Three-dimensional, volume visualization of cloud tracer material for model cc_i1_b1_95, spanning the period 2010–2020. The small gray sphere appearing in each panel beginning in 2012.5 indicates the accretion volume, r < r _acc = 750  R _S . The color represents the amount of tracer (value of ) in a particular region, with the transparency also dependent upon the value of (as indicated by the slanted gray bar above the color bar). The cloud material initially has a uniform value of .

(An animation of this figure is available in the online journal.)