| [524] | 1 | ! |
|---|
| [2429] | 2 | ! $Id: atm2geo.F90 3605 2019-11-21 15:43:45Z abarral $ |
|---|
| [524] | 3 | ! |
|---|
| [1126] | 4 | SUBROUTINE atm2geo ( im, jm, pte, ptn, plon, plat, pxx, pyy, pzz ) |
|---|
| 5 | USE dimphy |
|---|
| 6 | USE mod_phys_lmdz_para |
|---|
| [3605] | 7 | USE mod_grid_phy_lmdz, only: grid_type, unstructured, regular_lonlat |
|---|
| [1126] | 8 | IMPLICIT NONE |
|---|
| 9 | INCLUDE 'YOMCST.h' |
|---|
| [3605] | 10 | |
|---|
| 11 | CHARACTER (len = 6) :: clmodnam |
|---|
| 12 | CHARACTER (len = 20) :: modname = 'atm2geo' |
|---|
| 13 | CHARACTER (len = 80) :: abort_message |
|---|
| 14 | |
|---|
| [1126] | 15 | ! |
|---|
| 16 | ! Change wind local atmospheric coordinates to geocentric |
|---|
| 17 | ! |
|---|
| [3605] | 18 | ! Geocentric : |
|---|
| 19 | ! axe x is eastward : crosses (0 N, 0 E) point. |
|---|
| 20 | ! axe y crosses (0 N, 90 E) point. |
|---|
| 21 | ! axe z is 'up' : crosses north pole |
|---|
| [1126] | 22 | INTEGER, INTENT (in) :: im, jm |
|---|
| [3605] | 23 | REAL, DIMENSION (im,jm), INTENT (in) :: pte ! Eastward vector component |
|---|
| 24 | REAL, DIMENSION (im,jm), INTENT (in) :: ptn ! Northward vector component |
|---|
| [1126] | 25 | REAL, DIMENSION (im,jm), INTENT (in) :: plon, plat |
|---|
| [3605] | 26 | REAL, DIMENSION (im,jm), INTENT(out) :: pxx, pyy, pzz ! Component in the geocentric referential |
|---|
| 27 | REAL :: rad, reps |
|---|
| [776] | 28 | |
|---|
| [1126] | 29 | rad = rpi / 180.0E0 |
|---|
| [3605] | 30 | reps = 1.0e-5 |
|---|
| [1126] | 31 | |
|---|
| 32 | pxx(:,:) = & |
|---|
| 33 | - pte(:,:) * SIN(rad * plon(:,:)) & |
|---|
| 34 | - ptn(:,:) * SIN(rad * plat(:,:)) * COS(rad * plon(:,:)) |
|---|
| 35 | |
|---|
| 36 | pyy(:,:) = & |
|---|
| 37 | + pte(:,:) * COS(rad * plon(:,:)) & |
|---|
| 38 | - ptn(:,:) * SIN(rad * plat(:,:)) * SIN(rad * plon(:,:)) |
|---|
| 39 | |
|---|
| 40 | pzz(:,:) = & |
|---|
| 41 | + ptn(:,:) * COS(rad * plat (:,:)) |
|---|
| 42 | |
|---|
| [3605] | 43 | IF (grid_type==regular_lonlat) THEN |
|---|
| 44 | ! Value at North Pole |
|---|
| 45 | IF (is_north_pole_dyn) THEN |
|---|
| 46 | pxx(:, 1) = - pte (1, 1) |
|---|
| 47 | pyy(:, 1) = - ptn (1, 1) |
|---|
| 48 | pzz(:, 1) = pzz(1,1) ! => 0 |
|---|
| 49 | ENDIF |
|---|
| [1126] | 50 | |
|---|
| [3605] | 51 | ! Value at South Pole |
|---|
| 52 | IF (is_south_pole_dyn) THEN |
|---|
| 53 | pxx(:,jm) = pxx(1,jm) |
|---|
| 54 | pyy(:,jm) = pyy(1,jm) |
|---|
| 55 | pzz(:,jm) = pzz(1,jm) ! => 0 |
|---|
| 56 | ENDIF |
|---|
| 57 | |
|---|
| 58 | ELSE IF (grid_type==unstructured) THEN |
|---|
| 59 | ! Pole nord pour Dynamico |
|---|
| 60 | WHERE ( plat(:,:) >= 90.0d+0-reps ) |
|---|
| 61 | pxx (:,:) = -ptn (:,:) |
|---|
| 62 | pyy (:,:) = pte (:,:) |
|---|
| 63 | pzz (:,:) = 0.0e0 |
|---|
| 64 | END WHERE |
|---|
| 65 | |
|---|
| 66 | ELSE |
|---|
| 67 | abort_message='Problem: unknown grid type' |
|---|
| 68 | CALL abort_physic(modname,abort_message,1) |
|---|
| 69 | END IF |
|---|
| 70 | |
|---|
| [1126] | 71 | |
|---|
| 72 | END SUBROUTINE atm2geo |
|---|
