Region: SPG

                                     at66                  tt21             tt21/at66         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.02740     0.01112     0.02557     0.00993     0.94369     0.11681
                  Rrs_412     0.01821     0.00257     0.01798     0.00278     0.98614     0.03522
                  Rrs_443     0.01338     0.00169     0.01314     0.00164     0.98243     0.02003
                  Rrs_469     0.01035     0.00102     0.01057     0.00091     1.02258     0.03921
                  Rrs_488     0.00749     0.00055     0.00735     0.00049     0.98252     0.02032
                  Rrs_531     0.00228     0.00009     0.00223     0.00008     0.97445     0.03255
                  Rrs_547     0.00164     0.00007     0.00158     0.00007     0.96348     0.04350
                  Rrs_555     0.00133     0.00007     0.00131     0.00011     0.98619     0.07483
                  Rrs_645     0.00016     0.00006     0.00018     0.00007     1.29708     1.28370
                  Rrs_667     0.00015     0.00003     0.00013     0.00002     0.81564     0.07526
                  Rrs_678     0.00015     0.00003     0.00014     0.00003     0.91566     0.09698
                  aot_869     0.07709     0.02098     0.07512     0.01995     0.99469     0.20761
                 angstrom     0.69682     0.23648     0.58827     0.24370     0.84068     0.20346