| 1 | ! |
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| 2 | ! $Header: /home/cvsroot/LMDZ4/libf/phylmd/geo2atm.F90,v 1.1 2008-12-05 17:56:40 lsce Exp $ |
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| 3 | ! |
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| 4 | SUBROUTINE geo2atm(im, jm, px, py, pz, plon, plat, pu, pv, pr) |
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| 5 | USE dimphy |
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| 6 | USE mod_phys_lmdz_para |
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| 7 | USE mod_grid_phy_lmdz, only: grid_type, unstructured, regular_lonlat |
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| 8 | USE yomcst_mod_h |
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| 9 | IMPLICIT NONE |
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| 10 | |
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| 11 | CHARACTER (len = 6) :: clmodnam |
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| 12 | CHARACTER (len = 20) :: modname = 'geo2atm' |
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| 13 | CHARACTER (len = 80) :: abort_message |
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| 14 | |
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| 15 | ! Change wind coordinates from cartesian geocentric to local spherical |
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| 16 | ! NB! Fonctionne probablement uniquement en MPI seul (sans OpenMP) |
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| 17 | ! |
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| 18 | ! Geocentric : |
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| 19 | ! axe x is eastward : crosses (0N,90E) point. |
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| 20 | ! axe y crosses (0N,180E) point. |
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| 21 | ! axe z is 'up' : crosses north pole. |
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| 22 | ! |
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| 23 | ! NB! Aux poles, fonctionne probablement uniquement en MPI seul (sans OpenMP) |
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| 24 | |
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| 25 | INTEGER, INTENT (IN) :: im, jm |
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| 26 | REAL, DIMENSION (im,jm), INTENT(IN) :: px, py, pz |
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| 27 | REAL, DIMENSION (im,jm), INTENT(IN) :: plon, plat |
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| 28 | REAL, DIMENSION (im,jm), INTENT(OUT) :: pu, pv, pr |
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| 29 | |
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| 30 | REAL :: rad,reps |
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| 31 | |
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| 32 | |
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| 33 | rad = rpi / 180.0E0 |
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| 34 | reps = 1.0e-5 |
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| 35 | |
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| 36 | pu(:,:) = & |
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| 37 | - px(:,:) * SIN(rad * plon(:,:)) & |
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| 38 | + py(:,:) * COS(rad * plon(:,:)) |
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| 39 | |
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| 40 | pv(:,:) = & |
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| 41 | - px(:,:) * SIN(rad * plat(:,:)) * COS(rad * plon(:,:)) & |
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| 42 | - py(:,:) * SIN(rad * plat(:,:)) * SIN(rad * plon(:,:)) & |
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| 43 | + pz(:,:) * COS(rad * plat(:,:)) |
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| 44 | |
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| 45 | pr(:,:) = & |
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| 46 | + px(:,:) * COS(rad * plat(:,:)) * COS(rad * plon(:,:)) & |
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| 47 | + py(:,:) * COS(rad * plat(:,:)) * SIN(rad * plon(:,:)) & |
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| 48 | + pz(:,:) * SIN(rad * plat(:,:)) |
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| 49 | |
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| 50 | IF (grid_type==regular_lonlat) THEN |
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| 51 | ! Value at North Pole |
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| 52 | IF (is_north_pole_dyn) THEN |
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| 53 | pu(:, 1) = -px (1,1) |
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| 54 | pv(:, 1) = -py (1,1) |
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| 55 | pr(:, 1) = 0.0 |
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| 56 | ENDIF |
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| 57 | |
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| 58 | ! Value at South Pole |
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| 59 | IF (is_south_pole_dyn) THEN |
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| 60 | pu(:,jm) = -px (1,jm) |
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| 61 | pv(:,jm) = -py (1,jm) |
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| 62 | pr(:,jm) = 0.0 |
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| 63 | ENDIF |
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| 64 | |
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| 65 | ELSE IF (grid_type==unstructured) THEN |
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| 66 | ! Pole nord pour Dynamico |
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| 67 | WHERE ( plat(:,:) >= 90.0-reps ) |
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| 68 | pu(:,:) = py(:,:) |
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| 69 | pv(:,:) = -px(:,:) |
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| 70 | pr(:,:) = 0.0e0 |
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| 71 | END WHERE |
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| 72 | |
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| 73 | ELSE |
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| 74 | abort_message='Problem: unknown grid type' |
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| 75 | CALL abort_physic(modname,abort_message,1) |
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| 76 | END IF |
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| 77 | |
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| 78 | |
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| 79 | |
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| 80 | |
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| 81 | END SUBROUTINE geo2atm |
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