Fig. 2: Comparisons of measured and modeled trends of refractory black carbon (rBC) deposition fluxes.
From: Improved biomass burning emissions from 1750 to 2010 using ice core records and inverse modeling
a Comparisons with 14 Antarctica ice cores and (b) with 11 Greenland ice cores. The trends are shown as ratios of historical rBC flux to the present-day (PD) values (relative to the average value of the period from 1997 to 2010). The gray lines represent the median values of the measured ratios from ice core records, and the gray areas represent the 25th to 75th percentile range across sites. The modeled deposition flux is calculated using the product of the Jacobian matrix (K) and the emission vector (x) (see “Methods”). The two historical biomass-burning emissions inventories are BB4CMIP and LPJ-LMfire; the CEDS inventory includes fossil fuel and biofuel emissions.
