phylmd/Orography/start_init_orog_m.f90

MODULE start_init_orog_m

  ! From startvar.F, version 1.4
  ! 2006/01/27 15:14:22 Fairhead

  IMPLICIT NONE

  REAL, ALLOCATABLE, SAVE:: mask(:, :) ! fraction of land (iim + 1, jjm + 1)
  REAL, ALLOCATABLE, SAVE:: phis(:, :) ! surface geopotential, in m2 s-2

CONTAINS

  SUBROUTINE start_init_orog(relief, zstd_2d, zsig_2d, zgam_2d, zthe_2d, &
       zpic_2d, zval_2d)

    USE flincom, only: flininfo, flinopen_nozoom, flinclo
    use flinget_m, only: flinget
    use conf_dat2d_m, only: conf_dat2d
    use comgeom, only: rlatu, rlonv
    use dimens_m, only: iim, jjm
    use indicesol, only: epsfra
    use comconst, only: pi
    use grid_noro_m, only: grid_noro

    REAL, intent(out):: relief(:, :) ! orographie moyenne

    REAL, intent(out):: zstd_2d(:, :)
    ! (deviation standard de l'orographie sous-maille)

    REAL, intent(out):: zsig_2d(:, :)
    ! (pente de l'orographie sous-maille)
    
    REAL, intent(out):: zgam_2d(:, :)
    ! (anisotropie de l'orographie sous maille)

    REAL, intent(out):: zthe_2d(:, :)
    ! (orientation de l'axe oriente dans la direction de plus grande
    ! pente de l'orographie sous maille)

    REAL, intent(out):: zpic_2d(:, :) ! hauteur pics de la SSO
    REAL, intent(out):: zval_2d(:, :) ! hauteur vallees de la SSO

    ! Local:

    INTEGER, SAVE:: iml_rel
    INTEGER, SAVE:: jml_rel
    REAL lev(1), date, dt
    INTEGER itau(1), fid
    INTEGER  llm_tmp, ttm_tmp
    REAL, ALLOCATABLE:: relief_hi(:, :)
    REAL, ALLOCATABLE:: lon_rad(:), lat_rad(:)
    REAL, ALLOCATABLE:: lon_ini(:), lat_ini(:)
    REAL, ALLOCATABLE:: lon_rel(:, :), lat_rel(:, :)

    CHARACTER(len=120) orogfname

    !-----------------------------------

    print *, "Call sequence information: start_init_orog"

    if (any((/size(relief, 1), size(zstd_2d, 1), size(zsig_2d, 1), &
         size(zgam_2d, 1), size(zthe_2d, 1), size(zpic_2d, 1), &
         size(zval_2d, 1)/) /= iim + 1)) stop "start_init_orog size 1"
    if (any((/size(relief, 2), size(zstd_2d, 2), size(zsig_2d, 2), &
         size(zgam_2d, 2), size(zthe_2d, 2), size(zpic_2d, 2), &
         size(zval_2d, 2)/) /= jjm + 1)) stop "start_init_orog size 2"

    orogfname = 'Relief.nc'
    print *, 'Reading the high resolution orography'

    CALL flininfo(orogfname, iml_rel, jml_rel, llm_tmp, ttm_tmp, fid)

    ALLOCATE(lat_rel(iml_rel, jml_rel))
    ALLOCATE(lon_rel(iml_rel, jml_rel))
    ALLOCATE(relief_hi(iml_rel, jml_rel))

    CALL flinopen_nozoom(iml_rel, jml_rel, llm_tmp, &
         lon_rel, lat_rel, lev, ttm_tmp, itau, date, dt, fid)
    ! 'RELIEF': high resolution orography 
    CALL flinget(fid, 'RELIEF', iml_rel, jml_rel, llm_tmp, ttm_tmp, 1, 1, &
         relief_hi)
    CALL flinclo(fid)

    ! In case we have a file which is in degrees we do the transformation:

    ALLOCATE(lon_rad(iml_rel))
    ALLOCATE(lon_ini(iml_rel))

