Detailed instructions for compiling WRF are found in the README file
    located in the ../../WRFV1 directory. Once you have successfully compiled
    WRF, to run the arctic front test case, first edit the namelist file 
    namelist_af.input located in the current directory to make any desired 
    changes from the mcs control simulation discussed at 
    http://www.mmm.ucar.edu/wrf/WG7/cases/front.html
 
    It is recommended that you limit changes to those involving choices
    of physical parameterizations (e.g., mp_physics, bl_pbl_physics, 
    cu_physics) found in the record &namelist_04. The user may wish to change 
    the duration of the simulation in &namelist_05, which is currently set    
    to the maximum amount of time for which necessary input data is provided, 
    or the frequency of outputs in &namelist_02 (time_step_count_output, 
    frames_per_outfile). However, here the user needs to be aware that 
    changes to one namelist variable may necessitate compensatory changes to 
    other namelist variables. The user should NOT change grid dimension 
    variables (e.g., e_we, e_sn, e_vert in &namelist_02; dx, dy, ztop in 
    &namelist_03) since these variables are already set for the input data 
    files (named real_input_em.d01.yyyy-mm-dd_hh:mm:ss). 
 
    Once namelist_af.input has been edited, the file must be saved or renamed
    to namelist.input in order to run the arctic front simulation. To run WRF,
    first type real.exe to generate the initial and boundary condition files, 
    wrfinput and wrfbdy. After these files have been generated, type wrf.exe 
    to run the model. In a successful simulation, the current (default) setup 
    specified in namelist_af.input produces an output file (wrfout_01_000000) 
    that is approximately 685 megabytes and contains model output data at 6 
    hour intervals (t = 0, 6, 12, 18, 24, 30, 36, 42, and 48 h).

    Some of the plots from the control simulation displayed at 
    http://www.mmm.ucar.edu/wrf/WG7/cases/front.html were produced using the 
    RIP (Read, Interpolate, and Plot) software package available for the 
    Pennsylvania State University/NCAR Mesoscale Model Version 3 (MM5). For 
    users familar with RIP, a file (af_theta_winds.in) has been provided 
    to create similar plots using the RIP executable (rip). WRF users of RIP 
    are advised that a special version of the RIP preprocessing program 
    (ripdp4wrf) needs to be successfully executed on the model output data 
    (wrfout_01_000000) first. The fortran program ripdp4wrf.F, along with 
    instructions for compiling and running, can be downloaded from 
    ?http://www.mmm.ucar.edu/wrf/WG7/cases? After ripdp4wrf has been 
    successfully executed, WRF users may use the RIP executable (rip) along 
    with the input file af_theta_winds.in to produce plots. The RIP software 
    and instructions (RIP.TAR.gz) for compiling and executing rip may be 
    obtained via anonymous ftp to ftp.ucar.edu and cd'ing to the directory 
    /mesouser/MM5V3. However, for our application, rip is run on output from 
    ripdp4wf (which is the analog of output from ripdp for MM5 model data).