Kenneth Dunton, Professor of Marine Sciences at the University of Texas, Austin, has a somber video on “The New Arctic”:
h/t Climate Crocks
Kenneth Dunton, Professor of Marine Sciences at the University of Texas, Austin, has a somber video on “The New Arctic”:
h/t Climate Crocks
Image of massive Arctic sea ice cracks showing temperature of the ice and the cracks between floes. Via Arctic Sea Ice blog.
By Neven Acropolis
The sea ice cap on top of the Arctic Ocean is often imagined to be a monolithic, continuous sheet of ice floating on water. A closer look quickly shows it is rather a collection of larger and smaller pieces of sea ice. Of course, we have all seen the images of ice floes separated by open water during summer, but even during winter the ice pack gets fractured, leading to leads that quickly freeze over again.
This explains how from the 1950's onwards submarines were able to emerge at the North Pole (the image on top is showing the USS Connecticut as it surfaces in the Arctic Circle on March 19th 2011; copyright: Kevin S. O’Brien, U.S. Navy). The subs couldn’t break through the thick ice and had to look for a lead where the ice was thinner.
Strangely enough those who deny the reality and potential consequences of AGW still like to abuse this event and claim it somehow proves that nothing unusual is happening up North. It doesn’t prove or disprove anything, as cracks and leads have always been a normal feature of the Arctic sea ice pack. But ‘normal’ is a word that has become less and less applicable to the Arctic in recent times. The 2012 melting season was the latest climax in a series of record years, that showed conclusively that the ice is thinner than it has been for a very long time.
We don’t even have to await the coming melting season to see this re-confirmed. We can see it right now, at the end of the freezing season. Like I just said, cracks are a regular feature of the Arctic, but this video below, made by NOAA’s Visualization Lab, shows a cracking event that is very rare, if not unique:
Ice, however thin, doesn’t fracture by itself. It needs wind to pull the ice pack apart. This wind was provided by a big, intense and stubborn high pressure area that started about a month ago and kicked the Beaufort Gyre into action, which is an ocean circulation pattern that transports the ice in a clockwise fashion from the North American coast towards Siberia.
This short animation of ASCAT radar images shows the movement in 10 day intervals from January 1st onwards, compared to the previous three winters. The black dot represents the North Pole, the white mass below it is the northern part of the Greenland Ice Sheet, the brighter colours represent thicker multi-year ice that survived last year’s melting season:
Aside from the red circle showing the start of the cracking event, there is clearly another big difference with previous years (blue rectangles). At the end of the previous three freezing seasons some of the multi-year ice in that disappearing safe haven north of Greenland and the Canadian Archipelago was transported into the Beaufort Sea. This buffer zone of thicker, older ice actually prevented an ice massacre in the 2010 and 2011 melting seasons, but unexpectedly didn’t stand a chance in 2012. That means that this melting season there is no buffer zone on the Pacific side of the Arctic.
On top of that there is this cracking event, the effects of which are difficult to predict. Even though sea ice extent and area have reached their annual peak and temperatures aren’t as low as they used to be, it is still quite cold in the Arctic. The labyrinth of leads that stretches all the way to Greenland due to another intense high pressure area, is freezing over again with a thin layer of ice (see yesterday’s satellite image). A possible outcome could be that when the Sun starts to beat down on this part of the Arctic from May onwards, the thin ice will quickly disappear leaving behind stretches of open water well inside the ice pack. Under the right circumstances this could significantly accelerate melting. Never mind the fact that the ice pack has started to break up in ever smaller parts so early in the year, making it much easier to move the ice around.
What about those big high pressure areas causing all that thin ice to crack and get caught up in the Beaufort Gyre? Not only have they been spurring on the spectacular cracking event of recent weeks, they are also helping winter to keep parts of the US and Europe in its icy grip. The highs are tied to a sudden stratospheric warming event (SSW) that has effectively made the Polar Vortex collapse relatively early, after it was already considerably weakened by a SSW in January. The Polar Vortex normally keeps cold air from spilling out all over the Northern Hemisphere. As Andrew Freedman wrote on Climate Central a couple of days ago:
The weather map across the Northern Hemisphere features a sprawling and unusually strong area of High pressure over Greenland that is serving as an atmospheric stop sign, slowing weather systems as they move from west to east, and allowing storms to deepen off the eastern seaboard and tap into more cold air than they otherwise might have.
That is not your typical fair weather area of High pressure, either. Some computer models have been projecting that, sometime during the next couple of days, the Greenland High could come close to setting the mark for the highest atmospheric pressure ever recorded.
