Wednesday, October 24, 2018

This fleet of underwater robots will help citizen scientists make the case for ocean conservation


From FastCompany by Ben Paynter

OpenROV’s cheap robots help people explore their local waterways, and National Geographic is helping get them to more people so they can map their discoveries.


Since David Lang cofounded OpenROV, a low-cost underwater drone company, in 2012, thousands of citizen scientists and explorers have used the bots to explore things like starfish deaths in the Pacific Northwest, or where along the coast of Mexico Nassau grouper tended to spawn.
That information launched bigger efforts to study, document, and ultimately try to protect those species and the places they live.

National Geographic liked idea so much they’re expanding it.
Earlier this month, the company, in partnership with OpenROV and James Cameron’s Avatar Alliance Foundation announced the launch of the Science Exploration Education Initiative to donate 1,000 Trident drones to nonprofits, schools, and activists interested in documenting their adventures on Open Explorer, an online field journal that Lang also helped design.
Open Explorer publicly maps where each project is located and lets groups post updates about observations there.
Trident drones can dive 100 meters deep while streaming video.
The $1,5000 devices are typically piloted through a video game-style controller designed to fit around an Android tablet.
“We have always been idealists in wanting to use technology to really help connect people to the natural world,” says Lang, who considers the ocean a place that most people don’t really understand or even know how to engage with.
“[We’re] doing that not with a lecture on what’s important, but by giving people the thrill of exploration,” he adds.


Lang and his friend Eric Stackpole built OpenROV’s first prototypes in a garage and raised money through Kickstarter: 1,800 people contributed nearly $1 million.
The duo set up Open Explorer in 2014 after another crucial insight: Along with opening access to a new frontier, they felt obligated to help guide how their new tools might be best used.
“The robots are key to getting people to find these places, but the other part of it was giving people a place to tell these stories of adventure and exploration and citizen science,” he says.

Lang gave a TEDx talk in Berkeley, California, to coincide with SEE’s launch.
In it, he pointed out that oceanic conservation efforts are nearly 100 years behind the land-based ones that lead to the creation of national parks.
But remote exploration tools that highlight challenges of starfish and grouper (among many other things) can certainly make a good case for acting more quickly now.


OpenROV community member Dominik Fretz took a Trident beta unit out to Isla Guadalupe, Mexico for testing. It's safe to say this drone passed the reliability test with flying colors...

SEE’s philanthropic angle makes underwater drones affordable and accessible to everyone.
That aligns with an ideal that Lang coined and is trying to popularize called “New Deal Philanthropy.”
As he explains in a recent post on Medium: “New Deal Philanthropy isn’t about creating more government programs, a new social safety net, or adding regulation. It’s about being more ambitious with regards to creating meaningful work for everyone.”
Such work can be accomplished through “foundations and companies using technology-based platforms to amplify the important work being done by individuals and communities.”

Other backers of the project include Rolex, the Gordon & Betty Moore Foundation, and OceanX.
But National Geographic is already thinking bigger.
Earlier this year, it acquired Open Explorer for an undisclosed sum.
It’s since deepened the platform’s content across many more terrains–categories include air, land, sea, urban, and backyard missions (along with historical feats featuring archived photos and videos).
People interested in applying for the initiative should visit SEE’s homepage, sign up to start an expedition, and then share more about how they’ll use the Trident.
Several dozen groups have already received robots and are chronicling their efforts.

“It’s fine to buy a robot and to have a robot, but what we’re really trying to do is give people the tools to make their life more interesting,” Lang says.
“We’re building tools to empower those people to ask better questions and to get right up to the front lines of discovery.” 

Links :

Tuesday, October 23, 2018

I’ve seen the Antarctic’s untouched beauty. There's still time to protect it

Greenpeace ship the Arctic Sunrise in Charlotte Bay, Antarctic peninsula.
Photograph: Christian Åslund/Greenpeace

From The Guardian by Javier Bardem, Oscar-winning actor and an Antarctic ambassador for Greenpeace

The ocean is threatened by climate change, pollution and fishing.
I urge world leaders to agree to establish a sanctuary


I thought it would be cold.
Not just cold, but colder than anything I had experienced in my life.
I had visions of bedraggled explorers in blizzards with ice-covered beards.

But standing there, in the bright Antarctic sun, watching creaking blue icebergs, penguins bursting in and out of the water, I felt utterly content in this glistening wilderness.

A perfectly formed iceberg pictured soon after it broke away from the Larsen C ice shelf
(Picture: Nasa / see BBC)

What I hadn’t thought about was the dark.
And not the dark of night – although as a European, that brought a dazzling new astronomy of the southern hemisphere to me – but the dark of the deep, icy, ocean depths.
I was going almost half a kilometre down to the Antarctic seafloor.


Antarctica MPAs

It was back in January of this year, and I had joined a Greenpeace research expedition as part of a campaign to create a vast Antarctic ocean sanctuary.
At 1.8m square kilometres, it would be five times the size of Germany.
If it’s created, which it could be when governments meet in the next few weeks, it would be the largest protected area anywhere on Earth.
I am one of two million people who want it to happen.

