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revision 1.1522 by mlosch, Wed Oct 26 09:30:32 2011 UTC revision 1.1576 by jmc, Fri Jan 20 01:30:45 2012 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 (with exch2):
8      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
9        and remove code (in obcs_readparms.F) which was based on EXCH of indices
10        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
11    o pkg/exf and seaice exp:
12      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
13        so that switching off area & heff advection flags does not affect results.
14      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
15      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
16        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
17        results of verification experiments: 1D_ocean_ice_column(fwd),
18        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
19        and offline_exf_seaice (all 4).
20    o pkg/seaice:
21      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
22        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
23      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
24        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
25        not multi-dim advection;
26      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
27        SHORTWAVE_HEATING #undef.
28    o optim: make Makefile more robust (?)
29    o pkg/obcs:
30      * fix treatment of obcs_read_pickup for TAF
31    o pkg/shelfice:
32      * add missing initialisation of num_shifwflx
33      * new adjoint verification exp. for isomip
34      * change Prandtl and Schmidt numbers from generic formulations
35        (in terms of model diffus. and visc.) to separate runtime
36        parameters, with Holland and Jenkins (1999) default values.
37    o pkg/exf (interpolation):
38      - extended input field (2 rows) near the N & S poles:
39        * fill in with the symetric value (when even Nb of data in longitude)
40        * add average value at the poles only for scalar quantities ; for vector
41          component interpolation, skip the averaging and keep duplicated values,
42          unless the 2 components have same location (uvInterp=T) in which case
43          interpolate the 2 components together using S/R EXF_INTERP_UV.
44      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
45        together: this allows to account properly for local orientation when
46        averaging at N & S pole.
47      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
48        exf-interpolation near N & S poles. Undef by default.
49      - add debug check/print on 1rst iter if debugLevel >=2.
50    o pkg/exf:
51      - change masking flags definition (no longer "parameter"), put them in
52        common block and set them in S/R EXF_INIT_FIXED.
53      - change recognized masking flag from s,u,v to c,w,s since the mask
54        to use (maskC,W,S) depends on position on model grid and has little to
55        do with scalar/vector difference; fix masking if using P-coordinates.
56      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
57        and update results of exp. global_with_exf (x2).
58      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
59    o pkg/obcs
60      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
61    o pkg/exf (interpolation):
62      - assume periodicity in X only if input field cover full longitude range.
63      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
64        and should vectorise).
65      - fix input lat of the 2 added row (in case we provide N.pole data).
66    
67    checkpoint63h (2011/12/30)
68    o pkg/seaice:
69      - change declaration of UVM from _RL to _RS in order to get B-grid
70        uIce,vIce monitor when _RS = real*4
71    o pkg/offline:
72      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
73      - compute vertical velocity if not read from file (switch on exactConserv
74        & staggerTimeStep);
75      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
76    o verification:
77      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
78        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
79        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
80      - update output of exp. global_ocean.cs32x15.viscA4 after changing
81        grid-file angles (used here for coriolis-3d);
82      - remove (or gzip) few files not needed to run fizhi-cs experiments.
83    o pkg/exf (vector interpolation):
84      - rotate vector component toward local grid-axis orientation using grid-angles
85        (stored in GRID.h) instead of locally computed rotation angle; keep old code
86        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
87    o pkg/seaice:
88      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
89        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
90    o pkg/PKG_OPTIONS.h files:
91      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
92        outside of the #ifdef ALLOW_THISPKG / #endif block.
93      - update verification/*/code/PKG_OPTIONS.h files.
94    o add a verification experiment (offline_exf_seaice/input.seaice) that test
95      the B-grid LSOR solver
96    o pkg/seaice: sort out emissivity and long wave radiation step 2:
97      - add emissivity for snow and ice as new run-time parameters
98        (unfortunately) that default to the corresponding exf values; this
99        changes results in most verification experiments so that for backward
100        compatibility these parameter have to be set explicitly to inconsistent
101        values (ugly);
102      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
103        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
104        until we agree how to handle this bug properly
105    o pkg/exf (interpolation):
106      - add a set of run-time param ({inputfield}_interpMethod), one for
107        each interpolated input field, to select the interpolation method
108        with a value of zero switching off the interpolation;
109      - print interpolation parameters to standard output;
110      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
111        (to use instead runoff_interpMethod=0 in data.exf).
112      - simplify default setting of interpolation parameters (for all fields,
113        set position to match model grid cell-center position, leading to trivial
114        interpolation in case of regular Lat-Lon grid) and fix for the case of
115        non-uniform delY.
