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 Table 4. Strat-trop exchange in GCC_13.0.0-beta.1 for year 2019
          (i.e. species flux across 100 hPa)

 Units: g/yr

 Annual mean is weighted by the number of days per month
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                  Pb210         Be7        Be10
Jan 2019         5.6448      6.7791    106.4259
Feb 2019         2.3028      6.1662     94.9218
Mar 2019        -0.4964      4.5165     69.1188
Apr 2019        -0.4468      5.7557     82.1652
May 2019        -0.3693      3.7954     56.1720
Jun 2019        -0.8134      3.4109     56.4898
Jul 2019        -4.7973      3.3632     58.9685
Aug 2019        -5.4036      4.9743     81.3990
Sep 2019        -4.3207      7.2693    114.9616
Oct 2019         0.0678      5.4072     84.7920
Nov 2019         4.3358      7.0626    105.4139
Dec 2019         2.4400      4.0143     64.4101
Annual Mean     -0.1732      5.1944     81.0647