A fracture in the sea ice that is partially refrozen and continuing to re-freeze, known as a lead (Picture: NASA)

Scientists on the ship were using tiny submersibles to go where humans had never been before to explore ecosystems we know so little about: deep habitats they had been looking at on screens all their working lives but had never seen with their own eyes.
The excitement was more arresting than the cold of the Antarctic summer.

So there I was, descending, in a small, two-person submarine to the frontiers of human knowledge.
The light faded, and the sea around us turned a heavy blue.
As we sank to hundreds of metres below the surface, I was surrounded by a thick blackness.
It was a colour that I had no idea the ocean could turn.
Pitch black.

Chinstrap penguins at Orne harbour in the Antarctic.
Photograph: Christian Åslund/Greenpeace

A torch at the front of the submarine shone like a night-light for a child afraid of the dark.
It showed the way to the seabed.

The sight as it came into view was staggering.
Out of the dark and freezing depths emerged a moving, crawling, vibrant mass of life.

The temperature is so low that vegetation barely survives down here.
Nearly everything is an animal: bizarre and ghostly icefish that are semi-transparent; sea spiders that look like something out of a science-fiction film; colourful, tendrilled, feather stars, basket stars, corals, sponges.

I’m told that more people have been to the moon than have been to the bottom of the Antarctic ocean.
Maybe that’s apocryphal, but it certainly feels like it.
We know precious little about this alien environment, which is why it is so crucial to protect it before it is too late.

Emerging back into the light at the surface, the bubbles of the submarine hull clearing, it was like waking from a dream, the intangible creatures of the abyss left far behind.

I had truly seen the light and the dark of the Antarctic.
At its surface, penguin colonies stretch for miles on snow-capped islands, with millions of breeding pairs across the region, raising their chicks in this inhospitable environment.
Enormous whales surface all around, feeding on huge pink clouds of the small shrimp-like krill, which nearly all wildlife here relies on.
Fur seals and elephant seals lounge on drifting blocks of ice.
While below, another world goes on existing in dark vitality.

Underwater view of the submarine Little Planet, part of the Greenpeace expedition.
Photograph: Greenpeace

So often, we lament the destruction of the environment once it has taken place.
And it is true that wildlife in the Antarctic is facing threats from climate change, pollution and industrial fishing.
But this area still remains one of the least-touched regions on the planet.

Right now, we have an opportunity to protect this place.
The governments responsible for conservation of the Antarctic’s waters meet in Hobart, Australia, in the second half of October.
What better conservation of the Antarctic ocean could there be than the creation of the largest protected area on Earth at its heart, in the Weddell sea.
It would put the area off-limits to future human activity, protect wildlife such as penguins, seals and whales, and help to tackle climate change.

The pizza berg in the Weddell Sea with grease ice forming (Picture: Nasa)

I am proud to stand as one person in a movement of more than two million that has come together this year to demand world leaders protect the Antarctic.

Most of these people will never visit the Antarctic, but their passion for protecting it inspires me.
Across the world, people have written to their politicians; they have encouraged their friends and family to take action; they have dressed up as penguins and danced on ice to raise awareness from the streets of Buenos Aires to Beijing; they have installed penguin sculptures from Johannesburg to Seoul.
This is a global movement for a region that belongs to us all.


 The mass of the Antarctic ice sheet has changed over the last several years.
Research based on observations from NASA’s twin NASA/German Aerospace Center’s twin Gravity Recovery and Climate Experiment (GRACE) satellites indicates that between 2002 and 2016, Antarctica shed approximately 125 gigatons of ice per year, causing global sea level to rise by 0.35 millimeters per year.
These images, created with GRACE data, show changes in Antarctic ice mass since 2002.
Orange and red shades indicate areas that lost ice mass, while light blue shades indicate areas that gained ice mass.
White indicates areas where there has been very little or no change in ice mass since 2002.
In general, areas near the center of Antarctica experienced small amounts of positive or negative change, while the West Antarctic Ice Sheet experienced a significant ice mass loss (dark red) over the fourteen-year period.
Floating ice shelves whose mass GRACE doesn't measure are colored gray.

Now, as governments prepare to meet at the Antarctic ocean commission there are millions of eyes watching them and urging them to act.
To secure the Antarctic for future generations.
To allow its abundance of wildlife to flourish and its migratory species to thrive between the world’s oceans.
To help create healthy oceans that contribute to global food security.
To preserve the Antarctic ocean’s functions as one of the world’s largest carbon stores.
Because, truly, what happens in the Antarctic affects us all.


Links :

Monday, October 22, 2018

Rising seas threaten iconic Mediterranean sites

Venice, one of the cities most at risk, has already installed submerged floodgates aimed at combating flooding, but it’s one of the few to take such preventative action
(Jenny Kim/Public domain)

From Scientific American by Chelsea Harvey

The canals of Venice and an ancient Phoenician city are among the historic sites imperiled by sea level rise and coastal erosion


Climate change is already threatening some of the Mediterranean’s most treasured historical sites, from the iconic Venice canals to the ancient Phoenician city of Tyre.

