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revision 1.905 by mlosch, Wed Nov 7 11:13:21 2007 UTC revision 1.997 by jmc, Thu May 29 21:33:14 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59r
8    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
9      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
10      fix option to read coriolis(@ cell-corner) from files with CS-grid.
11    o pkg/mnc: add some attributes to standard 1D-coordinate variables
12    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
13      mass points, when using mnc for output
14      - add runtime parameter (missing_value, missing_value_int) to override
15        default (which is the value of getcon('UNDEF'))
16    o pkg/mnc: prepare mnc for the actual use of missing values with the
17      diagnostics package: small fix in mnc_cw_readwrite.template and more
18      initialisation of never used fields
19      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
20      versions
21    o pkg/thsice/thsice_ini_vars.F added default initial values so that
22      thermodynamics sea ice solver does not blow up when some initial fields
23      are missing.
24    o move from external_forcing_surf.F to ini_forcing.F
25      the p-coord. hack consisting in using pLoad to set phi0surf ;
26      update output of tutorial_global_oce_in_p (affected @ truncation level).
27    o Freshen up a bit hs94.1x64x5, notably:
28      remove rotationPeriod and tRef=5*0. (adjoint only), and add
29      exactConserv=.TRUE.
30    o pkg/generic_advdiff:
31      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
32      applies to files where Temperature & Salinity 2nd Order moments are used.
33    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
34      this uses a dynamically allocated internal state data structure
35      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
36      and requires a fortran 90 compiler
37    
38    checkpoint59q
39    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
40       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
41    o Refresh tutorial_global_oce_biogeo, notably:
42      - change bathymetry (put back seamounts in ACC, use hFacs)
43      - change EOS (POLY3 --> JMD95Z)
44      - use Bryan-Lewis vertical diffusivity
45      - use multidimensional advection
46      - remove old virtual virtual in dic pkg, now done through ptracer pkg
47      - change a couple of parameters in dic pkg
48    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
49    o pkg/obcs: change default to OBCSfixTopo = .true.,
50      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
51      - replace "debugMode" with "debugLevel .GE. debLevB"
52    o implementation of TAF directives for gchem,cfc,dic
53    o remove "exp5" (replaced by tutorial_deep_convection).
54    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
55      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
56      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
57      --> changes results in exp4, seaice_obcs
58    o tutorial_deep_convection :
59      update the set-up and increase resolution and domain size ; start
60      from pseudo initial conditions = output at t=120mn in order to see
61      something happening when running testreport.
62    o pkg/seaice: add os7mp as an advection scheme
63                  add check for advection schemes
64                  add a flag for restoring T and S underneath sea ice
65    o pkg/my82: add netcdf-support and diagnostics
66    o thsice pkg:
67      - Now hsMax limits snow height by turning it into ice following
68        flooding scheme (and now conserving energy)
69      - Slight rewriting of the formula in thsice_calc_thick.F
70      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
71      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
72    
73    checkpoint59p
74    o gchem / dic / cfc :
75      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
76      - add new parameter files: "data.dic" & "data.cfc" ;
77      - various re-arrangement in initialisation & header file ;
78      - fix tutorial_global_oce_biogeo for multi-threaded test.
79    o pkg/dic: test for "pickup_dic" file when restarting ;
80      if no pickup-file, can restart with a re-initialised pH (same as it did
81      before) providing pickupStrictlyMatch is set to False.
82    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
83      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
84    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
85      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
86    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
87     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
88       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
89    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
90       scheme to use for vorticty-term ;
91     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
92       (with default selectVortScheme, return to original discretisation)
93     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
94    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
95    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
96      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
97      also fix diagnostics VISCAHW & VISCA4W.
98    
99    checkpoint59o
100    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
101    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
102      move a few statemens out the main loop into separate loops
103    o pkg/shelfice:
104      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
105        (kg/m^2/s), does not break tests, because in verification/isomip,
106        rhoConstFresh=rhoConst (by accident)
107      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
108      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
109        new file model/src/seawater.F, so that they are available for all pkgs.
110      - convert potential temperature into in-situ temperature. This changes the
111        isomip tests => update tests
112    o add a flag writePickupAtEnd (default=true) to be able to suppress
113      writing a pickup at the last timestep
114    o tools/mpack-1.6 :
115      - disable automake (not working) and autoconf (not needed).
116      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
117        also cleaner with much less compilation warnings.
118    o pkg/profiles:
119      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
120      (for "less than 32 characters name" compiler requirement)
121    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
122      conditions that have a different sampling frequency than S/T/U/V obcs
123    o pkg/diagnostics (stats-diags):
124      - fix global Min/Max in case 1 processor get only empty tiles
125    o genmake2: replace (4 times)
126         make genmake_tc_1.o >> genmake_warnings 2>&1
127      with
128         COMM="$CC $CFLAGS -c genmake_tc_1.c"
129         echo $COMM >> genmake_warnings
130         $COMM >> genmake_warnings 2>&1
131      to make genmake2 always see the value of CC as specified in the optfile.
