!-------------------------------------- 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
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CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C
C FFTPACK 5.0
C Copyright (C) 1995-2004, Scientific Computing Division,
C University Corporation for Atmospheric Research
C Licensed under the GNU General Public License (GPL)
C
C Authors: Paul N. Swarztrauber and Richard A. Valent
C
C $Id: mradb5_8.ftn,v 1.2 2010/08/20 16:39:42 armaanl Exp $
C
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
SUBROUTINE MRADB5_8 (M,IDO,L1,CC,IM1,IN1,CH,IM2,IN2, 2
1 WA1,WA2,WA3,WA4)
#include "taglam4d.cdk"
REAL*8 CC(IN1,IDO,5,L1) ,CH(IN2,IDO,L1,5),
1 WA1(IDO) ,WA2(IDO) ,WA3(IDO) ,WA4(IDO)
real*8 ARG,TR11,TI11,TR12,TI12
C
M1D = (M-1)*IM1+1
M2S = 1-IM2
ARG=2.d0*4.d0*DATAN(1.d0)/5.d0
TR11=DCOS(ARG)
TI11=DSIN(ARG)
TR12=DCOS(2.d0*ARG)
TI12=DSIN(2.d0*ARG)
DO 101 K=1,L1
M2 = M2S
DO 1001 M1=1,M1D,IM1
M2 = M2+IM2
CH(M2,1,K,1) = CC(M1,1,1,K)+2.*CC(M1,IDO,2,K)+2.*CC(M1,IDO,4,K)
CH(M2,1,K,2) = (CC(M1,1,1,K)+TR11*2.*CC(M1,IDO,2,K)
1 +TR12*2.*CC(M1,IDO,4,K))-(TI11*2.*CC(M1,1,3,K)
1 +TI12*2.*CC(M1,1,5,K))
CH(M2,1,K,3) = (CC(M1,1,1,K)+TR12*2.*CC(M1,IDO,2,K)
1 +TR11*2.*CC(M1,IDO,4,K))-(TI12*2.*CC(M1,1,3,K)
1 -TI11*2.*CC(M1,1,5,K))
CH(M2,1,K,4) = (CC(M1,1,1,K)+TR12*2.*CC(M1,IDO,2,K)
1 +TR11*2.*CC(M1,IDO,4,K))+(TI12*2.*CC(M1,1,3,K)
1 -TI11*2.*CC(M1,1,5,K))
CH(M2,1,K,5) = (CC(M1,1,1,K)+TR11*2.*CC(M1,IDO,2,K)
1 +TR12*2.*CC(M1,IDO,4,K))+(TI11*2.*CC(M1,1,3,K)
1 +TI12*2.*CC(M1,1,5,K))
1001 CONTINUE
101 CONTINUE
IF (IDO .EQ. 1) RETURN
IDP2 = IDO+2
DO 103 K=1,L1
DO 102 I=3,IDO,2
IC = IDP2-I
M2 = M2S
DO 1002 M1=1,M1D,IM1
M2 = M2+IM2
CH(M2,I-1,K,1) = CC(M1,I-1,1,K)+(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K))
CH(M2,I,K,1) = CC(M1,I,1,K)+(CC(M1,I,3,K)-CC(M1,IC,2,K))
1 +(CC(M1,I,5,K)-CC(M1,IC,4,K))
CH(M2,I-1,K,2) = WA1(I-2)*((CC(M1,I-1,1,K)+TR11*
1 (CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))+TR12
1 *(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))-(TI11*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))+TI12*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
1 -WA1(I-1)*((CC(M1,I,1,K)+TR11*(CC(M1,I,3,K)-CC(M1,IC,2,K))
1 +TR12*(CC(M1,I,5,K)-CC(M1,IC,4,K)))+(TI11*(CC(M1,I-1,3,K)
1 -CC(M1,IC-1,2,K))+TI12*(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
CH(M2,I,K,2) = WA1(I-2)*((CC(M1,I,1,K)+TR11*(CC(M1,I,3,K)
1 -CC(M1,IC,2,K))+TR12*(CC(M1,I,5,K)-CC(M1,IC,4,K)))
1 +(TI11*(CC(M1,I-1,3,K)-CC(M1,IC-1,2,K))+TI12
1 *(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))+WA1(I-1)
1 *((CC(M1,I-1,1,K)+TR11*(CC(M1,I-1,3,K)
1 +CC(M1,IC-1,2,K))+TR12*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))
1 -(TI11*(CC(M1,I,3,K)+CC(M1,IC,2,K))+TI12
1 *(CC(M1,I,5,K)+CC(M1,IC,4,K))))
CH(M2,I-1,K,3) = WA2(I-2)
