1. Future of Deep-Ocean Observatories
G&G-SOEST Retreat: Dec 3, 2007
Fred

2. Experience: five cabled observatories:
All designed to provide real-time data from the ocean floor to ship or land.
• OSS ( , Challenger, logging cable)
• ULF/VLF ( , Navy, custom optical)
• HUGO ( , SL optical)
• H2O ( , telecom, coax)
• ALOHA ( , SL optical)

3. 35,000 km of installed optical cable AVAILABLE for scientific re-use in the Pacific basin alone.

4. Ocean Observing Initiative (OOI)
The Global Ocean Observatory comprises a set of highly capable interactive moored buoys sited around the world’s ocean in places where surface-to-bottom ocean data needs are greatest. These observatories will consist of large, rugged, self-powered, telemetering buoys where scientific need dictates high data-return rates and power requirements, and simpler, but still very capable,designs for other settings.

5. delivered to ocean floor: 500 W 8
ALOHA
Buoy
Ratio A/B
data rate:
~1 Gb/s
128 kb/s
7812.5
power:
4000 W
4000 W* 1
delivered to ocean floor:
500 W 8
* ~80 barrels of diesel/year

6. The Regional Cabled Ocean Observatory, in cooperation with ongoing Canadian efforts, will instrument an entire tectonic plate at key locations in the Northeast Pacific Ocean off shore northern California, Oregon, Washington, and Vancouver Island. A permanent electro-optical seafloor cable will connect multiple seafloor nodes that will provide power (tens of kilowatts) and high bandwidth (data transfer rates of 10 to 100 gigabits per second) for the sensors, instruments, and underwater vehicles, allowing access to surrounding waters from the seafloor to the sea surface.

8. MREFC
"−    The OOI facility must be built to cost, meaning that only scope or schedule, not cost, can be adjusted.."
UNTESTED TECHNOLOGIES IGNORING TELCOM EXPERIENCE.

9. SMALL STEPS
Support cable re-use
build an ROV