Monday, December 24, 2018

Wall Street trader reaches bottom of Atlantic in bid to conquer five oceans

Victor Vescovo says: ‘It felt great to get to the true bottom of the Atlantic Ocean for the first time in history.’ Photograph: Richard Varcoe - Special Project Six
 
From The Guardian by Rupert Neate

A multimillionaire Wall Street trader has become the first person to reach the deepest point of the Atlantic Ocean as part of an extreme mission to dive to the depths of the world’s five oceans.

Victor Vescovo, 53, the founder of US private equity firm Insight Equity Holdings, on Friday piloted a $48m (£38m) submarine 8,376 metres (almost five miles) beneath the ocean surface to the bottom of the Puerto Rico trench.

“It felt great to get to the true bottom of the Atlantic Ocean for the first time in history,” Vescovo said.
“Our depth of ignorance about the oceans is quite dramatic. Four of the oceans have never even had a human being go to their bottom. In fact, we don’t even know with great certainty where the bottom of the four are.”

Vescovo has already climbed to the highest peak of each of the world’s seven continents and trekked to both the north and south poles.
But he is not alone in that feat.
At least 62 other people have also completed the so-called explorers’ grand slam.

The project is due to commence later this week with a dive down 8,648m to the bottom of the Atlantic Ocean’s Puerto Rico Trench and all going well it will continue throughout 2019.
Later journeys in the two-person submersible will descend to the South Sandwich Trench (8,428m/27,651ft below the surface of the Southern Ocean); the Java Trench in the Indian Ocean (7,725m/25,344ft); Marina Trench/Challenger Deep in the Pacific Ocean (10,898m/35,755ft); and Malloy Deep in the Arctic Ocean (5,669m/18599ft).
Five Deeps Expedition

Desperate to prove himself as the world’s “ultimate explorer”, Vescovo set himself a fresh challenge: to dive to the deepest point of each of Earth’s five oceans.

He will now head to the South Sandwich trench in the Southern Ocean, about 100km east of the South Sandwich Islands.
That trench, 8,428 metres below the surface, is unnamed and Vescovo hopes his dive there in February will grant him naming rights.
Getting to the bottom of the ocean is not easy, or cheap.
The pressure is more than 16,000 psi (pounds per square inch) – more than 1,000 times the standard atmospheric pressure at sea level.
In order to withstand it safely, Vescovo ordered his specially built submarine at a cost of $48m.

 Victor Vescovo will now head to the South Sandwich trench in the Southern Ocean.
Photograph: Caladan Oceanic

The 11.2-ton Triton submarine, named Limiting Factor, has a 9cm-thick titanium hull built using advanced forging techniques and tested in Russia to conditions equivalent to 13,198 metres, or 20% greater than the ocean’s deepest point.

Vescovo is able to sit back and relax in the vessel’s leather armchairs as it descends to 10,950 metres in less than two-and-a-half hours.
Pilots can explore the ocean using four cameras or look out into the dark depths through three acrylic viewports.

Vescovo, who will be followed on his adventure by cameras from the Discovery Channel, said: “I’ve always loved a great physical and technical challenge and, like those currently attempting to push space technology to the limit, I thought it would be a great goal to push the absolute limits of marine technology.


After the Southern Ocean, Vescovo will dive 7,725 metres to the Java trench in the Indian Ocean.
The fourth dive will be the deepest – 10,925 metres to the Mariana trench, the deepest point in the world.

Twelve people have walked on the moon but only three have ventured to the Mariana trench’s Challenger Deep.
Two explorers – Don Walsh and Jacques Piccard – reached it in 1960 and the Titanic film director, James Cameron, went there in 2012.

The fifth dive will be in the near-freezing waters of the Molloy Deep in the Arctic Ocean.
“We sincerely hope to make history, both technically and scientifically, on this expedition,” Vescovo said.

From Atlantic Productions and coming soon to the Discovery Channel, Deep Planet follows The Five Deeps Expedition. 
This three-minute trailer follows the team during the final stages of testing of the Limiting Factor manned submersible that will journey to the deepest point in each of the world's five oceans.