The blocking pattern has helped direct cold air into the lower 48 states as well as parts of Europe, while the Arctic has been experiencing dramatically warmer-than-average conditions, particularly along the west coast of Greenland and in northeastern Canada. Blocking patterns are often associated with extreme weather events, from heat waves like the one that occurred last March, to historic cold air outbreaks and blizzards.
Another atmospheric blocking event on a large scale. What a coincidence. Below there’s a composite image of the two recent high pressure areas, the extremely negative Arctic Oscillation Index and temperature anomalies for the Arctic since January 1st (click for a larger version):
As can be seen on the image in the lower right corner, temperatures in the past three months have been anomalously high over Greenland and Baffin Bay, where sea ice area has already started to drop. This doesn’t bode well with last year’s events in mind, when almost all of the Greenland Ice Sheet was melting at one point (something which allegedly only occured once since the Holocene Climatic Optimum) and wild streams washed away bridges and heavy machinery, culminating in a record yearly amount of 570 Gt of melted volume.
So is there any good news with regards to the Arctic? Well, more and more oil companies are deciding that Arctic drilling is too difficult and therefore not worth the investment. But when it comes to sea ice I can only offer one thin sliver of hope. According to the PIOMAS sea ice volume model, our best tool for estimating the volume and average thickness of the ice pack, there is approximately as much ice as there was last year. Even though average thickness figures (calculated by dividing the volume by total area) suggest that the volume increase occured on the outer edges of the ice pack where ice will melt out anyway, it is still mildly comforting, as volume numbers were quite a bit below those of previous years so far:
Although the melting season has now officially started and sea ice area/extent has started to decrease, the ice will thicken some more until the Sun takes over the entire Arctic Circle. Perhaps weather conditions will be mild, gigantic cyclones leave the ice alone, and the ice turns out to be sturdier after all. But given the current status a new record is a very definite possibility. It’s not for nothing that we are entering the period that according to [early versions of] Wieslaw Maslowski’s model could see an ice-free Arctic (sea ice area below 1 million km2) for the first time in a very long time. This will probably have consequences, if they aren’t already upon us.
We’ll have to wait and see…
– by Neven Acropolis, who oversees the Arctic Sea Ice blog.
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By Kiley Kroh
After a year full of mishaps and failures in its quest to drill for oil off the coast of Alaska, Royal Dutch Shell announced today that it would not pursue exploratory drilling activity in the Arctic Ocean this year. The decision comes as the Obama administration nears the end of its high-level, 60-day review of Shell’s troubled Arctic drilling program, which was announced on January 8.
Last year was fraught with problems for Shell as the company attempted the first Arctic offshore exploratory drilling activity in decades. Technical failures, permit violations, struggles with the harsh and unpredictable Arctic conditions, and warnings from a wide range of voices all combined to discredit the company’s claims that such operations could be carried out safely and responsibly.
Shell made clear it sees this announcement as a hiatus, not a cancellation of its plans to tap the Arctic reserves. Marvin Odum, Shell’s Director of Upstream Americas said, “Our decision to pause in 2013 will give us time to ensure the readiness of all our equipment and people following the drilling season in 2012.”
Following mishaps this year, both of the company’s Arctic drilling rigs, the Kulluk and Noble Discoverer, require substantial repairs and will be towed to Asia. The Kulluk was damaged when it was grounded near Kodiak, Alaska on New Year’s Eve and the Noble Discoverer was recently cited for multiple safety and environmental violations – now the subject of an investigation that was handed over to the Department of Justice this week.
As articulated in the recent op-ed co-authored by John Podesta and Carol Browner, the Center for American Progress was open to the possibility of offshore drilling in this remote region provided the Administration took significant steps to strengthen safeguards and improve response capacity, and the industry could demonstrate it was prepared for the extreme risk. Instead, Shell proved precisely the opposite – the oil and gas industry is not prepared for the enormous challenge of drilling in the Arctic Ocean.
As we’ve detailed numerous times, there is a tremendous and incalculable risk associated with any offshore operations in the Arctic. First, the region lacks even the basic infrastructure that would be necessary to mount a large-scale response to an oil spill or other major incident – roads, major airports, ports, a permanent Coast Guard facility, adequate facilities to house and feed responders. These obstacles, coupled with the extreme and volatile conditions in which companies would be operating, led the insurance giant Lloyd’s of London to warn companies that responding to an oil spill in a region “highly sensitive to damage” would present “multiple obstacles, which together constitute a unique and hard-to-manage risk.” And Total SA, the fifth largest oil and gas company in the world, announced it wouldn’t seek to drill in the Arctic because an accident there would be a “disaster.”