116    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
117       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
118       this factor is absolutely required, because the lw exitance (= out-going
119       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
120       where the reflectivity rho = 1-emissivity for conservation reasons. Once
121       this is established, we can remove the CPP-Flag (if we want to).
122    o pkg/seaice:
123      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
124        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
125      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
126        what the name implies (and not emissivity*BoltzmannConstant), this means
127        the old default value of 5.5e-8 now means
128        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
129        S/R exf_readparms
130      - FV-discretization of the B-grid LSOR solver, turn on with
131        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
132        of the calling routine dynsolver, so that B and C-grid code look a
133        little more alike.
134      - fix index bugs in ostres.F (B-grid code)
135    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
136    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
137      default for SEAICE_emissivity, if useEXF; requires setting a wrong
138      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
139      backward compatiblity
140    o model/src: use sigmaR in calc_ivdc
141    
142    checkpoint63g (2011/12/16)
143    o pkg/seaice/seaice_growth.F:
144      fix heat conservation of the coupled ocean-seaice system.
145      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
146      solid vs liquid water treatment is resolved via QNET.
147    o pkg/seaice/seaice_growth.F:
148      add missing term for sublimation in saltFlux, which was breaking conservation.
149    o pkg/seaice/seaice_model.F:
150      Remove this patholigical case treatment in evolution branch,
151      where it is un-necessary and breaks conservation.
152      Update global_ocean.cs32x15/results accordingly for
153      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
154    o model/src:
155      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
156      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
157    o pkg/obcs:
158      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
159      tendency for temperature and salinity that is then applied to update
160      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
161      horizontal advection and diffusion contributions on the boundary (in
162      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
163      removing the mask in S/R timestep_tracer. The advantage of this approach is
164      that the updated tracer values include contributions from the surface
165      forcing and vertical diffusion.
166      This modification changes exp4.stevens because of vertical diffusion.
167    o model/src:
168      change non-curvilinear grid setting to also work with exch2 + blank tiles:
169      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
170        face dimensions.
171      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
172        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
173        and INI_SPHERICAL_POLAR_GRID.
174      change test-experiment global_ocean.90x40x15:
175      - split the domain in many more tiles (9x4 tiles of 10x10 each);
176      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
177      - update results of both test (std & dwnslp).
178    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
179       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
180    o model/src:
181      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
182        and fix initialisation when using sigma-coords.
183    o model/src:
184     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
185       to their current value at the beginning of forward_step.F": add a new run-time
186       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
187     - set doResetHFactors=T in the following test exp:
188        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
189        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
190        and tutorial_global_oce_in_p (nonLinFS in p)
191    o pkg/ecco
192      - added IES cost term
193    o verification/advect_xz
194      - scale down the depth by 1/100 (from 200 km to just 2.km)
195      - add secondary test using divergent flow, r-star and implicit vertical advection.
196      - add note (check_conserve_TS.txt) and matlab script to check global
197        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
198    o pkg/rbcs:
199      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
200    o pkg/obcs (Stevens BCs):
201      - fix various problems in the phase speed computations of the Stevens
202        boundary conditions:
203        - sign error for western and southern boundaries,
204        - time tendencies were underestimated by factor of dTracerLev and some just
205          zero (for multidim advection schemes) -> now estimate time tendencies
206          from difference between previous (n) time level and the one before (n-1);
207          this requires storing a field per tracer per boundary, also in the pickup
208          files.
209        - replace deltaTmom in cflMer/Zon computation with dTracerLev
210        - set default phase velocity to cflMer/Zon
211      - update verification experiment exp4.stevens
212    o pkg/generic_advdiff (implicit_r):
213      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
214        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
215      - fix implicit vertical diffusion or advection with NonLin FreeSurf
216        (was using current recip_hFacC instead of future recip_hFacC): set future
217        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
218        solver S/R ;
219      - fill diagnostics of vertical advective fluxes (computed from tendency)
220        when using implicit vert. advection;
221      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
222         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
223         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
224         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
225    o pkg/diagnostics:
226      - add diags for T & S tendency which goes through Adams-Bashforth.
227    
228    checkpoint63f (2011/11/30)
229    o pkg/obcs/obcs_calc_stevens.F:
230      - join some loops to reduce number of if-statements
231      - fix a bug in code for northern and southern boundaries.
