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FETCH.f90
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SUBROUTINE Fetch(MeshParam,HydroParam)
! This routine calculates the "Lake Fetch" for every computational cell in eigth directions:
! North (N), Northeast (NE), East (E), Southeast (SE), South (S), Southwest (SW), West (W), Northwest (NW)
! Called in routine 0-MAIN
Use MeshVars
Use Hydrodynamic
IMPLICIT NONE
Real:: dDIAG
INTEGER:: contador, N
type(MeshGridParam) :: MeshParam
type(HydrodynamicParam) :: HydroParam
! Setting initial conditions for auxiliary variables
MeshParam%trv = 0
MeshParam%NEIBN = 0
MeshParam%NEIBL = 0
MeshParam%NEIBS = 0
MeshParam%NEIBO = 0
HydroParam%fetch_m = 0.
dDIAG = SQRT(MeshParam%DX*MeshParam%DX+MeshParam%DY*MeshParam%DY)
! Winds in the Northward Direction
MeshParam%trv = 1 ! Save the kind of cell
WHERE(MeshParam%trv < 0)
MeshParam%trv = 0 ! This cell is out of the interest region
END WHERE
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,1) = HydroParam%fetch_m(:,1) + MeshParam%DY
END WHERE
DO N = 1,MeshParam%nElem
IF ( MeshParam%NEIBN(N) == 0.or.MeshParam%NEIBN(N) == -1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N) == 0 ) THEN
If (MeshParam%NEIBS(N)/=0) MeshParam%NEIBN(MeshParam%NEIBS(N))=0
ENDIF
IF (MeshParam%trv(N) > 0) THEN
contador = contador + 1
ENDIF
ENDDO
END DO
! --------------------------------------------------------------
! Winds in the Northeastward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,2) = HydroParam%fetch_m(:,2) + dDIAG
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBN(N)==0.OR.MeshParam%NEIBL(N)==0.or.MeshParam%NEIBN(N)==-1.OR.MeshParam%NEIBL(N)==-1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF (MeshParam%trv(N) == 0) THEN
If (MeshParam%NEIBS(N)/=0) MeshParam%NEIBN(MeshParam%NEIBS(N))=0
If (MeshParam%NEIBO(N)/=0) MeshParam%NEIBL(MeshParam%NEIBO(N))=0
ENDIF
IF (MeshParam%trv(N) > 0) THEN
contador = contador + 1
ENDIF
ENDDO
END DO
! --------------------------------------------------------------
! Winds in the Eastward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,3) = HydroParam%fetch_m(:,3) + MeshParam%DX
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBL(N) ==0.or.MeshParam%NEIBL(N) ==-1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF (MeshParam%trv(N) == 0) THEN
If (MeshParam%NEIBO(N)/=0) MeshParam%NEIBL(MeshParam%NEIBO(N))=0
ENDIF
IF (MeshParam%trv(N) > 0) THEN
contador = contador + 1
ENDIF
ENDDO
END DO
! --------------------------------------------------------------
! Winds in the Southeastward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,4) = HydroParam%fetch_m(:,4) + dDIAG
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBS(N)==0.OR.MeshParam%NEIBL(N)==0.or.MeshParam%NEIBS(N)==-1.OR.MeshParam%NEIBL(N)==-1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N)==0 ) THEN
If (MeshParam%NEIBN(N)/=0) MeshParam%NEIBS(MeshParam%NEIBN(N)) = 0
If (MeshParam%NEIBO(N)/=0) MeshParam%NEIBL(MeshParam%NEIBO(N)) = 0
ENDIF
IF (MeshParam%trv(N) > 0) THEN
contador = contador + 1
ENDIF
ENDDO
ENDDO
! --------------------------------------------------------------
! Winds in the Southward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,5) = HydroParam%fetch_m(:,5) + MeshParam%DY
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBS(N) == 0.or.MeshParam%NEIBS(N) == -1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N) == 0 ) THEN
If (MeshParam%NEIBN(N)/=0) MeshParam%NEIBS(MeshParam%NEIBN(N))=0
ENDIF
IF ( MeshParam%trv(N) > 0 ) THEN
contador = contador + 1
ENDIF
ENDDO
ENDDO
! --------------------------------------------------------------
! Winds in the Southwestward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,6) = HydroParam%fetch_m(:,6) + dDIAG
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBS(N)==0.OR.MeshParam%NEIBO(N)==0.or.MeshParam%NEIBS(N)==-1.OR.MeshParam%NEIBO(N)==-1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N) == 0 ) THEN
If (MeshParam%NEIBN(N)/=0) MeshParam%NEIBS(MeshParam%NEIBN(N))=0
If (MeshParam%NEIBL(N)/=0) MeshParam%NEIBO(MeshParam%NEIBL(N))=0
ENDIF
IF ( MeshParam%trv(N) > 0 ) THEN
contador = contador + 1
ENDIF
ENDDO
ENDDO
! --------------------------------------------------------------
! Winds in the Westward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,7) = HydroParam%fetch_m(:,7) + MeshParam%DX
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBO(N) == 0.or.MeshParam%NEIBO(N) == -1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N)==0 ) THEN
If (MeshParam%NEIBL(N)/=0) MeshParam%NEIBO(MeshParam%NEIBL(N))=0
ENDIF
IF ( MeshParam%trv(N) > 0 ) THEN
contador = contador + 1
ENDIF
ENDDO
ENDDO
! --------------------------------------------------------------
! Winds in the Northwestward Direction
MeshParam%trv = 1
MeshParam%NEIBN = MeshParam%Neighbor(1,:) ! North Neighbour
MeshParam%NEIBL = MeshParam%Neighbor(4,:) ! East Neighbour
MeshParam%NEIBS = MeshParam%Neighbor(3,:) ! South Neighbour
MeshParam%NEIBO = MeshParam%Neighbor(2,:) ! West Neighbour
contador = 1
DO WHILE(contador > 0)
WHERE(MeshParam%trv > 0)
HydroParam%fetch_m(:,8) = HydroParam%fetch_m(:,8) + dDIAG
END WHERE
DO N=1,MeshParam%nElem
IF ( MeshParam%NEIBN(N)==0.OR.MeshParam%NEIBO(N)==0.or.MeshParam%NEIBN(N)==-1.OR.MeshParam%NEIBO(N)==-1 ) THEN
MeshParam%trv(N) = 0
ENDIF
ENDDO
contador = 0
DO N=1,MeshParam%nElem
IF ( MeshParam%trv(N) == 0) THEN
If (MeshParam%NEIBS(N)/=0) MeshParam%NEIBN(MeshParam%NEIBS(N)) = 0
If (MeshParam%NEIBL(N)/=0) MeshParam%NEIBO(MeshParam%NEIBL(N)) = 0
ENDIF
IF ( MeshParam%trv(N) > 0 ) THEN
contador = contador + 1
ENDIF
ENDDO
ENDDO
! --------------------------------------------------------------
RETURN
END SUBROUTINE Fetch