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revision 1.1826 by jmc, Sun Feb 17 04:38:29 2013 UTC revision 1.1882 by mlosch, Wed Jun 19 12:51:51 2013 UTC
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4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    
8    checkpoint64i (2013/06/18)
9    o pkg/cheapaml:
10      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
11        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
12        with pkg/cheapaml.
13    o utils/python: add subpackage for cubed sphere function, first example is
14        simple cs.pcol to plot 2D fields on a map
15    o pkg/streamice:
16      - This is a new package in MITgcm, which solves dynamic equations for ice
17         sheets and ice streams
18      - At the moment it is independent of atmosphere/ocean dynamics, or any
19        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
20        ed that this will change)
21      - There is a new verification exercise that tests it, halfpipe_streamice,
22        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
23        rectangular embayment
24      - halfpipe_streamice is forward-only for now, will have TAF test soon
25      - for questions, email dgoldber@mit.edu
26    o pkg/thsice:
27      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
28        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
29      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
30         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
31      - allow precip from pkg/cheapaml to make snow over seaice.
32    o pkg/cfc:
33      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
34      - remove atmos CFC 2-D arrays from common bloc (now local variables)
35      - change some hard-coded constant to run time parameter for reading and
36        and interpolating atmospheric CFC ; keep same default as previously.
37      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
38      - put arguments in standard order: myTime, myIter, myThid
39      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
40        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
41      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
42      - new routine to print summary of CFC params and check for consistency.
43    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
44      similar to thsice_advdiff.
45      Note that for the B-grid case the routine parameters uc/vc are overwritten.
46    o pkg/cfc:
47      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
48        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
49      - fix interpolation of atmphspheric CFC between Sorthern and Northern
50        hemisphere value.
51    o pkg/seaice:
52      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
53    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
54                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
55      - requires an additional time level that is stored in the pickup
56      - you can start with AB2 from a pickup without this time level with
57        pickupStrictlyMatch = .false.
58    
59    checkpoint64h (2013/05/26)
60    o pkg/cheapaml:
61      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
62        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
63      - consistent treatment of uWind,vWind location: assume everywhere in
64        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
65        (Note: was already the case for Tair,Qair advection);
66        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
67      - compute diabatic forcing only in the interior (excluding overlap regions)
68      - fill in array "Qsw" (for short-wave heating);
69      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
70        before any update (consistent with MITgcm state var diagnostics);
71      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
72        non periodic ; + adjusted for uWind,vWind (C-grid).
73    o pkg/seaice:
74      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
75        add explicitly pkg/exf in experiments that currently use pkg/seaice.
76      - allows to compile pkg/seaice without pkg/exf.
77    o tools/OAD_support:
78      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
79        of array "ourStepOf" in function rvNextAction (revolve.F90).
80    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
81      - change pkg name (to be used with other atmospheric physics pkg)
82        but by-pass CVS when making the new pkg so that we keep the CVS history.
83    o pkg/offline:
84      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
85        (previously called from pkg/dic_surfforcing_init.F)
86    o model/src:
87      - re-order sequence of calls within packages_init_variables.F, using
88        standard order, except for:
89         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
90         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
91    o new pkg: atm_phys
92      - add entry point and source code (previously in contrib
93          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
94        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
95      - re-order sequence of calls within packages_readparms.F,
96         packages_init_fixed.F and packages_write_pickup.F
97        (but skip packages_init_variables.F because of TAF issues).
98      - update contrib/*/atm_gray/ experiment.
99    o pkg/seaice (ITD code):
100      - simplify and fix the writing of pickup-files for ITD case
101    o pkg/seaice (ITD code):
102      - introduce floe size dependent lateral melt for ITD case;
103      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
104      - update seaice_itd experiment main output.
105    o pkg/thsice:
106      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
107        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
108        changed accordingly pkg/atm2d.
109    
110    checkpoint64g (2013/05/01)
111    o pkg/exf ALLOW_RUNOFTEMP
112      - if defined,  river and glacier runoff temperature can be read-in from
113        runoftempfile; runoftempfile needs to have same format as runofffile
114    o pkg/thsice (& pkg/bulk_force):
115      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
116        for energy content of Precip + RunOff & Evap (like with pkg/exf).
117      - change computation domain to always be the interior (without overlap).
118      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
119    o verification/tutorial_global_oce_biogeo:
120      - add preliminary OpenAD setup (still has problems)
121    o pkg/seaice:
122      - turn some parameters for choosing the convergence criterion of
123        the inexact Newton method (JFNK) into runtime parameters for convenience
124      - clean up seaice_calc_viscosities.F: remove/retire two options for
125        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
126        the results of lab_sea/input because a division has been replaced by
127        a multiplication with the reciprocal (sumNorm)
128      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
129        convergence of solver (changes results, of course), and to test some
130        new features
131    o model/src:
132      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
133      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
134      - move forcing adjustment (balancing surface forcing) in specific S/R
135        where might also be applied exchanges (if needed) to forcing arrays.
