Experiment description | Kanto urban emissions Mt/month (all period average) | Relative difference with respect to reference |
---|---|---|
Prior (EDGAR) | 34 | − 26% |
Reference inversion | 46 | 0% |
Changes in observations amount and location | ||
 No CONTRAIL | 40 | − 13% |
 Including night observations | 41 | − 11% |
Perturbations in transport modelling | ||
 Space shift 1 grid cell [0 1] | 56 | 21% |
 Space shift 2 grid cells [0 2] | 61 | 32% |
 Time shift 1 h [1 0] | 52 | 13% |
 Time shift 2 h [2 0] | 54 | 17% |
 WRF meteorology | 57 | 23% |
Different background representations | ||
 Mauna Loa (ML) | 71 | 54% |
 ML + 2 ppm | 58 | 26% |
 ML − 2 ppm | 84 | 82% |
 AGCM-BDE (i.e. with backward diffusive ensembles) | 53 | 15% |
 AGCM-BDE + 2 ppm | 40 | − 13% |
 AGCM-BDE − 2 ppm | 67 | 45% |
Inventory | ||
 2× EDGAR | 49 | 7% |
 3× EDGAR | 50 | 9% |
 CDIAC | 33 (from prior 11) | − 28% (+ 300% from prior) |
 EDGAR + VISIT | 47 | 2% |
 EDGAR + CASA | 47 | 2% |