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revision 1.913 by jmc, Wed Nov 28 16:52:16 2007 UTC revision 1.996 by jmc, Wed May 28 03:37:35 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 new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
8      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
9      fix option to read coriolis(@ cell-corner) from files with CS-grid.
10    o pkg/mnc: add some attributes to standard 1D-coordinate variables
11    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
12      mass points, when using mnc for output
13      - add runtime parameter (missing_value, missing_value_int) to override
14        default (which is the value of getcon('UNDEF'))
15    o pkg/mnc: prepare mnc for the actual use of missing values with the
16      diagnostics package: small fix in mnc_cw_readwrite.template and more
17      initialisation of never used fields
18      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
19      versions
20    o pkg/thsice/thsice_ini_vars.F added default initial values so that
21      thermodynamics sea ice solver does not blow up when some initial fields
22      are missing.
23    o move from external_forcing_surf.F to ini_forcing.F
24      the p-coord. hack consisting in using pLoad to set phi0surf ;
25      update output of tutorial_global_oce_in_p (affected @ truncation level).
26    o Freshen up a bit hs94.1x64x5, notably:
27      remove rotationPeriod and tRef=5*0. (adjoint only), and add
28      exactConserv=.TRUE.
29    o pkg/generic_advdiff:
30      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
31      applies to files where Temperature & Salinity 2nd Order moments are used.
32    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
33      this uses a dynamically allocated internal state data structure
34      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
35      and requires a fortran 90 compiler
36    
37    checkpoint59q
38    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
39       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
40    o Refresh tutorial_global_oce_biogeo, notably:
41      - change bathymetry (put back seamounts in ACC, use hFacs)
42      - change EOS (POLY3 --> JMD95Z)
43      - use Bryan-Lewis vertical diffusivity
44      - use multidimensional advection
45      - remove old virtual virtual in dic pkg, now done through ptracer pkg
46      - change a couple of parameters in dic pkg
47    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
48    o pkg/obcs: change default to OBCSfixTopo = .true.,
49      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
50      - replace "debugMode" with "debugLevel .GE. debLevB"
51    o implementation of TAF directives for gchem,cfc,dic
52    o remove "exp5" (replaced by tutorial_deep_convection).
53    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
54      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
55      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
56      --> changes results in exp4, seaice_obcs
57    o tutorial_deep_convection :
58      update the set-up and increase resolution and domain size ; start
59      from pseudo initial conditions = output at t=120mn in order to see
60      something happening when running testreport.
61    o pkg/seaice: add os7mp as an advection scheme
62                  add check for advection schemes
63                  add a flag for restoring T and S underneath sea ice
64    o pkg/my82: add netcdf-support and diagnostics
65    o thsice pkg:
66      - Now hsMax limits snow height by turning it into ice following
67        flooding scheme (and now conserving energy)
68      - Slight rewriting of the formula in thsice_calc_thick.F
69      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
70      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
71    
72    checkpoint59p
73    o gchem / dic / cfc :
74      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
75      - add new parameter files: "data.dic" & "data.cfc" ;
76      - various re-arrangement in initialisation & header file ;
77      - fix tutorial_global_oce_biogeo for multi-threaded test.
78    o pkg/dic: test for "pickup_dic" file when restarting ;
79      if no pickup-file, can restart with a re-initialised pH (same as it did
80      before) providing pickupStrictlyMatch is set to False.
81    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
82      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
83    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
84      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
85    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
86     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
87       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
88    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
89       scheme to use for vorticty-term ;
90     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
91       (with default selectVortScheme, return to original discretisation)
92     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
93    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
94    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
95      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
96      also fix diagnostics VISCAHW & VISCA4W.
97    
98    checkpoint59o
99    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
100    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
101      move a few statemens out the main loop into separate loops
102    o pkg/shelfice:
103      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
104        (kg/m^2/s), does not break tests, because in verification/isomip,
105        rhoConstFresh=rhoConst (by accident)
106      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
107      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
108        new file model/src/seawater.F, so that they are available for all pkgs.
109      - convert potential temperature into in-situ temperature. This changes the
110        isomip tests => update tests
111    o add a flag writePickupAtEnd (default=true) to be able to suppress
112      writing a pickup at the last timestep
113    o tools/mpack-1.6 :
114      - disable automake (not working) and autoconf (not needed).
115      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
116        also cleaner with much less compilation warnings.
