How to run GSI

How to run NDAS:
1. A list of fixed files:
  - berror_stats : background error covariance file
                  eg: nam_nmmstawt_na
                      nam_glb_berror.77
  - errtable :  observation error table file
                eg: nam_errtable.r3dv

2. Observation data control files:
  - convinfo: conventional obseration information file
              eg: global_convinfo.txt
  - satinfo : satellite channel information file
              eg: global_satinfo.txt
  - pcpinfo : precipitation rate observation information file
              eg: global_pcpinfo.txt
  - ozinfo: ozeon observation information file
            eg: global_ozinfo.txt

3. Bias correction file used by radiance analysis
  - satbias_angle: satellite scan angel dependent bias correction file
  - satbias_in : satellite variational bias correction coefficient file.
                 eg: ndas.t06z.satbias.tm03

4. radiance coefficient fix files used by CRTM.
  - EmisCoeff.bin: IR surface emissivity coefficient file
  - AerosolCoeff.bin : Aerosol coefficient
  - CloudCoeff.bin : Cloud scattering and emission coefficients
  -${satsen}.SpcCoeff.bin : Sensor spectral response characteristics
  - ${satsen}.TauCoeff.bin : Transmittance coefficients

5. Druing Data Denial Experiment (DDE)
  - convinfo is excluded by changin iuse flag.
        eg: global_convinfo.txt

  - Similarly only to specify the channels used by chaning the flag
    eg: global_satinfo.txt

6. command @ S4 to run GSI
  # Summit job
  $ ./qsub   cntrl_config   2012070918   gdas   efmn  
  $ ./qsub   cntrl_config   2012070918   gdas   fcst1  
  # Monitor job
  $ qstat -u kkumar       
  # List cntrl location
  $ ls -ltr /scratch1/kkumar/para/cntrl/  
  # Output
  /scratch1/kkummar/para/cntrl/cntrl2012070918gdasefmn.dayfile