1. Ocean- Exploration Technology
SONAR- SOund NAvigation and Ranging. *Used for determining ocean depth. *sound waves from ship bounce off ocean floor & return to ship; shorter return time may indicate a ridge or mountain; Map ocean-floor features.

2. Ocean- Exploration Technology
____________- _________ NAvigation and Ranging. *Used for determining ocean ________. *_________ waves from ship __________ off ocean ___________ & return to ship; shorter return time may indicate a _________ or __________; Map ____________ features.

3. Ocean Exploration Technology - Satellite
SEASAT. *used to measure direction and speed of ocean currents.
Geosat.-Measures changes in height of ocean’s surface. *allows scientists to make
very detailed maps of the ocean floor, *covers a much larger area than ship-based SONAR

4. Ocean Exploration Technology - Satellite
_________. *used to measure _________ and ________ of ocean _________.
__________.-Measures ________ in _______ of ocean’s __________. *allows scientists to make very detailed _____ of the ocean ________, *covers a much _________ area than ship-based ___________

5. Deep-Ocean Exploration Technology
Below- surface vessels:
Robotic vessels: Ex: JASON II & Medea
*Used to explore the deepest parts of the ocean, *can withstand much greater pressure than piloted vessels.*send data back to ship.

6. Deep-Ocean Exploration Technology
_______-________ vessels:
________ vessels: Ex: _______ II & Medea
*Used to explore the _______ parts of the ocean, *can withstand much greater ______ than _______ vessels.*send ______ back to ship.

7. Deep-Ocean Exploration
*Piloted vessels: Ex: ALVIN and other deep-sea submersibles.
*built to withstand crushing pressure/can carry occupants
*ALVIN first discovered hydrothermal vents off the coast of the Galapagos Islands.

8. Deep-Ocean Exploration
*_________ vessels: Ex: ________ and other deep-sea ______________.
*built to withstand ________ ________/can carry ___________
*__________ first discovered ____________ vents off the coast of the _________ ________.