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revision 1.905 by mlosch, Wed Nov 7 11:13:21 2007 UTC revision 1.990 by dfer, Fri May 9 22:39:42 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 Freshen up a bit hs94.1x64x5, notably:
8      remove rotationPeriod and tRef=5*0. (adjoint only), and add exactConserv=.TRUE.
9    o pkg/generic_advdiff:
10      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
11      applies to files where Temperature & Salinity 2nd Order moments are used.
12    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
13      this uses a dynamically allocated internal state data structure
14      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
15      and requires a fortran 90 compiler
16    
17    checkpoint59q
18    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
19       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
20    o Refresh tutorial_global_oce_biogeo, notably:
21      - change bathymetry (put back seamounts in ACC, use hFacs)
22      - change EOS (POLY3 --> JMD95Z)
23      - use Bryan-Lewis vertical diffusivity
24      - use multidimensional advection
25      - remove old virtual virtual in dic pkg, now done through ptracer pkg
26      - change a couple of parameters in dic pkg
27    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
28    o pkg/obcs: change default to OBCSfixTopo = .true.,
29      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
30      - replace "debugMode" with "debugLevel .GE. debLevB"
31    o implementation of TAF directives for gchem,cfc,dic
32    o remove "exp5" (replaced by tutorial_deep_convection).
33    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
34      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
35      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
36      --> changes results in exp4, seaice_obcs
37    o tutorial_deep_convection :
38      update the set-up and increase resolution and domain size ; start
39      from pseudo initial conditions = output at t=120mn in order to see
40      something happening when running testreport.
41    o pkg/seaice: add os7mp as an advection scheme
42                  add check for advection schemes
43                  add a flag for restoring T and S underneath sea ice
44    o pkg/my82: add netcdf-support and diagnostics
45    o thsice pkg:
46      - Now hsMax limits snow height by turning it into ice following
47        flooding scheme (and now conserving energy)
48      - Slight rewriting of the formula in thsice_calc_thick.F
49      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
50      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
51    
52    checkpoint59p
53    o gchem / dic / cfc :
54      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
55      - add new parameter files: "data.dic" & "data.cfc" ;
56      - various re-arrangement in initialisation & header file ;
57      - fix tutorial_global_oce_biogeo for multi-threaded test.
58    o pkg/dic: test for "pickup_dic" file when restarting ;
59      if no pickup-file, can restart with a re-initialised pH (same as it did
60      before) providing pickupStrictlyMatch is set to False.
61    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
62      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
63    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
64      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
65    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
66     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
67       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
68    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
69       scheme to use for vorticty-term ;
70     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
71       (with default selectVortScheme, return to original discretisation)
72     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
73    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
74    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
75      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
76      also fix diagnostics VISCAHW & VISCA4W.
77    
78    checkpoint59o
79    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
80    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
81      move a few statemens out the main loop into separate loops
82    o pkg/shelfice:
83      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
84        (kg/m^2/s), does not break tests, because in verification/isomip,
85        rhoConstFresh=rhoConst (by accident)
86      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
87      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
88        new file model/src/seawater.F, so that they are available for all pkgs.
89      - convert potential temperature into in-situ temperature. This changes the
90        isomip tests => update tests
91    o add a flag writePickupAtEnd (default=true) to be able to suppress
92      writing a pickup at the last timestep
93    o tools/mpack-1.6 :
94      - disable automake (not working) and autoconf (not needed).
95      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
96        also cleaner with much less compilation warnings.
97    o pkg/profiles:
98      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
99      (for "less than 32 characters name" compiler requirement)
100    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
101      conditions that have a different sampling frequency than S/T/U/V obcs
102    o pkg/diagnostics (stats-diags):
103      - fix global Min/Max in case 1 processor get only empty tiles
104    o genmake2: replace (4 times)
105         make genmake_tc_1.o >> genmake_warnings 2>&1
106      with
107         COMM="$CC $CFLAGS -c genmake_tc_1.c"
108         echo $COMM >> genmake_warnings
109         $COMM >> genmake_warnings 2>&1
110      to make genmake2 always see the value of CC as specified in the optfile.
111    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
112      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
113      - modify verification advect_cs test to test SOM-advection on CS-grid.
114    o pkg/ctrl:
115      - Rewrite of ctrl_map_ini_ecco.F,
116        introducing a generic routine (ctrl_map_ini_gen.F).
