source: palm/trunk/UTIL/inifor/README @ 3364

# INIFOR - Mesoscale Interface for Initializing and Forcing PALM-4U (v1.3.0)

INIFOR provides the meteorological fields required to initialize and drive the
urban-climate model PALM-4U. The required meteorological fields are
interpolated from output data of the meso-scale model COSMO.


## COMPILATION

1. Customize ./Makefile and ./tests/Makefile (netCDF library location, compiler
   and parameters, use Makefile.ifort as a template if you want to use the Intel
   Fortran compiler)
2. Run `make`


## USAGE

1. Customize `./namelist` (number or grid points and spacings, end_time)
2. Run `current_version/trunk/SCRIPTS/inifor -path <scenario path> -date <YYYYMMDD>`


## AVAILABLE NAMELIST PARAMETERS

INIFOR mirrors a subset of the PALM-4U's Fortran namelists `inipar` and `d3par`
and supports the following parameters:


### inipar

    nx, ny, nz - number of PALM-4U grid points in x, y, and z direction
    dx, dy, dz(10) - PALM-4U grid spacings in x, y, and z direction [m]
    dz_stretch_level - height above which the grid will be stretched [m]
    dz_stretch_factor - factor by which the grid will be stretched
    dz_max - maximum vertical grid spacing [m]
    dz_stretch_level_start(9) - array of height levels above which the grid is
    to be stretched vertically [m]
    dz_stretch_level_end(9) - array of height levels until which the grid is to
    be stretched vertically [m]
    longitude, latitude - geographical coordinates of the PALM-4U origin [deg]


### d3par

    end_time - PALM-4U simulation time. INIFOR will produce hourly forcing data
        from the start date (see -d command-line option) to end_time seconds
        thereafter. [s]


### EXAMPLE NAMELIST FILE

    &inipar nx = 4679, ny = 3939, nz = 360
            dx = 10., dy = 10., dz = 10.
            dz_stretch_level = 2500.0, dz_stretch_factor = 1.08, dz_max = 100.0
            longitude = 13.082744, latitude = 52.325079
    /
    
    &d3par  end_time = 86400.0
    /


## AVAILABLE COMMAND-LINE PARAMETERS

    -d, --date, -date <date>:
        Start date of the simulation in the form YYYYMMDD of YYYYMMDDHH. If no
        hours (HH) are given, INIFOR assumes that the simulation starts at O UTC
        on that day. Default: 20130721
        
    -i, --init-mode, -mode <mode>:
        Set the PALM-4U initialization mode. INIFOR can provide initial conditions
        as either profiles or three-dimensional fields. The corresponding modes
        are 'profile' and 'volume'. Default: volume

    -l, --hhl-file, -hhl <netCDF file>:
        Location of the netCDF file containing the vertical COSMO-DE grid levels,
        specifically the heights of half levels (hhl, i.e. vertical cell faces).
        Default: <scenario path>/hhl.nc

    -n, --namelist <namelist file>:
        Location of the PALM-4U namelist file. INIFOR expects the file to contain
        two namelists, inipar and d3par, from which it will read grid parameters
        and the simulation time. Default: ./namelist

    -o, --output <output file>:
        Name of the INIFOR output file, i.e. the PALM-4U dynamic driver.
        Default: ./palm-4u-input.nc

    -p, --path, -path <scenario path>:
        Scenario path, i.e. the path of the meteorological input data. Default: ./

    -r, --surface-pressure, -p0 <pressure>:
        Surface pressure at z=0 in the PALM-4U domain [Pa].
        Default: 1e5

    -s, --soil-file, -soil <netCDF file>:
        Location of the netCDF file containing the COSMO-DE soil type map.
        Default: <scenario path>/soil.nc

    -t, --static-driver, -static <netCDF file>:
        Location of the netCDF file containing the static driver file for the case
        to be simulated with PALM-4U. Optional parameter. Default: None

    -u, --geostrophic-u, -ug <velocity>:
        Specifies the geostrophic wind in x direction [m/s]. Default: 0

    -v, --geostrophic-v, -vg <velocity>:
        Specifies the geostrophic wind in y direction [m/s]. Default: 0

    --version:
        Output version number and exit.

    -z, --elevation, -z0 <height>: Specifies the elevation of the PALM-4U domain
        above sea level [m]. Default: 35


## ADDITIONAL COMMAND-LINE OPTIONS

    --flow-prefix <prefix>:
        Set the file prefix of flow input files. Default: laf

    --radiation-prefix <prefix>:
        Set the file prefix of radiation input files. Default: laf

    --soil-prefix <prefix>:
        Set the file prefix of soil input files. Default: laf

    --soilmoisture-prefix <prefix>:
        Set the file prefix of soil moisture input files. Default: laf