132    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
133      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
134      - modify verification advect_cs test to test SOM-advection on CS-grid.
135    o pkg/ctrl:
136      - Rewrite of ctrl_map_ini_ecco.F,
137        introducing a generic routine (ctrl_map_ini_gen.F).
138      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
139    
140    checkpoint59n
141    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
142      number in dedicate array "hdiag":
143      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
144        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
145      - many small changes (integer format) for large number of diagnostics
146      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
147        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
148    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
149      usingSphericalGrid, this allows to define the rotated grid coordinates
150      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
151      geographical coordinates according to the inverse of the rotation defined
152      by the Euler angles, so that Coriolis parameter and online-interpolation by
153      exf works with the geographical coordinates on XC/YC/XG/YG.
154      Naturally, this feature does not work with all packages, so some
155      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
156      profiles), because there the coordinates are assumed to be regular
157      spherical grid coordinates.
158    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
159      - introduce isopycnal diffusion coefficient control.
160    o tools/adjoint_options:
161      - additional control vector components.
162    o pkg/mnc: have mnc create marginally meaning full coordinate variables
163      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
164    o pkg/mypackage:
165      - add example of read/write pickup for state-var ;
166      - add entry points to the main code for state-vars diags & write-pickup.
167    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
168      transitions for useExfYearlyFields
169      - add new subroutine that determines the file to read from for
170        use*YearlyFields = .TRUE. and .FALSE.
171      - add a verification experiment to global_with_exf that tests
172        useExfYearlyFields with USE_EXF_INTERPOLATION defined
173    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
174      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
175      subroutines (which could be generated from a template, because they are
176      almost identical), for now they are included in obcs_prescribe_read.F for
177      simplicity
178    o pkg/exf:
179      - add a little more diagnostic to exf_interp_read (in analogy to
180        mds_read_field, can be turned off with debugLevel < debugLevA=1)
181      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
182        ugly but fast by unrolling short inner loops, inserting a unroll=8
183        directive in routine lagran, and splitting a loop and making do while the
184        outermost loop (the latter requires the intoduction of index arrays)
185    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
186    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
187      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
188    o verification/seaice_obcs: updated for restart test and latest options
189    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
190      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
191      for now this is only available for the C-grid code and also within
192      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
193    
194    checkpoint59m
195    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
196      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
197    o gad_som : fix flux output (& diagnostics) to have same units as other  
198      advection scheme fluxes (was previously multiplied by deltaT).  
199    o added verification/seaice_obcs both to test seaice open boundaries
200      and to provide an example matlab scrpt for generating them
201    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
202    o pkg/salt_plume: clean up salt_plume_frac.F to
203      remove redundancy in PlumeMethod 1 and 4
204    o pkg/kpp: added saltplume diagnostics
205    o pkg/obcs and pkg/seaice:
206      - do not set uice and vice to zero when OB*icefile are unspecified
207      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
208      - moved seaice tracer obcs after call to seaice_growth
209    o pkg/salt_plume: added various options for salt plume depth
210      criterion and for vertical distribution of the salt
211    
212    checkpoint59l
213    o pkg/ptracers: new version of ptracers pickup:
214      read meta file and write only fields which are needed to restart.
215      ( same logic as main pickup file ; also using pickupStrictlyMatch )
216    o pkg/seaice:
217      - add timescale for melting due to warm mixed layer as a means of
218        setting SEAICE_availHeatFrac more conveniently
219      - add a CPP-flag/runtime parameter check for flooding algorithm
220      - reformulated availHeat in seaice_growth.F to be independent of AREA
221    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
222      unit changes
223    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
224    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
225      SX vector computer.
226    o pkg/seaice:
227      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
228        seaice forcing fields can now be read only through pkg/exf
229      - removed some unused halos
230    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
231    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
232      or U/VICE from U/VWIND before computing U/VSTRESS
233    
234    checkpoint59k
235    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
236      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
237    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
238      all experiments pass when compile with un-initialised var. checking option.
239    o added pkg/salt_plume
240    o script to test restart (for now, in MITgcm_contrib/jmc_script)
241    o pkg/seaice: new read/write pickup version.
242      read meta file and write only fields which are needed to restart.
243      ( same logic as main pickup file ; also using pickupStrictlyMatch )
244    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
245    o lab_sea.hb87: modify the domain & update output.hb87.txt :
246      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
247      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
248      process. Fixed here by closing the domain at the Northern boundary.
249    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
250    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
251      a set of consecutive levels in/from a 3-D array.
252    o pkg/ptracers:
253      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
254      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
255    
256    checkpoint59j
257    o in pkgs: dic, obcs, offline, rbcs:
258      standard way to compute coeff. for time interpolation between 2 time reccords
259      which retains full precision (& make results less dependent on compiler).
260      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
261  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those  o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
262    packages instead of reading ice cover and wind speed separately    packages instead of reading ice cover and wind speed separately
263  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h  o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h

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