Region: global

                                     vt01                  vt02             vt02/vt01         
                     Prod       mean       stdev        mean       stdev        mean       stdev
                  chlor_a     0.31202     0.04676     0.28667     0.04461     0.91809     0.00849
                  Rrs_410     0.00985     0.00071     0.00985     0.00071     1.00088     0.00032
                  Rrs_443     0.00810     0.00047     0.00794     0.00047     0.98037     0.00122
                  Rrs_486     0.00622     0.00025     0.00618     0.00025     0.99432     0.00025
                  Rrs_551     0.00220     0.00006     0.00202     0.00006     0.91960     0.00215
                  Rrs_671     0.00025     0.00002     0.00017     0.00002     0.67836     0.02078
                  aot_862     0.09203     0.00403     0.09203     0.00403     0.99997     0.00004
                 angstrom     0.80675     0.03169     0.80763     0.03162     1.00110     0.00019