A jarring new study, published yesterday in the journal Nature Communications, found that more than 90 percent of the region’s World Heritage sites are at risk now from sea-level rise and coastal erosion.

By the end of the century, 47 of the Mediterranean’s 49 sites—and some of the oldest remaining markers of the history of human civilization—will be in jeopardy.

The research highlights the fact that climate change isn’t just a problem for the future and makes the case for more immediate adaptation measures to protect these vulnerable areas.
In some high-risk cases, the scientists suggest governments may even want to consider the possibility of relocating moveable World Heritage sites.

 This photo shows the old town of Dubrovnik from a hill above the city.
(Darko Bandic/AP)

The World Heritage, a project of the U.N. Educational, Scientific and Cultural Organization (UNESCO), identifies locations around the world that have great cultural or international significance.
They are often areas that stand as testaments to outstanding architectural or technological innovation, artistic achievement, or cultural traditions; that document significant phases in human history; or that possess great natural beauty or ecological importance.

Once a location is designated a World Heritage site, it’s considered a protected area by the United Nations—but its management is up to the nations in which it’s located.

 UNESCO cultural World Heritage sites located in the Mediterranean Low Elevation Coastal Zone (LECZ). All sites are shown with their official UNESCO ID and name.
The map also shows extreme sea levels per coastal segment based on the Mediterranean Coastal Database under the high-end sea-level rise scenario in 2100

 Flood risk index at each World Heritage site under current and future conditions.
a In 2000 and b in 2100 under the high-end sea-level rise scenario

In the new study, the researchers, led by Lena Reimann of Kiel University in Germany, assessed the risk of flooding and coastal erosion at all 49 Mediterranean World Heritage sites under a variety of potential future climate scenarios through 2100.

When considering flooding threats, they evaluated sites based on their risk of experiencing a 100-year flood—that is, a flooding event severe enough that it has only a 1 percent chance of occurring in any given year.
Erosion risks were primarily based on a site’s distance from the coastline.

The scientists found that almost all the sites will be at risk, to some extent, from one threat or the other.

The most vulnerable sites to sea-level rise include picturesque Venice, with its network of intersecting canals, as well as the Italian city of Ferrara, a lasting testament to Renaissance culture and urban planning, and the ancient Basilica in the Italian city of Aquileia.

The site most at risk from coastal erosion is the Lebanese city of Tyre, an ancient Phoenician metropolis and cultural hub, which sits on a tiny peninsula jutting directly into the Mediterranean Sea.

Most sites, though, are at risk from both flooding and erosion.
And most sites facing risks in the future are in trouble now.
Those risks will continue to rise throughout the end of the century, particularly under the more severe climate scenarios.

The research underscores several major points, the scientists say.
Large-scale global climate action will be necessary to avoid extreme climate scenarios and prevent as much additional risk to the World Heritage sites as possible.

But immediate adaptation measures—those intended to protect coastal areas from the ongoing influence of sea-level rise and erosion—may also be called for in many locations.

Some of the areas on the list have already begun designing their own adaptation strategies.
The Italian government began work on a system of retractable floodgates in the Venetian Lagoon more than a decade ago.
It’s designed to protect Venice from the impact of storm surge.
But whether it will succeed is another question: The project has been fraught with delays and has yet to be completed.

As time ticks on, the need for concrete action may only become more urgent.
And it’s not just the Mediterranean whose history is at risk of being washed away.
UNESCO began preparing reports and case studies on climate change and global World Heritage sites as far back as 2006 and published a guide for adaptation in 2014.
Other studies have also focused on the effects of climate change on culturally important sites around the world.

One 2014 study in Environmental Research Letters suggests that about 19 percent of World Heritage sites around the world would be threatened by sea-level rise with a temperature increase of 3 degrees Celsius—the warming that might be expected under the current commitments to the Paris climate agreement.
That’s compared with 6 percent with no additional warming.


Other research has taken a more local approach not necessarily limited to UNESCO sites.
A 2014 report published by the Union of Concerned Scientists compiled a collection of case studies focusing on how U.S. national landmarks—including sites such as Ellis Island and Cape Canaveral—might be affected by climate change impacts including sea-level rise and an increase in wildfires.

“As the impacts of climate change continue, we must make hard choices now and take urgent steps to protect these sites and reduce the risks,” the report said.

Links :

Sunday, October 21, 2018

Multibeam & laser : River Ouse Survey

Multibeam and laser survey of the River Ouse through York city centre.
Data acquired using Ultrabeam's Ultra-1 USV.
 York is a historic walled city in North Yorkshire, England.

Saturday, October 20, 2018

An illustrated homage to the Oceans Atlas

The graphic artist Kristen Radtke recalls the influence that a book about the seas had on her young imagination (from NYTimes)