1 *((CC(M1,I-1,1,K)+TR12*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR11*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))-(TI12*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))-TI11*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
1 -WA2(I-1)
1 *((CC(M1,I,1,K)+TR12*(CC(M1,I,3,K)-
1 CC(M1,IC,2,K))+TR11*(CC(M1,I,5,K)-CC(M1,IC,4,K)))
1 +(TI12*(CC(M1,I-1,3,K)-CC(M1,IC-1,2,K))-TI11
1 *(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
CH(M2,I,K,3) = WA2(I-2)
1 *((CC(M1,I,1,K)+TR12*(CC(M1,I,3,K)-
1 CC(M1,IC,2,K))+TR11*(CC(M1,I,5,K)-CC(M1,IC,4,K)))
1 +(TI12*(CC(M1,I-1,3,K)-CC(M1,IC-1,2,K))-TI11
1 *(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
1 +WA2(I-1)
1 *((CC(M1,I-1,1,K)+TR12*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR11*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))-(TI12*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))-TI11*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
CH(M2,I-1,K,4) = WA3(I-2)
1 *((CC(M1,I-1,1,K)+TR12*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR11*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))+(TI12*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))-TI11*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
1 -WA3(I-1)
1 *((CC(M1,I,1,K)+TR12*(CC(M1,I,3,K)-
1 CC(M1,IC,2,K))+TR11*(CC(M1,I,5,K)-CC(M1,IC,4,K)))
1 -(TI12*(CC(M1,I-1,3,K)-CC(M1,IC-1,2,K))-TI11
1 *(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
CH(M2,I,K,4) = WA3(I-2)
1 *((CC(M1,I,1,K)+TR12*(CC(M1,I,3,K)-
1 CC(M1,IC,2,K))+TR11*(CC(M1,I,5,K)-CC(M1,IC,4,K)))
1 -(TI12*(CC(M1,I-1,3,K)-CC(M1,IC-1,2,K))-TI11
1 *(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
1 +WA3(I-1)
1 *((CC(M1,I-1,1,K)+TR12*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR11*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))+(TI12*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))-TI11*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
CH(M2,I-1,K,5) = WA4(I-2)
1 *((CC(M1,I-1,1,K)+TR11*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR12*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))+(TI11*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))+TI12*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
1 -WA4(I-1)
1 *((CC(M1,I,1,K)+TR11*(CC(M1,I,3,K)-CC(M1,IC,2,K))
1 +TR12*(CC(M1,I,5,K)-CC(M1,IC,4,K)))-(TI11*(CC(M1,I-1,3,K)
1 -CC(M1,IC-1,2,K))+TI12*(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
CH(M2,I,K,5) = WA4(I-2)
1 *((CC(M1,I,1,K)+TR11*(CC(M1,I,3,K)-CC(M1,IC,2,K))
1 +TR12*(CC(M1,I,5,K)-CC(M1,IC,4,K)))-(TI11*(CC(M1,I-1,3,K)
1 -CC(M1,IC-1,2,K))+TI12*(CC(M1,I-1,5,K)-CC(M1,IC-1,4,K))))
1 +WA4(I-1)
1 *((CC(M1,I-1,1,K)+TR11*(CC(M1,I-1,3,K)+CC(M1,IC-1,2,K))
1 +TR12*(CC(M1,I-1,5,K)+CC(M1,IC-1,4,K)))+(TI11*(CC(M1,I,3,K)
1 +CC(M1,IC,2,K))+TI12*(CC(M1,I,5,K)+CC(M1,IC,4,K))))
1002 CONTINUE
102 CONTINUE
103 CONTINUE
RETURN
END