    IF (MAXVAL(lon_rel(:, :)) > pi) THEN
       lon_ini(:) = lon_rel(:, 1) * pi / 180.
    ELSE
       lon_ini(:) = lon_rel(:, 1) 
    ENDIF

    ALLOCATE(lat_rad(jml_rel))
    ALLOCATE(lat_ini(jml_rel))

    IF (MAXVAL(lat_rel(:, :)) > pi) THEN
       lat_ini(:) = lat_rel(1, :) * pi / 180.
    ELSE
       lat_ini(:) = lat_rel(1, :) 
    ENDIF

    CALL conf_dat2d(lon_ini, lat_ini, lon_rad, lat_rad, relief_hi , &
         interbar=.FALSE.)

    print *, 'Compute all the parameters needed for the gravity wave drag code'

    ! Allocate the data we need to put in the interpolated fields:
    ALLOCATE(phis(iim + 1, jjm + 1))
    ALLOCATE(mask(iim + 1, jjm + 1))

    CALL grid_noro(lon_rad, lat_rad, relief_hi, rlonv, rlatu, phis, relief, &
         zstd_2d, zsig_2d, zgam_2d, zthe_2d, zpic_2d, zval_2d, mask)

    phis(iim + 1, :) = phis(1, :)
    phis(:, :) = phis(:, :) * 9.81

    mask(2:, 1) = mask(1, 1) ! north pole
    mask(2:, jjm + 1) = mask(1, jjm + 1) ! south pole
    mask(iim + 1, 2:jjm) = mask(1, 2:jjm) ! Greenwich
    WHERE (mask < EPSFRA)
       mask = 0.
    elsewhere (1. - mask < EPSFRA)
       mask = 1.
    endwhere

