798    
1799    checkpoint57a_pre
1800    o some modifs in tools/build_options for sunos
1801    o call ctrl_pack for ctrl at end for optimcycle=0
1802    
1803    checkpoint57
1804    o add horizontal bi-harmonic viscosity for vertical velocity
1805      - new parameter viscA4W (defaults to viscA4)
1806      - affects only non-hydrostatic code
1807      - to be done: no-slip lateral boundary conditions
1808    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1809    o implement Implicit Vertical advection for pTracers
1810    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1811      (implemented also for implicit vertical diffusion & advection)
1812    o OBCS: extend application of tracer open boundary conditions
1813      to a strip beyond the boundary of width Olx/Oly
1814    o add call monitor to TAF set of required calls (flow directives)
1815      and include in natl_box_adjoint
1816    o untangle a few ifdefs related to cost, ctrl, autodiff
1817      untangel a few ALLOW_ECCO_OPTIMIZATION
1818    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1819      (theta2, salt2 in ecco_cost_weights)
1820    
1821    checkpoint56c_post
1822    o OBCS as control variables
1823      - update ctrl_ad_diff.list, obcs_ad_diff.list
1824      - remove balance of obcs controls from default
1825      - fix index bug nobcs in ctrl_init
1826      - fix dummy fields filen in ctrl_pack
1827      - add dummy weights for obcs
1828    o lsopt: comment out fort.94 output
1829    o optim:
1830      - remove unnecessary header files
1831      - adjusted namelists
1832      - add xerbla.F to Makefile
1833    o exf:
1834      - multiple modifications of exf_check_range
1835      - unit change in exf_init_runoff from [m/year] to [m/s]
1836    o mdsio:
1837      - i/o-vector change debugLevel from debLevA to debLevB
1838    
1839    checkpoint56b_post
1840    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1841      is called from DO_THE_MODEL_IO
1842      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1843      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1844      - clean up PTRACERS_WRITE_TIMEAVE a little
1845    o add another verification experiment that tests both the cfc-pkg and
1846      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1847      reactive tendencies treated inline with regular timestepping
1848    o testreport previously did a lousy job of comparing small numbers, so
1849      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1850      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1851      testreport.
1852    o ptracers_monitor: bug fix for MPI
1853    
1854    checkpoint56a_post
1855    o GCHEM: finish reorganizating the package
1856      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1857        (introduces another 3D-array for each passive tracer, but only if
1858        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1859        gchemTendency is not needed because the timestep is done separately)
1860      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1861      - GCHEM is now---more or less cleanly---separate from PTRACERS
1862      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1863        so clear to me how that should be done in a general way.
1864    o CFC: improve formatting of output in CFC_ATMOS
1865    o PTRACERS:
1866      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1867        that ALL experiments with ptracers enable can be checked. This makes
1868        GCHEM_MONITOR obsolete.
1869      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1870        monitorFreq
1871      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1872    o add PTRACERS (PTR0[1-5]) to testreport output
1873    o exf_check_range:
1874      * default changed to .TRUE.
1875      * will check values for niter0 if debLevA, every timestep if debLevB
1876      * STOP in exf_check_range if 'out of range'
1877      * range chosen generous to allow for potential extema
1878      TBD: a version with stricter range
1879           permitted range would be runtime parameters
1880  o GMredi:  o GMredi:
1881    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1882    - 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 1885  o GCHEM:
1885    - 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
1886      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1887    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1888      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1889        this flag is now only visible within GCHEM-pkg routines.
1890      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1891        be replaced by a 3D array that is computed before thermodynamics; for
1892        this, the tracer ID iTracer had to be included into the parameter list
1893        of ptracers_forcing
1894      - set up forward_step to call gchem_forcing, that will replace
1895        gchem_forcing_int in ptracers_forcing
1896      - cleaning up
1897  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
1898    
1899  checkpoint56  checkpoint56

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