[Wrf-users] Manipulating WRF namelists with ruby

[Saji Hameed]

Dear All,

Just want to let you know of my simple ruby library to manipulate namelists
for WRF or any fortran namelists at

  https://github.com/sajinh/fortran-namelist

Questions/bugs to saji at u-aizu.ac.jp

saji
---
How to use: Commented explanations can be found
  in the above website

require './lib/nml'

nml_file = "./namelists/namelist.wps.all_options"
# Read in and manipulate a fortran namelist
nml = NML_Reader.read(nml_file)

share=nml[:share].keep :wrf_core,
          :max_dom,
          :start_date,
          :end_date,
          :interval_seconds,
          :io_form_geogrid

share[:start_date] = '2012-01-01-00-00'

geogrid=nml[:geogrid]
geogrid.del :s_we, :s_sn, :ref_x, :ref_y

ungrib=nml[:ungrib]
metgrid=nml[:metgrid].del :process_only_bdy,
                          :constants_name,
                          :opt_output_from_metgrid_path

#  Create namelist groups
nshare = NML_Group.create(:share)
nshare << share << {:a => 1}
ngrid = NML_Group.create(:geogrid)
ngrid << geogrid
ungrb = NML_Group.create(:ungrib)
ungrb << nml[:ungrib]
nmet = NML_Group.create(:metgrid)
nmet << metgrid

outfil = File.new("namelist.wps.asia","w")

# Concat namelist groups to create a new namelist
NML_Writer << nshare << ngrid << ungrb << nmet

# Flush out namelist to outfil
NML_Writer >> outfil
outfil.close

Enjoy!

Copyright Saji Hameed (2012)  saji.uaizu at gmail.com
-- 

Saji N Hameed,
ARC-ENV, Center for Advanced Information Science and Technology,
University of Aizu, Tsuruga, Ikki-machi,
Aizuwakamatsu-shi, Fukushima 965-8580,
Japan

Tel: +81242 37-2736
Fax:+81242 37-2760
 email: saji at u-aizu.ac.jp
 url: http://www.u-aizu.ac.jp
 bib: http://www.researcherid.com/rid/B-9188-2009
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