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MODULE histbeg_totreg_m |
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! From histcom.f90, version 2.1 2004/04/21 09:27:10 |
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! Some confusing vocabulary in this code ! |
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|
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! A REGULAR grid is a grid which is i, j indices |
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! and thus it is stored in a 2D matrix. |
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! This is opposed to an IRREGULAR grid which is only in a vector |
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! and where we do not know which neighbors we have. |
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! As a consequence we need the bounds for each grid-cell. |
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|
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! A RECTILINEAR grid is a special case of a regular grid |
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! in which all longitudes for i constant are equal |
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! and all latitudes for j constant. |
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! In other words we do not need the full 2D matrix |
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! to describe the grid, just two vectors. |
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|
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IMPLICIT NONE |
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|
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CONTAINS |
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SUBROUTINE histbeg_totreg(pfilename, plon_1d, plat_1d, par_orix, par_szx, & |
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par_oriy, par_szy, pitau0, pdate0, pdeltat, phoriid, pfileid) |
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|
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! The user provides "plon_1d" and "plat_1d" as vectors. Obviously |
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! this can only be used for very regular grids. |
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! This subroutine initializes a netcdf file and returns the ID. |
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! It will set up the geographical space on which the data will be |
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! stored and offers the possibility of seting a zoom. |
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! It also gets the global parameters into the I/O subsystem. |
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|
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! INPUT |
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|
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! pfilename: Name of the netcdf file to be created |
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! pim: Size of arrays in longitude direction |
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! plon_1d: Coordinates of points in longitude |
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! pjm: Size of arrays in latitude direction |
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! plat_1d: Coordinates of points in latitude |
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|
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! The next 4 arguments allow to define a horizontal zoom |
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! for this file. It is assumed that all variables to come |
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! have the same index space. This can not be assumed for |
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! the z axis and thus we define the zoom in histdef. |
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|
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! par_orix: Origin of the slab of data within the X axis (pim) |
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! par_szx: Size of the slab of data in X |
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! par_oriy: Origin of the slab of data within the Y axis (pjm) |
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! par_szy: Size of the slab of data in Y |
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|
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! pitau0: time step at which the history tape starts |
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! pdate0: The Julian date at which the itau was equal to 0 |
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! pdeltat: Time step in seconds. Time step of the counter itau |
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! used in histwrt for instance |
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|
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! OUTPUT |
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! phoriid: ID of the horizontal grid |
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! pfileid: ID of the netcdf file |
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|
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! We assume the grid is rectilinear. |
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|
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USE ioipslmpp, ONLY: ioipslmpp_file |
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USE errioipsl, ONLY: histerr |
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USE histcom_var, ONLY: assc_file, date0, deltat, full_size, itau0, & |
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lock_modname, model_name, nb_files, nb_files_max, nb_hax, nb_tax, & |
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nb_var, nb_zax, ncdf_ids, regular, slab_ori, slab_sz, xid, yid, zoom |
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use histhori_regular_m, only: histhori_regular |
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USE netcdf, ONLY: nf90_clobber, nf90_create, nf90_def_dim, & |
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nf90_global, nf90_put_att |
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|
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CHARACTER (len=*), INTENT (IN):: pfilename |
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REAL, DIMENSION (:), INTENT (IN):: plon_1d |
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REAL, DIMENSION (:), INTENT (IN):: plat_1d |
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INTEGER, INTENT (IN):: par_orix, par_szx, par_oriy, par_szy |
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INTEGER, INTENT (IN):: pitau0 |
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REAL, INTENT (IN):: pdate0, pdeltat |
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INTEGER, INTENT (OUT):: pfileid, phoriid |
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|
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! Variables local to the procedure: |
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REAL, DIMENSION (size(plon_1d), size(plat_1d)):: plon, plat |
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INTEGER:: pim, pjm |
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INTEGER:: ncid, iret |
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INTEGER:: lengf, lenga |
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CHARACTER (len=120):: file, tfile |
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|
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!--------------------------------------------------------------------- |
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|
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pim = size(plon_1d) |
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pjm = size(plat_1d) |
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plon = spread(plon_1d, 2, pjm) |
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plat = spread(plat_1d, 1, pim) |
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nb_files = nb_files + 1 |
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pfileid = nb_files |
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! 1.0 Transfering into the common for future use |
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itau0(pfileid) = pitau0 |
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date0(pfileid) = pdate0 |
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deltat(pfileid) = pdeltat |
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! 2.0 Initializes all variables for this file |
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IF (nb_files>nb_files_max) THEN |
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CALL histerr(3, 'histbeg', & |
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'Table of files too small. You should increase nb_files_max', & |
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'in M_HISTCOM.f90 in order to accomodate all these files', ' ') |
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END IF |
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|
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nb_var(pfileid) = 0 |
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nb_tax(pfileid) = 0 |
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nb_hax(pfileid) = 0 |
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nb_zax(pfileid) = 0 |
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|
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slab_ori(pfileid, 1:2) = (/ par_orix, par_oriy/) |
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slab_sz(pfileid, 1:2) = (/ par_szx, par_szy/) |
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|
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! 3.0 Opening netcdf file and defining dimensions |
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|
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tfile = pfilename |
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lengf = len_trim(tfile) |
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IF (tfile(lengf-2:lengf)/='.nc') THEN |
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file = tfile(1:lengf) // '.nc' |
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ELSE |
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file = tfile(1:lengf) |
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END IF |
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! Add PE number in file name on MPP |
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|
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CALL ioipslmpp_file(file) |
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! Keep track of the name of the files opened |
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lengf = len_trim(file) |
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lenga = len_trim(assc_file) |
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IF (nb_files==1) THEN |
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assc_file = file(1:lengf) |
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ELSE IF ((lenga+lengf)<500) THEN |
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assc_file = assc_file(1:lenga) // ' ' // file(1:lengf) |
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ELSE IF (((lenga+7)<500) .AND. (index(assc_file(1:lenga), & |
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'et.al.')<1)) THEN |
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assc_file = assc_file(1:lenga) // ' et.al.' |
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ELSE |
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CALL histerr(2, 'histbeg', & |
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'The file names do not fit into the associate_file attribute.', & |
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'Use shorter names if you wish to keep the information.', ' ') |
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END IF |
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|
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iret = nf90_create(file, nf90_clobber, ncid) |
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iret = nf90_def_dim(ncid, 'lon', par_szx, xid(nb_files)) |
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iret = nf90_def_dim(ncid, 'lat', par_szy, yid(nb_files)) |
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! 4.0 Declaring the geographical coordinates and other attributes |
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! 4.3 Global attributes |
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iret = nf90_put_att(ncid, nf90_global, 'Conventions', 'GDT 1.3') |
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iret = nf90_put_att(ncid, nf90_global, 'file_name', trim(file)) |
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iret = nf90_put_att(ncid, nf90_global, 'production', trim(model_name)) |
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lock_modname = .TRUE. |
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! 5.0 Saving some important information on this file in the common |
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ncdf_ids(pfileid) = ncid |
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full_size(pfileid, 1:2) = (/ pim, pjm/) |
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! 6.0 storing the geographical coordinates |
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IF ((pim/=par_szx) .OR. (pjm/=par_szy)) zoom(pfileid) = .TRUE. |
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regular(pfileid) = .TRUE. |
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CALL histhori_regular(pfileid, pim, plon, pjm, plat, ' ', 'Default grid', & |
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phoriid) |
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|
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END SUBROUTINE histbeg_totreg |
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|
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end MODULE histbeg_totreg_m |
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