Rushing into Arctic offshore drilling is not an imperative and thus should not be attempted unless and until independent auditors determine the industry and the government are capable of acting responsibly and responding to a true worst-case scenario. No operation is foolproof, but when even the most carefully watched drilling operations repeatedly fail to attain safety certification, then are hit with routine air pollution violations, and marred by twice letting major pieces of equipment be cast adrift, the American people have no reason to continue taking oil companies at their word when they tell us they can operate safely and responsibly in this remote and dangerous region.
Related Resources:
– Kiley Kroh is the Associate Director for Ocean Communications at the Center for American Progress
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by Kiley Kroh and Michael Conathan
This week’s grounding of Shell’s enormous Kulluk drilling rig near Kodiak Island, Alaska has not inspired confidence in its preparedness to drill for oil in the Arctic Ocean.
The rig was being towed from Dutch Harbor, Alaska to Seattle when its tow vessel lost control of the massive platform during a harsh winter storm. After numerous attempts to secure the equipment failed, it settled near the shore of uninhabited Sitkalidak Island in the western Gulf of Alaska on Monday night and remains there – with nearly 150,000 gallons of fuel and other fluids on board. The Coast Guard is coordinating a 500-plus person response to assess the damage, but neither they nor Shell has any idea when or how they will regain control of the foundering giant.
Adding insult to injury, on Thursday, the Alaska Dispatch reported that the reason Shell was working so feverishly to move the rig in such harsh conditions was to avoid paying millions of dollars in state taxes it would have owed if the rig was still in Alaska waters on January 1.
Far from an isolated incident, the latest fiasco is just the most recent in a litany of technical failures and struggles with Mother Nature that continue to accentuate Shell’s lack of preparedness to operate in the region. As Christopher Helman writes in Forbes, “It would be a comedy of errors, if the stakes weren’t so high.”
Each of these mishaps, warnings and troubling revelations would individually be reason for pause. Taken together, they offer overwhelming evidence that the oil and gas industry is not prepared for the enormous challenge and incalculable risk of offshore drilling in the remote and volatile Arctic Ocean. Exploiting Arctic offshore reserves is not an imperative and, in fact, is an absurd response to the devastating effects of climate change that are enabling offshore drilling in the first place. Despite investing more than $5 billion into an Arctic venture that includes top-notch crews and state-of-the-art equipment, Shell has stumbled every step of the way.
Here is a look back at some of the major mishaps Shell incurred and warnings they received during 2012:
February: An independent report by the Government Accountability Office identified a slew of environmental, logistical, and technical challenges associated with Arctic offshore drilling and concluded Shell’s “dedicated capabilities do not completely mitigate some of the environmental and logistical risks associated with the remoteness and environment of the region.”February: 60 members of congress, nearly 400,000 American citizens and 573 scientists urged the administration to halt Arctic offshore drilling in multiple letters to the White House and the Department of the Interior.April: Insurance giant Lloyd’s of London issued a report on Arctic offshore drilling, warning that responding to an oil spill in a region that is “highly sensitive to damage” would present “multiple obstacles, which together constitute a unique and hard-to-manage risk.”April: German bank WestLB announced it will not provide financing to any offshore oil or gas drilling in the Arctic, saying the “risks and costs are simply too high.”June: Expressing confidence in Shell’s preparedness to operate safely in the region, Interior Secretary Ken Salazar tells reporters “I believe there’s not going to be an oil spill.”July: Shell clarifies an oft-pilloried statement in its spill response plan which suggested they would recover 95 percent of any spilled oil if a spill occurs in the Arctic Ocean. Its new position is that they only plan to “encounter” 95 percent of spilled oil, with no guarantees on how much they could actually collect.July: In an incident that proved to foreshadow future problems, Shell briefly lost control of its Noble Discoverer rig when the vessel slipped its mooring and came close to running aground in Dutch Harbor, Alaska.July: Shell’s oil spill response barge, a key piece of oil spill response equipment, repeatedly fails to obtain Coast Guard certification. In conjunction with late lingering sea ice which blocks access to the drill sites, these delays prevented Shell from beginning drilling work on schedule.August: Norwegian oil and gas company Statoil announces it will suspend its own plans to drill offshore in the Alaskan Arctic Ocean after watching Shell’s struggles in the region. Spokesman Jim Schwartz explained: “The bottom line is, in light of the significant uncertainty regarding Alaska offshore exploration, we’ve decided to take what we believe is a prudent step of observing the outcome of Shell’s efforts before finalizing our own exploration decision time frame.”September: A British parliamentary committee called for