  END SUBROUTINE start_init_orog

END MODULE start_init_orog_m
1	MODULE start_init_orog_m
2
3	! From startvar.F, version 1.4
4	! 2006/01/27 15:14:22 Fairhead
5
6	IMPLICIT NONE
7
8	REAL, ALLOCATABLE, SAVE:: mask(:, :) ! fraction of land (iim + 1, jjm + 1)
9	REAL, ALLOCATABLE, SAVE:: phis(:, :) ! surface geopotential, in m2 s-2
10
11	CONTAINS
12
13	SUBROUTINE start_init_orog(relief, zstd_2d, zsig_2d, zgam_2d, zthe_2d, &
14	zpic_2d, zval_2d)
15
16	USE flincom, only: flininfo, flinopen_nozoom, flinclo
17	use flinget_m, only: flinget
18	use conf_dat2d_m, only: conf_dat2d
19	use comgeom, only: rlatu, rlonv
20	use dimens_m, only: iim, jjm
21	use indicesol, only: epsfra
22	use comconst, only: pi
23	use grid_noro_m, only: grid_noro
24
25	REAL, intent(out):: relief(:, :) ! orographie moyenne
26
27	REAL, intent(out):: zstd_2d(:, :)
28	! (deviation standard de l'orographie sous-maille)
29
30	REAL, intent(out):: zsig_2d(:, :)
31	! (pente de l'orographie sous-maille)
32
33	REAL, intent(out):: zgam_2d(:, :)
34	! (anisotropie de l'orographie sous maille)
35
36	REAL, intent(out):: zthe_2d(:, :)
37	! (orientation de l'axe oriente dans la direction de plus grande
38	! pente de l'orographie sous maille)
39
40	REAL, intent(out):: zpic_2d(:, :) ! hauteur pics de la SSO
41	REAL, intent(out):: zval_2d(:, :) ! hauteur vallees de la SSO
42
43	! Local:
44
45	INTEGER, SAVE:: iml_rel
46	INTEGER, SAVE:: jml_rel
47	REAL lev(1), date, dt
48	INTEGER itau(1), fid
49	INTEGER llm_tmp, ttm_tmp
50	REAL, ALLOCATABLE:: relief_hi(:, :)
51	REAL, ALLOCATABLE:: lon_rad(:), lat_rad(:)
52	REAL, ALLOCATABLE:: lon_ini(:), lat_ini(:)
53	REAL, ALLOCATABLE:: lon_rel(:, :), lat_rel(:, :)
54
55	CHARACTER(len=120) orogfname
56
57	!-----------------------------------
58
59	print *, "Call sequence information: start_init_orog"
60
61	if (any((/size(relief, 1), size(zstd_2d, 1), size(zsig_2d, 1), &
62	size(zgam_2d, 1), size(zthe_2d, 1), size(zpic_2d, 1), &
63	size(zval_2d, 1)/) /= iim + 1)) stop "start_init_orog size 1"
64	if (any((/size(relief, 2), size(zstd_2d, 2), size(zsig_2d, 2), &
65	size(zgam_2d, 2), size(zthe_2d, 2), size(zpic_2d, 2), &
66	size(zval_2d, 2)/) /= jjm + 1)) stop "start_init_orog size 2"
67
68	orogfname = 'Relief.nc'
69	print *, 'Reading the high resolution orography'
70
71	CALL flininfo(orogfname, iml_rel, jml_rel, llm_tmp, ttm_tmp, fid)
72
73	ALLOCATE(lat_rel(iml_rel, jml_rel))
74	ALLOCATE(lon_rel(iml_rel, jml_rel))
75	ALLOCATE(relief_hi(iml_rel, jml_rel))
76
77	CALL flinopen_nozoom(iml_rel, jml_rel, llm_tmp, &
78	lon_rel, lat_rel, lev, ttm_tmp, itau, date, dt, fid)
79	! 'RELIEF': high resolution orography
80	CALL flinget(fid, 'RELIEF', iml_rel, jml_rel, llm_tmp, ttm_tmp, 1, 1, &
81	relief_hi)
82	CALL flinclo(fid)
83
84	! In case we have a file which is in degrees we do the transformation:
85
86	ALLOCATE(lon_rad(iml_rel))
87	ALLOCATE(lon_ini(iml_rel))
88
89	IF (MAXVAL(lon_rel(:, :)) > pi) THEN
90	lon_ini(:) = lon_rel(:, 1) * pi / 180.
91	ELSE
92	lon_ini(:) = lon_rel(:, 1)
93	ENDIF
94
95	ALLOCATE(lat_rad(jml_rel))
96	ALLOCATE(lat_ini(jml_rel))
97
98	IF (MAXVAL(lat_rel(:, :)) > pi) THEN
99	lat_ini(:) = lat_rel(1, :) * pi / 180.
100	ELSE
101	lat_ini(:) = lat_rel(1, :)
102	ENDIF
103
104	CALL conf_dat2d(lon_ini, lat_ini, lon_rad, lat_rad, relief_hi , &
105	interbar=.FALSE.)
106
107	print *, 'Compute all the parameters needed for the gravity wave drag code'
108
109	! Allocate the data we need to put in the interpolated fields:
110	ALLOCATE(phis(iim + 1, jjm + 1))
111	ALLOCATE(mask(iim + 1, jjm + 1))
112
113	CALL grid_noro(lon_rad, lat_rad, relief_hi, rlonv, rlatu, phis, relief, &
114	zstd_2d, zsig_2d, zgam_2d, zthe_2d, zpic_2d, zval_2d, mask)
115
116	phis(iim + 1, :) = phis(1, :)
117	phis(:, :) = phis(:, :) * 9.81
118
119	mask(2:, 1) = mask(1, 1) ! north pole
120	mask(2:, jjm + 1) = mask(1, jjm + 1) ! south pole
121	mask(iim + 1, 2:jjm) = mask(1, 2:jjm) ! Greenwich
122	WHERE (mask < EPSFRA)
123	mask = 0.
124	elsewhere (1. - mask < EPSFRA)
125	mask = 1.
126	endwhere
127
128	END SUBROUTINE start_init_orog
129
130	END MODULE start_init_orog_m