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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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============================== |
============================== |
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o pkg/exf (vertor interpolation): |
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- rotate vector component toward local grid-axis orientation using grid-angles |
| 9 |
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(stored in GRID.h) instead of locally computed rotation angle; keep old code |
| 10 |
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available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default). |
| 11 |
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o pkg/seaice: |
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- allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION |
| 13 |
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undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined. |
| 14 |
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o pkg/PKG_OPTIONS.h files: |
| 15 |
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- move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h", |
| 16 |
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outside of the #ifdef ALLOW_THISPKG / #endif block. |
| 17 |
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- update verification/*/code/PKG_OPTIONS.h files. |
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o add a verification experiment (offline_exf_seaice/input.seaice) that test |
| 19 |
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the B-grid LSOR solver |
| 20 |
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o pkg/seaice: sort out emissivity and long wave radiation step 2: |
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- add emissivity for snow and ice as new run-time parameters |
| 22 |
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(unfortunately) that default to the corresponding exf values; this |
| 23 |
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changes results in most verification experiments so that for backward |
| 24 |
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compatibility these parameter have to be set explicitly to inconsistent |
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values (ugly); |
| 26 |
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- the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired |
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emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp |
| 28 |
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until we agree how to handle this bug properly |
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o pkg/exf (interpolation): |
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- add a set of run-time param ({inputfield}_interpMethod), one for |
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each interpolated input field, to select the interpolation method |
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with a value of zero switching off the interpolation; |
| 33 |
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- print interpolation parameters to standard output; |
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- refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined |
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(to use instead runoff_interpMethod=0 in data.exf). |
| 36 |
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- simplify default setting of interpolation parameters (for all fields, |
| 37 |
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set position to match model grid cell-center position, leading to trivial |
| 38 |
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interpolation in case of regular Lat-Lon grid) and fix for the case of |
| 39 |
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non-uniform delY. |
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o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for |
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within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1. |
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this factor is absolutely required, because the lw exitance (= out-going |
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long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown, |
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where the reflectivity rho = 1-emissivity for conservation reasons. Once |
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this is established, we can remove the CPP-Flag (if we want to). |
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o pkg/seaice: |
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- qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and |
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ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined |
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- sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity |
| 50 |
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what the name implies (and not emissivity*BoltzmannConstant), this means |
| 51 |
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the old default value of 5.5e-8 now means |
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5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in |
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S/R exf_readparms |
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- FV-discretization of the B-grid LSOR solver, turn on with |
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SEAICE_LSRBNEW. This new solver also involves a slight re-organization |
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of the calling routine dynsolver, so that B and C-grid code look a |
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little more alike. |
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- fix index bugs in ostres.F (B-grid code) |
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o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better |
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o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the |
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default for SEAICE_emissivity, if useEXF; requires setting a wrong |
| 62 |
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parameter value in global_ocean.cs32x15/input.seaice/data.seaice for |
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backward compatiblity |
| 64 |
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o model/src: use sigmaR in calc_ivdc |
| 65 |
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checkpoint63g (2011/12/16) |
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o pkg/seaice/seaice_growth.F: |
| 68 |
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fix heat conservation of the coupled ocean-seaice system. |
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when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of |
| 70 |
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solid vs liquid water treatment is resolved via QNET. |
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o pkg/seaice/seaice_growth.F: |
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add missing term for sublimation in saltFlux, which was breaking conservation. |
| 73 |
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o pkg/seaice/seaice_model.F: |
| 74 |
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Remove this patholigical case treatment in evolution branch, |
| 75 |
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where it is un-necessary and breaks conservation. |
| 76 |
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Update global_ocean.cs32x15/results accordingly for |
| 77 |
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output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt |
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o model/src: |
| 79 |
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useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in |
| 80 |
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external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE. |
| 81 |
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o pkg/obcs: |
| 82 |
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modify Stevens boundary conditions so that S/R obcs_calc_stevens computes |
| 83 |
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tendency for temperature and salinity that is then applied to update |
| 84 |
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theta and salt in S/R obcs_apply_ts; this requires proper masking of all |
| 85 |
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horizontal advection and diffusion contributions on the boundary (in |
| 86 |
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S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and |
| 87 |
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removing the mask in S/R timestep_tracer. The advantage of this approach is |
| 88 |
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that the updated tracer values include contributions from the surface |
| 89 |
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forcing and vertical diffusion. |
| 90 |
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This modification changes exp4.stevens because of vertical diffusion. |
