Figure 3:  This figure shows the ozone budget of MOZART and HANK for the northern middle and high latitudes
(30°-90°N, surface to 350 hPa).  (a) total O3 mass for first day of each month; (b) monthly rates of change in
ozone mass, due to chemistry, horizontal (northward) and vertical (downward) transport and deposition;
(c) contributions to ozone sources: chemical production and net transport; and (d) contributions to ozone sinks:
chemical destruction and deposition.