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revision 1.769 by dimitri, Wed Feb 7 17:38:11 2007 UTC revision 1.993 by mlosch, Thu May 22 08:36:53 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
8      mass points, when using mnc for output
9      - add runtime parameter (missing_value, missing_value_int) to override
10        default (which is the value of getcon('UNDEF'))
11    o pkg/mnc: prepare mnc for the actual use of missing values with the
12      diagnostics package: small fix in mnc_cw_readwrite.template and more
13      initialisation of never used fields
14    o pkg/thsice/thsice_ini_vars.F added default initial values so that thermodynamics
15      sea ice solver does not blow up when some initial fields are missing.
16    o move from external_forcing_surf.F to ini_forcing.F
17      the p-coord. hack consisting in using pLoad to set phi0surf ;
18      update output of tutorial_global_oce_in_p (affected @ truncation level).
19    o Freshen up a bit hs94.1x64x5, notably:
20      remove rotationPeriod and tRef=5*0. (adjoint only), and add exactConserv=.TRUE.
21    o pkg/generic_advdiff:
22      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
23      applies to files where Temperature & Salinity 2nd Order moments are used.
24    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
25      this uses a dynamically allocated internal state data structure
26      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
27      and requires a fortran 90 compiler
28    
29    checkpoint59q
30    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
31       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
32    o Refresh tutorial_global_oce_biogeo, notably:
33      - change bathymetry (put back seamounts in ACC, use hFacs)
34      - change EOS (POLY3 --> JMD95Z)
35      - use Bryan-Lewis vertical diffusivity
36      - use multidimensional advection
37      - remove old virtual virtual in dic pkg, now done through ptracer pkg
38      - change a couple of parameters in dic pkg
39    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
40    o pkg/obcs: change default to OBCSfixTopo = .true.,
41      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
42      - replace "debugMode" with "debugLevel .GE. debLevB"
43    o implementation of TAF directives for gchem,cfc,dic
44    o remove "exp5" (replaced by tutorial_deep_convection).
45    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
46      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
47      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
48      --> changes results in exp4, seaice_obcs
49    o tutorial_deep_convection :
50      update the set-up and increase resolution and domain size ; start
51      from pseudo initial conditions = output at t=120mn in order to see
52      something happening when running testreport.
53    o pkg/seaice: add os7mp as an advection scheme
54                  add check for advection schemes
55                  add a flag for restoring T and S underneath sea ice
56    o pkg/my82: add netcdf-support and diagnostics
57    o thsice pkg:
58      - Now hsMax limits snow height by turning it into ice following
59        flooding scheme (and now conserving energy)
60      - Slight rewriting of the formula in thsice_calc_thick.F
61      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
62      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
63    
64    checkpoint59p
65    o gchem / dic / cfc :
66      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
67      - add new parameter files: "data.dic" & "data.cfc" ;
68      - various re-arrangement in initialisation & header file ;
69      - fix tutorial_global_oce_biogeo for multi-threaded test.
70    o pkg/dic: test for "pickup_dic" file when restarting ;
71      if no pickup-file, can restart with a re-initialised pH (same as it did
72      before) providing pickupStrictlyMatch is set to False.
73    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
74      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
75    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
76      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
77    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
78     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
79       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
80    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
81       scheme to use for vorticty-term ;
82     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
83       (with default selectVortScheme, return to original discretisation)
84     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
85    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
86    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
87      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
88      also fix diagnostics VISCAHW & VISCA4W.
89    
90    checkpoint59o
91    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
92    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
93      move a few statemens out the main loop into separate loops
94    o pkg/shelfice:
95      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
96        (kg/m^2/s), does not break tests, because in verification/isomip,
97        rhoConstFresh=rhoConst (by accident)
98      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
99      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
100        new file model/src/seawater.F, so that they are available for all pkgs.
101      - convert potential temperature into in-situ temperature. This changes the
102        isomip tests => update tests
103    o add a flag writePickupAtEnd (default=true) to be able to suppress
104      writing a pickup at the last timestep
105    o tools/mpack-1.6 :
106      - disable automake (not working) and autoconf (not needed).
