Figure 2.

Emission reduction of LDAR scenarios with aerial + OGI and satellite + aerial + OGI for (a) base case (long duration of high-emitters) and (b) sensitivity analysis S3 (short duration of high-emitters) scenarios. The color represents the detection threshold of the aerial technology. Horizontal black lines indicate the reduction of OGI-only LDAR programs. The horizontal axis represents the frequency of aerial and OGI; OGI is used only once a year in all scenarios, so the variation on frequency is due to the aerial surveys.