Opens the Global Database SOURCES.DAT and, if specified, the additional Local Database.
The maximum amount of sources is 150 in total (Global+Local Database).
Make sure that it exists and that it is readable.
The Local Database will only be read if the Global Database was opened successfully.
The type of source is defined in the Main The Configuration File .CF - Overview in the [SOURCES]-Section, not in the Sources Database.
Normally, if no [SOURCES]-Section is found but pollutants are used in the area, PM10 is the default pollutant.
If your [SOURCES]-Section contains invalid data, ENVI-met will disable the sources!