Figure 2

Figure 2: (a) Power spectra of chlorophyll-a concentration variations in a NW Pacific region characterized by relatively intense BIG waves [reproduced from a manuscript under review]: while the highest spectral peak (seen as red) corresponds to long Rossby waves, a set of smaller peaks (light blue) is due to semi-diurnal internal tides in this region. (b) The observed high rate of spectral roll off (the dotted line illustrates the k-3 power law) points to the dominance of BIG wave turbulence. [Glazman et al., 1999, Weichman et al., 1999].