From Lrose Wiki

IntfRemove identifies and removes interference in Titan files.


IntfRemove reads DBZ and SNR data in an input DsRadar FMQ, identifies interference and removes the interference power from the power fields, and writes the cleaned up data out to a DsRadar queue.


The following items are required:

  • Dual-polarimetric data via DsRadar FMQ (an NCAR file type and file used to exchange data)

Parameter file

IntfRemove uses one parameter file that includes input/output directories and interference detection parameters.

Ensure file is up to date

To obtain the default parameter file, use the following command:

/path/to/lrose/install/bin/IntfRemove -print_params > param_file_name

If you already have a parameter file and simply want to check for (and add) updated parameters while retaining current parameters, use the following command:

/path/to/lrose/install/bin/IntfRemove -params orig_param_file_name -print_params > new_param_file_name

Important parameters

Data Input

  • input_fmq_url: path to dual-polarimetric data via DsRadar FMQ

Input Field Information

  • dsr_name_DBZ: name of reflectivity field
  • SNR_available: indicate whether an SNR field is available; if not, SNR will be calculated from reflectivity
  • dsr_name_SNR: name of SNR field

Data Output

  • output_fmq_url: path where cleaned data will saved

Running IntfRemove

To check all command line options for IntfRemove, including debugging options and file paths, type the following command into a terminal.

/path/to/lrose/install/bin/IntfRemove -h

Once your parameter file is complete, use a command similar to the following to run the application:

/path/to/lrose/install/bin/IntfRemove -params param_file_name

The user can also specify the location of cfradial files in the following manner:

/path/to/lrose/install/bin/IntfRemove -f /path/to/cfradial/files/ -params param_file_name