Feeds

Ice island snaps off Greenland: Just a fifth the size of 1962 whopper

And half the size of last big one two years back

New hybrid storage solutions

A vast island of ice has broken off a glacier in Greenland: but it is just one-fifth the size of one which snapped off from Canada in 1962 and half the size of one seen in 2010.

The new monster iceberg is assessed as covering 46 square miles by professor Andreas Muenchow of the University of Delaware, which he calculates as roughly twice the size of Manhattan island. It calved from the Petermann glacier in Greenland two days ago, according to an informative release from the university, and this has been confirmed from above by satellite photos. The breakoff follows a similar but bigger event in 2010, which saw a four-Manhattan berg snap off the Petermann and float away.

Muenchow says that the local air temperature in Greenland has climbed by more than two degrees since 1987, but he doesn't think this of itself means that global warming caused the ice to break off.

“The observed warming is not proof that the diminishing ice shelf is caused by this," says the prof, "because air temperatures have little effect on this glacier; ocean temperatures do, and our ocean temperature time series are only five to eight years long — too short to establish a robust warming signal.”

Muenchow hopes to gain more data from undersea sensors placed beneath the glacier shelf in 2009 and due to be recovered by a Canadian coastguard vessel this summer.

The Delaware uni report notes that the two recent berg breakoffs from the Petermann are small beer compared with the last big ice-island calving prior to 2010, which saw a stupendous 230-square-mile (roughly a ten-Manhattan) monster break loose from Ellesmere Island in Canada. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Boffins: Behold the SILICON CHEAPNESS of our tiny, radio-signal-munching IoT sensor
Single ant-sized Stanford chip combines radio, 'puter, antenna
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
TROUT and EELS in SINISTER PACT to RULE the oceans
Slimy chums form deadly alliance to sweep seas
Drones swarm over bearded Brit billionaire's island getaway
Just to take lovely pictures though, after Richard Branson invests in 3D Robotics
Chelyabinsk-sized SURPRISE asteroid to skim Earth, satnav birds
Space rock appears out of nowhere, buzzes planet on Sunday
California blue whale numbers soar to historical levels, say boffins
Still far too many of them being struck by US ships, mind
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
'Duck face' selfie in SPAAAACE: Rosetta's snap with bird comet
Probe prepares to make first landing on fast-moving rock
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.