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module histvert_m |
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implicit none |
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contains |
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SUBROUTINE histvert(pfileid, pzaxname, pzaxtitle, pzaxunit, pzsize, & |
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pzvalues, pzaxid, pdirect) |
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! This subroutine defines a vertical axis and returns its id. It |
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! gives the user the possibility to define many different vertical |
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! axes. For each variable defined with histdef a vertical axis can |
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! be specified by its ID. |
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USE find_str_m, ONLY: find_str |
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USE strlowercase_m, ONLY: strlowercase |
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USE errioipsl, ONLY: histerr |
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USE histcom_var, ONLY: nb_zax, nb_zax_max, ncdf_ids, zax_ids, & |
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zax_name, zax_name_length, zax_size |
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USE netcdf, ONLY: nf90_def_dim, nf90_def_var, nf90_enddef, & |
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nf90_float, nf90_put_att, nf90_put_var, nf90_redef |
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INTEGER, INTENT(IN):: pfileid |
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! ID of the file the variable should be archived in |
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INTEGER, INTENT(IN):: pzsize ! size of the vertical axis |
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CHARACTER(len=*), INTENT(IN):: pzaxname ! name of the vertical axis |
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CHARACTER(len=*), INTENT(IN):: pzaxunit ! units of the vertical axis |
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CHARACTER(len=*), INTENT(IN):: pzaxtitle ! title of the vertical axis |
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REAL, INTENT(IN):: pzvalues(pzsize) ! coordinate values of the vetical axis |
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INTEGER, INTENT(OUT):: pzaxid ! ID of the axis (not the netCDF ID) |
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CHARACTER(len=*), INTENT(IN), OPTIONAL:: pdirect |
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! positive direction of the axis: up or down |
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! Local: |
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INTEGER:: pos, iv, nb, zdimid, zaxid_tmp |
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CHARACTER(len=20):: str20, tab_str20(nb_zax_max) |
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INTEGER:: tab_str20_length(nb_zax_max) |
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CHARACTER(len=70):: str70, str71, str72 |
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CHARACTER(len=80):: str80 |
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CHARACTER(len=20):: direction |
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INTEGER:: iret, leng, ncid |
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!--------------------------------------------------------------------- |
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! 1.0 Verifications: |
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! Do we have enough space for an extra axis ? |
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! Is the name already in use ? |
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! - Direction of axis. Can we get if from the user. |
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! If not we put unknown. |
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IF (present(pdirect)) THEN |
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direction = trim(pdirect) |
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CALL strlowercase(direction) |
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ELSE |
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direction = 'unknown' |
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END IF |
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! Check the consistency of the attribute |
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IF ((direction/='unknown') .AND. (direction/='up') .AND. & |
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(direction/='down')) THEN |
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direction = 'unknown' |
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str80 = 'The specified axis was: ' // trim(direction) |
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CALL histerr(2, 'histvert', & |
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'The specified direction for the vertical axis is not possible.', & |
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'it is replaced by: unknown', str80) |
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END IF |
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IF (nb_zax(pfileid)+1>nb_zax_max) THEN |
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CALL histerr(3, 'histvert', & |
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'Table of vertical axes too small. You should increase ', & |
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'nb_zax_max in M_HISTCOM.f90 in order to accomodate all ', & |
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'these variables ') |
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END IF |
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iv = nb_zax(pfileid) |
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IF (iv>1) THEN |
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str20 = pzaxname |
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nb = iv - 1 |
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tab_str20(1:nb) = zax_name(pfileid, 1:nb) |
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tab_str20_length(1:nb) = zax_name_length(pfileid, 1:nb) |
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CALL find_str(nb, tab_str20, tab_str20_length, str20, pos) |
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ELSE |
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pos = 0 |
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END IF |
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IF (pos>0) THEN |
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str70 = 'Vertical axis already exists' |
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WRITE(str71, '("Check variable ", a, " in file", I3)') str20, & |
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pfileid |
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str72 = 'Can also be a wrong file ID in another declaration' |
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CALL histerr(3, 'histvert', str70, str71, str72) |
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END IF |
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iv = nb_zax(pfileid) + 1 |
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! 2.0 Add the information to the file |
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ncid = ncdf_ids(pfileid) |
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leng = min(len_trim(pzaxname), 20) |
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iret = nf90_def_dim(ncid, pzaxname(1:leng), pzsize, zaxid_tmp) |
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iret = nf90_def_var(ncid, pzaxname(1:leng), nf90_float, zaxid_tmp, zdimid) |
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leng = min(len_trim(pzaxunit), 20) |
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iret = nf90_put_att(ncid, zdimid, 'units', pzaxunit(1:leng)) |
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iret = nf90_put_att(ncid, zdimid, 'positive', trim(direction)) |
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iret = nf90_put_att(ncid, zdimid, 'valid_min', real(minval( & |
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pzvalues(1:pzsize)))) |
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iret = nf90_put_att(ncid, zdimid, 'valid_max', real(maxval( & |
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pzvalues(1:pzsize)))) |
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leng = min(len_trim(pzaxname), 20) |
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iret = nf90_put_att(ncid, zdimid, 'title', pzaxname(1:leng)) |
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leng = min(len_trim(pzaxtitle), 80) |
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iret = nf90_put_att(ncid, zdimid, 'long_name', pzaxtitle(1:leng)) |
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iret = nf90_enddef(ncid) |
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iret = nf90_put_var(ncid, zdimid, pzvalues(1:pzsize)) |
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iret = nf90_redef(ncid) |
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! 3.0 add the information to the common |
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nb_zax(pfileid) = iv |
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zax_size(pfileid, iv) = pzsize |
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zax_name(pfileid, iv) = pzaxname |
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zax_name_length(pfileid, iv) = len_trim(pzaxname) |
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zax_ids(pfileid, iv) = zaxid_tmp |
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pzaxid = iv |
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END SUBROUTINE histvert |
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end module histvert_m |
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