Region: PacN35

                                     tt21                  tt22             tt22/tt21         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.13644     0.09516     0.13557     0.09392     0.99579     0.00610
                  Rrs_412     0.00954     0.00436     0.00957     0.00432     1.00463     0.00650
                  Rrs_443     0.00778     0.00313     0.00780     0.00311     1.00314     0.00440
                  Rrs_469     0.00702     0.00271     0.00703     0.00269     1.00254     0.00356
                  Rrs_488     0.00570     0.00145     0.00571     0.00144     1.00166     0.00230
                  Rrs_531     0.00238     0.00017     0.00238     0.00016     1.00176     0.00241
                  Rrs_547     0.00177     0.00006     0.00177     0.00006     1.00197     0.00267
                  Rrs_555     0.00143     0.00005     0.00143     0.00006     1.00264     0.00360
                  Rrs_645     0.00017     0.00007     0.00017     0.00008     1.01189     0.01591
                  Rrs_667     0.00016     0.00005     0.00016     0.00005     1.00612     0.00819
                  Rrs_678     0.00019     0.00002     0.00019     0.00002     1.00602     0.00797
                  aot_869     0.08496     0.02174     0.08441     0.02100     0.99448     0.00732
                 angstrom     0.88195     0.00492     0.89011     0.01635     1.00921     0.01290