117    o pkg/profiles:
118      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
119      (for "less than 32 characters name" compiler requirement)
120    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
121      conditions that have a different sampling frequency than S/T/U/V obcs
122    o pkg/diagnostics (stats-diags):
123      - fix global Min/Max in case 1 processor get only empty tiles
124    o genmake2: replace (4 times)
125         make genmake_tc_1.o >> genmake_warnings 2>&1
126      with
127         COMM="$CC $CFLAGS -c genmake_tc_1.c"
128         echo $COMM >> genmake_warnings
129         $COMM >> genmake_warnings 2>&1
130      to make genmake2 always see the value of CC as specified in the optfile.
131    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
132      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
133      - modify verification advect_cs test to test SOM-advection on CS-grid.
134    o pkg/ctrl:
135      - Rewrite of ctrl_map_ini_ecco.F,
136        introducing a generic routine (ctrl_map_ini_gen.F).
137      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
138    
139    checkpoint59n
140    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
141      number in dedicate array "hdiag":
142      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
143        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
144      - many small changes (integer format) for large number of diagnostics
145      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
146        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
147    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
148      usingSphericalGrid, this allows to define the rotated grid coordinates
149      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
150      geographical coordinates according to the inverse of the rotation defined
151      by the Euler angles, so that Coriolis parameter and online-interpolation by
152      exf works with the geographical coordinates on XC/YC/XG/YG.
153      Naturally, this feature does not work with all packages, so some
154      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
155      profiles), because there the coordinates are assumed to be regular
156      spherical grid coordinates.
157    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
158      - introduce isopycnal diffusion coefficient control.
159    o tools/adjoint_options:
160      - additional control vector components.
161    o pkg/mnc: have mnc create marginally meaning full coordinate variables
162      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
163    o pkg/mypackage:
164      - add example of read/write pickup for state-var ;
165      - add entry points to the main code for state-vars diags & write-pickup.
166    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
167      transitions for useExfYearlyFields
168      - add new subroutine that determines the file to read from for
169        use*YearlyFields = .TRUE. and .FALSE.
170      - add a verification experiment to global_with_exf that tests
171        useExfYearlyFields with USE_EXF_INTERPOLATION defined
172    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
173      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
174      subroutines (which could be generated from a template, because they are
175      almost identical), for now they are included in obcs_prescribe_read.F for
176      simplicity
177    o pkg/exf:
178      - add a little more diagnostic to exf_interp_read (in analogy to
179        mds_read_field, can be turned off with debugLevel < debugLevA=1)
180      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
181        ugly but fast by unrolling short inner loops, inserting a unroll=8
182        directive in routine lagran, and splitting a loop and making do while the
183        outermost loop (the latter requires the intoduction of index arrays)
184    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
185    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
186      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
187    o verification/seaice_obcs: updated for restart test and latest options
188    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
189      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
190      for now this is only available for the C-grid code and also within
191      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
192    
193    checkpoint59m
194    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
195      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
196    o gad_som : fix flux output (& diagnostics) to have same units as other  
197      advection scheme fluxes (was previously multiplied by deltaT).  
198    o added verification/seaice_obcs both to test seaice open boundaries
199      and to provide an example matlab scrpt for generating them
200    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
201    o pkg/salt_plume: clean up salt_plume_frac.F to
202      remove redundancy in PlumeMethod 1 and 4
203    o pkg/kpp: added saltplume diagnostics
204    o pkg/obcs and pkg/seaice:
205      - do not set uice and vice to zero when OB*icefile are unspecified
206      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
207      - moved seaice tracer obcs after call to seaice_growth
208    o pkg/salt_plume: added various options for salt plume depth
209      criterion and for vertical distribution of the salt
210    
211    checkpoint59l
212    o pkg/ptracers: new version of ptracers pickup:
213      read meta file and write only fields which are needed to restart.
214      ( same logic as main pickup file ; also using pickupStrictlyMatch )
215    o pkg/seaice:
216      - add timescale for melting due to warm mixed layer as a means of
217        setting SEAICE_availHeatFrac more conveniently
218      - add a CPP-flag/runtime parameter check for flooding algorithm
219      - reformulated availHeat in seaice_growth.F to be independent of AREA
220    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
221      unit changes
222    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
223    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
224      SX vector computer.
225    o pkg/seaice:
226      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
227        seaice forcing fields can now be read only through pkg/exf
228      - removed some unused halos
229    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
230    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
231      or U/VICE from U/VWIND before computing U/VSTRESS
232    
233    checkpoint59k
234    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
235      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
236  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
237    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
238  o added pkg/salt_plume  o added pkg/salt_plume
239  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
240  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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