He is travelling with Alan Jamieson, a marine biology lecturer at Newcastle University, who has embarked on 50 deep-sea exploration missions and hopes to make fresh discoveries about life at the very depth of the world’s oceans.

“Currently, we know more about the intricacies of the lunar surface than we do about the depths of our oceans,” Jamieson said.
“The discoveries made on this expedition promise a world of new scientific innovation in almost every area of biological, geological and oceanographic study.”

 The ship Pressure Drop will be the service vessel for the Five Deeps mission
The Limiting Factor will be transported from one remote location to another aboard a ship named Pressure Drop, which has been adapted especially for this mission. 

Vescovo has always been a high achiever.
He was in the top 5% of his MBA class at Harvard business school, picked up a master’s degree at the Massachusetts Institute of Technology and a double major degree in economics and political science from Stanford University.

He started mountain climbing in 1998 and last year became the 12th American to complete the explorers’ grand slam.
Only 17 people, including one woman and two Britons, have completed the “true” explorers’ grand slam to reach both the North and South Pole and climb the seven summits.
A further 46 people, including Vescovo, have completed the slightly easier “last degree” of the explorers’ grand slam, which requires travelling to within one degree of the poles and not to the exact point.


When all Vescovo’s dives – which will include additional trips to locations including a possible site of the MH370, the Malaysia Airlines flight that went missing in 2014 – are complete, the submarine and its support ship will be available for another super-rich adventurer to buy – for a cool $48.2m.

Links :

    Saturday, December 22, 2018

    Image of the week : an island disappears

    September 11, 2018

    October 13, 2018

    From NASA by Kasha Patel

    It’s not often that an island disappears off the map, but that’s just what happened in October 2018.
    A remote but ecologically important island was lost to the sea in the wake of one of the most intense hurricanes on record for the North Pacific.

    Around October 3, Hurricane Walaka passed the Hawaiian Islands, including an archipelago about 900 kilometers (550 miles) northwest of Honolulu known as the Papahānaumokuākea Marine National Monument.
    Strong surges from Walaka inundated the shallow islets, one of which has been almost completely reclaimed by the ocean.

    The Operational Land Imager on Landsat 8 captured these natural-color images of East Island on September 11 (left) and October 13, 2018 (right).
    The storm washed away the 11-acre strip of sand and gravel, and only two slivers of land have re-emerged since the hurricane struck.
    Storm surges also deposited sand and debris across Tern Island, which is northwest of East Island.

     Localization of East Island with the GeoGarage platform
    (satellite image from Google imagery still showing the island)

    East Island is part of the French Frigate Shoals, one of the most significant coral reef systems in Papahānaumokuākea.
    The archipelago formed millions of years ago when a deep-sea “hotspot” created underwater volcanoes, which eventually rose to the ocean’s surface to became islands.

    While East Island was uninhabited by people, it provided nesting grounds for the threatened Hawaiian green sea turtles and pupping grounds for endangered monk seals, of which there are only 1,400 in the world.
    Scientists believe many of the animals had already left the island before the hurricane hit because it was the end of turtle and seal breeding season.
    However, unhatched turtle nests were likely affected. Researchers must wait until next year to return to the islets for a more extensive survey of the impact on wildlife.

    In the meantime, a marine debris team worked within the Monument zone in early November to remove more than 160,000 pounds of lost or abandoned fishing nets and plastic that could endanger marine animals.

    East Island is not the first island to disappear from the French Frigate Shoals.
    Whale-Skate Islet was lost to erosion in the 1990s, while Trig Island eroded earlier in 2018—a common occurrence in sand-dominated ecosystems.
    Scientists believe the mammals adapted to the ecosystem changes at Whale-Skate and Trig by finding new breeding locations, so they expect the same to happen now that East Island is gone.

    Links :

    Friday, December 21, 2018

    Huge reserves protect underwater mountains, endangered sea life



    NGM maps
    source : Administracio de Parques Nacionales de Argentina

    From National Geographic by Sarah Gibbens

    Argentina's government has voted to create two new marine parks that cover an area the size of Hungary.

