Apparatuses, systems, and methods for determining gas emssion rate detection sensitivity and gas flow speed using remote gas concentration measurements

A method comprising:

• emitting a plurality of gas plumes with known emission rates;
• collecting, with one or more remote gas sensors, a plurality of gas concentration measurements corresponding to each member of the plurality of gas plumes with known emission rates;
• determining a gas flow speed corresponding to each member of the plurality of gas plumes with known emission rates;
• determining an amount of received light corresponding to each member of the plurality of gas plumes with known emission rates using the one or more remote gas sensors;
• processing the plurality of gas concentration measurements to determine if each member of the plurality of gas plumes with known emission rates is detected or not detected by the one or more remote gas sensors;
• and
• generating, based at least in part on the gas flow speeds, the amounts of received light, and detected members of the plurality of gas plumes, a generalized probability of detection (PoD) function relating, at least, a probability of detecting a gas plume, the emission rates, the gas flow speeds, and the amounts of received light.

A system comprising:

• at least one remote gas sensor configured to collect amounts of light from a scene;
• a processor;
• and
• a memory, the memory containing non-transitory instructions which, when executed by the processor cause the processor to:
• determine gas concentration measurements based on the amounts of light;
• estimate a gas flow speed associated with the scene;
• and
• determine a detection sensitivity associated with the at least one remote gas sensor and the scene based, at least in part, on a generalized probability of detection (PoD) function relating, at least, a probability of detecting a gas plume, the emission rates, the gas flow speeds, and the amounts of received light.