Wednesday, June 7, 2017

France & misc. (SHOM) update in the GeoGarage platform

All the nautical paper maps from the SHOM catalogue
(except 30 coastal charts originally from the Admiralty and figuring in the UK & misc. layer)
are right now included in the GeoGarage platform (France + international SHOM charts)

99 charts added (119 including insets) mainly for Portugal, Spain & Italy
in this last 2017 upgrade (v3) including all the international charts figuring in the SHOM catalogue
already published in v1 / v2 2017 (UK, Spain, Portugal, Italy, Croatia, Greece, African countries)
-> see GeoGarage news


Mediterranean sea coverage from Spain to Greece including Maghreb countries

America rules the waves. But for how long?


From Bloomberg by Tobin Harshaw

A Q-and-A with Admiral James Stavridis about China's fake islands, India's real rise and sea power in the 21st century.

China builds fake islands in the South China Sea. Russia fires missiles into Syria from the Mediterranean and Caspian Seas. North Korea launches ballistic missiles into the Sea of Japan.
The U.S. orders three -- three! -- aircraft carrier strike groups to the Western Pacific in response.
Houthi rebels shoot rockets at U.S. ships off Yemen. Pacific nations go on a submarine-buying binge. India and China start constructing their first homemade aircraft carriers.
Pirates return to the waters off East Africa.

You'd be forgiven for thinking that control of high seas is becoming more vital than any time since World War II.
Which makes it the perfect moment for an authoritative new book on the role of sea power in shaping human civilization across the globe and across the ages.

Into the breach steps James Stavridis, a retired four-star admiral and former supreme allied commander of the North Atlantic Treaty Organization.
His new book, "Sea Power: The History and Geopolitics of the World's Oceans,"is a breezy yet comprehensive overview of the topic, as well as a sort of sailor's log and meditation on the power of the Great Blue.
I decided a talk with Stavridis, now dean of the Fletcher School of Law and Diplomacy at Tufts University, could help put the rising tensions on the world's waterways into perspective.
Here is an edited transcript of our interview.

TH: Admiral Stavridis, before opening the book, I assumed it would be a technical treatise on naval strategy, a sort of 21st-century update of Alfred Thayer Mahan's epochal "Influence of Seapower Upon History."
Instead, it's a very personal, impressionistic book; we learn as much about the adventures of neophyte Midshipman James Stavridis in the 1970s as about the Battles of Salamis, Trafalgar and Midway.

JS: There will be other books, and I have in mind to expand on Mahan for the current age. But it took me 40 years to write about my life at sea, and I thought back on that and reflected on it in relation to today's world, with the return of great-power politics. I wanted to put the reader into the captain's chair.

Marine traffic in South China Sea

TH: You warn that the U.S. and China have to avoid the so-called Thucydides Trap, where miscalculation of an enemy's intentions can lead to an otherwise avoidable war. Given China's island-building and other aggressions, how can the U.S. and regional partners push back without pushing too far?

JS: First thing, China plays the long game. They are not concerned with 10 or even 50 years into the future. They are looking centuries ahead. We need to match that mindset. The Chinese feel that they will inevitably dominate Asia and play from a position of confidence. They don't lunge for the ball, they pull at all levers: economic, political, historical and military.
The appropriate response for the U.S. is to maintain itself as the pre-eminent Pacific power, not just militarily but through economic and geopolitical leadership. It is a region without a NATO, and the U.S. withdrawal from the Trans-Pacific Partnership was a giant miss for us. That makes it more vital to strengthen individual military relations with friendly nations.

TH: You’re a former military commander of NATO, which many Americans think of as a ground force. But as you point out, in the Cold War, the Baltic Sea and the GIUK Gap 1 were tense places. With Vladimir Putin getting very aggressive at sea as well as on land, what can the alliance do in response?

