USS Nevada located by Search and Ocean Infinity

Launching an AUV from an Ocean Infinity vessel.

Capable of working in the deepest, darkest, and coldest reaches of the ocean, AUVs return to the surface with data that provides a detailed sense of what sonar and other sensors have revealed.

[Photo courtesy of Ocean Infinity]

From ROVPlanet

Veteran battleship, which saw action in both World Wars and was used for atomic bomb testing, found in Pacific with state-of-the-art subsea technology

SEARCH, Inc. (SEARCH), the largest underwater and terrestrial archaeology firm in the United States, and Ocean Infinity, the marine robotics company, are pleased to announce the discovery of USS Nevada (BB-36), one of the U.S. Navy’s longest serving battleships, and viewed as the epitome of American resilience and perseverance.
USS Nevada was located 65 nautical miles southwest of Pearl Harbor at a depth of over 15,400 feet.
The discovery is the result of a successful collaboration between SEARCH and Ocean Infinity and marks the combination of SEARCH’s leading maritime archaeological expertise and Ocean Infinity’s unrivalled robotic technology and deep-water search capability.
The mission was jointly co-ordinated between SEARCH’s operations centre and one of Ocean Infinity’s vessels, Pacific Constructor.
Pacific Constructor set sail for a range of commercial tasks in the Pacific in early 2020, ahead of the COVID-19 pandemic.
As a result of the global health crisis, the ship has remained at sea on a range of taskings.

The stern of the wreck has the remains of “36” and “140.”

Nevada’s designation was BB-36 and the 140 was painted on the structural “rib” at the ship’s stern for the atomic tests to facilitate post-blast damage reporting.

[Photo courtesy of Ocean Infinity/SEARCH, Inc.]

USS Nevada’s History

USS Nevada had an extraordinary service, spanning three and a half decades.
She was launched in 1914, and performed escort duties for valuable convoys headed to the British Isles.
At the end of WWI she escorted the ocean liner George Washington, carrying U.S. president Woodrow Wilson to attend The Paris Peace Conference.
In WWII, on 7 July 1941 in the attack on Pearl Harbor, USS Nevada was the only battleship to get underway but, having been struck by five bombs, finally sank in nearby shallow waters.
During this action 60 of her crew were killed and 109 wounded.
Following salvage operations she soon re-joined the war effort, sailing to the United Kingdom to take part in the D-Day landings, amongst other European operations.
She then sailed to the Pacific, arriving off Iwo Jima in February 1945 and played an important part in the invasion of Okinawa.
After WWII, USS Nevada was assigned to be a target ship in the first Bikini atomic experiments in 1946, which she survived.
Finally, in 1948 she was used as a gunnery practice target.
Unable to be sunk by the ships using her as a target, she finally went down having been hit by an aerial torpedo on 31 July 1948.

Dr. James Delgado, SEARCH’s Senior Vice President and lead maritime archaeologist on the mission, said:
“Nevada is an iconic ship that speaks to American resilience and stubbornness.
Rising from its watery grave after being sunk at Pearl Harbor, it survived torpedoes, bombs, shells and two atomic blasts.
The physical reality of the ship, resting in the darkness of the great museum of the sea, reminds us not only of past events, but of those who took up the challenge of defending the United States in two global wars.
This is why we do ocean exploration to seek out these powerful connections to the past.”

James Pochurek, SEARCH’s President, said:
“We are proud to have participated in this historic mission, which provides a tangible example of how technology can magnify the potential for discovery.
Working with Ocean Infinity, the possibilities are limitless.
The discovery of the USS Nevada is another reminder of the powerful human stories lying beneath the waves waiting to be re-told.”

Shawntel Johnson, Director of Search and Recovery at Ocean Infinity, said:
“It has been a pleasure to work with the SEARCH team on this historically significant project.
Our partnership has brought together a compliment of marine expertise through their extensive experience in marine archaeology and Ocean Infinity’s leading, technology driven, search capabilities.
We look forward to future collaborations between our companies.
We would also like to recognize and say thank you to our crews offshore who have remained dedicated and committed through these uncertain times.
We continue to value the work they do and the personal sacrifices they are making to keep us operational.
It is our hope that by sharing the USS Nevada’s story that it not only honors those who served in the Navy and fulfils an important educational role, but that in these challenging times it also serves as a symbol of perseverance and courage.”