107      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
108        also cleaner with much less compilation warnings.
109    o pkg/profiles:
110      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
111      (for "less than 32 characters name" compiler requirement)
112    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
113      conditions that have a different sampling frequency than S/T/U/V obcs
114    o pkg/diagnostics (stats-diags):
115      - fix global Min/Max in case 1 processor get only empty tiles
116    o genmake2: replace (4 times)
117         make genmake_tc_1.o >> genmake_warnings 2>&1
118      with
119         COMM="$CC $CFLAGS -c genmake_tc_1.c"
120         echo $COMM >> genmake_warnings
121         $COMM >> genmake_warnings 2>&1
122      to make genmake2 always see the value of CC as specified in the optfile.
123    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
124      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
125      - modify verification advect_cs test to test SOM-advection on CS-grid.
126    o pkg/ctrl:
127      - Rewrite of ctrl_map_ini_ecco.F,
128        introducing a generic routine (ctrl_map_ini_gen.F).
129      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
130    
131    checkpoint59n
132    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
133      number in dedicate array "hdiag":
134      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
135        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
136      - many small changes (integer format) for large number of diagnostics
137      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
138        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
139    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
140      usingSphericalGrid, this allows to define the rotated grid coordinates
141      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
142      geographical coordinates according to the inverse of the rotation defined
143      by the Euler angles, so that Coriolis parameter and online-interpolation by
144      exf works with the geographical coordinates on XC/YC/XG/YG.
145      Naturally, this feature does not work with all packages, so some
146      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
147      profiles), because there the coordinates are assumed to be regular
148      spherical grid coordinates.
149    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
150      - introduce isopycnal diffusion coefficient control.
151    o tools/adjoint_options:
152      - additional control vector components.
153    o pkg/mnc: have mnc create marginally meaning full coordinate variables
154      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
155    o pkg/mypackage:
156      - add example of read/write pickup for state-var ;
157      - add entry points to the main code for state-vars diags & write-pickup.
158    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
159      transitions for useExfYearlyFields
160      - add new subroutine that determines the file to read from for
161        use*YearlyFields = .TRUE. and .FALSE.
162      - add a verification experiment to global_with_exf that tests
163        useExfYearlyFields with USE_EXF_INTERPOLATION defined
164    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
165      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
166      subroutines (which could be generated from a template, because they are
167      almost identical), for now they are included in obcs_prescribe_read.F for
168      simplicity
169    o pkg/exf:
170      - add a little more diagnostic to exf_interp_read (in analogy to
171        mds_read_field, can be turned off with debugLevel < debugLevA=1)
172      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
173        ugly but fast by unrolling short inner loops, inserting a unroll=8
174        directive in routine lagran, and splitting a loop and making do while the
175        outermost loop (the latter requires the intoduction of index arrays)
176    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
177    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
178      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
179    o verification/seaice_obcs: updated for restart test and latest options
180    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
181      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
182      for now this is only available for the C-grid code and also within
183      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
184    
185    checkpoint59m
186    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
187      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
188    o gad_som : fix flux output (& diagnostics) to have same units as other  
189      advection scheme fluxes (was previously multiplied by deltaT).  
190    o added verification/seaice_obcs both to test seaice open boundaries
191      and to provide an example matlab scrpt for generating them
192    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
193    o pkg/salt_plume: clean up salt_plume_frac.F to
194      remove redundancy in PlumeMethod 1 and 4
195    o pkg/kpp: added saltplume diagnostics
196    o pkg/obcs and pkg/seaice:
197      - do not set uice and vice to zero when OB*icefile are unspecified
198      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
199      - moved seaice tracer obcs after call to seaice_growth
200    o pkg/salt_plume: added various options for salt plume depth
201      criterion and for vertical distribution of the salt
202    
203    checkpoint59l
204    o pkg/ptracers: new version of ptracers pickup:
205      read meta file and write only fields which are needed to restart.