JS: Both the Baltic and Black Seas are inland lakes in Russia's eyes. NATO needs to deploy and conduct joint exercises repetitively; it can't just be the U.S. In the Baltic, operating with non-members -- the Finns and the Swedes -- as well as Denmark, Germany and Britain is incredibly important. Same thing in the Black Sea, with members Bulgaria, Romania and Turkey and non-members Georgia and Ukraine.
However, these are relatively small, contained waters, so the possibility of a dustup is high. We need to adhere closely to "incidents at sea" agreements with Russia and operate in ways that can deconflict. And we need to use our land-based air in conjunction with the ships, because the Russians will. The overall strategy, at sea and land, is to reassure allies that we will be there in a crisis and to keep Vladimir Putin from "leaning in" with hybrid war, as he did in Ukraine.

TH: How about in the Mediterranean?

JS: In terms of refugees, both from the war in Syria and from Libya, we are only treating the symptoms, all the effects of the so-called Arab Spring. Right now, the Jordanians, Lebanese and Turks, with European money, have opened respectable refugee camps. But if that becomes unsustainable, if the tens of millions of displaced people see an opportunity to cross to Europe, they will. NATO has 800-plus ships and a fundamental role in all this, but we can be insufficiently mindful that the Med is an ocean highway.

TH: You have a surprising prediction: that the 21st century will be more about the Indian Ocean and its appendages -- the Arabian Gulf and Red Sea -- than about the Pacific or Atlantic. How do you see this playing out, and what are the biggest opportunities and risks for the U.S. and its allies?

JS: The biggest opportunity in geopolitics right now is the rise of India. By mid-century, it will be more populous and younger than China. It is centrally located, on both the continent and the sea. The ocean also abuts Africa, the fastest-growing place in the world. Indonesia will be the fourth-largest nation.
We should be doing everything we can to partner with India. Yes, there is corruption and weak infrastructure. But it is a democracy and cohesive, and the elites speak English, plus a cultural affinity built by the British Raj.
As for the Gulf, oil may become less important as the world switches to sustainables and other forms of energy. But the geopolitics, the fraught relationship between Iran and the Sunni states, will continue to create tensions and challenges for us.


TH: All this means the U.S. ability to maintain a forward presence at sea will be further stretched. Our main tool for this has long been the aircraft carrier. Yet many people feel that the new Ford Class supercarriers are hugely vulnerable and no longer as important to projecting power. Do you disagree?

JS: I think that is exactly half right. I think they are more vulnerable than ever because offensive weapons are better than ever: submarines are quieter, cruise missiles are more accurate, there is a growing ability to target from space. And the limited range of the new F-35 fighter is problem. It will mean having to integrate long-range, land-based air with the tactical punch from the flight deck.
Yet the carrier strike group is still the premier flexible power-projection option. It can cover 700 to 750 miles a day. And the carriers are strongly protected by nuclear submarines and Arleigh Burke-class destroyers with Aegis missile-defense systems. If we went to war at sea, we would take some hits -- but I would still bet on the carrier.

TH: When you describe the famed entry of Commodore Perry into Tokyo Bay in 1853, you call it an early example of what we now call "soft power." That's not a concept the Trump administration has a lot of respect for. What are the main ways you feel the military, and the Navy in particular, could use soft power to effect today?

JS: In my career I had many opportunities to deploy aircraft carriers, but I felt the most effective were soft-power operations, and it’s the flexibility of maritime operations that made it work. Sending them, as well as our two hospital ships, the Comfort and Mercy, which can do hundreds of thousands of patient treatments on a single deployment, are the ultimate in disaster relief and humanitarian aid. For example, the carrier Ronald Reagan was the first foreign responder to the tidal wave and nuclear disaster at Fukushima, Japan, in 2011. That strike group provided electricity, refueling, medical care, etc. Same thing for the Indian Ocean in 2004, Haiti in 2010.
It's not just emergencies. Engineers from our large-deck amphibious ships can come ashore in poor nations and install wells, build clinics and schools. Sailors set up health facilities, visit orphanages, run sports clinics. The Navy can be a symbol of U.S. confidence and compassion.

TH: Last, one of your other big warnings is about environmental degradation -- both in terms of climate change and, more specifically, ocean pollution and destruction of fisheries etc. What needs to be done now to turn things around?

