WRF ARW User's Guide - MMM - UCAR

&grib2
MODEL
background_proc_id 255 Background generating process identifier,
typically defined by the originating center
to identify the background data that was
used in creating the data. This is octet 13
of Section 4 in the grib2 message
forecast_proc_id 255 Analysis or generating forecast process
identifier, typically defined by the
originating center to identify the forecast
process that was used to generate the data.
This is octet 14 of Section 4 in the grib2
message
production_status 255 Production status of processed data in the
grib2 message. See Code Table 1.3 of the
grib2 manual. This is octet 20 of Section 1
in the grib2 record
compression 40 The compression method to encode the
output grib2 message. Only 40 for
jpeg2000 or 41 for PNG are supported
&dfi_control digital filter option control (does not yet support nesting)
dfi_opt 3 which DFI option to use
0: no digital filter initialization
1: digital filter launch (DFL)
2: diabatic DFI (DDFI)
3: twice DFI (TDFI) (recommended)
dfi_nfilter 7 digital filter type: 0 – uniform; 1- Lanczos;
2 – Hamming; 3 – Blackman; 4 – Kaiser; 5
– Potter; 6 – Dolph window; 7 – Dolph
(recommended); 8 – recursive high-order
dfi_write_filtered_
input
.true. whether to write wrfinput file with filtered
model state before beginning forecast
dfi_write_dfi_history .false. whether to write wrfout files during
filtering integration
dfi_cutoff_seconds 3600 cutoff period, in seconds, for the filter.
Should not be longer than the filter
window
dfi_time_dim 1000 maximum number of time steps for
filtering period, this value can be larger
than necessary
dfi_bckstop_year 2001 four-digit year of stop time for backward
DFI integration. For a model that starts
WRF-ARW V3: User’s Guide 5-51