def prepare_hmet(self):
        """
        Prepare HMET data for simulation
        """
        if self._prepare_lsm_hmet:
            netcdf_file_path = None
            hmet_ascii_output_folder = None
            if self.output_netcdf:
                netcdf_file_path = '{0}_hmet.nc'.format(self.project_manager.name)
                if self.hotstart_minimal_mode:
                    netcdf_file_path = '{0}_hmet_hotstart.nc'.format(self.project_manager.name)
            else:
                hmet_ascii_output_folder = 'hmet_data_{0}to{1}'
                if self.hotstart_minimal_mode:
                    hmet_ascii_output_folder += "_hotstart"

            self.event_manager.prepare_hmet_lsm(self.lsm_data_var_map_array,
                                                hmet_ascii_output_folder,
                                                netcdf_file_path)
            self.simulation_modified_input_cards += ["HMET_NETCDF",
                                                     "HMET_ASCII"]
        else:
            log.info("HMET preparation skipped due to missing parameters ...")