136    o pkg/shelfice:
137      - allow to specify the Ice-Shelf mass per unit area (instead of
138        shelficeLoadAnomaly) and do the conversion from one to the other
139      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
140        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
141        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
142        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
143      - update isomip experiment forward output (get machine truncation error
144        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
145    o verification/offline_exf_seaice:
146      revise data.seaice in input.thermo and input_ad and update results accordingly
147        HO = 0.2, SEAICE_areaLossFormula = 2,
148        SEAICE_growMeltByConv = .TRUE.,
149        SEAICE_doOpenWaterMelt = .TRUE.,
150      Improve consistency with input.thsice and fix the spurious 500m ice corners
151    o verification/global_ocean.cs32x15:
152      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
153        in icedyn (thsice+seaice-dyn) test and update output.
154    o verification/offline_exf_seaice:
155      - adjust list of tested variables (with testreport) and update
156        standard test output with better slection of monitored fields.
157    o pkg/cd_code:
158      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
159        experiment lab_sea.hb87
160    o tools/genmake2:
161      - change default makedepend from the system default to tools/xmakedepend:
162        When no makedepend is specified, select tools/xmakedepend it the test pass,
163        otherwise select the system default (if exist and pass the test) or
164        try to build cyrus-makedepend ; stop if none of the 3 works.
165    o pkg/exf & pkg/thsice:
166      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
167        for energy content of Precip + RunOff & Evap. Assumes:
168       1) Rain has same temp as Air.
169       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
170       3) Run-Off comes at the temp of surface water (with same Cp)
171       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
172        put directly into Latent Heat flux & should use water-vapor heat capacity.
173       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
174        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
175    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
176        (compile when SEAICE_ALLOW_JFNK is defined)
177    o pkg/thsice:
178      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
179        implementation): move THSICE_AVE call after the advection (called directly
180        from thsice_do_advect.F).
181    o verification/global_ocean.90x40x15 and OpenAD:
182      New experiment for OpenAD is identical to the one in input_ad except that
183        multiDimAdvection=.FALSE.,
184      There is still an issue with this.
185    o pkg/thsice:
186      - account for ice velocity (ocean relative velocity) in turbulent heat flux
187        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
188        and offline_exf_seaice (main test).
189    
190    checkpoint64f (2013/03/31)
191    o verification/OpenAD:
192      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
193    o verification/isomip, pkg/shelfice and OpenAD:
194      - add OpenAD setup to this exp and make shelfice package work with OpenAD
195    o verification/tutorial_global_oce_biogeo:
196      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
197    o verification/offline_exf_seaice:
198      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
199    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
200      - add OpenAD setup to this exp and make ptracers package work with OpenAD
201    o pkg/seaice/seaice_evp.F:
202       mask the asymmetric contribution of the ice-ocean stress (when
203       the turningAngle is non-zero) over open water to avoid stripes
204       in the EVP-solutions after many EVP-substeps. This does not change
205       the verification experiment (because turningAngle=0 in that experiment),
206       but will affect other EVP solutions with turningAngle.ne.0
207    o verification, AD & TLM output:
208      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
209        additions and multiplications which affect results at machine truncation
210        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
211        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
212        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
213        digits of matching.
214    o pkg/seaice:
215       modify lsr-algorithm so that it vectorizes AND converges by using a
216       "zebra" method: split vector loop into two with step size 2; this
217       solves a general convergence problem for the JFNK solver on a vector
218       computer. It has the potential to even improve convergence for
219       non-vector machines, but it does change the results so it is turned
220       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
221       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
222    
223    checkpoint64e (2013/03/05)
224    o pkg/ecco and several verification experiments:
225       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
226       from ecco package, and revert to unified routine in model/src/
227       Adjust verification experiments accordingly, especially gloal_oce_llc90
228       Should conclude long-standing work by Gael to reconsile the_main_loop with
229       ECCO and will enable OpenAD's revolve loop in ECCO setup.
230    o pkg/generic_advdiff:
231      - implement compressible flow method for multi-dim advection (similar to
232        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
233        TAF generates many recomputations) to use it; no yet coded with implicit
234        vertical advection.
235      - change experiment advect_cs (new output) and advect_xy (same output)
236        to test compressible flow multi-dim advection.
237    o pkg/generic_advdiff:
238      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
239        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
240    o pkg/seaice:
241      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
242        bug affects two verification experiments (lab_sea and lab_sea.hb87),
243        recover old (wrong) results by setting noSlipFac = 2. in
244        seaice_calc_strainrates.F;
245      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
246      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
247        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
248      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
249    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
250      - new subroutines seaice_lsr_tridiagu/v
251      - introduce loop bounds i/jmin/max to be able to use a restricted
252        additive Schwarz method, but not used for now.
253      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
254      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
255    o OpenAD support
256       Reorganize S/R call for overall time-stepping loop to facilitate
257       OpenAD revolve loop replacement
258       (new S/R main_do_loop.F)
259    o model/src:
260      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
261      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
262        ADAMS_BASHFORTH2.
263    o pkg/cheapaml:
264      - add new parameter (default=F, same as before) to disable full domain
265        (including land) periodicity in X & Y dir.
266      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
267        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
268        into single S/R CHEAPAML_TIMESTEP.
269    
270    checkpoint64d (2013/02/17)
271  o pkg/monitor (angular momentum):  o pkg/monitor (angular momentum):
272    - do not add Eta contribution to the total AM if using rigid-lid;    - do not add Eta contribution to the total AM if using rigid-lid;
273    - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).    - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).

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