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revision 1.811 by mlosch, Wed May 9 14:32:05 2007 UTC revision 1.982 by mlosch, Fri Apr 25 12:14:35 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/obcs: change default to OBCSfixTopo = .true.,
8      set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
9    o implementation of TAF directives for gchem,cfc,dic
10    o remove "exp5" (replaced by tutorial_deep_convection).
11    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
12      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
13      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
14      --> changes results in exp4, seaice_obcs
15    o tutorial_deep_convection :
16      update the set-up and increase resolution and domain size ; start
17      from pseudo initial conditions = output at t=120mn in order to see
18      something happening when running testreport.
19    o pkg/seaice: add os7mp as an advection scheme
20                  add check for advection schemes
21                  add a flag for restoring T and S underneath sea ice
22    o pkg/my82: add netcdf-support and diagnostics
23    o thsice pkg:
24      - Now hsMax limits snow height by turning it into ice following
25        flooding scheme (and now conserving energy)
26      - Slight rewriting of the formula in thsice_calc_thick.F
27      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
28      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
29    
30    checkpoint59p
31    o gchem / dic / cfc :
32      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
33      - add new parameter files: "data.dic" & "data.cfc" ;
34      - various re-arrangement in initialisation & header file ;
35      - fix tutorial_global_oce_biogeo for multi-threaded test.
36    o pkg/dic: test for "pickup_dic" file when restarting ;
37      if no pickup-file, can restart with a re-initialised pH (same as it did
38      before) providing pickupStrictlyMatch is set to False.
39    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
40      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
41    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
42      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
43    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
44     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
45       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
46    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
47       scheme to use for vorticty-term ;
48     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
49       (with default selectVortScheme, return to original discretisation)
50     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
51    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
52    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
53      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
54      also fix diagnostics VISCAHW & VISCA4W.
55    
56    checkpoint59o
57    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
58    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
59      move a few statemens out the main loop into separate loops
60    o pkg/shelfice:
61      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
62        (kg/m^2/s), does not break tests, because in verification/isomip,
63        rhoConstFresh=rhoConst (by accident)
64      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
65      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
66        new file model/src/seawater.F, so that they are available for all pkgs.
67      - convert potential temperature into in-situ temperature. This changes the
68        isomip tests => update tests
69    o add a flag writePickupAtEnd (default=true) to be able to suppress
70      writing a pickup at the last timestep
71    o tools/mpack-1.6 :
72      - disable automake (not working) and autoconf (not needed).
73      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
74        also cleaner with much less compilation warnings.
75    o pkg/profiles:
76      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
77      (for "less than 32 characters name" compiler requirement)
78    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
79      conditions that have a different sampling frequency than S/T/U/V obcs
80    o pkg/diagnostics (stats-diags):
81      - fix global Min/Max in case 1 processor get only empty tiles
82    o genmake2: replace (4 times)
83         make genmake_tc_1.o >> genmake_warnings 2>&1
84      with
85         COMM="$CC $CFLAGS -c genmake_tc_1.c"
86         echo $COMM >> genmake_warnings
87         $COMM >> genmake_warnings 2>&1
88      to make genmake2 always see the value of CC as specified in the optfile.
89    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
90      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
91      - modify verification advect_cs test to test SOM-advection on CS-grid.
92    o pkg/ctrl:
93      - Rewrite of ctrl_map_ini_ecco.F,
94        introducing a generic routine (ctrl_map_ini_gen.F).
95      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
96    
97    checkpoint59n
98    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
99      number in dedicate array "hdiag":
100      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
101        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
102      - many small changes (integer format) for large number of diagnostics
103      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
104        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
105    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
106      usingSphericalGrid, this allows to define the rotated grid coordinates
107      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
108      geographical coordinates according to the inverse of the rotation defined
109      by the Euler angles, so that Coriolis parameter and online-interpolation by
110      exf works with the geographical coordinates on XC/YC/XG/YG.
111      Naturally, this feature does not work with all packages, so some
112      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
113      profiles), because there the coordinates are assumed to be regular
114      spherical grid coordinates.
115    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
116      - introduce isopycnal diffusion coefficient control.
117    o tools/adjoint_options:
118      - additional control vector components.
119    o pkg/mnc: have mnc create marginally meaning full coordinate variables
120      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
121    o pkg/mypackage:
122      - add example of read/write pickup for state-var ;
123      - add entry points to the main code for state-vars diags & write-pickup.
