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C Copyright 1981-2012 ECMWF.
C
C This software is licensed under the terms of the Apache Licence
C Version 2.0 which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
C
C In applying this licence, ECMWF does not waive the privileges and immunities
C granted to it by virtue of its status as an intergovernmental organisation
C nor does it submit to any jurisdiction.
C
C**** "grdynam.h"
C
C PURPOSE
C _______
C
C This file contains all the dynamic work space array definitions
C for grid point to grid point interpolation.
C
C INTERFACE
C _________
C
C #include "grdynam.h"
C
C Common block usage
C __________________
C
C GRID_POINT
C
C NILATGP - POINTER to array MILATG.
C NILONGP - POINTER to array MILONG.
C NILSMP - POINTER to array MILSM.
C NINPNTP - POINTER to array RINPNT.
C NISTRTP - POINTER to array MISTRT.
C NNSDISTP - POINTER to array MNSDIST.
C NNSINDP - POINTER to array MNSIND.
C NMAXP - POINTER to array RMAX.
C NOLATGP - POINTER to array MOLATG.
C NOLONGP - POINTER to array MOLONG.
C NOLSMP - POINTER to array MOLSM.
C NWEDISTP - POINTER to array MWEDIST.
C NWEINDP - POINTER to array MWEIND.
C NWFACTP - POINTER to array WFACT.
C
C MILATG - Dynamic array of length (NINS) (see nifld.common)
C which holds the values of the input field
C latitudes.
C MILONG - Dynamic array of length (NIWE + 1) (see
C nifld.common) which holds the values of the
C input field longitudes.
C MILSM - Dynamic array of length (NIWE, 2) (see
C nifld.common) used in calculating the effects of
C the land sea mask on interpolation.
C MISTRT - Dynamic array of length (NINS) (see nifld.common)
C which holds the array offsets of the start of
C each latitude line for a quasi regular Gaussian
C input field. No space is assigned to this array
C for a regular input field.
C MNSDIST - Dynamic array of length (2, NONS) (see
C nofld.common) which holds the distances to
C neighbouring latitude lines of the input field
C from the associated line of latitude in the
C output field.
C MNSIND - Dynamic array of length (2, NONS) (see
C nofld.common) which holds the latitude line
C numbers (array offset) of the input field
C associated with each line of latitude in the
C output field.
C MOLATG - Dynamic array of length (NONS) (see nofld.common)
C which holds the values of the output field
C latitudes.
C MOLONG - Dynamic array of length (NOWE) (see nofld.common)
C which holds the values of the output field
C longitudes.
C MOLSM - Dynamic array of length (NOWE) (see nofld.common)
C used in calculating the effects of the land sea
C mask on interpolation.
C MWEDIST - Dynamic array of length (2, NONS) for a regular
C input field and of length (2, 2 * NONS * NOWE)
C (see nofld.common) for a quasi regular Gaussian
C input field. This array holds the distances to
C neighbouring longitude points of the input field
C from the associated longitude points in the
C output field.
C MWEIND - Dynamic array of length (2, NONS) for a regular
C input field and of length (2, 2 * NONS * NOWE)
C (see nofld.common) for a quasi regular Gaussian
C input field. This array holds the longitude
C points (array offset) from the input field
C associated with each longitude point in the
C output field.
C RINPNT - Dynamic array of length (NOWE) (see nofld.common)
C used to aid vectorisation in processing
C precipitation fields.
C RMAX - Dynamic array of length (NOWE) (see nofld.common)
C used to aid vectorisation in processing
C precipitation fields.
C WFACT - Dynamic array of length (4, NOWE * NONS) (see
C nofld.common) which holds the interpolation
C weights for each point in the output field.
C
C AUTHOR
C ______
C
C K. Fielding *ECMWF* Jan 1994
C
C MODIFICATIONS
C _____________
C
C J.D.Chambers ECMWF June 1996
C
C
C -----------------------------------------------------------------|
C* Section 2. Pointer variable declaration and common
C -----------------------------------------------------------------|
C
#ifdef POINTER_64
INTEGER*8
#else
INTEGER
#endif
1 NILONGP, NILATGP, NOLONGP, NOLATGP, NNSINDP, NNSDISTP,
2 NWEINDP, NWEDISTP, NISTRTP, NILSMP, NOLSMP, NWFACTP,
3 NMAXP, NINPNTP
C
COMMON /GRID_POINT/
1 NILONGP, NILATGP, NOLONGP, NOLATGP, NNSINDP, NNSDISTP,
2 NWEINDP, NWEDISTP, NISTRTP, NILSMP, NOLSMP, NWFACTP,
3 NMAXP, NINPNTP
C
SAVE /GRID_POINT/
C
C -----------------------------------------------------------------|
C* Section 3. Pointer and array combination
C Array dimensions are in nifld.common and
C nofld.common
C -----------------------------------------------------------------|
C
INTEGER MILONG, MOLONG, MILATG, MOLATG, MNSIND, MNSDIST,
1 MWEIND, MWEDIST, MISTRT, MILSM, MOLSM
C
REAL WFACT, RMAX, RINPNT
C
POINTER (NILONGP, MILONG (NIWE + 1) )
POINTER (NOLONGP, MOLONG (NOWE) )
POINTER (NILATGP, MILATG (NINS) )
POINTER (NOLATGP, MOLATG (NONS) )
POINTER (NNSINDP, MNSIND (2, NONS) )
POINTER (NNSDISTP, MNSDIST (2, NONS) )
C
POINTER (NWFACTP, WFACT (4, NOWE * NONS) )
C These arrays are only used as (2, NOWE) for regular input
C
POINTER (NWEINDP, MWEIND (2, 2 * NOWE * NONS) )
POINTER (NWEDISTP, MWEDIST (2, 2 * NOWE * NONS) )
C
C These arrays are not used for regular input
C
POINTER (NISTRTP, MISTRT (NINS) )
C
C These arrays are not used unless OLSM is .TRUE.
C
POINTER (NILSMP, MILSM (NIWE, 2) )
POINTER (NOLSMP, MOLSM (NOWE) )
C
C Works space for precipitation
C
POINTER (NMAXP, RMAX (NOWE) )
POINTER (NINPNTP, RINPNT (NOWE) )
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