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revision 1.930 by atn, Fri Dec 21 02:54:34 2007 UTC revision 1.1036 by jmc, Mon Oct 27 20:15:21 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 fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
8      (#undef REAL4_IS_SLOW)
9     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
10       coordinate variable
11     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
12       (surface forcing fields), removes some of the functionality
13     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
14     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
15       probably not all: copy _RS surface flux fields to RL field before
16       calling DIAGNOSTICS_FILL
17     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
18       real*4 (CALL EXCH_*_RS) versions.
19     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
20       (generate new output).
21    
22    checkpoint61e
23    o gmredi (Visbeck-variable-K):
24      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
25      - change computation of Visbeck-K where Slope > Smax :        
26        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
27        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
28    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
29      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
30    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
31    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
32      does not become too large (to avoid precision problems in implicit-diffusion
33      solver); update ideal_2D_oce output.
34    o pkg ggl90:
35      - in ggl90_cal.F: compute only one set of visc/diff, used to
36        step forward TKE/T/S/momentum
37      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
38        have Prandlt =1)
39    o gmredi (fm07):
40      - add lower limit on Transition layer thickness + lower limit on 1/lambda
41      - allow to set few more params from data.gmredi
42    o pkg ggl90:
43          - add missing sqrt(2) factor in computation of mixing length
44            scale in ggl90_calc.F
45            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
46    
47    checkpoint61d
48    o adjoint modifs
49      - adapt to new field rhoInSitu
50      - allow to revert from StoreDynVars2D, StoreDynVars3D
51        to individual fields
52        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
53    o store 3-D (in-situ) density in commom block (DYNVARS.h)
54     - save 1 rho computation.
55     - no longer modify T & S inland when using down_slope pkg.
56    o gad_som : allow to switch to SOM advection for T & S without corresponding
57      pickup files (using new S/R: MDS_CHECK4FILE).
58    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
59      (for useSingleCpuIO to work in multi-threaded)
60    o pkg/shelfice:
61     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
62       with SHELFICEtopoFile in data.shelfice
63     - move code for reading ice shelf topography and modifying hFacC into separate
64       subroutines of the shelfice package
65     - separate initialisation of "fixed" and "variable" variables
66     - kTopC is not (yet) replaced by kSurfC, although this is possible
67    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
68    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
69      and rename:
70      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
71      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
72    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
73    
74    checkpoint61c
75    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
76      to add mass source/sink of fluid in the interior (3-D generalisation
77      of oceanic real-fresh water flux).
78    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
79    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
80    o new pkg: down_slope
81      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
82      - presently, modify T & S inland (dwnslp_calc_rho.F).
83        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
84      - implementation for ocean in P-coords not tested.
85      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
86    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
87      (to facilitate conversion of oceanic pkg to p-coordinate).
88    o change FIND_RHO to FIND_RHO_2D :
89      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
90    o new pkg: cheapaml
91    
92    checkpoint61b
93    o exch2:
94      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
95      - no longer depend on the order sequence (N,S,E,W).
96      - 3rd exchange no longer needed (tested with 24 tiles).
97      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
98      - exch_UV_A-grid readily available (but not yet tested).
99      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
100      (both are no longer needed) in exch_uv: no effect in forward run; but
101       get truncation error differences with adjoint exch.
102    o exch2:
103     - change index-bounds storage (moved from target to local tile,
104       more intuitive this way) ; rename/remove some variables.
105     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
106    
107    checkpoint61a
108    o exch2/matlab-topology-generator:
109      fix bug in index bounds for N-S internal exchange (hard to tell if this
110      had any effect on the solution).
111    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
112      is exceeded
113    o testreport: modify syntax of awk, so that it works also with
114      awk, and not only with nawk and gawk
115    
116    checkpoint61
117    o autodiff
118      Change default for TAF usage by removing argument '-nonew_arg'
119      This changes TAF subroutine argument list (ordering of active var.)
120      Omission of this flag leads to incompatibility w.r.t. TAMC
121      To restore TAMC-compatibility, need following modifs:
122      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
123      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
124      Tested TAF version is 1.9.22
125      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
126    
127    checkpoint60
128    --->>> This is the last checkpoint for which generating the adjoint
129    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
130    --->>> by default.
131    --->>> Future checkpoints will ommit this flag by default.
