It's a golden age for shipwreck discoveries. Why?
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It's a golden age for shipwreck discoveries. Why?
A mechanical tech for OceanX works on a submarine at the Triton Facility in Sebastian, Fla., Oct. 25, 2019. More lost shipwrecks are being found because of new technology, climate change and more vessels scanning the ocean floor for science or commerce. (Scott McIntyre/The New York Times)

by Michael Levenson



NEW YORK, NY.- Some were fabled vessels that have fascinated people for generations, like Endurance, Ernest Shackleton’s ship that sank in the Antarctic in 1915. Some were common workhorses that faded into the depths, like the Ironton, a barge that was carrying 1,000 tons of grain when it sank in Lake Huron in 1894.

No matter their place in history, more shipwrecks are being found these days than ever before, according to those who work in the rarefied world of deep-sea exploration.

“More are being found, and I also think more people are paying attention,” said James P. Delgado, an underwater archaeologist based in Washington, D.C. He added: “We’re in a transitional phase where the true period of deep-sea and ocean exploration in general is truly beginning.”

So what’s behind the increase?

Experts point to a number of factors. Technology, they say, has made it easier and less expensive to scan the ocean floor, opening up the hunt to amateurs and professionals alike. More people are surveying the ocean for research and commercial ventures. Shipwreck hunters are also looking for wrecks for their historical value, rather than for sunken treasure. And climate change has intensified storms and beach erosion, exposing shipwrecks in shallow water.

Underwater robots and new imaging are helping.

Experts agreed that new technology has revolutionized deep-sea exploration.

Free-swimming robots, known as autonomous underwater vehicles, are much more commonplace than they were 20 years ago, and can scan large tracts of the ocean floor without having to be tethered to a research vessel, according to J. Carl Hartsfield, the director and senior program manager of the Oceanographic Systems Laboratory at the Woods Hole Oceanographic Institution in Massachusetts.

Remotely operated vehicles can travel 25 miles under the ice sheet in polar regions, he said. And satellite imagery can detect shipwrecks from plumes of sediment moving around them that are visible from space.

“The technology is more capable and more portable and built on scientists’ budgets,” Hartsfield said, adding: “You can sample larger and larger areas of the ocean per dollar.”

Jeremy Weirich, director of Ocean Exploration at the National Oceanic and Atmospheric Administration, said the expanded use of telepresence systems, which stream images of the ocean floor to anyone with an internet connection, has allowed more people to explore and discover shipwrecks in real time.

And the digitization of archives has made it easier to find and consult historical documents, said David L. Means, a marine scientist and shipwreck explorer.

Even so, it is still easier to organize a mission to find a famous wreck than an obscure one, Hartsfield said.

“You can get investors to find out what happened to Amelia Earhart, but not to find cargo freighters,” he said. “It’s all about the compelling story.”

Climate change is a factor.

Climate change is playing a role, experts said, by producing more frequent and powerful storms that have eroded shorelines and churned up sunken vessels.

In late January, for example, several months after Hurricane Fiona battered Canada, a 19th-century shipwreck washed ashore in the remote Cape Ray section of Newfoundland, causing a stir in the small community of about 250 people.

In 2020, a couple walking along a beach in St. Augustine, Florida, noticed wooden timbers and bolts sticking out of the sand. Archaeologists said the pieces were most likely remnants of the Caroline Eddy, a ship built during the Civil War that sank in 1880. They were probably exposed, experts said, because of coastal erosion caused by a tropical storm named Eta and by Hurricane Matthew in 2016 and Hurricane Irma in 2017.

Those kinds of coastal discoveries may become more commonplace, Delgado said. “As the ocean rises,” he said, “it’s digging things out that have been buried or hidden for more than a century.”

Treasure hunting isn’t what it used to be.

Private treasure hunters still search for shipwrecks, hoping to find sunken gold, coins or jewels. But their discoveries often become mired in legal battles, and rarely are their claims ever realized, said Deborah N. Carlson, the president of the Institute of Nautical Archaeology, a nonprofit research organization.

She pointed out that underwater archaeologist Peter Throckmorton once called ocean treasure hunting “the world’s worst investment,” and found that it “only benefits promoters and lawyers.”

Private claims to a sunken ship can be contested by nations or insurers. Spain, for example, successfully defended its claim that it maintained ownership of a Spanish frigate that was sunk by the British in 1804 after an American treasure-hunting company found the shipwreck off Portugal in 2007 and took its trove of gold and silver coins to a Florida warehouse.

The UNESCO Convention on the Protection of the Underwater Cultural Heritage, adopted in 2001, sought to protect shipwrecks from looters and said countries should preserve them and other undersea relics “for the benefit of humanity.”

Hartsfield said that if the goal is “to observe and not disturb” a shipwreck, the cost goes down because it doesn’t require anyone to lower a submersible on a winch to pluck items off the ocean floor. Scientists, he said, can just use a video camera to record the artifacts they find.

“Now, your gold coin is a 4K picture,” Hartsfield said, referring to a type of high-definition video. “If your sensors are better, you don’t have to necessarily recover an object to investigate it.”

More are joining in and exploring the ocean depths.

While treasure hunters still ply their trade, they have been joined by more commercial and research ventures that have expanded the realm of deep-sea exploration.

Weirich said that more shipwrecks have been found over the years in large part because of private companies surveying for oil and gas leases, cables and pipelines.

Phil Hartmeyer, a marine archaeologist at NOAA Ocean Exploration, said that more private research groups are also scanning the ocean floor and helping to move scientists around the world closer toward a goal of mapping the entire seabed by 2030.

NOAA, for example, works with the Schmidt Ocean Institute, a nonprofit research group founded by Eric Schmidt, the former CEO of Google, and his wife, Wendy Schmidt; the Ocean Exploration Trust, a nonprofit founded by Robert Ballard, who led the expedition that found the Titanic in 1985; and OceanX, an ocean exploration company founded by billionaire investor Ray Dalio and his son, Mark.

Carlson said that the field of underwater archaeology has also “expanded significantly,” with more graduate programs producing archaeologists interested in excavating sunken ships for their historical value.

“There are a lot more people in this discipline than there were 50 years ago,” Carlson said, “and a lot more people are looking for shipwrecks and finding them.”

This article originally appeared in The New York Times.










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