206      ( same logic as main pickup file ; also using pickupStrictlyMatch )
207    o pkg/seaice:
208      - add timescale for melting due to warm mixed layer as a means of
209        setting SEAICE_availHeatFrac more conveniently
210      - add a CPP-flag/runtime parameter check for flooding algorithm
211      - reformulated availHeat in seaice_growth.F to be independent of AREA
212    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
213      unit changes
214    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
215    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
216      SX vector computer.
217    o pkg/seaice:
218      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
219        seaice forcing fields can now be read only through pkg/exf
220      - removed some unused halos
221    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
222    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
223      or U/VICE from U/VWIND before computing U/VSTRESS
224    
225    checkpoint59k
226    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
227      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
228    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
229      all experiments pass when compile with un-initialised var. checking option.
230    o added pkg/salt_plume
231    o script to test restart (for now, in MITgcm_contrib/jmc_script)
232    o pkg/seaice: new read/write pickup version.
233      read meta file and write only fields which are needed to restart.
234      ( same logic as main pickup file ; also using pickupStrictlyMatch )
235    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
236    o lab_sea.hb87: modify the domain & update output.hb87.txt :
237      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
238      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
239      process. Fixed here by closing the domain at the Northern boundary.
240    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
241    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
242      a set of consecutive levels in/from a 3-D array.
243    o pkg/ptracers:
244      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
245      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
246    
247    checkpoint59j
248    o in pkgs: dic, obcs, offline, rbcs:
249      standard way to compute coeff. for time interpolation between 2 time reccords
250      which retains full precision (& make results less dependent on compiler).
251      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
252    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
253      packages instead of reading ice cover and wind speed separately
254    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
255     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
256      to allow to compile customized code before the update)
257    o cleaning-up:
258      - fix CPP instruction syntax in pkg/obcs
259      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
260        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
261      - fix some threads issue in IO parts.
262    o pkg/dic:
263      - add tons of "_d 0" (--> much better testreports !)
264       and then update outputs of tutorial_global_oce_biogeo
265    o pkg/mom_fluxform:
266      add a special version of momentum advection intended to conserve momentum
267      next to a bathymetry step or a coastline edge. (default = off = #undef)
268    o new read/write pickup version:
269      - for now, only implemented for main (mdsio) pickup file.
270      - write out only what is needed to restart; merge pickup_nh , pickup_ph
271        and main pickup together.
272      - read meta file; read only what is needed to restart; stop if a field
273        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
274        if it make sense (even if the restart is not perfect).
275      - if no meta file, assume that pickup to read corresponds exactly to
276        a pickup that would currently be written.
277      - read pickup written in the old format (until checkpoint59i) if it
278        recognizes an old meta file (no field-list).
279      - add a meta file in exp. which starts from a pickup: 2 cases:
280        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
281         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
282        b) a meta file describing the content of the associated pickup file
283         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
284    o pkg/mdsio & pkg/rw:
285      - new routine to read a meta file ; new set of routine to read
286        Multiple-fields file (with meta file).
287    o added open boundary conditions capability for seaice
288        HSNOW, HSALT, UICE, and VICE
289    
290    checkpoint59i
291    o adjoint:
292      * fix multiDimAdvection adjoint
293        (partial recomputation problem by TAF for fVerT(:,:,kDown)
294        and comlev1 size definition (maxpass vs. max. number of tracers)
295      * verification/global_ocean.90x45x15 adjoint now tests
296        NLFS and multiDimAdvection using DST3 (=30)
297      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
298    o pkg/kpp: add "_d 0" to real constant (if missing);
299      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
300      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
301    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
302      for internal parameters related to restart process (formerly from PARAMS.h)
303      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
304    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
305      as argument. (only atm2d & obcs write_pickup have not yet been updated)
306    o pkg/monitor:
307      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
308      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
309      - account for deep Atmosphere factor and density factor (anelastic)
310    o added open boundary conditions capability for seaice HEFF and AREA
311    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
312      thermodynamics
313      - requires a little reorganization, which affects the testreport results
314        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
315        so that now the conservative form is tested
316      - add a few comments
317    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
318    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
319    o add new diagnostics to seaice: advective, diffusive fluxes (only for
320      multidim-advection, for scheme 2 they are not filled) and transports,
321      thermodynamic growth rates
322    o change units of EmPmR (inside the code, + within coupling interface)
323      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
324      Affects results @ truncation level (cg2d match) and update output of
325       experiments: lab_sea(6), global_ocean.90x40x15(10),
326      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
327      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
328      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
329      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
330    
331    checkpoint59h
332    o pkg/exf:
333      - improve vectorization by moving if-statement out of loops in
334        exf_mapfields, exf_radiation
335      - exf_bulkformulae.F: introduce 2D fields and vectorize code
336    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
337    o testreport:
338      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
339        monitor & update offline_exf_seaice exp. output.
