Detailed text transcripts for TV channel - MSNBC - 20110311:10:04:00
First. >> that's a great point. is that measured by the buoy system we have? can you explain that? >> caller: it is. it's a part of it. it's a small part of it. it's a deep ocean network of gauges and they are anchored to the ocean bottom. there's a device on the ocean bottom that measures the height of the ocean, basically. it's sensitive to down to a few millimeters, i believe. it relays up to satellite and it only sends us information about once every six hours unless there's an event because it has limited battery power. so we get that information and they are called dart. the dart buoys e...
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