Another function of Smkinven that only applies to point sources is importing day- and hour-specific data. It can read three input ASCII formats:
CEM data format: The CEM data format provides standard local time hourly emissions by ORIS identification code and boiler number. It was developed in conjunction with the Market Trading Division of EPA, and that division now provides this ASCII file format when the data are released.
EMS-95 format: The EMS-95 hour-specific format can be input to SMOKE using either the EMS-95 average-day format or the IDA/ORL formats for annual and average-day inventories. This format has also been adapted to provide SMOKE with day-specific instead of hour-specific data.
FF10 format:The FF10 day- and hour-specific format can be input to SMOKE using either the FF10 annual or average-day inventories.
In addition to reading the files, Smkinven ensures that the records listed in day- and hour-specific files match records provided in the annual inventory inputs. This is necessary because SMOKE builds its list of all point sources based on the annual and/or average-day inventory files, and these are the only sources that will be listed in the SMOKE intermediate inventory file. Smkinven requires that the year associated with the date of the day-specific and hour-specific emissions is the same as the base year. Smkinven generates an error message when it cannot match a day- or hour-specific source with an inventory source. Please refer to Section 6.13, “Smkinven” for more information about how Smkinven can be used to import these data.
Smkinven also can process the hourly CEM data in a more sophisticated way. Hourly heat input from the CEM data are used to allocate annual emissons to hourly emission data. First of all, the utility program CEMScan must be run before Smkinven, see more information at (Section 5.3.4, “CEMScan”).