Retired Rear Admiral Samuel Cox, Director of the Naval History and Heritage Command, said:
“We are greatly appreciative to Ocean Infinity and Search Inc.
in relocating and providing information on an extremely historic vestige of our nation’s past.
Nevada is an unambiguous reminder of our Navy’s heritage of resilience.
Nevada has a proud place in Navy’s history — commissioned in 1916, she served in both World Wars, and was present at the Pearl Harbor attacks in 1941; the only battleship to get underway after the attack.
During the attack, the ship and crew sustained at least six, and possibly, as many as ten bomb hits and one torpedo hit, but remained in the fight.
With our Sailors quick thinking, the crew grounded the ship, preventing her from sinking.
The ship was repaired and immediately returned to the fight, proving the resiliency and toughness of our Sailors then, as are today.
She went on to participate in numerous campaigns, earning a total seven battle stars for her actions during WWII.
USS Nevada serves a reminder that our Sailors have a long, terrific tradition; her fighting spirit proved the U.S.
Navy remains tough in difficult times.
When the circumstances appear to be at their worst, our Navy remains at their best.”

USS Nevada, like other ships at Bikini, was a floating platform for military equipment and instruments designed to see what the atomic bomb would do to them.

One of four tanks placed on Nevada, this is either a Chaffee or Pershing tank that survived a 23-kiloton surface blast and a 20-kiloton underwater blast, and remained on Nevada until the ship was sunk off Hawai’i on July 31, 1948.

[Photo courtesy of Ocean Infinity/SEARCH, Inc.]

Links :

• Maritime Executive : Ocean infinity finds famed battleship USS Nevada

Explorers can take Titanic’s Marconi telegraph, cutting into wreck for first time

An arrow points to the “silent room” in the bow section of the Titanic,

where the Marconi radio is located.

(RMS Titanic Inc. court filing)

From WP by Rachel Weiner

For the first time in the 108 years since the Titanic sank to the bottom of the ocean, causing the deaths of more than 1,500 people, explorers are set to cut into the ship and remove a piece.

Their target is the wireless Marconi telegraph, one of the first of its kind, which the doomed ocean liner used to contact a nearby ship for aid.

A federal judge in Virginia approved the expedition Monday, calling it “a unique opportunity to recover an artifact that will contribute to the legacy left by the indelible loss of the Titanic.”

Because of a backlog of personal messages, the wireless operators had ignored ice warnings from other ships.
Banal good wishes soon gave way to increasingly desperate calls for help.
Operator Jack Phillips died after refusing to leave his flooded post.

“He was a brave man,” his fellow wireless operator told the New York Times a few days later.
“I will never live to forget the work of Phillips for the last awful 15 minutes.”

The company R.M.S. Titanic (RMST) still must get a funding plan approved by the court, a prospect made more complicated by the coronavirus pandemic.
It plans to launch the expedition this summer, using underwater robots to carefully detach the Marconi and its components from the ship.

“If recovered, it is conceivable that it could be restored to operable condition,” RMST said in one filing.
“Titanic’s radio — Titanic’s voice — could once again be heard, now and forever.”

The recovery project has been vociferously opposed by the National Oceanic and Atmospheric Administration, whose representatives argued in court that the Titanic, sunk about 370 miles off the coast of Newfoundland, should be respected as a grave rather than mined as a museum supply.

At its heart, the years-long legal dispute is an emotional one.
Who can claim the Titanic?
Should the public have the right to see as many of its treasures as possible, from the comfort of a Las Vegas casino or a Florida interactive museum?
Or should the remains of the victims be left in peace, their effects seen only by scientists underwater?

The Titanic leaves Southampton, England, on April 10, 1912.

(Associated Press)

“Titanic has always been a singular case of passionate, strongly held opinions,” said maritime archaeologist James Delgado, who helped map the ship on a 2010 expedition.
“For some it’s a memorial, for some it’s a historic site, for some it’s where a family member died.
For others it’s an ultimate tourist destination, and for others it’s a business opportunity.
How you balance all of that is very difficult.”

Because of the intricacies of maritime law, the federal court in Norfolk has been tasked with striking that balance.
But the Titanic is also a fulcrum for a broader battle over who controls the seas — companies and courts, or governments.

It’s a fight that has gotten heated, and personal.
RMST’s attorneys once compared a British archaeological group to the Taliban.
One marine archaeologist working for the company, John Broadwater, quit the project just days before the ruling.
Emails show former colleagues at NOAA refused to talk to him about the Titanic once he joined.
“I think it would make a wonderful exhibit, but it's definitely a complicated situation,” Broadwater said in an interview.