132    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
133    o pkg/grdchk: Add gradient check to etan0 perturbations.
134    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
135    o pkg/autodiff: more flexibility in zeroadj.
136      model/src: modifying do_oceanic_phys.F accordingly.
137    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
138    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
139      special setup of gmredi for which the adjoint is stable
140      enough for parameter optimization.
141    o bridging the gap between eddy stress and GM.
142      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
143          along with a change in CPP option (now ALLOW_EDDYPSI).
144      -> when using GM w/ GM_AdvForm:
145          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
146          is applied either in the tracer Eq. or in momentum Eq.
147          depending on data.gmredi (intro. GM_InMomAsStress).
148      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
149      The key modifications are in model/src/taueddy_external_forcing.F
150      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
151    
152    checkpoint59r
153    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
154      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
155      fix option to read coriolis(@ cell-corner) from files with CS-grid.
156    o pkg/mnc: add some attributes to standard 1D-coordinate variables
157    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
158      mass points, when using mnc for output
159      - add runtime parameter (missing_value, missing_value_int) to override
160        default (which is the value of getcon('UNDEF'))
161    o pkg/mnc: prepare mnc for the actual use of missing values with the
162      diagnostics package: small fix in mnc_cw_readwrite.template and more
163      initialisation of never used fields
164      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
165      versions
166    o pkg/thsice/thsice_ini_vars.F added default initial values so that
167      thermodynamics sea ice solver does not blow up when some initial fields
168      are missing.
169    o move from external_forcing_surf.F to ini_forcing.F
170      the p-coord. hack consisting in using pLoad to set phi0surf ;
171      update output of tutorial_global_oce_in_p (affected @ truncation level).
172    o Freshen up a bit hs94.1x64x5, notably:
173      remove rotationPeriod and tRef=5*0. (adjoint only), and add
174      exactConserv=.TRUE.
175    o pkg/generic_advdiff:
176      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
177      applies to files where Temperature & Salinity 2nd Order moments are used.
178    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
179      this uses a dynamically allocated internal state data structure
180      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
181      and requires a fortran 90 compiler
182    
183    checkpoint59q
184    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
185       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
186    o Refresh tutorial_global_oce_biogeo, notably:
187      - change bathymetry (put back seamounts in ACC, use hFacs)
188      - change EOS (POLY3 --> JMD95Z)
189      - use Bryan-Lewis vertical diffusivity
190      - use multidimensional advection
191      - remove old virtual virtual in dic pkg, now done through ptracer pkg
192      - change a couple of parameters in dic pkg
193    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
194    o pkg/obcs: change default to OBCSfixTopo = .true.,
195      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
196      - replace "debugMode" with "debugLevel .GE. debLevB"
197    o implementation of TAF directives for gchem,cfc,dic
198    o remove "exp5" (replaced by tutorial_deep_convection).
199    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
200      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
201      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
202      --> changes results in exp4, seaice_obcs
203    o tutorial_deep_convection :
204      update the set-up and increase resolution and domain size ; start
205      from pseudo initial conditions = output at t=120mn in order to see
206      something happening when running testreport.
207    o pkg/seaice: add os7mp as an advection scheme
208                  add check for advection schemes
209                  add a flag for restoring T and S underneath sea ice
210    o pkg/my82: add netcdf-support and diagnostics
211    o thsice pkg:
212      - Now hsMax limits snow height by turning it into ice following
213        flooding scheme (and now conserving energy)
214      - Slight rewriting of the formula in thsice_calc_thick.F
215      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
216      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
217    
218    checkpoint59p
219    o gchem / dic / cfc :
220      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
221      - add new parameter files: "data.dic" & "data.cfc" ;
222      - various re-arrangement in initialisation & header file ;
223      - fix tutorial_global_oce_biogeo for multi-threaded test.
224    o pkg/dic: test for "pickup_dic" file when restarting ;
225      if no pickup-file, can restart with a re-initialised pH (same as it did
226      before) providing pickupStrictlyMatch is set to False.
227    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
228      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
229    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
230      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
231    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
232     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
233       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
234    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
235       scheme to use for vorticty-term ;
236     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
237       (with default selectVortScheme, return to original discretisation)
238     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
239    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
240    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
241      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
242      also fix diagnostics VISCAHW & VISCA4W.
