Region: AtlNE

                                     tt17                  tt18             tt18/tt17         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.92221     1.08277     0.47998     0.23316     0.73132     0.32036
                  Rrs_412     0.00449     0.00247     0.00481     0.00188     1.43771     3.89696
                  Rrs_443     0.00375     0.00179     0.00438     0.00140     1.41121     0.88258
                  Rrs_488     0.00346     0.00108     0.00392     0.00086     1.17911     0.21103
                  Rrs_531     0.00229     0.00039     0.00236     0.00034     1.03883     0.06215
                  Rrs_547     0.00190     0.00030     0.00190     0.00028     1.00104     0.04538
                  Rrs_667     0.00024     0.00007     0.00022     0.00006     0.93910     0.12084
                  Rrs_678     0.00027     0.00010     0.00027     0.00009     1.01688     0.11337
                  aot_869     0.08884     0.02933     0.08901     0.02932     1.00195     0.01480
                 angstrom     1.08885     0.42093     1.09687     0.41647     1.01402     0.03171
                     nflh     0.00886     0.00602     0.01101     0.00628     1.55740     0.89378