1. Tags Tags Biopsy samples Biopsy samples Photos Photos Studying Whales

2. Lisa Munger, Oceanographer Meet a Whale Researcher

3. Using Sound in the Ocean Using Sound in the Ocean Sonobuoys (expendable Navy hydrophones) Towed hydrophone arrays Seafloor moorings

4. How sound works - compression wave

5. http://www.kettering.edu/%7Edrussell/demos.html How sound works - compression wave

6. Time Amplitude Period Frequency (cycles/sec) 1 s Speed of sound in air: 300 m/s Speed of sound in water: 1500 m/s Frequency = 1/period Wavelength = sound speed x period Parts of a wave

7. Real world

8. Using Sound in the Ocean Using Sound in the Ocean Sonobuoys (expendable Navy hydrophones) Towed hydrophone arrays Seafloor moorings

9. Spectrogram