124    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
125      transitions for useExfYearlyFields
126      - add new subroutine that determines the file to read from for
127        use*YearlyFields = .TRUE. and .FALSE.
128      - add a verification experiment to global_with_exf that tests
129        useExfYearlyFields with USE_EXF_INTERPOLATION defined
130    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
131      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
132      subroutines (which could be generated from a template, because they are
133      almost identical), for now they are included in obcs_prescribe_read.F for
134      simplicity
135    o pkg/exf:
136      - add a little more diagnostic to exf_interp_read (in analogy to
137        mds_read_field, can be turned off with debugLevel < debugLevA=1)
138      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
139        ugly but fast by unrolling short inner loops, inserting a unroll=8
140        directive in routine lagran, and splitting a loop and making do while the
141        outermost loop (the latter requires the intoduction of index arrays)
142    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
143    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
144      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
145    o verification/seaice_obcs: updated for restart test and latest options
146    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
147      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
148      for now this is only available for the C-grid code and also within
149      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
150    
151    checkpoint59m
152    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
153      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
154    o gad_som : fix flux output (& diagnostics) to have same units as other  
155      advection scheme fluxes (was previously multiplied by deltaT).  
156    o added verification/seaice_obcs both to test seaice open boundaries
157      and to provide an example matlab scrpt for generating them
158    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
159    o pkg/salt_plume: clean up salt_plume_frac.F to
160      remove redundancy in PlumeMethod 1 and 4
161    o pkg/kpp: added saltplume diagnostics
162    o pkg/obcs and pkg/seaice:
163      - do not set uice and vice to zero when OB*icefile are unspecified
164      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
165      - moved seaice tracer obcs after call to seaice_growth
166    o pkg/salt_plume: added various options for salt plume depth
167      criterion and for vertical distribution of the salt
168    
169    checkpoint59l
170    o pkg/ptracers: new version of ptracers pickup:
171      read meta file and write only fields which are needed to restart.
172      ( same logic as main pickup file ; also using pickupStrictlyMatch )
173    o pkg/seaice:
174      - add timescale for melting due to warm mixed layer as a means of
175        setting SEAICE_availHeatFrac more conveniently
176      - add a CPP-flag/runtime parameter check for flooding algorithm
177      - reformulated availHeat in seaice_growth.F to be independent of AREA
178    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
179      unit changes
180    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
181    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
182      SX vector computer.
183    o pkg/seaice:
184      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
185        seaice forcing fields can now be read only through pkg/exf
186      - removed some unused halos
187    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
188    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
189      or U/VICE from U/VWIND before computing U/VSTRESS
190    
191    checkpoint59k
192    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
193      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
194    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
195      all experiments pass when compile with un-initialised var. checking option.
196    o added pkg/salt_plume
197    o script to test restart (for now, in MITgcm_contrib/jmc_script)
198    o pkg/seaice: new read/write pickup version.
199      read meta file and write only fields which are needed to restart.
200      ( same logic as main pickup file ; also using pickupStrictlyMatch )
201    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
202    o lab_sea.hb87: modify the domain & update output.hb87.txt :
203      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
204      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
205      process. Fixed here by closing the domain at the Northern boundary.
206    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
207    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
208      a set of consecutive levels in/from a 3-D array.
209    o pkg/ptracers:
210      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
211      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
212    
213    checkpoint59j
214    o in pkgs: dic, obcs, offline, rbcs:
215      standard way to compute coeff. for time interpolation between 2 time reccords
216      which retains full precision (& make results less dependent on compiler).
217      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
218    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
219      packages instead of reading ice cover and wind speed separately
220    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
221     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
222      to allow to compile customized code before the update)
223    o cleaning-up:
224      - fix CPP instruction syntax in pkg/obcs
225      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
226        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
227      - fix some threads issue in IO parts.
228    o pkg/dic:
229      - add tons of "_d 0" (--> much better testreports !)
230       and then update outputs of tutorial_global_oce_biogeo
231    o pkg/mom_fluxform:
232      add a special version of momentum advection intended to conserve momentum
233      next to a bathymetry step or a coastline edge. (default = off = #undef)
234    o new read/write pickup version:
235      - for now, only implemented for main (mdsio) pickup file.
