Fig. 5

a Number of 8:30–11:30 time windows in a year for which the posterior uncertainty in the 3 h mean emissions are less than 20% (N20) in INV-3 h; b Relative posterior uncertainty in annual CO₂ emissions in INV-annual for 1 satellite with a swath width of 300 km (blue) and for 2 satellites with a swath width of 150 km (purple); and c the same as b but for absolute values of posterior uncertainty. The results are binned according to the clump annual emission with bin limits given on the x-axis of the figure. Numbers within the figure indicate the number of clumps in the bin and the fraction of total CO₂ emissions generated by the clumps. Dots and error bars are the median and interquartile range of N20 (a) and posterior uncertainty (b)