232    o pkg/seaice/seaice_init_varia.F
233      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
234        caused zero ice-velocities for the B-grid code
235    o pkg/seaice/seaice_init_fixed.F
236      - fix a bug in the initialisation of the second metric terms
237        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
238      - this affects all seaice configurations with useCurviLinearGrid = .true.
239        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
240        = .true. (default)
241      - the only verification experiment affected is global_ocean.cs32x15:
242        icedyn, seaice, and seaice_dynmix (AD)
243    o pkg/thsice/thsice_diagnostics_state.F
244      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
245        not contain garbage that can lead to surprises in diagstats_calc.F
246    o model/src:
247      - move bi,bj loops inside INTEGR_CONTINUITY ;
248      - call INTEGR_CONTINUITY directly from forward_step.F
249        (previously called from momentum_correction_step.F)
250      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
251        forward_step.F and pkg/ecco/the_main_loop.F
252    o model/src/do_oceanic_phys.F:
253      - reset addMass to zero only if useICEFRONT ;
254      - separated k-loop for rhoInSitu calculation ;
255      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
256        and at constant T,S (= WdRHOdP);
257      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
258        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
259        transport of locally-referenced potential density);
260        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
261    o gluemnc:
262      - replace ncrcat with ncks when adding variables to *.glob.nc
263      - change the way variables without record dimensions are handled so that
264        files that have variables with and without record variables can be glued:
265        add a record dimension with a new unique name to be able to differentiate
266        between variable with and without a-prior record dimensions. Remove
267        this record dimension before adding the variable to the *.glob.nc file.
268        This procedure automatically works also for grid.*.nc files that do not
269        have any record dimension.
270    o verification/cpl_aim+ocn:
271      - generate new reference output on baudelaire (gfortran, mpich2) (previously
272        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
273    o pkg/obcs/obcs_calc_stevens.F:
274      - add code for northern and southern boundaries.
275      - reorder some loops to save some operations and so that drFBar can be scalar
276    o model/src:
277      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
278        truncation) and add diagnostics for Adams-Bashforth tendency increment.
279      - update test-exp. AD output:
280        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
281      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
282        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
283        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
284        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
285        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
286        tutorial_plume_on_slope.
287    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
288      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
289      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
290      does not even come with an F77 compiler anymore, this should not be
291      a limitation
292    
293    checkpoint63e (2011/11/06)
294    o pkg/seaice adjoint of LSR:
295      - substantially rework STORE dirs.
296      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
297        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
298        and only perform SOLV_MAX_FIXED adjoint iters.
299        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
300        always goes to same record, meaning that the last forward field will be
301        the one used in the adjoint - an approximation.
302      - now produces non-zero LSR-related gradients, and acceptable gradients for
303        An's zonal (x-z) test case (to be checked in)
304      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
305        (but these are screwed up by the thermodynamics in the first place);
306        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
307        output_adm.txt also reflects changes to seaice_lsr
308      - global_ocean.cs32x15:
309        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
310          (output_adm.seaice.txt was updated)
311        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
312          (output_adm.seaice_dynmix.txt)
313    o test-exp. exp4+stevens:
314      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
315    o pkg/seaice (lsr solver):
316      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
317        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
318      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
319      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
320        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
321      - compute (with new S/R) and print initial (+ free-driff sol. if available)
322        and final residual of linearised system.
323  o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity  o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
324    (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)    (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
325  o pkg/obcs: Stevens BCs (still only for east and west)  o pkg/obcs: Stevens BCs (still only for east and west)
326    - fix Stevens BCs by using intermediate velocities of previous    - fix Stevens BCs by using intermediate velocities of previous
327      time step as "baroclinic" contribution rather velocity of one grid cell      time step as "baroclinic" contribution rather velocity of one grid cell
328      inside the boundaries; more consistent but makes the entire treatment      inside the boundaries; more consistent but makes the entire treatment
329      more complicated, requires new pickup files and two new S/Rs:      more complicated, requires new pickup files and two new S/Rs:
330      obcs_copy_uv_n and obcs_save_uv_n      obcs_copy_uv_n and obcs_save_uv_n
331      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
332      (undefined by default)      (undefined by default)
333    - silently move computation of some grid factors into separate loops to    - silently move computation of some grid factors into separate loops to
334      save some recomputations      save some recomputations
335    - add a hack for non-linear free surface    - add a hack for non-linear free surface
336    - add a verification experiment to exp4 that tests this code    - add a verification experiment to exp4 that tests this code

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