| 91 |
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o model/src: |
| 92 |
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change non-curvilinear grid setting to also work with exch2 + blank tiles: |
| 93 |
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- move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst |
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face dimensions. |
| 95 |
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- new S/R INI_LOCAL_GRID to define model tile-local grid (using same units |
| 96 |
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as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID |
| 97 |
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and INI_SPHERICAL_POLAR_GRID. |
| 98 |
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change test-experiment global_ocean.90x40x15: |
| 99 |
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- split the domain in many more tiles (9x4 tiles of 10x10 each); |
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- switch to exch2 and remove 1 blank-tile (but only for MPI test). |
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- update results of both test (std & dwnslp). |
| 102 |
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o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in |
| 103 |
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tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation |
| 104 |
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o model/src: |
| 105 |
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- take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS |
| 106 |
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and fix initialisation when using sigma-coords. |
| 107 |
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o model/src: |
| 108 |
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- improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc. |
| 109 |
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to their current value at the beginning of forward_step.F": add a new run-time |
| 110 |
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switch "doResetHFactors" (default=false) and use it to do (or not) the resetting. |
| 111 |
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- set doResetHFactors=T in the following test exp: |
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global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS), |
| 113 |
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global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS) |
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and tutorial_global_oce_in_p (nonLinFS in p) |
| 115 |
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o pkg/ecco |
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- added IES cost term |
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o verification/advect_xz |
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- scale down the depth by 1/100 (from 200 km to just 2.km) |
| 119 |
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- add secondary test using divergent flow, r-star and implicit vertical advection. |
| 120 |
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- add note (check_conserve_TS.txt) and matlab script to check global |
| 121 |
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conservation of T & S with NonLin-FreeSurf and Adams-Bashforth. |
| 122 |
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o pkg/rbcs: |
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- add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F). |
| 124 |
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o pkg/obcs (Stevens BCs): |
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- fix various problems in the phase speed computations of the Stevens |
| 126 |
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boundary conditions: |
| 127 |
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- sign error for western and southern boundaries, |
| 128 |
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- time tendencies were underestimated by factor of dTracerLev and some just |
| 129 |
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zero (for multidim advection schemes) -> now estimate time tendencies |
| 130 |
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from difference between previous (n) time level and the one before (n-1); |
| 131 |
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this requires storing a field per tracer per boundary, also in the pickup |
| 132 |
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files. |
| 133 |
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- replace deltaTmom in cflMer/Zon computation with dTracerLev |
| 134 |
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- set default phase velocity to cflMer/Zon |
| 135 |
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- update verification experiment exp4.stevens |
| 136 |
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o pkg/generic_advdiff (implicit_r): |
| 137 |
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- fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf |
| 138 |
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(remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F); |
| 139 |
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- fix implicit vertical diffusion or advection with NonLin FreeSurf |
| 140 |
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(was using current recip_hFacC instead of future recip_hFacC): set future |
| 141 |
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recip_hFac in thermodynamics.F and pass & use it in all vertical implicit |
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solver S/R ; |
| 143 |
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- fill diagnostics of vertical advective fluxes (computed from tendency) |
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when using implicit vert. advection; |
| 145 |
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- update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion: |
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global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD), |
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tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD) |
| 148 |
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and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5. |
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o pkg/diagnostics: |
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- add diags for T & S tendency which goes through Adams-Bashforth. |
| 151 |
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|
| 152 |
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checkpoint63f (2011/11/30) |
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o pkg/obcs/obcs_calc_stevens.F: |
| 154 |
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- join some loops to reduce number of if-statements |
| 155 |
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- fix a bug in code for northern and southern boundaries. |
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o pkg/seaice/seaice_init_varia.F |
| 157 |
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- undo resetting UVM=0 that has slipped in unnoticed in r1.49 and |
| 158 |
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caused zero ice-velocities for the B-grid code |
| 159 |
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o pkg/seaice/seaice_init_fixed.F |
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- fix a bug in the initialisation of the second metric terms |
| 161 |
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k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0. |
| 162 |
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- this affects all seaice configurations with useCurviLinearGrid = .true. |
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and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms |
| 164 |
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= .true. (default) |
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- the only verification experiment affected is global_ocean.cs32x15: |
| 166 |
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icedyn, seaice, and seaice_dynmix (AD) |
| 167 |
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o pkg/thsice/thsice_diagnostics_state.F |
| 168 |
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- only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does |
| 169 |
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not contain garbage that can lead to surprises in diagstats_calc.F |
| 170 |
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o model/src: |
| 171 |
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- move bi,bj loops inside INTEGR_CONTINUITY ; |
| 172 |
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- call INTEGR_CONTINUITY directly from forward_step.F |
| 173 |
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(previously called from momentum_correction_step.F) |
| 174 |
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- call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F, |
| 175 |
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forward_step.F and pkg/ecco/the_main_loop.F |
| 176 |
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o model/src/do_oceanic_phys.F: |
| 177 |