a halt to drilling in the Arctic Ocean until necessary steps are taken to protect the region from the potentially catastrophic consequences of an oil spill.September: France based Total SA, the fourth largest publicly traded oil and gas company in the world, became the first major oil producer to admit that offshore drilling in Arctic waters is a risky idea, saying such operations could be a “disaster” and warning other companies against drilling in the region.September: After repeatedly failing to receive Coast Guard approval for its containment barge Shell was forced to postpone exploratory drilling operations until 2013 and settle instead for beginning to drill two non-oil producing preparatory wells.September: Just one day after beginning its long-awaited preparatory drilling operations, Shell suspends drilling as a massive ice pack covering approximately 360 square miles drifts toward the site.November: More than a week after preparatory drilling ended for the season, Shell experienced numerous complications as it tried to get its Kulluk rig out of the Beaufort Sea as winter sea ice encroaches.December: Internal emails between Interior Department officials reveal the September test of Shell’s oil spill containment system was not just a failure but a complete disaster. The containment dome “breached like a whale” and was “crushed like a beer can” – and all in the comparatively temperate waters of Puget Sound.December: Shell’s second drilling rig, Kulluk, slips its cables while being towed out of Alaska waters on an accelerated schedule in order to dodge paying Alaska taxes in 2013. The rig, along with its 150,000 gallons of fuel and drilling fluid, washes up on an uninhabited island along one of Alaska’s most pristine coastlines.Kiley Kroh is the Associate Director for Ocean Communications and Michael Conathan is the Director of Ocean Policy and the Center for American Progress.
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Photo: Jon Klingenberg / US Coast Guardby Kiley Kroh
It appears 2013 will begin much like 2012 ended for Shell’s Arctic Ocean drilling efforts – with yet another mishap.
After several failed attempts to secure the equipment in harsh weather, Shell’s enormous Kulluk drilling rig ran aground near Kodiak Island, Alaska late Monday night. With approximately 143,000 gallons of fuel and 12,000 gallons of lubricating oil and hydraulic fluid on board, the Coast Guard is now preparing for the “salvage and possible spill-response phase of this event.” Two Coast Guard flyovers on Tuesday did not detect any leakage but a severe winter storm – with winds up to 70 mph and waves as high as 50 feet – has prevented crews from conducting a full assessment of the damage.
After an initial exploratory drilling season plagued with technical failures, struggles with Mother Nature, and numerous warnings about the lack of preparedness to operate in the region, the oil company’s woes have only continued. In November, the challenging and unpredictable Arctic conditions created a logistical nightmare as Shell struggled to get the Kulluk out of the Beaufort Sea as winter sea ice encroached.
As the Anchorage Daily News reports, the rig was headed to Seattle for maintenance last week when a mechanical failure in the tow vessel halted its progress and left “crews struggling against worsening weather and a mobile drilling unit that was unmanned with no propulsion capability of its own.” Huge winds and fierce swells thwarted numerous attempts to reattach tow lines and bring the rig to safety. Once grounding appeared inevitable, crews worked to steer the vessel to an area where it would have the least environmental impact.
Fortunately for Shell, this latest incident occurred in close proximity to the Coast Guard station in Kodiak, which enabled the helicopter rescue of 18 crew members on Saturday in extremely challenging conditions. The station also happens to be the closest permanent Coast Guard facility to where the oil company intends to use the Kulluk when they resume drilling this summer – over 1,000 miles away or 3 to 4 hours by plane in ideal conditions.
Like each of the incidents before it, the ongoing crisis with the Kulluk underscores the numerous challenges presented by operating in the Arctic, as well as the industry’s lack of preparedness to anticipate and overcome them. Drilling for oil in the Arctic Ocean carries an enormous amount of risk – a fact pointed out not just by environmentalists but a major insurance company, bank, legislative body, and even a fellow oil major among others.
As Rep. Ed Markey (D-MA) emphasized in a statement released Tuesday, “Oil companies keep saying they can conquer the Arctic, but the Arctic keeps disagreeing with the oil companies … Drilling expansion could prove disastrous for this sensitive environment.”
Problems with logistics, infrastructure, and scientific knowledge only add to a bigger problem: that the Arctic is already being battered by accelerating climate change. In the summer of 2012, the region lost a mass of ice the size of Canada and Texas combined.
Shell’s Arctic endeavor has been riddled with problems from the outset. As the company looks toward a full drilling season in 2013, there are far more questions than answers and far more mishaps than successes.
Watch a video of Shell’s stranded rig:
Coast Guard overflight of Kulluk aground from anchoragedailynews on Vimeo.
Kiley Kroh is the Associate Director for Ocean Communications at the Center for American Progress
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