-`station_id = [The NRCS/MesoWest identifier for a particular station]`
-`desired_data = [A comma-delimited list of fields you're interested in]`
+`station_id = [the NRCS/MesoWest identifier for a particular station]`
+`desired_data = [a comma-delimited list of fields you're interested in]`
+`units = [either english or metric -- ignored when type is nrcs]`