| [1024] | 1 | SUBROUTINE relaxetat0(fichnom) |
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| 2 | |
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| 3 | use netcdf, only: nf90_get_var |
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| 4 | use comuforc_h |
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| 5 | use ioipsl_getincom |
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| 6 | |
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| 7 | IMPLICIT NONE |
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| 8 | |
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| 9 | !======================================================================= |
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| 10 | ! Author: A. Spiga |
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| 11 | ! Purpose: Read a simple relaxation field |
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| 12 | !======================================================================= |
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| 13 | |
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| 14 | #include "dimensions.h" |
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| 15 | #include "paramet.h" |
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| 16 | #include "netcdf.inc" |
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| 17 | #include "iniprint.h" |
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| 18 | |
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| 19 | ! INPUTS |
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| 20 | CHARACTER*(*) fichnom |
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| 21 | |
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| 22 | ! VARIABLES |
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| 23 | REAL ucov(iip1, jjp1,llm) |
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| [1345] | 24 | REAL press(llm) |
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| [1024] | 25 | INTEGER ierr, nid, nvarid |
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| 26 | INTEGER i,j,l,ij |
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| 27 | |
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| 28 | !! OPEN NETCDF FILE |
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| 29 | ierr = NF_OPEN (fichnom, NF_NOWRITE,nid) |
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| 30 | IF (ierr.NE.NF_NOERR) THEN |
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| 31 | write(lunout,*)'relaxetat0: Pb d''ouverture du fichier' |
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| 32 | write(lunout,*)' ierr = ', ierr |
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| 33 | CALL ABORT |
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| 34 | ENDIF |
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| 35 | |
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| 36 | !! ALLOCATE RELAXATION FIELD |
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| 37 | IF (.NOT.ALLOCATED(uforc)) ALLOCATE(uforc(ip1jmp1,llm)) |
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| 38 | |
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| 39 | !! READ RELAXATION FIELD |
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| 40 | ierr = NF_INQ_VARID (nid, "ucov", nvarid) |
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| 41 | IF (ierr .NE. NF_NOERR) THEN |
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| 42 | write(lunout,*)"dynetat0: Le champ <ucov> est absent" |
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| 43 | CALL abort |
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| 44 | ENDIF |
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| 45 | ierr = nf90_get_var(nid, nvarid, ucov) |
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| 46 | IF (ierr .NE. NF_NOERR) THEN |
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| 47 | write(lunout,*)"dynetat0: Lecture echouee pour <ucov>" |
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| 48 | CALL abort |
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| 49 | ENDIF |
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| 50 | |
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| 51 | !! TRANSFER TO SHARED VARIABLE IN comuforc_h MODULE |
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| 52 | !! TBD --> check the relaxation field's dimensions are OK! |
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| 53 | do l=1,llm |
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| 54 | do j=1,jjp1 |
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| 55 | do i=1,iip1 |
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| 56 | ij=(j-1)*iip1+i |
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| 57 | uforc(ij,l)=ucov(i,j,l) |
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| 58 | enddo |
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| 59 | enddo |
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| 60 | enddo |
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| 61 | |
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| 62 | !! READ THE RELAXATION RATE IN SETTINGS |
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| 63 | facwind = 1000. |
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| 64 | CALL getin('facwind',facwind) |
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| 65 | |
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| [1345] | 66 | !! CALCULATE ATTENUATION FACTOR WITH ALTITUDE |
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| 67 | ierr = NF_INQ_VARID (nid, "presnivs", nvarid) |
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| 68 | IF (ierr .NE. NF_NOERR) THEN |
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| 69 | write(lunout,*)"dynetat0: Le champ <presnivs> est absent" |
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| 70 | CALL abort |
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| 71 | ENDIF |
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| 72 | ierr = nf90_get_var(nid, nvarid, press) |
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| 73 | IF (ierr .NE. NF_NOERR) THEN |
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| 74 | write(lunout,*)"dynetat0: Lecture echouee pour <press>" |
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| 75 | CALL abort |
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| 76 | ENDIF |
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| 77 | phalf = 1.e5 !! at this pressure, attenua is 0.5 |
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| 78 | CALL getin('phalf',phalf) |
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| 79 | !! attenua goes from 1 at lowermost levels to 0 at uppermost levels |
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| 80 | IF (.NOT.ALLOCATED(attenua)) ALLOCATE(attenua(llm)) |
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| 81 | attenua = 0.5*(1.+tanh(log10(press/phalf))) |
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| 82 | |
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| [1024] | 83 | !! END |
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| 84 | ierr = NF_CLOSE(nid) |
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| 85 | RETURN |
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| 86 | END |
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