Region: SIO

                                         vt15                    vt21                   vt21/vt15
                     Prod       mean       stdev        mean       stdev        mean       stdev         R^2        mapd
                  chlor_a     0.05236     0.01970     0.05236     0.02021     0.99608     0.02710     0.99672     1.90891
                  Rrs_410     0.01301     0.00228     0.01298     0.00232     0.99769     0.01178     0.99660     0.75064
                  Rrs_443     0.01052     0.00156     0.01051     0.00159     0.99872     0.00735     0.99823     0.46447
                  Rrs_486     0.00683     0.00068     0.00683     0.00069     0.99911     0.00511     0.99797     0.33669
                  Rrs_551     0.00153     0.00009     0.00152     0.00009     0.99706     0.01138     0.96566     0.70161
                  Rrs_671     0.00013     0.00002     0.00013     0.00002     1.00192     0.01610     0.98335     0.83899
                  aot_862     0.07385     0.01947     0.07375     0.01955     0.99826     0.00372     0.99989     0.13197
                 angstrom     0.82430     0.24605     0.83192     0.24758     1.00963     0.01742     0.99744     1.03782
                  epsilon     1.06842     0.02964     1.06924     0.02996     1.00076     0.00170     0.99639     0.10534