340      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
341    o pkg/seaice:
342      - bug fix in the evp solver: boundary conditions were affected be
343        masking of zMax/zMin (changes results)
344      - minor bug fix in boundary conditions in seaice_calc_strainrates
345        (changes results for no_slip)
346      - seaice_lsr.F: make interpolation of eta dependent on boundaries
347      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
348      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
349        stress formulation and no-slip boundary conditions
350    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
351      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
352    o pkg/seaice: a first HSALT time stepping equation has been checked in
353    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
354      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
355      without requiring DO-IF statements
356    o pkg/thsice:
357      use continuous power-law function for partition of energy between lateral
358      melting/freezing and thinning/thickening ; old code using step function
359      still available with #undef THSICE_FRACEN_POWERLAW
360      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
361    o testreport: change AD testing : check against results/output_adm.txt
362      using same scripts as for forward test.
363    
364    checkpoint59g
365    o adjoint testing: in preparation for changing testreport:
366      - output format: cost and grad written on separated lines
367      - ad output results in directory "results" (instead of "results_ad")
368    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
369    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
370    o pkg/ecco: allow user defined cost function contributions
371    o testreport:
372      Allow to choose (per experiment) the list of tested output variables
373       and the main variable (used to issue a pass/FAIL ) ;
374      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
375      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
376      Also modify printing of summary:
377       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
378       b) echo the list of tested variables in the individual summary.txt of
379          each experiment.
380    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
381      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
382      (but still depend on the tile decompostion of the domain).
383    o pkg/seaice: change a discretization detail to make the B-grid code
384      "more symmetric". This change is likely to remove all "ridges/leads" that
385      where quasi-aligned with the grid in B-grid solutions. It may also be
386      the solution to the stress coupling issues with the B-grid.
387    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
388      remove .cvsignore from input dir. (since testreport no longer run here).
389    o pkg/thsice:
390     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
391     - fix reshaping of sea-ice just after advection:
392       melt all the ice only if ice-volume is too small.
393     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
394       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
395     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
396    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
397      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
398    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
399      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
400      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
401      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
402      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
403      -> update output.txt
404    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
405     this affects truncation error: -> update output.txt of exp:
406      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
407      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
408    
409    checkpoint59f
410    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
411    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
412      a bounded range (in forward mode)
413    o pkg/ecco, ctrl, autodiff and mom_common:
414     internal parameter controls, completements of implementations
415    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
416    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
417      (not seem any difference in testing results).
418    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
419       at face corners.
420    o pkg/generic_advdiff:
421     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
422      loop range indices for computing vertical advection tendency
423      and do the calculation in the interior only (no overlap) ;
424      for now, only implemented for SOM advection (to save CPU time).
425     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
426    o exch2 adjoint
427      First set of changes:
428      - add exch2 hand-written adjoint templates
429      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
430        This will require cleanup in pkg/autodiff/*.F
431        (changed routines currently kept separate in verif. code/)
432      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
433        that used to hide exch2 or cubed-sphere specific code
434        (commented via 'cph-exch2')
435    o pkg/seaice
436      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
437    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
438       output of global_ocean.cs32x15.thsice .
439    
440    checkpoint59e
441    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
442      for B-grid vector (not yet tested) and C-grid vector (<- only used
443      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
444    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
445      (#ifdef ALLOW_SALT_PLUME)
446    o gather_2d/scatter_2d: removed halo regions
447    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
448      scheme and the corresponding test case (under front_relax dir). For now,
449      only available with Skew-flux form and not yet tested in realistic set-up.