The government position is that the Titanic site should be protected and preserved where it is, while the Marconi is “standard off-the-shelf” equipment of the time that has little value outside the ship.

“Just like a lion is much better appreciated in the wilds of the African savannahs than it is stuffed in a museum, so too does the Marconi apparatus best tell its story and share its value where it is,” the National Park Service’s Submerged Resources Center chief wrote to the court.

The company responds that NOAA is hardly in a position to act as gatekeeper, having approved an expedition group last year that accidentally jostled the ship’s rail.
It pledges to use underwater robots to carefully extract the Marconi, only if deemed safe.

First Titanic expedition in 14 years captures ongoing disintegration

Footage released by Atlantic Productions in 2019 shows the level of the Titanic’s deterioration since the last expedition to the wreck 14 years ago.

“RMST is left to wonder why has NOAA gone to such great lengths to raise scores of questions about the competency, plans and equipment of a team that has actually led or participated in numerous successful expeditions to the Titanic, and the recovery of thousands of artifacts from the ship since 1987, when it does not ask the same questions of other rookie expeditioners with no such track record,” the company wrote in a recent filing.

Moreover, it argued that the Titanic is rapidly deteriorating without any intervention; the ceiling of the room that holds the Marconi may well collapse soon.

“There are places where you can stick your finger through that rooftop,” oceanographer and RMST consultant David Gallo testified at one hearing.

Senior Judge Rebecca Beach Smith agreed, calling photographs of the deterioration “poignant.”

In the past thousand years, the basic principles of maritime law have not changed, and one is that whoever retrieves a wreck gets a reward.
Where the wreckage is brought determines control.

It’s a rule meant to encourage clearing the sea of debris and restoring property to rightful owners.
Historic wrecks that are expected to languish underwater forever are an awkward fit.
But the same principles apply.

Within two years of the Titanic’s 1985 discovery by oceanographers, a Connecticut car salesman named George Tulloch had created RMST, made an expedition to the site and wrangled salvage rights by bringing a wine decanter into a Norfolk federal courtroom.
The Virginia court became the arbiter of future exploration and recovery.

A salvor who declines to donate their winnings to the poor no longer risks “the curse and malediction of our mother the holy church,” as the law was written in the 1100s.
But RMST is legally bound to act with public benefit in mind.
The company cannot break up its collection of Titanic artifacts, and it needs permission from the court to touch or take anything off the ship.
The only treasure the company can sell is coal (available online as an hourglass, snow globe or key ring).

The Titanic sank near Newfoundland.

(Atlantic Productions)

Personal effects recovered from the Titanic.

(Angie Wang/Associated Press)

RMST retrieved thousands of items from the field of debris around the ship — bronze whistles, leather luggage — and set up a touring exhibition.
It advertised cruises to the wreck with Burt Reynolds and Buzz Aldrin.

Outside critics called it crass hucksterism; some at the company thought it was being too respectful.
In a coup, when Tulloch was celebrating Thanksgiving in 1999, board members changed the locks on his office, according to news media reports at the time.
The new leaders declared plans to scour the ship for $300 million in missing diamonds.

“We know there’s an awful lot of money under the water,” one shareholder told the Baltimore Sun.

Alarmed, the court brought in NOAA as a “friend of the court,” one that has viewed the company skeptically ever since.

“It is difficult to envision that, once out in the North Atlantic, contrary voices advocating caution (if any are allowed to be present) will be heeded or heard,” NOAA officials wrote recently.

The company was bought in bankruptcy in 2018.
RMST lawyer David Concannon declined to comment Tuesday.
In a February interview, well before the judge’s decision, he called the former owners “dishonest hooligans” but said NOAA can’t recognize that the project is now in responsible hands.
He and several others who quit in the coup have since returned.
“They’re different,” he said.
“They’re taking a measured, considered approach to this.”

Harold Bride, a surviving wireless operator, is seen in May 1912.

(Library of Congress)

Gallo himself testified in court that he used to consider the company’s work “grave robbery” but has since changed his views.

“It wasn’t until I wandered into one of the exhibits with a friend of mine, we wandered in, and it just transformed my feeling about the whole episode, the whole Titanic issue,” he said.
“I was able to watch families, children, and approach these artifacts from the front door.
. . . It was an experience for them.”

