| 1 | # -*- Mode: python -*- |
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| 2 | ### - |
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| 3 | ### - Computes polynomial fit |
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| 4 | ### - |
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| 5 | ## - |
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| 6 | ## - Olivier Marti (olivier.marti@lsce.ipsl.fr) |
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| 7 | ## - Institut Pierre Simon Laplace |
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| 8 | ## - Laboratoire des Sciences du Climate et de L'environnment |
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| 9 | ## - |
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| 10 | print 'Demarrage' |
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| 11 | ## - Needed Python modules |
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| 12 | import cdms2, MV2, numpy as np |
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| 13 | import nemo |
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| 14 | |
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| 15 | def clo_lon (lon, lon_ref) : # Find closest longitude |
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| 16 | z0 = lon |
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| 17 | for nn in range (2) : |
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| 18 | z0 = np.where ( z0 > lon_ref+180.0, z0-360.0, z0) |
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| 19 | z0 = np.where ( z0 < lon_ref-180.0, z0+360.0, z0) |
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| 20 | |
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| 21 | return z0 |
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| 22 | |
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| 23 | ## - NetCDF parameters |
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| 24 | # - If you want to turn that off or set different values of compression use the functions: |
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| 25 | cdms2.setNetcdfShuffleFlag (0) |
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| 26 | cdms2.setNetcdfDeflateFlag (0) |
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| 27 | cdms2.setNetcdfDeflateLevelFlag(0) |
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| 28 | |
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| 29 | print 'Ouverture fichier' |
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| 30 | f_grid = cdms2.open ( 'tmp_ORCA025_coordinates_mask.nc', 'r+' ) |
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| 31 | |
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| 32 | print 'Lecture tmask' |
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| 33 | tmask = f_grid ( 'mask_T' ) |
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| 34 | |
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| 35 | print 'Lecture des axes' |
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| 36 | yy = tmask.getAxis(0) ; ny = len(yy) |
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| 37 | xx = tmask.getAxis(1) ; nx = len(xx) |
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| 38 | |
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| 39 | print 'Creation axe' |
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| 40 | nvertex = cdms2.createAxis ( np.arange (4) ) |
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| 41 | |
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| 42 | print 'Lecture lon lat' |
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| 43 | glamt = f_grid ( 'nav_lon_grid_T' ).filled(0) |
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| 44 | gphit = f_grid ( 'nav_lat_grid_T' ).filled(0) |
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| 45 | glamu = f_grid ( 'nav_lon_grid_U' ).filled(0) |
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| 46 | gphiu = f_grid ( 'nav_lat_grid_U' ).filled(0) |
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| 47 | glamv = f_grid ( 'nav_lon_grid_V' ).filled(0) |
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| 48 | gphiv = f_grid ( 'nav_lat_grid_V' ).filled(0) |
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| 49 | glamf = f_grid ( 'nav_lon_grid_F' ).filled(0) |
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| 50 | gphif = f_grid ( 'nav_lon_grid_F' ).filled(0) |
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| 51 | |
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| 52 | |
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| 53 | # Construction des limites |
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| 54 | # 1,2->3 2,2->2 |
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| 55 | # 1,1->0 2,1->1 |
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| 56 | |
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| 57 | # :, :, \([1,2]\), \([1,2]\) |
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| 58 | # \1, \2, :, : |
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| 59 | |
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| 60 | print 'Creation bounds_*_T' |
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| 61 | bounds_lon_grid_T = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 62 | bounds_lat_grid_T = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 63 | |
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| 64 | print 'Calcul bounds_*_T' |
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| 65 | bounds_lon_grid_T [ :, :, 0] = np.roll ( np.roll ( glamf [:,:], 1, axis=0), 1, axis=1) # EOSHIFT (CSHIFT (glamf(:,:), -1, dim = 1), -1, dim = 2 ) |
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| 66 | bounds_lon_grid_T [ :, :, 1] = np.roll ( glamf [:,:], 1, axis=0) # CSHIFT (glamf(:,:), -1, dim = 2 ) |
