Can't create LBC conditions

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E

Enea2301

New member
Hi! I've been trying to create IC and LBC conditions for a regional mesh (it's a test, before I jump to something bigger) in MPAS-7.0

The problem is that init_atmosphere complains all the time that the time set in fg_interval isn't the same as the time set in the stream output.

Here are both codes:

Code: 
&nhyd_model
    config_init_case = 9
    config_start_time = '2020-11-21_00:00:00'
    config_stop_time = '2020-11-23_00:00:00'

/
&dimensions
    config_nfglevels = 34

/
&data_sources
    config_met_prefix = 'FILE'
    config_fg_interval = 10800

/
&decomposition
    config_block_decomp_file_prefix = 'Spain.graph.info.part.2'
/

Code: 
<streams>
<immutable_stream name="input"
                  type="input"
                  filename_template="2020-11-21_00.00.00_IC.nc"
                  input_interval="initial_only" />

<immutable_stream name="output"
                  type="output"
                  filename_template="lbc.$Y-$M-$D_$h.$m.$s.nc"
                  filename_interval="output_interval"
                  packages="lbcs"
                  output_interval="3:00:00" />

<immutable_stream name="surface"
                  type="output"
                  filename_template="x4.535554.sfc_update.nc"
                  filename_interval="none"
                  packages="sfc_update"
                  output_interval="3:00:00" />

</streams>
 
The LBCs are written by a stream named "lbc", which I don't see in your streams.init_atmosphere file. You can find an example of this stream in the streams.init_atmosphere file that should have been created in the "default_inputs" sub-directory of the main MPAS-Model directory after you compiled the init_atmosphere core. The output interval for the "lbc" stream must match the value of config_fg_interval in your namelist. For example, the following should work in your case, with a config_fg_interval value of 10800 seconds:

Code: 
<immutable_stream name="lbc"
                  type="output"
                  filename_template="lbc.$Y-$M-$D_$h.$m.$s.nc"
                  filename_interval="output_interval"
                  packages="lbcs"
                  output_interval="3:00:00" />
 
I'll give it a try as soon as I can. Thank you for the answer! My fault hadn't noticed that simple thing, guess it's normal being on a totally new environment hehe

mgduda said:
The LBCs are written by a stream named "lbc", which I don't see in your streams.init_atmosphere file. You can find an example of this stream in the streams.init_atmosphere file that should have been created in the "default_inputs" sub-directory of the main MPAS-Model directory after you compiled the init_atmosphere core. The output interval for the "lbc" stream must match the value of config_fg_interval in your namelist. For example, the following should work in your case, with a config_fg_interval value of 10800 seconds:

Code: 
<immutable_stream name="lbc"
                  type="output"
                  filename_template="lbc.$Y-$M-$D_$h.$m.$s.nc"
                  filename_interval="output_interval"
                  packages="lbcs"
                  output_interval="3:00:00" />
Click to expand...
 
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