An international treaty giving the government control over the Titanic was tucked into a 2018 spending bill but has never been ratified, leaving NOAA and RMST at odds over whether the company needs permission to visit the site and what power the agency has in the court case.

NOAA, RMST argues, wants to wrest control of shipwrecks away from courts and companies.

“NOAA seeks to jettison the law of the sea, developed over centuries,” the company’s lawyers wrote.

The judge sidestepped that question in her ruling.

“The Marconi device has significant historical, educational, scientific, and cultural value,” she wrote, and “face[s] significant threat of permanent loss.”

Links :

• WP : Titanic’s wreckage was hit by a submarine
• GeoGarage blog : Titanic sank due to enormous uncontrollable ... / Titanic sinks in real time / New images of Titanic wreck revealed / Vow to “virtually raise the Titanic”: new 3-D ... / New expedition to Titanic site will create 3D ... / Titanic threat: why do ships still hit icebergs? / Challenge to Titanic sinking theory - GeoGarage blog / Titanic items to be sold 100 years after sinking / Robert Ballard, discoverer of the Titanic is ... / First map of entire Titanic wreck site sheds ...

Ancient vs modern nautical maps

Ancient nautical map of Ouessant island (France) from Beautemps-Beaupré hydrographer (1822)

Gallica BNF /courtesy of Laurent Gontier

 modern nautical chart (SHOM) overlaid upon Google Maps in the GeoGarage platform

Research expedition to map Scottish seabed

The HyBIS Robotic Underwater Vehicle collected more than 75 hours of high-definition video data.

From Hydro

Slow recovery of coral reef shows impact of bottom trawling

Newly developed 3D imaging technology has allowed scientists to map Darwin Mounds, a unique area of cold-water coral reefs off the coast of Scotland, to see whether it has recovered since being declared a Marine Protected Area sixteen years ago.

 Darwin mounts in the GeoGarage platform (UKHO nautical chart)

The images show that in areas of the Darwin Mounds that had been heavily trawled, coral growth is still very sparse, and there has been no real recolonization.
However, healthy coral growth was found in parts that had only been minimally damaged by bottom trawling, indicating that marine conservation measures are most effective when they are put in place before damage occurs.
The team also discovered a large amount of plastic waste snagged on the coral.

Dr Veerle Huvenne from the National Oceanography Centre (NOC), and chief scientist of the expedition that made these discoveries, said, “This proves once again that ecosystem recovery in the deep sea is very slow, and that it is better to put protective measures in place before damage occurs.
However, encouragingly, settlement experiments deployed in 2011 and recovered on this expedition indicate that new coral larvae can indeed settle in the area.”

 Ship Discovery

High-Definition Video Data

These findings are the result of a three-week research expedition in the North-East Atlantic on board the Royal Research Ship Discovery, home port Southampton, UK.
This expedition was a collaboration between the NOC, the University of Southampton, the Joint Nature Conservation Committee, the University of Edinburgh, University College Cork and the Scottish Association for Marine Science.
Using the latest in marine and robotic technology, the team collected data to evaluate the status of the Darwin Mounds, a series of cold-water coral reefs lying at water depths of 1,000 metres, once heavily impacted by bottom trawling.

BioCam, a combined stereo camera and laser scanner built by the University of Southampton under NERC’s Oceanids Programme, was used to create multi-hectare 3D visual reconstructions of the seabed.

This expedition saw the first deployment of a newly developed 3D imaging system called BioCam, a combined stereo camera and laser scanner built by the University of Southampton under NERC’s Oceanids Programme, which was used to create multi-hectare 3D visual reconstructions of the seabed.
Mounted on Autosub6000, a robot sub developed and operated by the NOC, the system successfully mapped more than 50 hectares of seabed in less than 48 hours at photographic resolution.

Together with an extensive series of samples, and more than 75 hours of high-definition video data collected by the HyBIS Robotic Underwater Vehicle, the BioCam images provided evidence of healthy coral growth in locations that previously had seen only a minimal impact from bottom trawling.

 Autosub 6000

Cold-water Reefs

Cold-water corals are coral species that can live without light, and the reefs they build are important habitats for a wide variety of deep-sea life, including commercially important fish.
The Darwin Mounds have been protected from bottom contact fisheries since 2003, and were last studied in 2011, at which point they had not yet recovered from the fishing impacts.

Dr Veerle Huvenne continued, “It was very encouraging to see the recruitment of new coral polyps on the settlement experiments, although this has not yet translated into widespread new coral growth in the heavily impacted areas.
We will continue to monitor the site over the coming years to learn more about how deep-sea ecosystems recover after disturbance.”