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| 67 | bounds_lon_grid_T [ :, :, 3] = np.roll ( glamf [:,:], 1, axis=1) # CSHIFT (glamf(:,:), -1, dim = 1 ) |
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| 68 | bounds_lon_grid_T [ :, :, 2] = glamf [:,:] |
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| 69 | |
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| 70 | bounds_lat_grid_T [ :, :, 0] = np.roll ( np.roll ( gphif [:,:], 1, axis=0), 1, axis=1) |
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| 71 | bounds_lat_grid_T [ :, :, 1] = np.roll ( gphif [:,:], 1, axis=0) |
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| 72 | bounds_lat_grid_T [ :, :, 3] = np.roll ( gphif [:,:], 1, axis=1) |
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| 73 | bounds_lat_grid_T [ :, :, 2] = gphif [:,:] |
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| 74 | |
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| 75 | bounds_lon_grid_T = cdms2.createVariable ( bounds_lon_grid_T, axes=(yy, xx, nvertex), id='bounds_lon_grid_T', dtype=np.float32 ) |
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| 76 | bounds_lat_grid_T = cdms2.createVariable ( bounds_lat_grid_T, axes=(yy, xx, nvertex), id='bounds_lat_grid_T', dtype=np.float32 ) |
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| 77 | |
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| 78 | print 'Calcul bounds_*_U' |
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| 79 | bounds_lon_grid_U = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 80 | bounds_lat_grid_U = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 81 | |
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| 82 | bounds_lon_grid_U [ :, :, 0] = np.roll ( glamv [:,:], 1, axis=0) # CSHIFT (glamv(:,:), -1, dim = 2 ) |
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| 83 | bounds_lon_grid_U [ :, :, 1] = np.roll ( np.roll ( glamv [:,:], 1, axis=0), 1, axis=1) # EOSHIFT (CSHIFT (glamv(:,:), 1, dim = 1 ), -1, dim = 2) |
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| 84 | bounds_lon_grid_U [ :, :, 3] = glamv [:,:] |
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| 85 | bounds_lon_grid_U [ :, :, 2] = np.roll ( glamv [:,:], 1, axis=1) # CSHIFT (glamv(:,:), 1, dim = 1 ) |
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| 86 | |
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| 87 | bounds_lat_grid_U [ :, :, 0] = np.roll ( gphiv [:,:], 1, axis=0) |
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| 88 | bounds_lat_grid_U [ :, :, 1] = np.roll ( np.roll ( gphiv [:,:], 1, axis=0), 1, axis=1) |
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| 89 | bounds_lat_grid_U [ :, :, 3] = gphiv [:,:] |
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| 90 | bounds_lat_grid_U [ :, :, 2] = np.roll ( gphiv [:,:], 1, axis=1) |
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| 91 | |
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| 92 | bounds_lon_grid_U = cdms2.createVariable ( bounds_lon_grid_U, axes = ( yy, xx, nvertex ), id='bounds_lon_grid_U' ) |
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| 93 | bounds_lat_grid_U = cdms2.createVariable ( bounds_lat_grid_U, axes = ( yy, xx, nvertex ), id='bounds_lon_grid_U' ) |
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| 94 | |
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| 95 | print 'Calcul bounds_*_V' |
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| 96 | bounds_lon_grid_V = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 97 | bounds_lat_grid_V = np.zeros ( (ny, nx, 4), dtype=np.float32 ) |
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| 98 | |
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| 99 | bounds_lon_grid_V [ :, :, 0] = np.roll (glamu [:,:], 1, axis=1) # CSHIFT (glamu(:,:), -1, dim = 1 ) |
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| 100 | bounds_lon_grid_V [ :, :, 1] = glamu [:,:] |
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| 101 | bounds_lon_grid_V [ :, :, 3] = np.roll (np.roll (glamu [:,:], 1, axis=0), 1, axis=1) # EOSHIFT (CSHIFT (glamu(:,:), -1, dim = 1 ), 1, dim = 2) |
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| 102 | bounds_lon_grid_V [ :, :, 2] = np.roll (glamu [:,:], 1, axis=0) # EOSHIFT (glamu(:,:), 1, dim = 2 ) |
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| 103 | |
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| 104 | bounds_lat_grid_V [ :, :, 0] = np.roll (gphiu [:,:], 1, axis=1) |
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| 105 | bounds_lat_grid_V [ :, :, 1] = gphiu [:,:] |
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| 106 | bounds_lat_grid_V [ :, :, 3] = np.roll (np.roll (glamu [:,:], 1, axis=0), 1, axis=1) |
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| 107 | bounds_lat_grid_V [ :, :, 2] = np.roll (gphiu [:,:], 1, axis=0) |
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| 108 | |
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| 109 | bounds_lon_grid_V = cdms2.createVariable ( bounds_lon_grid_V, axes = ( yy, xx, nvertex ), id='bounds_lon_grid_V' ) |
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| 110 | bounds_lat_grid_V = cdms2.createVariable ( bounds_lat_grid_V, axes = ( yy, xx, nvertex ), id='bounds_lat_grid_V' ) |
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| 111 | |
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| 112 | print 'Calcul bounds_*_F' |
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| 113 | bounds_lon_grid_F = np.zeros((ny, nx, 4), dtype=np.float32) |
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| 114 | bounds_lat_grid_F = np.zeros((ny, nx, 4), dtype=np.float32) |
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| 115 | |
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| 116 | bounds_lon_grid_F [ :, :, 0] = glamt [:,:] |
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| 117 | bounds_lon_grid_F [ :, :, 1] = np.roll (glamt [:,:], 1, axis=1) # CSHIFT (glamt(:,:), 1, dim = 1 ) |