    TWO NEW MARINE parks that together make up an area the size of Hungary have been created in the South Atlantic Ocean.

    One is called Yaganes and is located just off the southern tip of Argentina—a spot nicknamed “the end of the world.”
    The other, Namuncurá-Burdwood Bank II, is in the South Atlantic. Together, they make up 37,000 square miles of marine protected areas (MPAs) teeming with sea creatures, many of which are classified as threatened species.




    Portions of these new MPAs have remained pristine by default of their remoteness, and the Argentine government’s decision to protect them ensures that the marine ecosystems will stay that way. Conservationists are hoping this move signals a shift toward stronger conservation measures in the country.
    Not only because the decision designates more protected territory, but also because it comes with a legal framework to enforce the new restrictions.

    “It's much more than creating two national parks,” says Sofia Heinonen, president of Fundación Flora y Fauna Argentina, an environmental group that led a campaign in favor of the new marine parks. “This also creates the basis for the next one.”

    Sea conservation timeline for Argentina

    Why is this part of the sea so special?

    Previously, Argentina's marine parks were managed by the same government department that manages its fisheries, which are open to commercial interests.
    This left little funding to stop illegal activity in the parks that could undermine bans on extractive activities like fishing there.
    An earlier Argentine MPA called Namuncurá-Burdwood Bank I, created in 2013, had weak oversight.
    A legal framework to manage the park wasn’t passed until 2015, and Argentina’s National Parks Administration didn’t gain control until 2017.

    At the same time, according to local media outlets, fishing pressure has increased immediately south of Argentina in recent years.
    So in an attempt to protect Argentina’s waters, the National Geographic Society partnered with the Forum for the Conservation of the Patagonian Sea and local governments to survey the region.
    The goal was to assess the health of the marine ecosystems known for their impressive biodiversity.

    “We wrote very comprehensive scientific reports that supported the immense ecological value of this area and the need for protection,” says Alex Muñoz, the leader of the Latin American arm of National Geographic's Pristine Seas program.
    And earlier this year, Fundación Flora y Fauna Argentina and the National Geographic Society received part of a record $1 billion donation made by the conservation-focused Wyss Foundation to groups working to create natural reserves like marine protected areas and national parks.

    Yaganes y Burdwood2 new MPAs

    During National Geographic’s recent exploration of Yaganes and Namuncurá-Burdwood Bank, researchers and photographers maneuvered cameras more than 6,000 feet below the surface.
    They found underwater mountain ranges and deep-sea canyons home to an impressive array of diversity. Many of the species identified can only be found in this part of the world.

    So, too, with marine mammals. Yaganes was once a lucrative spot for hunting whales—an activity that severely impacted southern right whale populations.
    But since this hunting activity ended in Argentina after the country joined the International Whaling Commission in 1960, populations have slowly begun to rebound.

    Reaching an ocean conservation goal


    With the creation of these two new marine protected areas, 8 percent of Argentina’s waters are now protected, bringing the country closer to its goal of protecting 10 percent of its national waters by 2020.

    MPAs are a popular tool used by governments to meet the United Nations’ larger goal of protecting 10 percent of the world’s oceans by 2020.
    By closing regions to activities like fishing, MPAs can allow fish stocks to recover, which then spill out to commercial areas.
    In a previous interview with National Geographic, former NOAA administrator Jane Lubchenco likened MPAs to a shot of vitamin C before the onset of a cold.

    A March study, partially supported by Pristine Seas, found that many declared protected areas around the globe are not effectively enforced.
    And even with countries’ self-reported conservation declarations, the U.N. is predicted to fall short of it goal.
    But countries like Argentina aren’t giving up.

    “Argentina is catching up on marine conservation,” Muñoz says.
    “Now it's becoming a world leader in world conservation.”

    Heinonen says her organization’s future conservation work will involve talks with Chile, a country that also shares close proximity to Antarctica.
    They hope to create joint protected areas in the South Atlantic Ocean.

    Links :

    Thursday, December 20, 2018