Changes between Version 29 and Version 30 of ticket/1593_CNRS9_NOC3_LDF


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Timestamp:
2015-10-06T13:47:36+02:00 (5 years ago)
Author:
gm
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  • ticket/1593_CNRS9_NOC3_LDF

    v29 v30  
    2323Three steps: [[BR]] 
    2424 
    25   '''                                                           I. Phasing of horizontal scale factors                         '''                                 ===>>> OK see '''                                              revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5737]                                 '''                                + minor correction'''                                 revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5737]                            (SETTE OK)''' 
     25  '''                                                            I. Phasing of horizontal scale factors                         '''                                  ===>>> OK see '''                                               revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5737]                                  '''                                 + minor correction'''                                  revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5737]                             (SETTE OK)''' 
    2626 
    2727'''   (I.1)''' standardisation of the name of quantities derived from horizontal scale factors (many modules of NEMO)[[BR]]The chosen names of quantities derived from horizontal scale factors are:[[BR]]- inverse of scale factors : r1_e1t, r1_e2t, r1_e1u, r1_e2u, r1_e1v, r1_e2v, r1_e1f, r1_e2f ;[[BR]]- surfaces and their inverse:    e1e2t, e1e2u , e1e2v, e1e2f  and, r1_e1e2t , r1_e1e2u , r1_e1e2v, r1_e1e2f ;[[BR]]- ratio (used in traldf...) : e2_e1u , e1_e2v(I.1) generalize of the use of surface scale factors ;[[BR]]These quantities are defined in memory in dom_oce.F90, and set to their proper value in domhgr.F90 
     
    2929'''   (I.2)''' add a optional read of surface scale factors at velocity points in coordinate file (domhgr.F90)[[BR]]   The input coordinate file have to include e1e2u and e1e2v in case of reduction of the scale factors in some straits.[[BR]]        When e1u or e2v are reduced in some straits, the surface at u- and v-points remains unchanged.[[BR]]   This allows to suppress the dom_vvl_orca_fix routine from dlmvvl.F90 module.[[BR]]''Note that this change modifies the model results'', as it contains a better handling of reduced strait width (i.e. reduced surface between 2 adjacent U or V points, but unchanged U and V points volume).[[BR]]   The implementation performed here is a first step to the full simplification of domhgr.F90. We kept here the hard coded reduction of scale factor in some straits for some given ORCA configuration. [[BR]]   A last step (see IV) will be to suppress the hard coded reduction of some scale factor as it will be always given in the coordinates.nc file together with the e1e2u & e1e2v surfaces.  ===>>> OK see '''revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5755]''' 
    3030 
    31   '''       [[BR]]       [[BR]]       II. Phasing of the advective/diffusive trends on tracers''' 
     31  '''        [[BR]]        [[BR]]        II. Phasing of the advective/diffusive trends on tracers''' 
    3232 
    3333'''II.1 —''' '''LDF on tracers''' (both TRA & TRC) - Diffusive trends :    ''' '''===>>> OK see '''revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5758] &  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5759] and  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5760] with SETTE OK''' 
     
    123123 * Atmospheric pressure forcing: change to a systematic call of sbc_apr in step.F90 (with or without BDY) and remove its call from sbcmod[[BR]]- remove key_vectopt_loop from all the code except in domzgr_substitute.h90 (it is an obsolescent feature only adapted to vector computers)[[BR]]- remove all "!CDIR " lines = NEC vector compiler instructions 
    124124 
    125   '''        [[BR]]        [[BR]]        III. Phasing of viscous trends''' 
    126  
    127 '''III.1 —''' '''LDF on dynamics'''  - viscous trends :  ===>>> OK see '''revision  ....     and  .....   with SETTE OK''' 
     125  '''         [[BR]]         [[BR]]         III. Phasing of momentum trends    '''===>>> OK see '''revision  [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5777] & [https://forge.ipsl.jussieu.fr/nemo/log/branches/2015/dev_r5721_CNRS9_NOC3_LDF?rev=5737 5778] and ..... with SETTE O''' 
     126 
     127'''III.1 —''' '''LDF on dynamics'''  - viscous trends 
    128128 
    129129''operator'': [[BR]]- laplacian operator: re-entrant laplacian for iso-level operators (routine dyn_ldf_lap found in dynldf_lap_blp);[[BR]]- bilaplacian operator: dynldf_blp.F90 module: use of the re-entrant iso-level laplacian (routine dyn_ldf_blp found in dynldf_lap_blp.F90)[[BR]]- suppression of dynnept.F90  to finalize the suppression of Neptune effect param. ;[[BR]]- suppression of dynldf_lap.F90 and dynldf_bilap.F90 replaced by dynldf_lap_blp.F90 (which contains dyn_ldf_lap & dyn_ldf_blp routines) ; dynldf_bilapg.F90 (remove old and approximative rotated bi-laplacian on momentum)[[BR]]- rotb and rotn arrays suppressed (even from the restart file) NB: the viscous operator now uses the full before velocity field (i.e. including the asselin filter)[[BR]]- hdivb array is suppressed. hdivn and hdivb are removed from restart[[BR]]- associate with rotn and rotb suppression comes the suppression of no-slip accurate option (key_noslip_accurate is removed)[[BR]]- divcur.F90 becomes divhor.F90 and only computes the horizontal divergence 
     
