The figure displays variation in |$\widehat{\text{CAE}}_{i,k}$| (as defined in equation 17) of long-wave model predictions as a function of surface pressure (top row) and surface gas density (bottom row). The extent of the plots on the y-axis covers the full range of the error quantity on the y-axis of each plot, with white spaces corresponding to values falling in the lowest value bin. Bins have been normalized to percentages by the total number of test columns in each x-axis bin.