Region: SIO

                                         vt21                    vt23                   vt23/vt21
                     Prod       mean       stdev        mean       stdev        mean       stdev         R^2        mapd
                  chlor_a     0.04743     0.02020     0.05100     0.02176     1.07587     0.04122     0.99513     7.76981
                  Rrs_410     0.01345     0.00227     0.01297     0.00222     0.96409     0.02370     0.98056     3.22143
                  Rrs_443     0.01086     0.00158     0.01047     0.00155     0.96476     0.01683     0.98677     3.31502
                  Rrs_486     0.00694     0.00066     0.00675     0.00067     0.97228     0.01083     0.98844     2.91325
                  Rrs_551     0.00151     0.00010     0.00150     0.00011     0.99195     0.01898     0.92859     2.01791
                  Rrs_671     0.00013     0.00002     0.00013     0.00002     0.98623     0.04631     0.88799     4.52063
                  aot_862     0.07458     0.02172     0.07432     0.02160     0.99661     0.00482     0.99966     0.31338
                 angstrom     0.83911     0.24096     0.82836     0.23568     0.98892     0.05278     0.96631     3.02593
                  epsilon     1.06924     0.03122     1.06784     0.03032     0.99872     0.00525     0.96658     0.32601