4.4.21. Model for UAM, REMSAD, and CAMX

  1. Make sure the chemical speciation is set for one of the UAM, REMSAD, or CAMX chemical mechanisms.

    This check involves the SPC setting, explained in Section 4.4.10, “Use a different speciation mechanism or change speciation inputs”. Please note that the files and setup needed for CAMX-PM are not available in SMOKE v2.1.

  2. Set the basic settings for UAM, REMSAD, and CAMX

    In these settings, we will configure the system to select elevated point sources using the Elevpoint program, but not PinG sources.

    • Set RUN_LAYPOINT to N

    • Set RUN_ELEVPOINT to Y (See Section 4.4.14, “Use Elevpoint for selecting elevated and PinG sources” for more information about running Elevpoint to select elevated sources)

    • Set SMK_ELEV_METHOD to 1

    • Set MRG_TEMPORAL_YN to Y

    • Set MRG_SPCMAT_YN to Y

    • Set MRG_LAYERS_YN to N

    • Set MRG_GRDOUT_YN to Y

    • Set SMK_ASCIIELEV_YN to Y

    • Set MRG_GRDOUT_UNIT to moles/hr

    • Set EXPLICIT_PLUMES_YN to N

    • Set HOUR_PLUMEDATA_YN to N

    • Set SMK_SPECELEV_YN to Y

  3. Optionally configure for PinG sources.

    In addition to different instructions in the REPCONFIG file, the point-source run script should have the following settings in each of the following situations.

    • Set SMK_PING_METHOD to 1

  4. Configure approach for plume rise for explicit plume rise sources.

    Explicit plume rise sources (i.e., sources for which plume rise has been computed outside of SMOKE) require additional precomputed plume rise information, previously described for inventory data import in Section 4.4.2.5, “Day-specific and hour-specific point and fire inventories”. In addition to these data for UAM, REMSAD, and CAMX modeling, the following settings must be made in the run scripts. These settings are in addition to the other configurations you need for the other point sources described above. If the only point sources in your inventory are explicit plume rise sources, then use the settings described in steps 2 and 3 above.

    • Set RUN_LAYPOINT to Y

    • Set EXPLICIT_PLUMES_YN to Y

    • Set HOUR_PLUMEDATA_YN to Y