236      - write out only what is needed to restart; merge pickup_nh , pickup_ph
237        and main pickup together.
238      - read meta file; read only what is needed to restart; stop if a field
239        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
240        if it make sense (even if the restart is not perfect).
241      - if no meta file, assume that pickup to read corresponds exactly to
242        a pickup that would currently be written.
243      - read pickup written in the old format (until checkpoint59i) if it
244        recognizes an old meta file (no field-list).
245      - add a meta file in exp. which starts from a pickup: 2 cases:
246        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
247         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
248        b) a meta file describing the content of the associated pickup file
249         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
250    o pkg/mdsio & pkg/rw:
251      - new routine to read a meta file ; new set of routine to read
252        Multiple-fields file (with meta file).
253    o added open boundary conditions capability for seaice
254        HSNOW, HSALT, UICE, and VICE
255    
256    checkpoint59i
257    o adjoint:
258      * fix multiDimAdvection adjoint
259        (partial recomputation problem by TAF for fVerT(:,:,kDown)
260        and comlev1 size definition (maxpass vs. max. number of tracers)
261      * verification/global_ocean.90x45x15 adjoint now tests
262        NLFS and multiDimAdvection using DST3 (=30)
263      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
264    o pkg/kpp: add "_d 0" to real constant (if missing);
265      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
266      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
267    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
268      for internal parameters related to restart process (formerly from PARAMS.h)
269      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
270    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
271      as argument. (only atm2d & obcs write_pickup have not yet been updated)
272    o pkg/monitor:
273      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
274      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
275      - account for deep Atmosphere factor and density factor (anelastic)
276    o added open boundary conditions capability for seaice HEFF and AREA
277    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
278      thermodynamics
279      - requires a little reorganization, which affects the testreport results
280        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
281        so that now the conservative form is tested
282      - add a few comments
283    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
284    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
285    o add new diagnostics to seaice: advective, diffusive fluxes (only for
286      multidim-advection, for scheme 2 they are not filled) and transports,
287      thermodynamic growth rates
288    o change units of EmPmR (inside the code, + within coupling interface)
289      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
290      Affects results @ truncation level (cg2d match) and update output of
291       experiments: lab_sea(6), global_ocean.90x40x15(10),
292      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
293      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
294      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
295      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
296    
297    checkpoint59h
298    o pkg/exf:
299      - improve vectorization by moving if-statement out of loops in
300        exf_mapfields, exf_radiation
301      - exf_bulkformulae.F: introduce 2D fields and vectorize code
302    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
303    o testreport:
304      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
305        monitor & update offline_exf_seaice exp. output.
306      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
307    o pkg/seaice:
308      - bug fix in the evp solver: boundary conditions were affected be
309        masking of zMax/zMin (changes results)
310      - minor bug fix in boundary conditions in seaice_calc_strainrates
311        (changes results for no_slip)
312      - seaice_lsr.F: make interpolation of eta dependent on boundaries
313      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
314      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
315        stress formulation and no-slip boundary conditions
316    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
317      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
318    o pkg/seaice: a first HSALT time stepping equation has been checked in
319    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
320      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
321      without requiring DO-IF statements
322    o pkg/thsice:
323      use continuous power-law function for partition of energy between lateral
324      melting/freezing and thinning/thickening ; old code using step function
325      still available with #undef THSICE_FRACEN_POWERLAW
326      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
327    o testreport: change AD testing : check against results/output_adm.txt
328      using same scripts as for forward test.
329    
330    checkpoint59g
331    o adjoint testing: in preparation for changing testreport:
332      - output format: cost and grad written on separated lines
333      - ad output results in directory "results" (instead of "results_ad")
334    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
335    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
336    o pkg/ecco: allow user defined cost function contributions
337    o testreport:
338      Allow to choose (per experiment) the list of tested output variables
339       and the main variable (used to issue a pass/FAIL ) ;
340      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
341      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
342      Also modify printing of summary:
343       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
344       b) echo the list of tested variables in the individual summary.txt of
345          each experiment.
346    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
347      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
348      (but still depend on the tile decompostion of the domain).
349    o pkg/seaice: change a discretization detail to make the B-grid code
350      "more symmetric". This change is likely to remove all "ridges/leads" that
351      where quasi-aligned with the grid in B-grid solutions. It may also be
352      the solution to the stress coupling issues with the B-grid.
