Water resistant iPad2/iPad cases :
Aquapac : large Whanganui
DriPro : Sporty
DryCase
Watertight and impact proof cases :
Otterbox : Defender case
Trident : Aegis and Kraken series cases
LifeProof
Monday, September 19, 2011
iPad compatible waterproof case : panorama of solutions
Water resistant iPad2/iPad cases :
Aquapac : large Whanganui
DriPro : Sporty
DryCase
Otterbox : Defender case
Trident : Aegis and Kraken series cases
LifeProof
Deep oceans can mask global warming for decade-long periods
Regions that are blue or green will likely be at lower risk of drought, while those in the yellow and red spectrum could face more unusually-extreme drought conditions.
This color scale is different from the one used in the still images, below. (©UCAR)
From LiveScience
Temperatures are projected to rise by several degrees this century, but the deep oceans will periodically interrupt the increase by absorbing excess heat, a new study says.
The world is projected to continue warming over the century; however, the increase isn't expected to be a smooth one.
Projections show that temperatures will likely stabilize for periods as long as a decade before the warming continues.
So where is that extra heat going? The deep oceans, scientists say.
"We will see global warming go through hiatus periods in the future," said Gerald Meehl, lead author of a new study that connects warming hiatuses with absorption of heat by the deep ocean and a scientist at the National Center for Atmospheric Research (NCAR) in Colorado.
"However, these periods would likely last only about a decade or so, and warming would then resume. This study illustrates one reason why global temperatures do not simply rise in a straight line."
To figure out where the heat was going, Meehl and his colleagues ran five simulations on a computer model that portrays complex interactions between the atmosphere, land, oceans and sea ice.
Their results showed that temperatures would rise by several degrees during this century, but with hiatus periods interrupting the increase.
During these hiatus periods, simulations showed that extra energy entered the deep oceans, absorbing a disproportionate amount of heat.
They found the vast area deeper than 1,000 feet (300 meters) warmed by about 18 to 19 percent more during the hiatus periods than at other times.
Meanwhile, shallower waters warmed substantially less.
"This study suggests the missing energy has indeed been buried in the ocean," said Kevin Trenberth, a study author and NCAR scientist.
"The heat has not disappeared and so it cannot be ignored. It must have consequences."
Their study showed that the deep-ocean absorption of heat had a familiar effect.
During a hiatus period, sea-surface temperatures decreased across the tropical Pacific, while increasing in the higher latitudes.
This pattern resembles that of a La Niña event (El Niño's counterpart), a climate pattern marked by cooler tropical Pacific temperatures.
The study is published in the Sept. 18 issue of the journal Nature Climate Change.
Links :
Temperatures are projected to rise by several degrees this century, but the deep oceans will periodically interrupt the increase by absorbing excess heat, a new study says.
The world is projected to continue warming over the century; however, the increase isn't expected to be a smooth one.
Projections show that temperatures will likely stabilize for periods as long as a decade before the warming continues.
So where is that extra heat going? The deep oceans, scientists say.
"We will see global warming go through hiatus periods in the future," said Gerald Meehl, lead author of a new study that connects warming hiatuses with absorption of heat by the deep ocean and a scientist at the National Center for Atmospheric Research (NCAR) in Colorado.
"However, these periods would likely last only about a decade or so, and warming would then resume. This study illustrates one reason why global temperatures do not simply rise in a straight line."
To figure out where the heat was going, Meehl and his colleagues ran five simulations on a computer model that portrays complex interactions between the atmosphere, land, oceans and sea ice.
Their results showed that temperatures would rise by several degrees during this century, but with hiatus periods interrupting the increase.
During these hiatus periods, simulations showed that extra energy entered the deep oceans, absorbing a disproportionate amount of heat.
They found the vast area deeper than 1,000 feet (300 meters) warmed by about 18 to 19 percent more during the hiatus periods than at other times.
Meanwhile, shallower waters warmed substantially less.
"This study suggests the missing energy has indeed been buried in the ocean," said Kevin Trenberth, a study author and NCAR scientist.
"The heat has not disappeared and so it cannot be ignored. It must have consequences."
Their study showed that the deep-ocean absorption of heat had a familiar effect.
During a hiatus period, sea-surface temperatures decreased across the tropical Pacific, while increasing in the higher latitudes.
This pattern resembles that of a La Niña event (El Niño's counterpart), a climate pattern marked by cooler tropical Pacific temperatures.
The study is published in the Sept. 18 issue of the journal Nature Climate Change.
