Project

General

Profile

Forums » Support »

Problem converting ctl file to netcdf via import_binary: missing variables

Added by Lyndon Mark Olaguera about 4 years ago

Dear CDO experts,

Although I am not encountering an error when converting a GrADS ctl file to netcdf, there are some missing variables in the output netcdf file.

I uploaded the files here:

(ctl file) https://www.dropbox.com/s/v69krzs6bryajxb/pres_G3D_Thompson_ACM2_120s_usgs_do1_janHRF.ctl?dl=0

(dat file) https://www.dropbox.com/s/dntcjkif64nkezr/pres_G3D_Thompson_ACM2_120s_usgs_do1_janHRF.dat?dl=0

I use the following commands:

cdo -f nc import_binary ifile ofile

Another problem when I ncdump the output file, there are three levels? See below the dimension of the output netcdf file.

netcdf test {
dimensions:
    time = UNLIMITED ; // (25 currently)
    lon = 99 ;
    lat = 99 ;
    lev = 1 ;
    lev_2 = 20 ;
    lev_3 = 4 ;

I'll appreciate any help on this.

Sincerely,
Lyndz


Replies (2)

RE: Problem converting ctl file to netcdf via import_binary: missing variables - Added by Karin Meier-Fleischer about 4 years ago

Hi Lyndz,

the data descriptor file is not correct. If the variables are not on a pre-projected grid the units entry
has to be 99. Variables not depending on levels has to have the level 0 not 1. See attached ctl file.
You will get two level variables lev and lev_2 because some variables are depending on 20 leveles and
other only on 4 levels.

See also: http://cola.gmu.edu/grads/gadoc/descriptorfile.html#VARS

-Karin

pres_G3D_Thompson_ACM2_120s_usgs_do1_janHRF.ctl (16.2 KB) pres_G3D_Thompson_ACM2_120s_usgs_do1_janHRF.ctl
    (1-2/2)