Region: global

                                     ot07                  ot09             ot09/ot07         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.19587     0.02743     0.25307     0.03623     1.29178     0.02753
                  Rrs_412     0.01066     0.00070     0.01024     0.00073     0.96070     0.00640
                  Rrs_443     0.00876     0.00035     0.00819     0.00037     0.93471     0.00567
                  Rrs_490     0.00576     0.00015     0.00600     0.00014     1.04269     0.00476
                  Rrs_516     0.00329     0.00009     0.00333     0.00007     1.01194     0.00726
                  Rrs_565     0.00170     0.00005     0.00181     0.00005     1.06509     0.01158
                  Rrs_667     0.00018     0.00003     0.00025     0.00004     1.43865     0.03952
                  aot_862     0.09706     0.00554     0.08911     0.00481     0.91838     0.01410
                 angstrom     0.11763     0.02269     0.82821     0.07836     7.20932     0.98024