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| 118 | bounds_lon_grid_F [ :, :, 3] = np.roll (glamt [:,:], 1, axis=0) # EOSHIFT (glamt(:,:), 1, dim = 2 ) |
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| 119 | bounds_lon_grid_F [ :, :, 2] = np.roll (np.roll (glamt [:,:], 1, axis=0), 1, axis=1) # EOSHIFT (CSHIFT (glamt(:,:), 1, dim = 1), 1, dim = 2) |
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| 120 | |
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| 121 | bounds_lat_grid_F [ :, :, 0] = gphit [:,:] |
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| 122 | bounds_lat_grid_F [ :, :, 1] = np.roll (gphit [:,:], 1, axis=1) # CSHIFT (glamt(:,:), 1, dim = 1 ) |
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| 123 | bounds_lat_grid_F [ :, :, 3] = np.roll (gphit [:,:], 1, axis=0) # EOSHIFT (glamt(:,:), 1, dim = 2 ) |
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| 124 | bounds_lat_grid_F [ :, :, 2] = np.roll (np.roll (gphit [:,:], 1, axis=0), 1, axis=1) # EOSHIFT (CSHIFT (glamt(:,:), 1, dim = 1), 1, dim = 2) |
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| 125 | |
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| 126 | bounds_lon_grid_F = cdms2.createVariable ( bounds_lon_grid_F, axes = ( yy, xx, nvertex ), id='bounds_lon_grid_F' ) |
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| 127 | bounds_lat_grid_F = cdms2.createVariable ( bounds_lat_grid_F, axes = ( yy, xx, nvertex ), id='bounds_lat_grid_F' ) |
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| 128 | |
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| 129 | print 'Trucage au sud' |
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| 130 | |
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| 131 | #bounds_lat_grid_T [ 0, :, 0:1] = -90.0 |
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| 132 | #bounds_lat_grid_U [ 0, :, 0:1] = -90.0 |
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| 133 | #bounds_lat_grid_V [ 0, :, 0:1] = -90.0 |
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| 134 | #bounds_lat_grid_F [ 0, :, 0:1] = -90.0 |
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| 135 | |
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| 136 | #bounds_lon_grid_T [ 0, :, 0:1] = bounds_lon_grid_T [ 0, :, 2:3 ] |
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| 137 | #bounds_lon_grid_U [ 0, :, 0:1] = bounds_lon_grid_U [ 0, :, 2:3 ] |
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| 138 | #bounds_lon_grid_V [ 0, :, 0:1] = bounds_lon_grid_V [ 0, :, 2:3 ] |
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| 139 | #bounds_lon_grid_F [ 0, :, 0:1] = bounds_lon_grid_F [ 0, :, 2:3 ] |
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| 140 | |
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| 141 | print 'lbc' |
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| 142 | for nn in range (4) : |
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| 143 | print 'nn : ', nn |
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| 144 | bounds_lon_grid_T [:,:,nn] = nemo.lbc (bounds_lon_grid_T [:,:,nn], npolj=6, cd_type='T', psgn=1.0) |
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| 145 | bounds_lat_grid_T [:,:,nn] = nemo.lbc (bounds_lat_grid_T [:,:,nn], npolj=6, cd_type='T', psgn=1.0) |
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| 146 | bounds_lon_grid_U [:,:,nn] = nemo.lbc (bounds_lon_grid_U [:,:,nn], npolj=6, cd_type='U', psgn=1.0) |
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| 147 | bounds_lat_grid_U [:,:,nn] = nemo.lbc (bounds_lat_grid_U [:,:,nn], npolj=6, cd_type='U', psgn=1.0) |
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| 148 | bounds_lon_grid_V [:,:,nn] = nemo.lbc (bounds_lon_grid_V [:,:,nn], npolj=6, cd_type='V', psgn=1.0) |
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| 149 | bounds_lat_grid_V [:,:,nn] = nemo.lbc (bounds_lat_grid_V [:,:,nn], npolj=6, cd_type='V', psgn=1.0) |
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| 150 | bounds_lon_grid_F [:,:,nn] = nemo.lbc (bounds_lon_grid_F [:,:,nn], npolj=6, cd_type='F', psgn=1.0) |
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| 151 | bounds_lat_grid_F [:,:,nn] = nemo.lbc (bounds_lat_grid_F [:,:,nn], npolj=6, cd_type='F', psgn=1.0) |
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| 152 | |
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| 153 | bounds_lon_grid_T[:,:,nn] = clo_lon ( bounds_lon_grid_T[:,:,nn], lon_ref=glamt ) |
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| 154 | bounds_lon_grid_U[:,:,nn] = clo_lon ( bounds_lon_grid_U[:,:,nn], lon_ref=glamu ) |
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| 155 | bounds_lon_grid_V[:,:,nn] = clo_lon ( bounds_lon_grid_V[:,:,nn], lon_ref=glamv ) |
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| 156 | bounds_lon_grid_F[:,:,nn] = clo_lon ( bounds_lon_grid_F[:,:,nn], lon_ref=glamf ) |
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| 157 | |
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| 158 | |
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| 159 | f_grid.write ( bounds_lon_grid_T ) |
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| 160 | f_grid.write ( bounds_lat_grid_T ) |
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| 161 | f_grid.write ( bounds_lon_grid_U ) |
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| 162 | f_grid.write ( bounds_lat_grid_U ) |
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| 163 | f_grid.write ( bounds_lon_grid_V ) |
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| 164 | f_grid.write ( bounds_lat_grid_V ) |
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| 165 | f_grid.write ( bounds_lon_grid_F ) |
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| 166 | f_grid.write ( bounds_lat_grid_F ) |
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