Growth rates driven by C/NOFS drifts as a function of local time and altitude in the Pacific September sector during 2012. Areas shaded in red and blue correspond to positive and negative growth rates, respectively. The vertical drift, V, used as input to SAMI2, is shown by a solid blue line, and the dashed blue line marks 0 m/s. The dashed black line indicates the peak altitude of K^F as a function of local time. The occurrence frequency, f, of bubbles is shown in the purple histograms at the bottom of each panel.