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  Annual Global O3 Strat-Trop Exchange in v11-02c
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Jan         844.716 Tg/yr
Feb         603.745 Tg/yr
Mar         529.572 Tg/yr
Apr         467.814 Tg/yr
May         396.792 Tg/yr
Jun         361.003 Tg/yr
Jul         338.121 Tg/yr
Aug         411.001 Tg/yr
Sep         406.270 Tg/yr
Oct         453.855 Tg/yr
Nov         478.676 Tg/yr
Dec         604.072 Tg/yr
 
Annual      491.303 Tg/yr
 
NOTE: O3 STE flux is computed using the up/down mass 
      flux diagnostic (UP-FLX-$) at 100 hPa.