243    
244    checkpoint59o
245    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
246    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
247      move a few statemens out the main loop into separate loops
248    o pkg/shelfice:
249      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
250        (kg/m^2/s), does not break tests, because in verification/isomip,
251        rhoConstFresh=rhoConst (by accident)
252      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
253      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
254        new file model/src/seawater.F, so that they are available for all pkgs.
255      - convert potential temperature into in-situ temperature. This changes the
256        isomip tests => update tests
257    o add a flag writePickupAtEnd (default=true) to be able to suppress
258      writing a pickup at the last timestep
259    o tools/mpack-1.6 :
260      - disable automake (not working) and autoconf (not needed).
261      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
262        also cleaner with much less compilation warnings.
263    o pkg/profiles:
264      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
265      (for "less than 32 characters name" compiler requirement)
266    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
267      conditions that have a different sampling frequency than S/T/U/V obcs
268    o pkg/diagnostics (stats-diags):
269      - fix global Min/Max in case 1 processor get only empty tiles
270    o genmake2: replace (4 times)
271         make genmake_tc_1.o >> genmake_warnings 2>&1
272      with
273         COMM="$CC $CFLAGS -c genmake_tc_1.c"
274         echo $COMM >> genmake_warnings
275         $COMM >> genmake_warnings 2>&1
276      to make genmake2 always see the value of CC as specified in the optfile.
277    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
278      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
279      - modify verification advect_cs test to test SOM-advection on CS-grid.
280    o pkg/ctrl:
281      - Rewrite of ctrl_map_ini_ecco.F,
282        introducing a generic routine (ctrl_map_ini_gen.F).
283      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
284    
285    checkpoint59n
286    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
287      number in dedicate array "hdiag":
288      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
289        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
290      - many small changes (integer format) for large number of diagnostics
291      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
292        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
293    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
294      usingSphericalGrid, this allows to define the rotated grid coordinates
295      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
296      geographical coordinates according to the inverse of the rotation defined
297      by the Euler angles, so that Coriolis parameter and online-interpolation by
298      exf works with the geographical coordinates on XC/YC/XG/YG.
299      Naturally, this feature does not work with all packages, so some
300      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
301      profiles), because there the coordinates are assumed to be regular
302      spherical grid coordinates.
303    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
304      - introduce isopycnal diffusion coefficient control.
305    o tools/adjoint_options:
306      - additional control vector components.
307    o pkg/mnc: have mnc create marginally meaning full coordinate variables
308      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
309    o pkg/mypackage:
310      - add example of read/write pickup for state-var ;
311      - add entry points to the main code for state-vars diags & write-pickup.
312    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
313      transitions for useExfYearlyFields
314      - add new subroutine that determines the file to read from for
315        use*YearlyFields = .TRUE. and .FALSE.
316      - add a verification experiment to global_with_exf that tests
317        useExfYearlyFields with USE_EXF_INTERPOLATION defined
318    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
319      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
320      subroutines (which could be generated from a template, because they are
321      almost identical), for now they are included in obcs_prescribe_read.F for
322      simplicity
323    o pkg/exf:
324      - add a little more diagnostic to exf_interp_read (in analogy to
325        mds_read_field, can be turned off with debugLevel < debugLevA=1)
326      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
327        ugly but fast by unrolling short inner loops, inserting a unroll=8
328        directive in routine lagran, and splitting a loop and making do while the
329        outermost loop (the latter requires the intoduction of index arrays)
330    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
331    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
332      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
333    o verification/seaice_obcs: updated for restart test and latest options
334    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
335      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
336      for now this is only available for the C-grid code and also within
337      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
338    
339    checkpoint59m
340    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
341      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
342    o gad_som : fix flux output (& diagnostics) to have same units as other  
343      advection scheme fluxes (was previously multiplied by deltaT).  
344    o added verification/seaice_obcs both to test seaice open boundaries
345      and to provide an example matlab scrpt for generating them
346    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
347    o pkg/salt_plume: clean up salt_plume_frac.F to
348      remove redundancy in PlumeMethod 1 and 4
349  o pkg/kpp: added saltplume diagnostics  o pkg/kpp: added saltplume diagnostics
350  o pkg/obcs and pkg/seaice:  o pkg/obcs and pkg/seaice:
351    - do not set uice and vice to zero when OB*icefile are unspecified    - do not set uice and vice to zero when OB*icefile are unspecified

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