450      adjoint: store directives updated, but gradient checks deteriorated,
451      so maybe GM/Redi adjoint is now broken.
452    o seaice adjoint
453      * add AREA, HEFF, HSNOW as control variable
454        (should not change lab_sea results)
455      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
456    o pkg/seaice:
457      * added computation of saltFlux in seaice_growth;
458        For time being, sea ice salinity is assumed constant
459        contribution of snow flooding to freshening of sea ice is neglected.
460        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
461        defaults to 0.0 in order to maintain backward compatibility.
462        Typical values for SEAICE_salinity are 4 to 10 g/kg.
463      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
464      * added SEAICE_availHeatFrac, which specifies fraction of surface level
465        heat content used to melt or grow ice
466      * commented out cap of HICE: it helps keep ice thinner
467      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
468      * applied OBCS T/S mask to HEFFM sea ice mask
469    
470    checkpoint59d
471    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
472     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
473     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
474    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
475     and change default value of parameter "GM_Small_Number";
476     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
477       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
478       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
479    o pkg/ecco: cost function when applying pkg/smooth to controls
480    o pkg/ctrl: add forcingPrecond run time parameter
481    o pkg/seaice:
482     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
483     - fix bug in metric terms of u-equation in LSR solver (implicit part),
484       changes verification/lab_sea
485     - rearrange implicit part of u-equation in LSR solver to make it easier to
486       read, understand, and debug. This causes changes at the truncation level.
487     - fix (serious) bug in the boundary conditions (sign error in the implicit
488       part) of the LSR solver. Changes all LSR results.
489     - fixed problem with HSNOW initialization to avoid thick snow when AREA
490       is initilized with small values - does not change lab_sea results.
491     - added HsnowFile initialization capability
492    o pkg/smooth: addition to model/src and pkg/ctrl so allow
493     initialization of pkg/smooth and application to control vector
494    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
495    o dependencies: pkg/profiles requires pkg/cal
496    o pkg/profiles:
497     - added option ALLOW_PROFILES_GENERICGRID
498         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
499         that interpolation information (grid points and coefficients) is provided
500         within the netcdf input files.
501         -> sample matlab scripts can be found in MITgcm_contrib/gael
502         that allow you to prepare netcdf input files.
503     - also modified: cleaner include statements, cleaner error print statements,
504       cleaner stops when error, and more tests of the netcdf input files consistency.
505    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
506    o pkg/seaice:
507     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
508       requires a new routine: seaice_diagnostics_fill.F
509     - make sure that seaice does not move if not forced (pressure replacement
510       method, Hibler and Ip, 1995), changes results
511     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
512     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
513       It is turned off by default (=-1.), because it changes the results.
514     - make it possible to read AREA from a file, too.
515    
516    checkpoint59c
517    o add S/R and diagnostics for oceanic mixed-layer depth
518    o move GMRedi call after all vertical mixing schemes (including KPP)
519    o pkg/thsice:
520     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
521      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
522    o pkg/obcs:
523     - bug fix for balance code
524    o pkg/seaice:
525      - allow values of SEAICE_elasticParm > 1
526      - add new parameter SEAICE_evpTauRelax as an alternative
527        to SEAICE_elasticParm
528      - make lsr boundary conditions free slip (by default), changes result
529      - add code for no slip boundary conditions for lsr
530      - set minimum of zeta to zero (and not 4e8) (changes results)
531      - add a cap on AREA after advecting AREA if seaice_growth is not called
532    o change calculation of Visbeck K:
533      - no longer depend on tapering scheme; instead, compute slope (limited
534        by GM_maxSlope). this is equivalent to what was comuted before with
535        clipping or linear tappering.
536      - fix vertical averaging (wrong by 1/2 level)
537      - leave the old version (but will not be maintained) within
538        #ifdef OLD_VISBECK_CALC / #endif
539      - update output of exp. ideal_2D_oce
540    o change error catch in calc_r_star to improve vectorization
541    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
542      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
543    o adjoint:
544      Re-organized adjoint checkpointing according to Matt Mazloff
545      (but with modifs/completions/cleanups)
546      Storing is now bundled into large arrays to optimized I/O
547      (and second step in cleanup of the_main_loop)
548    
549    checkpoint59b
550    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
551      - export/import (between ocean & coupler) fields needed for ocean DIC.
