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CICE/DART "NetCDF: Start+count exceeds dimension bound" error

Young-chan

Young-chan Noh
New Member
Now, I am preparing the data assimilation study using CICE (embedded in CESM) and DART package.
I successfully installed the CESM (2.0 version) and DART (10.2) packages with the appropriate setting.

To run the CICE/DART assimilation system, the atmospheric forcing database (an ensemble of atmospheric forcing files from a cam reanalysis, ds199.1) is downloaded and the sea-ice initial condition (f.e21.FHIST_BGC.f09_025.CAM6assim.011.cice_0001.r.2005-04-06-00000.nc) is obtained from the CESM restart files of "CAM6 Data Assimilation Research Testbed (DART) Reanalysis".

As this is the test run, three ensemble members are used and the detailed information on the model setup is presented in the attached files.

When I initiated the CICE/DART system, there is an unknown error in the CESM log file as follows.

It is just a small part of the CESM log and the full log file is found in the attached file.
====================================================================================
ICE0003 : pio_rearranger = 1
ICE0003 : pio_root = 1
ICE0003 : pio_iotype = 6
Reading setup_nml
Reading grid_nml
Reading tracer_nml
Reading thermo_nml
Reading dynamics_nml
Reading shortwave_nml
Reading ponds_nml
Reading forcing_nml
Reading setup_nml
Reading setup_nml
Reading grid_nml
Reading tracer_nml
Reading thermo_nml
Reading dynamics_nml
Reading shortwave_nml
Reading ponds_nml
Reading forcing_nml
Reading grid_nml
Reading tracer_nml
Reading thermo_nml
Reading dynamics_nml
Reading shortwave_nml
Reading ponds_nml
Reading forcing_nml
Reading zbgc_nml
Reading zbgc_nml
Reading zbgc_nml
NetCDF: Start+count exceeds dimension bound
pio_support::pio_die:: myrank= -1 : ERROR: pionfread_mod.F90.in:
204 : NetCDF: Start+count exceeds dimension bound

====================================================================================

As it is my first time handling the CICE with DART (but I have the experience to handle the CAM6+DART for the assimilation study), I don't know what problem happens now.

If you have any solution or advice, please let me know.

Many thanks,

Youngchan Noh
 

dbailey

CSEG and Liaisons
Staff member
The problem here is that you are likely using a restart that has the wrong dimensions for your CICE grid. What grid are you using for CICE (e.g. gx1, gx3, etc.) The F case restart you are using here is the 1-degree CAM FV grid.
 
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