/[MITgcm]/MITgcm/pkg/mnc/README.txt
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revision 1.12 by edhill, Fri Mar 19 03:28:36 2004 UTC revision 1.15 by jmc, Mon Oct 8 17:00:17 2007 UTC
# Line 1  Line 1 
1    # $Header$
2    # $Name$
3    
4  API Discussions:  API Discussions:
5  ================  ================
# Line 80  Heres a further "convenience wrapper" wr Line 82  Heres a further "convenience wrapper" wr
82      'U_xy_i_t_Hn',             Cen      'U_xy_i_t_Hn',             Cen
83      'Cor_x_-_-_Hy'             Cor      'Cor_x_-_-_Hy'             Cor
84    
85    MNC_CW_WRITE( myIter, filebn,bi,bj, Gtype, RX, vname, var, myThid )    MNC_CW_SET_UDIM( fbname, udim, myThid )
   MNC_CW_READ(  myIter, filebn,bi,bj, Gtype, RX, vname, var, myThid )  
86    
87    MNC_CW_RX_W_YY( fbname,bi,bj, vtype, indu, var, myThid )    MNC_CW_RX_W( 'R|D|I', fbname,bi,bj, vtype, indu, var, myThid )
88    MNC_CW_RX_R_YY( fbname,bi,bj, vtype, indu, var, myThid )    MNC_CW_RX_R( 'R|D|I', fbname,bi,bj, vtype, indu, var, myThid )
89              |
90              +--  RX = 'RL', 'RS', or 'I'
91    
92    MNC_COMP_VTYPE_VAR( ind_vt, ind_fv_ids, ires, myThid )    MNC_COMP_VTYPE_VAR( ind_vt, ind_fv_ids, ires, myThid )
93    
94    
95    
96  To-Do:  To-Do:
97  ======  ======
98    
# Line 97  To-Do: Line 101  To-Do:
101    
102   2) UNITS -- as with the names we need to follow conventions   2) UNITS -- as with the names we need to follow conventions
103    
104   3) AM described her "diags" (or "myDiags" or "mDiags") interface   3) CNH pointed out that grid interpolation needs to be handled
     which should use MNC for output.  The data storage idea is similar  
     to the MNC tables-of-indicies approach but also includes one huge  
     double-precision "accumulator" to hold all the temporary values  
     (eg. partial sums for averages, current max/mins):  
   
       vname ( ni )  
       vlen  ( ni )  
       vind  ( ni ) ------+  
                          |  
   
       vij_diag ( i, j, [...] )  w/ lat/lon indicies  
       vgl_diag ( [...] )        wo/ lat/lon indicies (global)  
   
  4) CNH pointed out that grid interpolation needs to be handled  
105      "on-the-fly" since pre-processing would result in overly large      "on-the-fly" since pre-processing would result in overly large
106      input files.  We need an interpolation API...      input files.  We need an interpolation API...
107    
  5) From the group meeting on 2004/01/21, we need to define  
     "sub-grids" corresponding to:  
   
          var_name       HGRID       VGRID       TIME  
          ===========================================  
          u              U_xy        r_c         t  
          eta            T_xy        -           t  
          rac            T_xy        -           -  
   
     And write a convenience wrapper so that users can write variables  
     using just two function calls.  JMC and I worked out the  
     following:  
   
108    
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