Independent Subspace Analysis of the Sea Surface Temperature Variability: Non-Gaussian Sources and Sensitivity to Sampling and Dimensionality

Figure 9

Sorted scaled-interactivities by decreasing order (solid circles), ITIs (solid squares) with cumulated ITIs (open crossed circles) and unbiased total NE (horizontal dashed line). The sorted IC groups are labeled (e.g., 32 means group of IC2 and IC3). The 95% confidence levels of the selected ITIs are those for which the cumulated ITIs are below the dashed line. (a) Case (a): high noise and (b) case (b): intermediate noise.

(a)

(b)