Submarine cable network of use to Sydney scientist.
Scientists have called for telecommunications companies to open up their old and new submarine cables to climate change research.
According to Sydney University scientist John Yuzhu You, undersea cables could be used to monitor currents, salinity, seismology and ocean temperatures.
As water moved around a cable, it generated an electromagnetic current that could be measured by voltmeters at cable landing stations, You explained.
Voltmeters would cost up to $3,000 to set up, he said, and because fibre optic cables could remain under the sea for decades, they could be a consistent, continual source of data for researchers.
“Only a tiny fraction of the existing undersea cabling is used for scientific purposes … this is a missed opportunity,” You said.
At first I thought this might be silly, since you can’t generate or detect voltage in a glass fiber but then I had a look at this diagram:
1 – Polyethylene
2 – Mylar tape
3 – Stranded steel wires
4 – Aluminium water barrier
5 – Polycarbonate
6 – Copper or aluminium tube
7 – Petroleum jelly
8 – Optical fibers
I assume then he’s talking about putting a voltmeter on either the copper/aluminum jackets.
Interesting idea. Full story here