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- reset addMass to zero only if useICEFRONT ; |
| 178 |
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- separated k-loop for rhoInSitu calculation ; |
| 179 |
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- add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P) |
| 180 |
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and at constant T,S (= WdRHOdP); |
| 181 |
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NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport |
| 182 |
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of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical |
| 183 |
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transport of locally-referenced potential density); |
| 184 |
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to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP) |
| 185 |
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o gluemnc: |
| 186 |
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- replace ncrcat with ncks when adding variables to *.glob.nc |
| 187 |
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- change the way variables without record dimensions are handled so that |
| 188 |
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files that have variables with and without record variables can be glued: |
| 189 |
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add a record dimension with a new unique name to be able to differentiate |
| 190 |
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between variable with and without a-prior record dimensions. Remove |
| 191 |
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this record dimension before adding the variable to the *.glob.nc file. |
| 192 |
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This procedure automatically works also for grid.*.nc files that do not |
| 193 |
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have any record dimension. |
| 194 |
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o verification/cpl_aim+ocn: |
| 195 |
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- generate new reference output on baudelaire (gfortran, mpich2) (previously |
| 196 |
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from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script. |
| 197 |
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o pkg/obcs/obcs_calc_stevens.F: |
| 198 |
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- add code for northern and southern boundaries. |
| 199 |
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- reorder some loops to save some operations and so that drFBar can be scalar |
| 200 |
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o model/src: |
| 201 |
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- re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine |
| 202 |
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truncation) and add diagnostics for Adams-Bashforth tendency increment. |
| 203 |
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- update test-exp. AD output: |
| 204 |
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1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl; |
| 205 |
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and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20, |
| 206 |
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front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5), |
| 207 |
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global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4), |
| 208 |
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matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre, |
| 209 |
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tutorial_global_oce_in_p, tutorial_global_oce_latlon and |
| 210 |
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tutorial_plume_on_slope. |
| 211 |
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o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX |
| 212 |
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that vectorises. This code uses 3 extra 2D fields, F90 array assignments |
| 213 |
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and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX |
| 214 |
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does not even come with an F77 compiler anymore, this should not be |
| 215 |
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a limitation |
| 216 |
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|
| 217 |
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checkpoint63e (2011/11/06) |
| 218 |
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o pkg/seaice adjoint of LSR: |
| 219 |
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- substantially rework STORE dirs. |
| 220 |
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- add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED |
| 221 |
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this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields |
| 222 |
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and only perform SOLV_MAX_FIXED adjoint iters. |
| 223 |
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If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration |
| 224 |
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always goes to same record, meaning that the last forward field will be |
| 225 |
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the one used in the adjoint - an approximation. |
| 226 |
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- now produces non-zero LSR-related gradients, and acceptable gradients for |
| 227 |
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An's zonal (x-z) test case (to be checked in) |
| 228 |
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- lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR |
| 229 |
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(but these are screwed up by the thermodynamics in the first place); |
| 230 |
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reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution; |
| 231 |
|
output_adm.txt also reflects changes to seaice_lsr |
| 232 |
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- global_ocean.cs32x15: |
| 233 |
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* the "default" input_ad.seaice has been re-defined to always exclude dynamics |
| 234 |
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(output_adm.seaice.txt was updated) |
| 235 |
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* new input_ad.seaice_dynmix tests a forward LSR / backward free-drift |
| 236 |
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(output_adm.seaice_dynmix.txt) |
| 237 |
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o test-exp. exp4+stevens: |
| 238 |
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- switch off pTracers and nonHydrostatic (restart problems with NH); update output |
| 239 |
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o pkg/seaice (lsr solver): |
| 240 |
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- put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only); |
| 241 |
|
update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15 |
| 242 |
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- fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD) |
| 243 |
|
- new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution |
| 244 |
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into initial guess for linearised solver; use weight ~ (1/err)^2,4. |
| 245 |
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- compute (with new S/R) and print initial (+ free-driff sol. if available) |
| 246 |
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and final residual of linearised system. |
| 247 |
|
o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity |
| 248 |
|
(requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F) |
| 249 |
o pkg/obcs: Stevens BCs (still only for east and west) |
o pkg/obcs: Stevens BCs (still only for east and west) |
| 250 |
- fix Stevens BCs by using intermediate velocities of previous |
- fix Stevens BCs by using intermediate velocities of previous |
| 251 |
time step as "baroclinic" contribution rather velocity of one grid cell |
time step as "baroclinic" contribution rather velocity of one grid cell |
| 252 |
inside the boundaries; more consistent but makes the entire treatment |
inside the boundaries; more consistent but makes the entire treatment |
| 253 |
more complicated, requires new pickup files and two new S/Rs: |
more complicated, requires new pickup files and two new S/Rs: |
| 254 |
obcs_copy_uv_n and obcs_save_uv_n |
obcs_copy_uv_n and obcs_save_uv_n |
| 255 |
keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY |
keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY |
| 256 |
(undefined by default) |
(undefined by default) |
| 257 |
- silently move computation of some grid factors into separate loops to |
- silently move computation of some grid factors into separate loops to |
| 258 |
save some recomputations |
save some recomputations |
| 259 |
- add a hack for non-linear free surface |
- add a hack for non-linear free surface |
| 260 |
- add a verification experiment to exp4 that tests this code |
- add a verification experiment to exp4 that tests this code |
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