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module histhori_regular_m |
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|
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implicit none |
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|
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contains |
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|
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SUBROUTINE histhori_regular(pfileid, pim, plon, pjm, plat, phname, phtitle, & |
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phid) |
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|
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! This subroutine is made to declare a new horizontale grid. |
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! It has to have the same number of points as |
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! the original Thus in this we routine we will only |
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! add two variable (longitude and latitude). |
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! Any variable in the file can thus point to this pair |
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! through an attribute. This routine is very usefull |
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! to allow staggered grids. |
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|
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! INPUT |
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|
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! pfileid: The id of the file to which the grid should be added |
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! pim: Size in the longitude direction |
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! plon: The longitudes |
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! pjm: Size in the latitude direction |
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! plat: The latitudes |
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! phname: The name of grid |
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! phtitle: The title of the grid |
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|
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! OUTPUT |
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|
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! phid: Id of the created grid |
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|
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! We assume that the grid is rectilinear. |
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|
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USE errioipsl, ONLY: histerr |
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USE histcom_var, ONLY: full_size, hax_name, nb_hax, ncdf_ids, slab_sz, & |
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xid, yid |
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USE netcdf, ONLY: nf90_float |
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use netcdf95, only: nf95_redef, nf95_def_var, nf95_enddef, nf95_put_att, & |
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nf95_put_var |
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|
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INTEGER, INTENT (IN):: pfileid, pim, pjm |
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REAL, INTENT (IN), DIMENSION (pim, pjm):: plon, plat |
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CHARACTER (len=*), INTENT (IN):: phname, phtitle |
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INTEGER, INTENT (OUT):: phid |
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|
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CHARACTER (len=25):: lon_name, lat_name |
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CHARACTER (len=80):: tmp_title, tmp_name |
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INTEGER:: ndim |
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INTEGER dims(2) |
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INTEGER:: nlonid, nlatid |
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INTEGER:: par_szx, par_szy |
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INTEGER ncid |
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|
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!--------------------------------------------------------------------- |
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|
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! 1.0 Check that all fits in the buffers |
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|
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IF ((pim/=full_size(pfileid, 1)) .OR. (pjm/=full_size(pfileid, 2))) THEN |
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CALL histerr(3, 'histhori', & |
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'The new horizontal grid does not have the same size', & |
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'as the one provided to histbeg. This is not yet ', & |
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'possible in the hist package.') |
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END IF |
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|
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! 1.1 Create all the variables needed |
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|
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ncid = ncdf_ids(pfileid) |
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|
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ndim = 2 |
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dims(1:2) = (/ xid(pfileid), yid(pfileid) /) |
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|
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tmp_name = phname |
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IF (nb_hax(pfileid)==0) THEN |
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lon_name = 'lon' |
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lat_name = 'lat' |
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ELSE |
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lon_name = 'lon_' // trim(tmp_name) |
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lat_name = 'lat_' // trim(tmp_name) |
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END IF |
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|
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! 1.2 Save the informations |
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|
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phid = nb_hax(pfileid) + 1 |
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nb_hax(pfileid) = phid |
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|
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hax_name(pfileid, phid, 1:2) = (/ lon_name, lat_name/) |
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tmp_title = phtitle |
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|
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! 2.0 Longitude |
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|
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ndim = 1 |
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dims(1:1) = (/ xid(pfileid) /) |
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|
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call nf95_def_var(ncid, lon_name, nf90_float, dims(1:ndim), nlonid) |
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call nf95_put_att(ncid, nlonid, 'units', 'degrees_east') |
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call nf95_put_att(ncid, nlonid, 'valid_min', real(minval(plon))) |
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call nf95_put_att(ncid, nlonid, 'valid_max', real(maxval(plon))) |
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call nf95_put_att(ncid, nlonid, 'long_name', 'Longitude') |
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call nf95_put_att(ncid, nlonid, 'nav_model', trim(tmp_title)) |
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|
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! 3.0 Latitude |
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|
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ndim = 1 |
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dims(1:1) = (/ yid(pfileid) /) |
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|
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call nf95_def_var(ncid, lat_name, nf90_float, dims(1:ndim), nlatid) |
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call nf95_put_att(ncid, nlatid, 'units', 'degrees_north') |
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call nf95_put_att(ncid, nlatid, 'valid_min', real(minval(plat))) |
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call nf95_put_att(ncid, nlatid, 'valid_max', real(maxval(plat))) |
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call nf95_put_att(ncid, nlatid, 'long_name', 'Latitude') |
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call nf95_put_att(ncid, nlatid, 'nav_model', trim(tmp_title)) |
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|
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call nf95_enddef(ncid) |
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|
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! 4.0 storing the geographical coordinates |
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|
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par_szx = slab_sz(pfileid, 1) |
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par_szy = slab_sz(pfileid, 2) |
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|
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! Transfer the longitude |
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|
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call nf95_put_var(ncid, nlonid, plon(1:par_szx, 1)) |
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|
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! Transfer the latitude |
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|
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call nf95_put_var(ncid, nlatid, plat(1, 1:par_szy)) |
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|
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call nf95_redef(ncid) |
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|
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END SUBROUTINE histhori_regular |
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|
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end module histhori_regular_m |
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