552    o pkg/seaice:
553      - get rid of three more exchanges seaice_calc_viscosities (required
554        different loop boundaries in seaice_lsr and seaice_ocean_stress)
555      - bug fix in seaice_ocean_stress (update of lab_sea required)
556      - reduce loop boundaries to necessary minimum also in seaice_evp
557      - go back to the old way of computing deltaC/Z as the adjoint likes that
558        better
559    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
560      passive tracer to an Age Tracer) + update output.txt
561    o pkg/exf:
562      - implement A-grid / C-grid selection for wind-stress input files.
563      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
564      for now, in exf_bulk_largeyeager04.F only :
565      - change implementation for case where windspeed + 2. components wind-stress
566        are read-in. AND use rhoConstFresh to convert evap.
567    o pkg/seaice:
568      - use correct EXCH_UV for wind-forcing (on A-grid).
569      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
570        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
571    o pkg/exf:
572      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
573      EXF_INTERPOLATION:
574      - merge global_with_exf/code version of exf_interp_read.F
575        to the main code ;
576      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
577        reading the file ; Important: This options needs to be defined to recover
578        previous code.
579        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
580      - no longer loose real*8 precision along the way when using exf_iprec=64.
581    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
582      - change discretisation of evp-solver in order to avoid another exchange
583        (changes lab_sea) and clean up a little
584      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
585        help the adjoint (this also changes the results slightly)
586      - add a few "_d 0" where they had been missing in seaice_evp.F
587      - cleaning up: remove unused seaice_calc_rhs.F
588    o pkg/exf: some cleaning-up:
589      - change various "constants" into runtime parameters
590      - cleaned-up Large&Yeager04 routine which should eventually
591        replace exf_bulkformulae.F (changed names of S/R and CPP)
592        and merged various ALLOW_ATM_WIND options
593     only used with thsice pkg (in thsice_get_exf.F):
594      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
595        which are used when useStabilityFct_overIce=TRUE (= the default)
596      - change default values of ice & snow emissivity and scale downward LW
597        by ice & snow emissivity.
598    o pkg/thsice:
599     fix few little problems, in thsice_calc_thickn.F:
600      - growth vertically (and not laterally) if iceFrac == iceMaskMax
601      - melt only laterally if hIce < hThinIce (as the comments say)
602      and in thsice_extend.F:
603      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
604      - start to form ice as soon as the minimum ice-volume is reachable.
605     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
606      and cpl_aim+ocn
607    o pkg/kpp
608     - move computation of surface related input fields to KPP into a new
609       subroutine kpp_forcing_surf.F
610     - remove wrong (within bi,bj loops) EXCH calls.
611     - little cleaning (add argument myThid in last position, cvs header ...)
612     - for now, fix conservation problem by exchanging KPPviscAz (may not
613       be the best fix)
614    o pkg/seaice
615     - check for inconsistent evp parameter/cpp-flag combination
616     - remove leftover errIO flat for obsolete name list error handling
617    o OpenAD
618     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
619    
620    checkpoint59a
621    o pkg/seaice: some parameter clarifications and a little bit of clean up
622    o pkg/thsice: rename run-time parameters:
623       himin       -> hIceMin
624       himin0      -> hThinIce
625       hihig       -> hThickIce
626       i0          -> i0swFrac
627       transCoef   -> bMeltCoef
628       frac_energy -> fracMelting
629      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
630       with default values (for now) that do not change the results.
631      remove old version of thsice vars advection in pkg/seaice.
632    o in FFIELDS.h:
633      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
634      - make pLoad & sIceLoad always available (but still only used if
635         ATMOSPHERIC_LOADING is #define).
636    o pkg/kpp: replaced _KPP_RL with _RL
637    o bug fixes for vertical diffusivity computations when both KPP and
638        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
639        are no longer updating the vertical diffusivity array
640        (passed as argument) but are (re-) setting those arrays.