“Working with the new BioCam system gave us an unprecedented insight into the spatial pattern of the coral growth.
It also showed us how the marine animals are living with and around the coral, and it even provided us with unexpected discoveries, such as a complete whale skeleton that we had no idea was on the seabed in the area.”

Dr Blair Thornton, co-chief scientist and leader of the BioCam team said, “The multi-hectare scale maps generated by BioCam highlight a wide range of patterns in the spatial distribution of coral and the ecology at this site.
These range from the fine, metre-scale patterns seen in video surveys, to much larger patterns in the distribution of live coral over several hundreds of metres.
The data will help scientists to identify these and to measure the distribution of live coral in this area.”

 Waveglider

Large amount of made-made litter

“The fact that BioCam was able to collect data that is useful for scientific monitoring on its first deployment is a tribute to the hard work that went into preparations for this expedition from the teams at the University of Southampton, the MARS team at the NOC, local industry partners and the captain and crew of the RRS Discovery.
We are looking forward to its next deployment.” Unfortunately, the imagery also demonstrated the presence of a large amount of man-made litter.
The area is characterized by strong tidal currents, and coral colonies form natural obstacles on which plastic debris can easily snag.

Hayley Hinchen from the Joint Nature Conservation Committee said, “It has been fascinating to see first-hand the coral mounds in the area, some of which are thriving and others which are struggling to recover.
This survey has confirmed that, even after more than 15 years of fisheries closures, the impacts of bottom trawling are still evident, and some newer pressures seem to be growing.
The level of litter that we observed across the site is quite shocking, and we still don’t know how this is affecting the seabed communities we’ve seen over the last three weeks.

“The wealth of data collected on this expedition will allow us to assess the current status of the habitats and species in the Darwin Mounds both at the small and large scale, and to define how it has changed over time.
The amazing 3D imagery from the BioCam system allows us to investigate huge areas of the seabed at millimetre-scale resolution – a tool that could really support marine monitoring and conservation efforts in the future”, Hinchen adds.

In their final blog post, two members of the expedition, Loic Van Audenhaege and Larissa Macedo, wrote, “Reef-forming cold-water corals and many sponges require specific environmental conditions for settlement, such as the presence of a hard substrate, which remains a rare feature of the seabed.
In the Darwin Mounds area, our dives allowed us to observe that sand and mud make up the primary substrate of the seafloor, except on the mounds themselves.”

They continued, “Reef-forming cold-water corals cannot grow on a soft substrate.
This was well-observed in our previous blog post as new cold-water corals were growing on an eight-year-old buoy, but none were observed growing on the surrounding seabed.
While many organisms can sustain themselves in a soft-substrate environment, the apparent biodiversity remains low, compared to what we can see from the pictures of the coral reefs.
However, it would be foolish to state that this type of habitat is not biologically interesting.
Photographs have limitations in terms of showing the full variety of forms in which life can occur.
For instance, as revealed by the box core operations, many tiny organisms thrive in the sediment and they may encompass an equally important part of the life at the Darwin Mounds site.”

Further detailed analysis of the imagery and samples will be necessary to fully evaluate the changes in biodiversity and communities of marine animals in the area since 2011.
This work is part of the CLASS programme (Climate Linked Atlantic Sector Science), which aims to increase our understanding of how the ocean will evolve under a changing climate and increased human exploitation, with the objective of supporting sustainable marine management.
The BioCam project is funded by the NERC’s Oceanids Programme.

About the NOC
The NOC is the UK’s primary centre for providing national capability for oceanographic sciences.
Our vision is to be one of the world’s top three oceanographic research institutions, leading the way in the advancement of knowledge and understanding of our oceans.
The institute provides the UK with the national capability needed to be a top global player and to lead and participate in international cooperation.
The NOC undertakes research in large-scale oceanography and ocean measurement technology innovation.
It works with government and business to turn great science and technology into advice and applications.
The NOC supports the UK science community, based in universities and smaller research institutes, with scientific facilities, research infrastructure and irreplaceable data assets – enabling the UK to harness the full power and diversity of its scientific talent in ocean science.

Links :

• Effectiveness of a deep-sea cold-water coral Marine Protected Area, following eight years of fisheries closure

US (NOAA) layer update in the GeoGarage platform

5 nautical raster charts updated

see GeoGarage news