Region: AtlNE

                                     tt20                  tt21             tt21/tt20         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.94652     1.09854     0.50400     0.24561     0.74375     0.32439
                  Rrs_412     0.00450     0.00246     0.00468     0.00185     1.06899     4.91394
                  Rrs_443     0.00371     0.00178     0.00432     0.00137     1.42152     0.99248
                  Rrs_469     0.00390     0.00139     0.00438     0.00113     1.19770     0.33112
                  Rrs_488     0.00346     0.00106     0.00393     0.00085     1.18046     0.20956
                  Rrs_531     0.00231     0.00039     0.00240     0.00032     1.04547     0.08331
                  Rrs_547     0.00193     0.00031     0.00193     0.00026     1.00836     0.07053
                  Rrs_555     0.00160     0.00031     0.00161     0.00023     1.02034     0.10879
                  Rrs_645     0.00030     0.00011     0.00026     0.00012     0.91008     0.38277
                  Rrs_667     0.00024     0.00008     0.00024     0.00008     0.97860     0.16876
                  Rrs_678     0.00027     0.00010     0.00029     0.00011     1.07818     0.18681
                  aot_869     0.08964     0.03003     0.08984     0.02998     1.00261     0.01641
                 angstrom     1.09246     0.41802     1.10070     0.41377     1.01526     0.03617
                      flh     0.00543     0.00332     0.00767     0.00383     1.84694     1.40549