Region: AerAscension

                                     tt17                  tt18             tt18/tt17         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.11632     0.07641     0.08968     0.04126     0.84865     0.20832
                  Rrs_412     0.00893     0.00339     0.01023     0.00239     1.24762     0.86283
                  Rrs_443     0.00720     0.00212     0.00795     0.00157     1.19474     0.40345
                  Rrs_488     0.00543     0.00103     0.00574     0.00081     1.07513     0.12088
                  Rrs_531     0.00217     0.00038     0.00220     0.00034     1.01831     0.06480
                  Rrs_547     0.00160     0.00029     0.00160     0.00028     1.00288     0.04370
                  Rrs_667     0.00013     0.00006     0.00012     0.00005     0.80295     0.97310
                  Rrs_678     0.00013     0.00006     0.00014     0.00005     0.92133     3.89759
                  aot_869     0.11158     0.03672     0.11167     0.03677     1.00069     0.00445
                 angstrom     0.83173     0.35976     0.83473     0.35999     1.00453     0.00550
                     nflh     0.00332     0.00211     0.00544     0.00210    35.83895   285.17841