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revision 1.764 by jmc, Thu Jan 11 00:29:41 2007 UTC revision 1.992 by dimitri, Thu May 22 01:59:50 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/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.  o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
748  o testreport: add option "-skipdir" to skip some test.  o testreport: add option "-skipdir" to skip some test.
749  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent  o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent

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