[ncl-talk] read namelist file in NCL

[Zhifeng Yang]

Awesome! very good exploration. I appreciate your effort. Thank you very
much.

On Wed, Sep 20, 2017 at 7:50 PM, Dennis Shea <shea at ucar.edu> wrote:

> Creating a function that reads and evaluate  a f77 or (more complicated)
> f90 namelist would require significant effort. For example, there cane be
> multiple "groups"; f90 "derived types" (I think), etc
>
> I took a crack at reading the provided namelist using keyword==>value
> approach. It is all about book-keeping! For example, the trailing "," must
> be addressed.
>
> I have only checked it out with the provided namelist. You can modify to
> fit your needs. Use print to check your results.
>
> ---
> %> ncl tst.read_namelist.ncl
>
> =======
>
> (0)    val_1=5
> (0)
> (0)    val_2=True
> (1)    val_2=True
> (2)    val_2=True
> (0)
> (0)    val_3=wrfout/wrfout_d<domain>_<date>
> (0)
> (0)    val_4=2015
> (1)    val_4=2001
> (2)    val_4=2001
>
>
>
>
> On Wed, Sep 20, 2017 at 9:45 AM, Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> Hi,
>>
>> I am unaware of an NCL function that directly reads the namelist.
>> However, you might look at this example:
>>
>> http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Exa
>> mples/EXPERIMENTAL/wrf_show_wps_som_namelist.htm
>>
>> It uses system calls to "grep" through a namelist file to pull out fields
>> that are of interest.
>>
>> Hope that helps...
>> Rick
>>
>> On Wed, Sep 20, 2017 at 8:54 AM, Zhifeng Yang <yangzf01 at gmail.com> wrote:
>>
>>> Hi
>>>
>>> Is there any methods to read a namelist file directly? Similar to
>>> FORTRAN. Here is an example of namelist file from WRF
>>>
>>> &time_control
>>>  run_days                            = 5,
>>>  run_hours                           = 0,
>>>  run_minutes                         = 0,
>>>  run_seconds                         = 0,
>>>  start_year                          = 2015, 2001, 2001,
>>>  start_month                         = 06,   06,   06,
>>>  start_day                           = 19,   11,   11,
>>>  start_hour                          = 00,   12,   12,
>>>  start_minute                        = 00,   00,   00,
>>>  start_second                        = 00,   00,   00,
>>>  end_year                            = 2015, 2001, 2001,
>>>  end_month                           = 06,   06,   06,
>>>  end_day                             = 24,   12,   12,
>>>  end_hour                            = 00,   12,   12,
>>>  end_minute                          = 00,   00,   00,
>>>  end_second                          = 00,   00,   00,
>>>  interval_seconds                    = 600
>>>  input_from_file                     = .true.,.true.,.true.,
>>>  history_interval                    = 10,   60,   60,
>>>  frames_per_outfile                  = 1,    1,    1,
>>>  restart                             = .false.,
>>>  restart_interval                    = 5000,
>>>  io_form_history                     = 2
>>>  io_form_restart                     = 2
>>>  io_form_input                       = 2
>>>  io_form_boundary                    = 2
>>>  auxinput1_inname                    = "../../../WPS/wpsout_cus_4km/m
>>> et_em.d<domain>.<date>"
>>>  history_outname                     = "wrfout/wrfout_d<domain>_<date>"
>>>  debug_level                         = 0
>>>
>>> I want to read this file with variable names and values from NCL. Thank
>>> you
>>>
>>> Best,
>>> Zhifeng
>>>
>>>
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>>
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