Source attribution for the SJB CH4 BU emission estimates and for the CH4 hot spot detected by aircraft in April 2015. DOI: https://doi.org/10.1525/elementa.038.t9
| Sources . | Attribution (%) . | |||||
|---|---|---|---|---|---|---|
| Bottom-Up Emissions . | SA Mooney Enhancements . | NOAA P-3 Enhancements . | ||||
| Colorado . | New Mexico . | Colorado . | New Mexico . | Colorado . | New Mexico . | |
| NG + CBM | 13 | 51 | 18 | 48 | 25 | 53 |
| Associated gas/oil | – | 1.6 | – | 4.5 | – | 6 |
| Coal | – | 7 | – | 1.5 | – | 1.0 |
| Outcrop | 24 | – | 8 | – | 2.3 | – |
| Other | 2.5 | 1.5 | 19 | 12 | ||
| Sources . | Attribution (%) . | |||||
|---|---|---|---|---|---|---|
| Bottom-Up Emissions . | SA Mooney Enhancements . | NOAA P-3 Enhancements . | ||||
| Colorado . | New Mexico . | Colorado . | New Mexico . | Colorado . | New Mexico . | |
| NG + CBM | 13 | 51 | 18 | 48 | 25 | 53 |
| Associated gas/oil | – | 1.6 | – | 4.5 | – | 6 |
| Coal | – | 7 | – | 1.5 | – | 1.0 |
| Outcrop | 24 | – | 8 | – | 2.3 | – |
| Other | 2.5 | 1.5 | 19 | 12 | ||
Note that the “Outcrop” and “Other” sources are lumped for the aircraft data over Colorado. Note that due to rounding, the total for each category (BU, SA Mooney and NOAA P-3) does not add up to exactly 100.