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Glossary:Measurement based inventory
An inventory that contains data from direct site-level measurements of the asset in the inventory. Traditional bottom-up inventories are often not based on site-level measurements but on emissions factors and equipment counts. Examples of site-level measurements are determination of a single total emission rate for an entire site, such as a compressor station, a well pad, or a central production facility.
A matching procedure can be implemented by the test center to pair reported detection data with controlled release data, and to classify each as:
- True Positive (TP) - a controlled release and reported detection which were paired.
- False Negative (FN) - a controlled release which remained unpaired
- False Positive (FP) - a reported detection which remained unpaired.
Measurement-informed inventory – means a greenhouse gas emissions inventory adjusted or informed by measurements of greenhouse gas emissions from regional, local or point-source monitoring or through parametric monitoring including but not limited to measurement of pressure, temperature, flow or control efficiency.[1]
Also referred to as Measurement informed inventory