Links :
- UCAR : Climate change: Drought may threaten much of globe within decades
Sunday, September 18, 2011
Image of the week : melt ponds, Petermann ice island
From NASA
After more than a year and several thousand kilometers of sailing the seas, Petermann Ice Island is still drifting in the North Atlantic off the shores of Newfoundland, Canada.
Once a hunk of ice fives times the size of Manhattan Island, the ice island has splintered several times since it dropped off the edge of Greenland's Petermann Glacier.
Yet still it behaves a bit like the massive ice sheet it left 14 months ago. Astronauts on the International Space Station used a digital camera to capture this view of Petermann Ice Island A, fragment 2, off of the northeast coast of Newfoundland on August 29, 2011.
Spanning roughly 4 kilometers by 3.5 kilometers (2.5 by 2 miles), the ice island is covered with melt ponds and streams, much as the surface of Greenland looks in mid-summer.
As ice melts on top of the Greenland ice sheet, the melt water forms streams and pools in the depressions on the ice surface.
Drawn downslope by gravity—much like streams on a mountainside—water also runs toward the edges of the ice.
In some cases, it cracks through it and rushes to the bottom. Such processes appear to be at work on the ice island as well.
August 2011 was a busy month in the life of the ice island, according to the Canadian Ice Service.
On August 7, it became grounded on a shoal or shallow seafloor off of St. Anthony, Newfoundland, where it sat for 11 days.
By August 18, the ice island broke free and began drifting again, only to split into two large pieces about five days later.
The Ice Service last reported on it on August 25.
Links :
Saturday, September 17, 2011
The Plymouth capsize club
Race day two at the America's Cup World Series in Plymouth saw some blustery conditions, leading to three boats in the afternoon fleet race capsizing... spectacularly
Friday, September 16, 2011
New hi-tech boat swims like a killer whaler
Killer whale Seabreacher watercraft
From TechNewsDaily
A new watercraft is giving wealthy adventure-seekers a taste of what it’s like to zip through the water like a killer whale.
Innespace's Seabreacher Y vessel — which resembles a killer whale and is similar in size and dimension — is part submarine, part speedboat and can even leap out of the water.
With a 260-horsepower supercharged engine that propels the vessel 55 mph on the surface and 20 mph underwater, the custom-made two-seater can be launched 16 feet into the air when it breaches.
A snorkel-mounted video camera transmits live video to LCD screens for the pilot and passenger during dives, and it also comes with GPS navigation and an on-board stereo system with iPod docking.
The vessels cost about $86,000 each.
Since Seabreacher boats are built to order and no two are alike due to owner customization, they aren't immediately available for purchase.
About 30 requests are on back-order, according to the company.
"Most of those who buy our vessels are wealthy eccentric people that love obscure toys and adrenaline sports," Innespace co-owner Rob Innes told TechNewsDaily.
"Many aren't even boat enthusiasts. However, we make sure all pilots are trained so they know how to operate the vessel."
"It doesn't seem scary from the outside, but it's completely different on the inside as you are submerged underwater and then propel high above the surface — there’s nothing like it," Innes said.
This isn't the first time Innespace launched a boat line that looks like mammals.
In previous years, the company introduced shark and dolphin-shaped vessels, which are still available for purchase.
Links :
A new watercraft is giving wealthy adventure-seekers a taste of what it’s like to zip through the water like a killer whale.
Innespace's Seabreacher Y vessel — which resembles a killer whale and is similar in size and dimension — is part submarine, part speedboat and can even leap out of the water.
With a 260-horsepower supercharged engine that propels the vessel 55 mph on the surface and 20 mph underwater, the custom-made two-seater can be launched 16 feet into the air when it breaches.
A snorkel-mounted video camera transmits live video to LCD screens for the pilot and passenger during dives, and it also comes with GPS navigation and an on-board stereo system with iPod docking.
The vessels cost about $86,000 each.
Since Seabreacher boats are built to order and no two are alike due to owner customization, they aren't immediately available for purchase.
About 30 requests are on back-order, according to the company.
"Most of those who buy our vessels are wealthy eccentric people that love obscure toys and adrenaline sports," Innespace co-owner Rob Innes told TechNewsDaily.
"Many aren't even boat enthusiasts. However, we make sure all pilots are trained so they know how to operate the vessel."
"It doesn't seem scary from the outside, but it's completely different on the inside as you are submerged underwater and then propel high above the surface — there’s nothing like it," Innes said.
This isn't the first time Innespace launched a boat line that looks like mammals.
In previous years, the company introduced shark and dolphin-shaped vessels, which are still available for purchase.
Links :
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