GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 3.3 ______ ___ GNGTS 2023 Figure 3: 900 ms time slice extracted from the 1994, 2001, 2004 and 2006 3-D datasets representing the same single DA. The NN training was performed on 2001 data and then applied to all the other data as a stability test of the whole DA calculation procedure. As we can see, the methodology is stable over different and independent data sets collected in different years and the single DA plotted is able to highlight the CO 2 saturated area and its limits. Values plotted in Figure 3 are scaled to the maximum values of more recent 2006 time slice: results evidence that also the magnitude of the prediction is independent from the training data. This is a crucial and not obvious result that points out the high stability and affordability of the whole approach, which is helpful not only for qualitative analyses but also for detailed monitoring purposes.