641    o pkg/seaice: fix bug in evp solver, while doing that
642      - change (improve?) discretization of stress computations for both
643        cgrid-lsr and evp solver
644      - add a new routine to compute strain rates
645      - the above changes lab_sea results
646      - add no slip conditions for evp solver (off by default), lsr-version
647        may follow
648      - fix exchange for shear at Z-points (does not change lab_sea)
649      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
650        (to force the user to pick a time step since there is not "safe" way
651        of choosing it)
652      - add principal stress diagnostics
653      - rearrange fields for evp a little to avoid having to call a: too many
654        exchanges and b: exchanges for stress trensor components which we do
655        not have.
656      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
657        of evp, complete rewrite for lsr case (latter is does not yet work
658        in all cases)
659    o pkg/kpp: add code to have mixing in shelf ice caverns
660      - add myThid to all kpp routines (long overdue)
661    
662    checkpoint59
663    o pkg/exf:
664      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
665        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
666      - move exf header files from lower_case.h to UPPER_CASE.h ;
667        add missing cvs Header & Name
668      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
669      - add namelist param. selectStressGridPosition, exf_monFreq
670      - retire many _CLIM routines, and remove data.exf_clim
671        + params moved to data.exf
672        + climsst, climsss now handled by exf_set_gen, i.e.
673          climss?period=0 refers to constant field,
674          climss?period=-12 to monthly forcing
675      - split up namelists in data.exf
676    o pkg/seaice:
677      - remove seaice_exch and seaice_exch_uv
678      - remove superfluous exchange of theta
679      - add myThid to seaice_budget_ocean/ice
680      - add new interface for atmospheric wind forcing (C-grid only)
681        + new routine
682        + two new field (taux, tauy for stress over ice)
683        + removed one global field (DAIRN) for C-grid case only
684    o pkg/thsise
685      - 2nd set of modifs for thsice adjoint in conjunction with exf
686    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
687    
688    checkpoint58y_post
689    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
690      vertical diffusivity, similar to that in MOM4; turned on using
691      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
692      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
693    o Added capability for 3D specification of background vertical diffusion
694      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
695      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
696      "data" file that contains the 3D vertical diffusivity coefficients.
697    o ice dynamics (pkg/seaice) with thsice thermodynamics:
698      - add code within pkg thsice to advect & diffuse sea-ice fields
699      similar to (and will replace) what has been added in  seaice_advdiff.F,
700      but: - conserving Mass, Heat & Salt.
701           - better when using non-linear advection scheme (not yet fully tested)
702           - can also be used in atmospheric set-up (for now, only the diffusion).
703    
704    checkpoint58x_post
705    o IO option for global-file compact format:
706      - add options when generating topology (utils/exch2/matlab-topology-generator)
707      - add I/O capability (pkg/mdsio).
708      - adapt utils/matlab/rdmds.m to read this format.
709      for now long-line format not yet supported by pkg/mdsio (& exch2).
710    o shelfice: add a few diagnostics
711    
712    checkpoint58w_post
713    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
714      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
715      (and replace horiVertRatio in NH code).
716      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
717                         and tutorial_plume_on_slope (sensitive to truncation)
718    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
719      directly to drive seaice model (C-grid only)
720    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
721     - reintroduce computation of wind from stress,
722     - compute tau (in exf_bulkformulae.F) from windstress averaged to
723       mass points to avoid tau = 0
724     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
725    o rdmnc.m: make it work with "global" files created with gluemnc
726    o rdmnc.m : some improvements in dealing with singleton dimension
727      (tested on all testreport mnc output files).
728    o genmake2: disable pkg/profiles if netcdf test fails.
729    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
730    o move call to cal_readparms up to make calendar parameters/variable available
731      to all packages
732    
733    checkpoint58v_post
734    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
735      useDynP_inEos_Zc tested.
736  o pkg/exf: changes to properly interpolate/mask/scale initial fields  o pkg/exf: changes to properly interpolate/mask/scale initial fields
737  o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields  o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
738    and portions thereof.  See read_cs.txt for description and examples.    and portions thereof.  See read_cs.txt for description and examples.

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