353    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
354      remove .cvsignore from input dir. (since testreport no longer run here).
355    o pkg/thsice:
356     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
357     - fix reshaping of sea-ice just after advection:
358       melt all the ice only if ice-volume is too small.
359     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
360       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
361     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
362    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
363      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
364    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
365      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
366      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
367      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
368      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
369      -> update output.txt
370    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
371     this affects truncation error: -> update output.txt of exp:
372      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
373      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
374    
375    checkpoint59f
376    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
377    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
378      a bounded range (in forward mode)
379    o pkg/ecco, ctrl, autodiff and mom_common:
380     internal parameter controls, completements of implementations
381    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
382    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
383      (not seem any difference in testing results).
384    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
385       at face corners.
386    o pkg/generic_advdiff:
387     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
388      loop range indices for computing vertical advection tendency
389      and do the calculation in the interior only (no overlap) ;
390      for now, only implemented for SOM advection (to save CPU time).
391     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
392    o exch2 adjoint
393      First set of changes:
394      - add exch2 hand-written adjoint templates
395      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
396        This will require cleanup in pkg/autodiff/*.F
397        (changed routines currently kept separate in verif. code/)
398      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
399        that used to hide exch2 or cubed-sphere specific code
400        (commented via 'cph-exch2')
401    o pkg/seaice
402      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
403    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
404       output of global_ocean.cs32x15.thsice .
405    
406    checkpoint59e
407    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
408      for B-grid vector (not yet tested) and C-grid vector (<- only used
409      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
410    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
411      (#ifdef ALLOW_SALT_PLUME)
412    o gather_2d/scatter_2d: removed halo regions
413    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
414      scheme and the corresponding test case (under front_relax dir). For now,
415      only available with Skew-flux form and not yet tested in realistic set-up.
416      adjoint: store directives updated, but gradient checks deteriorated,
417      so maybe GM/Redi adjoint is now broken.
418    o seaice adjoint
419      * add AREA, HEFF, HSNOW as control variable
420        (should not change lab_sea results)
421      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
422    o pkg/seaice:
423      * added computation of saltFlux in seaice_growth;
424        For time being, sea ice salinity is assumed constant
425        contribution of snow flooding to freshening of sea ice is neglected.
426        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
427        defaults to 0.0 in order to maintain backward compatibility.
428        Typical values for SEAICE_salinity are 4 to 10 g/kg.
429      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
430      * added SEAICE_availHeatFrac, which specifies fraction of surface level
431        heat content used to melt or grow ice
432      * commented out cap of HICE: it helps keep ice thinner
433      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
434      * applied OBCS T/S mask to HEFFM sea ice mask
435    
436    checkpoint59d
437    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
438     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
439     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
440    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
441     and change default value of parameter "GM_Small_Number";
442     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
443       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
444       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
445    o pkg/ecco: cost function when applying pkg/smooth to controls
446    o pkg/ctrl: add forcingPrecond run time parameter
447    o pkg/seaice:
448     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
449     - fix bug in metric terms of u-equation in LSR solver (implicit part),
450       changes verification/lab_sea
451     - rearrange implicit part of u-equation in LSR solver to make it easier to
452       read, understand, and debug. This causes changes at the truncation level.
453     - fix (serious) bug in the boundary conditions (sign error in the implicit
454       part) of the LSR solver. Changes all LSR results.
455     - fixed problem with HSNOW initialization to avoid thick snow when AREA
456       is initilized with small values - does not change lab_sea results.
457     - added HsnowFile initialization capability
458    o pkg/smooth: addition to model/src and pkg/ctrl so allow
459     initialization of pkg/smooth and application to control vector
460    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
461    o dependencies: pkg/profiles requires pkg/cal
462    o pkg/profiles:
463     - added option ALLOW_PROFILES_GENERICGRID
464         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
465         that interpolation information (grid points and coefficients) is provided
466         within the netcdf input files.
467         -> sample matlab scripts can be found in MITgcm_contrib/gael
468         that allow you to prepare netcdf input files.
469     - also modified: cleaner include statements, cleaner error print statements,
470       cleaner stops when error, and more tests of the netcdf input files consistency.
471    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
472    o pkg/seaice:
473     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
474       requires a new routine: seaice_diagnostics_fill.F
475     - make sure that seaice does not move if not forced (pressure replacement
476       method, Hibler and Ip, 1995), changes results
477     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
478     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
479       It is turned off by default (=-1.), because it changes the results.
480     - make it possible to read AREA from a file, too.
