Namelist variable "prescribed_ozone_filelist"

[Li1108]

I want to run CESM from 1979 to 2020, but the default ozone input data (ozone_1.9x2.5_L26_1850-2005_c091112.nc) stops at 2005. I want to run the model using the scenario RCP8.5 after 2005, so I put another data (ozone_rcp85_v1_1.9x2.5_L26_1995-2105_c100202.nc) in the file "ozone_filelist.txt" and specify the variable "prescribed_aero_filelist":
prescribed_ozone_filelist='ozone_filelist.txt'
So that the model can read the ozone data after 2005 automatically from the file ozone_rcp85_v1_1.9x2.5_L26_1995-2105_c100202.nc. However, it seems that the model failed to do this. I checked the cesm.log and it gives the error message:
(shr_sys_abort) ERROR: not able to increment file name from filenames_list file: ozone_filelist.txt
I have attached the ozone_filelist.txt. Can anyone help me look into this?

 

[peverley]

Hi!

Have you set the prescribed_ozone_datapath variable?

This is the directory that contains the files listed in prescribed_ozone_filelist (ozone_1.9x2.5_L26_1850-2005_c091112.nc and ozone_rcp85_v1_1.9x2.5_L26_1995-2105_c100202.nc) and also ideally the prescribed_ozone_filelist file (ozone_filelist.txt) itself.

For example, if I had all of three files in the /home/test/ozone directory your user_nl_cam could look like:

prescribed_ozone_datapath = /home/test/ozone'
prescribed_ozone_filelist='ozone_filelist.txt'

ozone_filelist.txt and your files listed therein will be relative to the prescribed_ozone_datapath directory.

Let me know if that is confusing or doesn't help.
Courtney

 

[Li1108]

Hi!

Have you set the prescribed_ozone_datapath variable?

This is the directory that contains the files listed in prescribed_ozone_filelist (ozone_1.9x2.5_L26_1850-2005_c091112.nc and ozone_rcp85_v1_1.9x2.5_L26_1995-2105_c100202.nc) and also ideally the prescribed_ozone_filelist file (ozone_filelist.txt) itself.

For example, if I had all of three files in the /home/test/ozone directory your user_nl_cam could look like:

prescribed_ozone_datapath = /home/test/ozone'
prescribed_ozone_filelist='ozone_filelist.txt'

ozone_filelist.txt and your files listed therein will be relative to the prescribed_ozone_datapath directory.

Let me know if that is confusing or doesn't help.
Courtney

Hi Courtney,

Thanks for your reply!

If I have three files, say ozone_1850-2005.nc, ozone_2006-2030.nc and ozone_2031-2050.nc and I need all these three files. Do I need to specify the prescribed_ozone_file as the first file and put the filenames of another two files in a file (say ozone_filelist.txt) and give it to prescribed_ozone_filelist? Or just only put the names of all these three files in a file and give it to prescribed_ozone_filelist and do not specify prescribed_ozone_file? I just get confused by the use of these two namelist variables. I am also confused by the use of other similar variables like prescribed_ghg_filelist and prescribed_ghg_file.

Best,
Li

 

[peverley]

Hi Li,

You should put the filenames of all of the files in a file (say ozone_filelist.txt) and then prescribed_ozone_filelist will point to that file. Does that help?

 

[Li1108]

Hi Li,

You should put the filenames of all of the files in a file (say ozone_filelist.txt) and then prescribed_ozone_filelist will point to that file. Does that help?

Ok. Thanks!