!-------------------------------------- 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.
!You should have received a copy of the License/Disclaimer along with this software; 
!if not, you can write to: EC-RPN COMM Group, 2121 TransCanada, suite 500, Dorval (Quebec), 
!CANADA, H9P 1J3; or send e-mail to service.rpn@ec.gc.ca
!-------------------------------------- LICENCE END --------------------------------------
!     #################################

      MODULE MODI_COEF_VER_INTERP_LIN2D 2
!     #################################
!

INTERFACE COEF_VER_INTERP_LIN2D,1
!
!     #############################################################
      SUBROUTINE COEF_VER_INTERP_LIN2D(PZ1,PZ2,KKLIN,PCOEFLIN,OLEUG)
!     #############################################################
!
! second dimension of the arrays is vertical
!
REAL,   DIMENSION(:,:),  INTENT(IN) :: PZ1      ! altitudes of the points of the
!                                               ! initial grid 
REAL,   DIMENSION(:,:),  INTENT(IN) :: PZ2      ! altitudes of the points of the
!                                               ! target grid 
INTEGER, DIMENSION(:,:), INTENT(OUT), OPTIONAL :: KKLIN ! number of the level
                                                ! of the data to be interpolated
!
REAL,    DIMENSION(:,:), INTENT(OUT), OPTIONAL :: PCOEFLIN ! interpolation
                                                ! coefficient
LOGICAL, OPTIONAL,       INTENT(IN) ::   OLEUG  ! for linear extrapolation under the ground
!
END SUBROUTINE COEF_VER_INTERP_LIN2D
!
END INTERFACE
!
END MODULE MODI_COEF_VER_INTERP_LIN2D