    191191[[BR]]'''IV. Solve the pending issues''' 
    192192 
    193   '''                                                          (IV.1) '''                                         specification of eddy viscosity/diffusivity coefficients in case of grid-size dependency.[[BR]]                                         Issue:  define the grid-size dependency in such a way that does not require the Equator being inside the domain.[[BR]]                                         Solution: add a scalar in the coordinate file which is equal to the grid-size at the equator even if Equator is not in the domain[[BR]]                                         and use this scalar to compute the grid-size dependency of the coefficients.  [[BR]]         '''         (IV.2) '''                                         specification of lateral friction at the coast.[[BR]]                                         Issue:  the different values of fmask at the coast have been removed so that this lateral boundary condition doesn't affect the advective term ('''                                         double check that'''                                          !). fmask is still used for laplacian and bilaplacian viscosities. Nevertheless, the magnitude of lateral friction depends on the magnitude of ahm (bhm, reap.). It seems better to define this magnitude [[BR]]                                         Solution: add a scalar in the coordinate file which is equal to the grid-size at the equator even if Equator is not in the domain[[BR]]                                         and use this scalar to compute the grid-size dependency of the coefficients. [[BR]]         '''         (IV.3)'''             Add a proper coding of Smagorinsky eddy viscosity and diffusivity[[BR]]  (IV.4) It should be possible to remove hdivn ...  think about that 
     193  '''                                                           (IV.1) '''                                          specification of eddy viscosity/diffusivity coefficients in case of grid-size dependency.[[BR]]                                          Issue:  define the grid-size dependency in such a way that does not require the Equator being inside the domain.[[BR]]                                          Solution: add a scalar in the coordinate file which is equal to the grid-size at the equator even if Equator is not in the domain[[BR]]                                          and use this scalar to compute the grid-size dependency of the coefficients.  [[BR]]          '''          (IV.2) '''                                          specification of lateral friction at the coast.[[BR]]                                          Issue:  the different values of fmask at the coast have been removed so that this lateral boundary condition doesn't affect the advective term ('''                                          double check that'''                                           !). fmask is still used for laplacian and bilaplacian viscosities. Nevertheless, the magnitude of lateral friction depends on the magnitude of ahm (bhm, reap.). It seems better to define this magnitude [[BR]]                                          Solution: add a scalar in the coordinate file which is equal to the grid-size at the equator even if Equator is not in the domain[[BR]]                                          and use this scalar to compute the grid-size dependency of the coefficients. [[BR]]          '''          (IV.3)'''              Add a proper coding of Smagorinsky eddy viscosity and diffusivity[[BR]]   (IV.4) It should be possible to remove hdivn ...  think about that 
    194194 
    195195... 
     
    203203 * test with SETTE (especially restartability and reproducibility ) 
    204204 
    205   [[BR]]          '''           V. Finalize the simplification''' 
    206  
    207   '''                                         (V.1) add'''             in NEMOGCM/TOOLS directory a program that read a coordinates.nc file apply a reduction of scale factors in some straits, and create the associated extended coordinates file (coordinates_e1e2u_v.nc).[[BR]]         '''         (V.2) create'''          the extended coordinates files form ORCA 2°, 1°, and 0.5°. ===>>> Done for ORCA 2° and 1°,  '''                         1/2° and 1/4° missing'''                         ...[[BR]]         '''         (V.3) create'''          in NEMOGCM/TOOLS directory a program that create the ORCA2 and ORCA1 eddy viscosity'''          ????''' 
     205  [[BR]]           '''            V. Finalize the simplification''' 
     206 
     207  '''                                          (V.1) add'''              in NEMOGCM/TOOLS directory a program that read a coordinates.nc file apply a reduction of scale factors in some straits, and create the associated extended coordinates file (coordinates_e1e2u_v.nc).[[BR]]          '''          (V.2) create'''           the extended coordinates files form ORCA 2°, 1°, and 0.5°. ===>>> Done for ORCA 2° and 1°,  '''                          1/2° and 1/4° missing'''                          ...[[BR]]          '''          (V.3) create'''           in NEMOGCM/TOOLS directory a program that create the ORCA2 and ORCA1 eddy viscosity'''           ????''' 
    208208 
    209209...