481    
482    checkpoint59c
483    o add S/R and diagnostics for oceanic mixed-layer depth
484    o move GMRedi call after all vertical mixing schemes (including KPP)
485    o pkg/thsice:
486     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
487      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
488    o pkg/obcs:
489     - bug fix for balance code
490    o pkg/seaice:
491      - allow values of SEAICE_elasticParm > 1
492      - add new parameter SEAICE_evpTauRelax as an alternative
493        to SEAICE_elasticParm
494      - make lsr boundary conditions free slip (by default), changes result
495      - add code for no slip boundary conditions for lsr
496      - set minimum of zeta to zero (and not 4e8) (changes results)
497      - add a cap on AREA after advecting AREA if seaice_growth is not called
498    o change calculation of Visbeck K:
499      - no longer depend on tapering scheme; instead, compute slope (limited
500        by GM_maxSlope). this is equivalent to what was comuted before with
501        clipping or linear tappering.
502      - fix vertical averaging (wrong by 1/2 level)
503      - leave the old version (but will not be maintained) within
504        #ifdef OLD_VISBECK_CALC / #endif
505      - update output of exp. ideal_2D_oce
506    o change error catch in calc_r_star to improve vectorization
507    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
508      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
509    o adjoint:
510      Re-organized adjoint checkpointing according to Matt Mazloff
511      (but with modifs/completions/cleanups)
512      Storing is now bundled into large arrays to optimized I/O
513      (and second step in cleanup of the_main_loop)
514    
515    checkpoint59b
516    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
517      - export/import (between ocean & coupler) fields needed for ocean DIC.
518    o pkg/seaice:
519      - get rid of three more exchanges seaice_calc_viscosities (required
520        different loop boundaries in seaice_lsr and seaice_ocean_stress)
521      - bug fix in seaice_ocean_stress (update of lab_sea required)
522      - reduce loop boundaries to necessary minimum also in seaice_evp
523      - go back to the old way of computing deltaC/Z as the adjoint likes that
524        better
525    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
526      passive tracer to an Age Tracer) + update output.txt
527    o pkg/exf:
528      - implement A-grid / C-grid selection for wind-stress input files.
529      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
530      for now, in exf_bulk_largeyeager04.F only :
531      - change implementation for case where windspeed + 2. components wind-stress
532        are read-in. AND use rhoConstFresh to convert evap.
533    o pkg/seaice:
534      - use correct EXCH_UV for wind-forcing (on A-grid).
535      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
536        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
537    o pkg/exf:
538      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
539      EXF_INTERPOLATION:
540      - merge global_with_exf/code version of exf_interp_read.F
541        to the main code ;
542      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
543        reading the file ; Important: This options needs to be defined to recover
544        previous code.
545        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
546      - no longer loose real*8 precision along the way when using exf_iprec=64.
547  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)  o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
548      - change discretisation of evp-solver in order to avoid another exchange
549        (changes lab_sea) and clean up a little
550      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
551        help the adjoint (this also changes the results slightly)
552      - add a few "_d 0" where they had been missing in seaice_evp.F
553      - cleaning up: remove unused seaice_calc_rhs.F
554  o pkg/exf: some cleaning-up:  o pkg/exf: some cleaning-up:
555    - change various "constants" into runtime parameters    - change various "constants" into runtime parameters
556    - cleaned-up Large&Yeager04 routine which should eventually    - cleaned-up Large&Yeager04 routine which should eventually
# Line 18  o pkg/exf: some cleaning-up: Line 564  o pkg/exf: some cleaning-up:
564  o pkg/thsice:  o pkg/thsice:
565   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
566    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
567    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
568    and in thsice_extend.F:    and in thsice_extend.F:
569    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
570    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
# Line 34  o pkg/kpp Line 580  o pkg/kpp
580  o pkg/seaice  o pkg/seaice
581   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
582   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
583    o OpenAD
584     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
585    
586  checkpoint59a  checkpoint59a
587  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 53  o in FFIELDS.h: Line 601  o in FFIELDS.h:
601       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
602  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
603  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
604      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
605        are no longer updating the vertical diffusivity array
606        (passed as argument) but are (re-) setting those arrays.
607  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
608    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
609      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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