JS: Donald Trump's decision to pull the U.S. out of the Paris agreement is a huge blow. Voluntary, international cooperation on emissions control is the way forward, and now that is in question. There are a lot of international organizations that work on fisheries, scientific monitoring, deal with pollution and the like, but they are mostly under the United Nations umbrella. And strengthening them under Trump will be tougher.
In the U.S., we need better interagency cooperation: all cabinet-level and other organizations -- Treasury, Justice Department, Coast Guard -- working together to think through our regulatory regimes, share data, and reach a common understanding of how to go after lawbreakers. Oceans are the biggest crime scene in the world.
But above all, we need better public-private cooperation. You cannot solve this globally without working with the companies that move 95 percent of the world's good across the ocean highway. It would be like developing a cyber-defense strategy without talking to Microsoft or Google. People call the Amazon the "lungs of the earth," but it's really the oceans. And if we cannot count on sustainable oceans, our future is bleak.

Links :


Tuesday, June 6, 2017

The Larsen C Iceberg is on the brink of breaking off

The current location of the rift on Larsen C, as of May 31 2017.
Credit: Project MIDAS

From Climate Central by Brian Kahn

The saga of the Larsen C crack is about reach its stunning conclusion.
Scientists have watched a rift grow along one of Antarctica’s ice shelves for years.
Now it’s in the final days of cutting off a piece of ice that will be one of the largest icebergs ever recorded.
It’s the latest dreary news from the icy underbelly of the planet, which has seen warm air and water reshape the landscape in profound ways.

Ice flow velocities of Larsen C in February 2017 and April/May 2017, from ESA Sentinel-1 data.

The crack has spread 17 miles over the past six days, marking the biggest leap since January.
It’s also turned toward where the ice shelf ends and is within eight miles of making a clean break.
There’s not much standing in its way either.
“The rift has now fully breached the zone of soft ‘suture’ ice originating at the Cole Peninsula and there appears to be very little to prevent the iceberg from breaking away completely,” scientists monitoring the ice with Project MIDAS wrote on their blog.

 British Antarctic Survey (BAS) recently captured this video footage of a huge crack in the Larsen C Ice Shelf, on the Antarctic Peninsula.
Currently a huge iceberg, roughly the size of Norfolk, looks set to break off Larsen C Ice Shelf, which is more than twice the size of Wales.
Satellite observations from February 2017 show a growing crack in the ice shelf which suggests that an iceberg with an area of more than 5,000 km² is likely to calve soon.
Researchers from the UK-based MIDAS project, led by Swansea University, have reported several rapid elongations of the crack in recent years.
BAS scientists are involved in a long-running research programme to monitor ice shelves to understand the causes and implications of the rapid changes observed in the region.
They shot this footage as they flew over the ice shelf on their way to collect science equipment.
During the current Antarctic field season, a glaciology research team has been on Larsen C using seismic techniques to survey the seafloor beneath the ice shelf.
Because a break up looks likely the team did not set up camp on the ice as usual.
Instead they made one-off trips by twin otter aircraft supported from the UK’s Rothera Research Station.
Ice shelves in normal situations produce an iceberg every few decades.
There is not enough information to know whether the expected calving event on Larsen C is an effect of climate change or not, although there is good scientific evidence that climate change has caused thinning of the ice shelf.
Once the iceberg has calved, the big question is whether Larsen C will start to retreat.

The growth follows reports from early May that the crack across the ice shelf had sprouted a branch, further underscoring how unstable the ice is becoming.
Ice shelves float over water and essentially act as doorstops that hold back the vast Antarctic ice sheet.
The breakup is sure to be a spectacle both awe-inducing and horrifying.
The iceberg on the verge of splitting off is estimated to be the size of Delaware, covering an area of 1,930 square miles.
That’s equal to 10 percent of the ice shelf’s total area.

Once it breaks off, scientists are concerned that the rest of ice shelf could collapse afterwards, a fate that befell Larsen A in 1995 and Larsen B in 2002.
In Larsen B’s case, the ice shelf collapsed in the span of a month following an influx of mild air.

