Expedition to ‘Lost City’ uses advanced communications to link land, sea-based explorers

Jul 24, 2005
Lost City advanced communications

A precedent-setting ocean expedition will use “telepresence” to connect Dr. Robert Ballard at sea with Chief Scientist Dr. Debbie Kelley ashore as they explore the unique Lost City hydrothermal vents. The July 23 through August 1 mission is financially supported and coordinated by NOAA, the National Oceanic and Atmospheric Administration.

“Lost City is a remarkable, unique field of tall chimneys that spiral up from the ocean floor, and we are telling its story in real time through a precedent-setting ocean expedition that raises the bar on use of communications technology,” said Ballard, University of Rhode Island oceanography professor and the expedition’s principal investigator. “Normally, on a deep-ocean expedition, I talk with the mission’s chief scientist across a table on the research vessel,” he said. “In this case, we talk across the planet.

“Only now has our nation, led by NOAA, created a major program to explore the vast uncharted regions of our planet that lie beneath the sea, “ said Ballard. “Stay tuned for new discoveries!”

From NOAA ship Ronald H. Brown in the mid-Atlantic ocean, Ballard will communicate with Kelley, who will be in a specially designed command center at the University of Washington. She and other scientists connect to Ballard, and to images from the seafloor, via “telepresence,” using high-speed Internet and satellites. “With teams ashore at the University of Rhode Island and University of Washington, more intellectual capital can be applied to the mission,” said Ballard. In the past, missions have been limited by ship-to-shore communications capacity, the finite number of berthing spaces on research vessels and by competing obligations which sometimes precluded top scientists from going to sea.

“Lost City is truly one of the most remarkable places on our planet. Its serendipitous discovery shows that there is still much left to be learned about our oceans and the life they sustain,” said Kelley, who with colleagues discovered the field of hydrothermal chimneys in 2000, the first of its kind to be discovered. Unlike “black smoker” chimney vents first discovered on the Galapagos Ridge by Ballard in 1977, the fluid venting at Lost City is not driven by heat from cooling volcanoes, but from heat when seawater reacts with rocks below the field

Fluids in black chimney smokers are hot (reaching more than 700°F), but at Lost City vents are cooler (less than 200°F) and are so alkaline they are similar in pH to products used to unclog household drains. Because of its unique chemistry, the field hosts novel life forms that live in the absence of sunlight, and thrive on methane and hydrogen gases given off during alteration of the rocks.

The Lost City vent field is on an underwater mountain the size of Mt. Rainier, on ocean crust about 1.5 million years old. “Because of its unique chemistry and geologic setting, Lost City may be one of our closest analogues to hydrothermal systems active during early formation of oceans on Earth and other planets,” said Kelley.

Source: University of Rhode

Explore further: Short, sharp shocks let slip the stories of supernovae

Related Stories

Oceanographer publishes atlas of seafloor volcanoes and deep-ocean life

May 20, 2015

A University of Washington oceanographer has helped create the first full-color photographic atlas of the ocean floor. "Discovering the Deep: A Photographic Atlas of the Seafloor and Ocean Crust" (Cambridge University Press, 2015) was almost a decade in the making and contains more than 500 original illustrations and col ...

Recommended for you

How bad can solar storms get?

18 hours ago

Our sun regularly pelts the Earth with all kinds of radiation and charged particles. How bad can these solar storms get?

Mars rover's ChemCam instrument gets sharper vision

18 hours ago

NASA's Mars Curiosity Rover's "ChemCam" instrument just got a major capability fix, as Los Alamos National Laboratory scientists uploaded a software repair for the auto-focus system on the instrument.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.