Figure 8. Horizontal component spectrograms in the band 0.01-0.5Hz on one of the Guralp horizontals are shown for a 22day window during the drilling on Leg 200. The peaks near 0.4Hz correlate with local storm activity, while the 0.1-0.3Hz signals occur with the arrival of swell from distant storms. The noise (increasing to the right) at long periods appears to be caused by tidal currents.

Retun to the 2003 Fall AGU Poster

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