Figure 7. Spectrogram summary of ambient noise levels on the horizontal component of the Hawaii-2 Observatory (H2O) seafloor seismometer for the duration of Leg 200. Color, as defined in the bar on the right, indicates the relative energy content in decibels relative to m/sec^2 squared per hertz as a function of frequency from 0.001 to 60Hz. By comparing this horizontal component with the vertical component in Figure 6, one can see many more constant frequency bands. The main sediment resonances near 1.1 and 2 Hz dominate even the microseism peak near 0.2 to 0.3 Hz.

Retun to the 2003 Fall AGU Poster

BROADBAND SEISMIC OBSERVATIONS AT THE HAWAII-2 OBSERVATORY DURING ODP LEG 200