Region: SPG

                                         vt22                    vt23                   vt23/vt22
                     Prod       mean       stdev        mean       stdev        mean       stdev         R^2        mapd
                  chlor_a     0.02487     0.01306     0.02477     0.01299     0.99515     0.03555     0.99621     1.93684
                  Rrs_410     0.01717     0.00315     0.01718     0.00315     1.00025     0.00174     0.99993     0.10109
                  Rrs_443     0.01267     0.00195     0.01267     0.00195     1.00001     0.00195     0.99987     0.11872
                  Rrs_486     0.00734     0.00072     0.00735     0.00072     1.00058     0.00210     0.99958     0.17434
                  Rrs_551     0.00144     0.00009     0.00144     0.00009     0.99906     0.01087     0.97516     0.58571
                  Rrs_671     0.00013     0.00002     0.00013     0.00002     0.98062     0.02422     0.97744     3.00270
                  aot_862     0.07811     0.01746     0.07873     0.01757     1.00799     0.00245     0.99991     0.84742
                 angstrom     0.67966     0.18649     0.67773     0.18416     0.99743     0.02471     0.99288     1.62459
                  epsilon     1.04638     0.02128     1.04619     0.02121     0.99982     0.00188     0.99132     0.11917