Detecting Occluded Leaks

On the heels of the publication of our unmatched methane emission detection/localization/quantification performance in the METEC ADED blind testing, we take a look back at some interesting examples of plumes we saw during that campaign. We are often asked, “What if the leak is behind a tank or something – do you need to see the whole plume, or the origin of the plume, in order to accurately quantify its emission rate?” Nope. As long as you get a fairly representative cross-section of the plume – be that an image including the origin or not, or just an image of the plume tail – the quantification results are nearly identical in both cases. Below is an example – showing our high-accuracy quantification as compared to the true flow rate, as well as the nearly identical quantification values for an image including the whole plume and its origin (left) and an image that excludes the plume origin and where the plume is rather diffuse (right). METEC publication -- QLM is participant "B" in this report: https://chemrxiv.org/engage/chemrxiv/article-details/65298bd3bda59ceb9a869920