Larsen-C crack interferogram
Two Sentinel-1 radar images from 7 and 14 April 2017 were combined to create this interferogram showing the growing crack in Antarctica’s Larsen-C ice shelf.
Polar scientist Anna Hogg said: “We can measure the iceberg crack propagation much more accurately when using the precise surface deformation information from an interferogram like this, rather than the amplitude – or black and white – image alone where the crack may not always be visible.”
When the ice shelf calves this iceberg it will be one of the largest ever recorded – but exactly how long this will take is difficult to predict.
The sensitivity of ice shelves to climate change has already been observed on the neighbouring Larsen-A and Larsen-B ice shelves, both of which collapsed in 1995 and 2002, respectively.
These ice shelves are important because they act as buttresses, holding back the ice that flows towards the sea.
The Copernicus Sentinel-1 two-satellite constellation is indispensable for discovering and monitoring events like these because it delivers radar images every six days, even when Antarctica is shrouded in darkness for several months of the year.

In February, the New York Times reported that when the iceberg breaks off, it will weaken or destroy two key areas where ice overlaps islands.
Those areas help keep the ice shelf from falling apart. Losing them could dramatically reduce the remaining ice shelf’s stability.
Larsen C is substantially larger than its former neighbors Larsen A and B, and its loss would be a huge blow to ice on the Antarctic Peninsula.

The changes don’t just stop with the Larsen C crack or the Antarctic Peninsula in general.
The vast majority of ice shelves are losing volume due to rising ocean and air temperatures.
That’s helped prime parts of West Antarctica for what might be unstoppable melt that could raise sea levels at least 10 feet.

Researchers also recently found meltwater ponds are much more common than previously thought. They even discovered a roaring seasonal waterfall on the Nansen Ice Shelf.

These and other findings make clear that the Larsen C crack is just one of many changes happening to Antarctica.
Global warming has pushed temperatures up to 5°F higher in the region since the 1950s and they could increase up to 7°F further by the end of the century, putting more stress on ice.

Though the changes are happening in the most remote part of the planet, they’re being felt thousands of miles away as ice turns to water and starts to lap against increasingly beleaguered coastal communities around the world.
And the impacts will only grow more severe unless carbon pollution is reined in.

Links :

Monday, June 5, 2017

Henry de Monfreid : Red Sea secrets


Red Sea pirate, smuggler, gun runner and writer, artist, photographer, (fake) art dealer...

...Henri de Monfreid aka Abdul Hai onboard Altaïr
Nobleman, writer, adventurer and inspiration for the swashbuckling gun runner in the Adventures of Tintin, Henri de Monfried lived by his own account ‘a rich, restless, magnificent life’ as one of the great travellers of his or any age.

Infamous as well as famous, his name is inextricably linked to the Red Sea and the raffish ports between Suez and Aden in the early years of the twentieth century.
(1860 map)

Henry de Monfreid's most popular book is Hashish: A Smuggler's Tale.
He seeks his fortune by becoming a collector and merchant of the fabled Gulf pearls, then is drawn into the shadowy world of arms trading, slavery, smuggling and drugs.
Hashish was the drug of choice, and de Monfried writes of sailing to Suez with illegal cargos, dodging blockades and pirates.

Henry de Monfreid onboard «Obok» sailing boat, with his son Daniel and his grandson Guillaume, April 17th 1962 (crédit Jacques Barde/l’Indépendant).
"Never be afraid of life, never be afraid of adventure, trust chance, luck, destiny.
Go, go and conquer other spaces, other hopes. The rest will be given to you."
from The Secrets of the Red Sea (1931) by Henry de Monfreid
"I have lived a rich, restless, magnificent life", Monfreid declared
a few days before dying in 1974 at the age of 95. 

Links :

Sunday, June 4, 2017

Jack O'Neill, the wetsuit pioneer

Jack O’Neill, surfer, ocean lover, boating enthusiast, wetsuit pioneer, balloonist, and founder of the iconic worldwide surf company O'Neill, has passed away in Santa Cruz, California, of natural causes at the age of 94.

Jack O'Neill is one of the most notable surf industry pioneers and ocean conservationists.
His development of better wetsuits enabled surfers to surf in cold waters never before imagined.