NCL
                     cam157_kk_d     cam157_kk_d      difference     rel diff(%)
Sources (Tg/yr)         3255.795        3188.799          66.995           2.058
        emission        3255.795        3188.799          66.995           2.058
Sinks (Tg/yr)           3252.915        3193.101          59.814           1.839
         dry_dep         835.960         813.436          22.524           2.694
         wet_dep        2416.955        2379.665          37.290           1.543
Lifetime (days)            0.894           0.863           0.031           3.479
Burden (Tg)                7.969           7.551           0.419           5.254
    accumulation           0.397           0.377           0.020           5.023
          Aitken           0.001           0.001          -0.000          -7.807
          coarse           7.571           7.173           0.399           5.268