Fig. 1: High-level summary of a protocol for creating hybrid top-down/bottom-up, measurement-based inventories using source-resolved aerial data that considers both quantification and sample-size uncertainties (with finite population corrections) for the measured sources and combines bottom-up inputs for unmeasured sources to create a complete hybrid inventory.
a Protocol for the measured source portion of the inventory; b protocol for the unmeasured (non-pneumatic, pneumatic instruments, and pneumatic pumps) portion of the inventory; and c summation to yield the total inventory.
