Last 12 Hours of Underwater Noise Levels

OrcaSound - San Juan Island WA

Date: 5/28/05

_____________-9 hrs__________________-6 hrs___________________-3 hrs___________Time: 13:59

dB - Left Hydrophone
dB - Left Max over past hr
dB- Right Hydrophone
dB - Right Max over past hr
109.86
123.56
105.31
119.77

Sound Snippet - Highest Received Level in past hour

Sound units are dB re 1 microPascal - 100 hz to 15 kHz bandwidth