!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer, 
!                     version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms 
!of the Environment Canada - Atmospheric Science and Technology License/Disclaimer 
!version 3 or (at your option) any later version that should be found at: 
!http://collaboration.cmc.ec.gc.ca/science/rpn.comm/license.html 
!
!This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
!without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
!See the above mentioned License/Disclaimer for more details.
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!if not, you can write to: EC-RPN COMM Group, 2121 TransCanada, suite 500, Dorval (Quebec), 
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!-------------------------------------- LICENCE END --------------------------------------
#if defined (DOC)
*
***comdeck nest.cdk
*
*______________________________________________________________________
*                                                                      |
*  VARIABLES ASSOCIATED WITH NESTING for current timestep              |
*  For Nest_uf,Nest_vf - used for future timesteps                     |
*______________________________________________________________________|
*                    |                                                 |
* NAME               | DESCRIPTION                                     |
*--------------------|-------------------------------------------------|
* Nest_u             | x component of velocity                         |
* Nest_v             | y component of velocity                         |
* Nest_w             | z component of velocity                         |
* Nest_t             | T (temperature)                                 |
* Nest_td            | total divergence (dpi* dot / dpi* + D )         |
* Nest_fi            | phi (geopotential)                              |
* Nest_q             | q = ln p                                        |
*--------------------|-------------------------------------------------|
* Nest_tp            | T'       \                                      |
* Nest_fip           | phi'      -> perturbations                      |
* Nest_pip           | pi'      /                                      |
*--------------------|-------------------------------------------------|
* Nest_mu            | nonhydro index mu=dp/dpi-1 [= 0 if hydro]       |
* Nest_psd           | pi* dot (vert. vel. in pi* coord.)              |
* Nest_s             | ln (dpi/dpi*)                                   |
* Nest_tr            | tracer 3d variables                             |
*----------------------------------------------------------------------|
*
*
#endif
      MARK_COMMON_BEG (nest)
      DCL_VMMVAR( nest, nest_u   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_v   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_w   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_t   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_td  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_fi  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_q   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_tp  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_fip , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_pip , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_mu  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_psd , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_s   , real, (LDIST_SHAPE     ) )
      DCL_VMMVAR( nest, nest_tr  , real, (LDIST_SHAPE,l_nk,*) )

      DCL_VMMVAR( nest, nest_uf   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_vf   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_wf   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_tf   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_tdf  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_fif  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_qf   , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_tpf  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_fipf , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_pipf , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_muf  , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_psdf , real, (LDIST_SHAPE,l_nk) )
      DCL_VMMVAR( nest, nest_sf   , real, (LDIST_SHAPE     ) )
      DCL_VMMVAR( nest, nest_trf  , real, (LDIST_SHAPE,l_nk,*) )

      MARK_COMMON_END (nest)
      character*8 nest_n_first(1)
      equivalence (nest_n_first,VMM_NAM(nest_u))