Frequency spectra of displacement averaged in three depth bands. The three depth bands are 100–200 m (red), 200–400 m (blue), and 400–500 m (green). The Coriolis frequency, f, and typical buoyancy frequency, N, are indicated with solid vertical lines. Power-law fits (dashed lines) to the random internal wave band of frequencies give the exponents listed. For comparison, the thick black line depicts the GM spectrum at standard energy. DOI: https://doi.org/10.1525/elementa.186.f8