which .f90 file is to read netcdf file

[liyongkang]

I am a new for CLM and CESM. Now I want to read a new netcdf file(.nc) to memery to involve in CLM compute. So I want to know which .f90 file is to do it. Thanks!
It seems that the ncdio_pio.f90 file is to write the .nc file, but I want to read .nc file.

 

[oleson]

There are several examples of reading netcdf files in the CLM5 code. Look at UrbanParamsType.F90 for example.
There are a couple of "use ncdio_pio" statements that make available several ncdio_pio functions:

use ncdio_pio , only : file_desc_t, ncd_io, ncd_inqvdlen, ncd_inqfdims
use ncdio_pio , only : ncd_pio_openfile, ncd_pio_closefile, ncd_inqdid, ncd_inqdlen.

The file is opened using:

call ncd_pio_openfile (ncid, locfn, 0)

Variables are read in from the file using the "flag='read'", e.g.,

call ncd_io(ncid=ncid, varname='CANYON_HWR', flag='read', data=urbinp%canyon_hwr,&
dim1name=grlnd, readvar=readvar)

Then the file is closed using:

call ncd_pio_closefile(ncid)

 

[liyongkang]

There are several examples of reading netcdf files in the CLM5 code. Look at UrbanParamsType.F90 for example.
There are a couple of "use ncdio_pio" statements that make available several ncdio_pio functions:

use ncdio_pio , only : file_desc_t, ncd_io, ncd_inqvdlen, ncd_inqfdims
use ncdio_pio , only : ncd_pio_openfile, ncd_pio_closefile, ncd_inqdid, ncd_inqdlen.

The file is opened using:

call ncd_pio_openfile (ncid, locfn, 0)

Variables are read in from the file using the "flag='read'", e.g.,

call ncd_io(ncid=ncid, varname='CANYON_HWR', flag='read', data=urbinp%canyon_hwr,&
dim1name=grlnd, readvar=readvar)

Then the file is closed using:

call ncd_pio_closefile(ncid)

Thanks a lot! Now I achieve the goal by " use necdf ",but It's running a little slow. Then I would try the way that You suggested. Thanks agin, I a new about the cesm.