117      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
118    
119    checkpoint59n
120    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
121      number in dedicate array "hdiag":
122      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
123        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
124      - many small changes (integer format) for large number of diagnostics
125      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
126        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
127    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
128      usingSphericalGrid, this allows to define the rotated grid coordinates
129      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
130      geographical coordinates according to the inverse of the rotation defined
131      by the Euler angles, so that Coriolis parameter and online-interpolation by
132      exf works with the geographical coordinates on XC/YC/XG/YG.
133      Naturally, this feature does not work with all packages, so some
134      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
135      profiles), because there the coordinates are assumed to be regular
136      spherical grid coordinates.
137    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
138      - introduce isopycnal diffusion coefficient control.
139    o tools/adjoint_options:
140      - additional control vector components.
141    o pkg/mnc: have mnc create marginally meaning full coordinate variables
142      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
143    o pkg/mypackage:
144      - add example of read/write pickup for state-var ;
145      - add entry points to the main code for state-vars diags & write-pickup.
146    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
147      transitions for useExfYearlyFields
148      - add new subroutine that determines the file to read from for
149        use*YearlyFields = .TRUE. and .FALSE.
150      - add a verification experiment to global_with_exf that tests
151        useExfYearlyFields with USE_EXF_INTERPOLATION defined
152    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
153      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
154      subroutines (which could be generated from a template, because they are
155      almost identical), for now they are included in obcs_prescribe_read.F for
156      simplicity
157    o pkg/exf:
158      - add a little more diagnostic to exf_interp_read (in analogy to
159        mds_read_field, can be turned off with debugLevel < debugLevA=1)
160      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
161        ugly but fast by unrolling short inner loops, inserting a unroll=8
162        directive in routine lagran, and splitting a loop and making do while the
163        outermost loop (the latter requires the intoduction of index arrays)
164    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
165    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
166      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
167    o verification/seaice_obcs: updated for restart test and latest options
168    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
169      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
170      for now this is only available for the C-grid code and also within
171      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
172    
173    checkpoint59m
174    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
175      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
176    o gad_som : fix flux output (& diagnostics) to have same units as other  
177      advection scheme fluxes (was previously multiplied by deltaT).  
178    o added verification/seaice_obcs both to test seaice open boundaries
179      and to provide an example matlab scrpt for generating them
180    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
181    o pkg/salt_plume: clean up salt_plume_frac.F to
182      remove redundancy in PlumeMethod 1 and 4
183    o pkg/kpp: added saltplume diagnostics
184    o pkg/obcs and pkg/seaice:
185      - do not set uice and vice to zero when OB*icefile are unspecified
186      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
187      - moved seaice tracer obcs after call to seaice_growth
188    o pkg/salt_plume: added various options for salt plume depth
189      criterion and for vertical distribution of the salt
190    
191    checkpoint59l
192    o pkg/ptracers: new version of ptracers pickup:
193      read meta file and write only fields which are needed to restart.
194      ( same logic as main pickup file ; also using pickupStrictlyMatch )
195    o pkg/seaice:
196      - add timescale for melting due to warm mixed layer as a means of
197        setting SEAICE_availHeatFrac more conveniently
198      - add a CPP-flag/runtime parameter check for flooding algorithm
199      - reformulated availHeat in seaice_growth.F to be independent of AREA
200    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
201      unit changes
202    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
203    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
204      SX vector computer.
205    o pkg/seaice:
206      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
207        seaice forcing fields can now be read only through pkg/exf
208      - removed some unused halos
209    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
210    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
211      or U/VICE from U/VWIND before computing U/VSTRESS
212    
213    checkpoint59k
214    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
215      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
216    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
217      all experiments pass when compile with un-initialised var. checking option.
218    o added pkg/salt_plume
219    o script to test restart (for now, in MITgcm_contrib/jmc_script)
220    o pkg/seaice: new read/write pickup version.
221      read meta file and write only fields which are needed to restart.
222      ( same logic as main pickup file ; also using pickupStrictlyMatch )
223    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
224    o lab_sea.hb87: modify the domain & update output.hb87.txt :
225      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
226      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
227      process. Fixed here by closing the domain at the Northern boundary.
228    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
229    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
230      a set of consecutive levels in/from a 3-D array.
231    o pkg/ptracers:
232      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
233      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
234    
235    checkpoint59j
236    o in pkgs: dic, obcs, offline, rbcs:
237      standard way to compute coeff. for time interpolation between 2 time reccords
238      which retains full precision (& make results less dependent on compiler).
239      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
240  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
241    packages instead of reading ice cover and wind speed separately    packages instead of reading ice cover and wind speed separately
242  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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