giftedviz.com
giftedviz.com July 22, 2018


Mysterious hole the size of ME opens in Antarctica

13 October 2017, 12:36 | Darnell Patrick

A seal swims by icebergs

Mysterious massive hole reopens in Antarctic sea ice All you need to know

Compared to the last time this happened 40 years ago, scientists have far more data on their hands.

And if scientists do figure out what is causing this particular polynia, it will shed some light on how Antarctica will change over the next few years. Scientists are now investigating to know how it was formed.

A robotic float has been deployed to study the polynya's measurements, which lies hundreds of kilometers from the ice edge. Such ice-free areas are called 'polynya' (Russian) by polar scientists.

Actually, this type of phenomena can be termed as polynya- an area of open water completely enclosed by sea ice.

In the year 1970, A polynia was observed in the same location, in Antarctica's Weddell Sea but at that time observation tools weren't almost as good, so that hole remained largely unstudied.

NBW issued against Imran Khan
Khan and ex-premier Nawaz Sharif have been at loggerhead for years, especially after the Panama Papers scandal in April last year. The petitioner alleged that Khan received almost $3 million in foreign funds that were collected through two offshore companies.


Actor Anupam Kher replaces Gajendra Chauhan as FTII chairman
Bollywood filmmaker and actor Anupam Kher is the new chairman of the Film and Television Institute of India ( FTII ), Pune . Kher @AnupamPkher?", Chauhan had tweeted on September 17. "As a student I can say his mentoring has been a boon".


Daesh 'White Widow' Reportedly Killed in Syria
Chip Chapman, the former head of counterterrorism at the Ministry of Defense, told Press Association that under the U.N. According to the Sun , Jones was last seen fleeing from Raqqa, heading for a town on the border with Iraq .


"It looks like you just punched a hole in the ice", atmospheric physicist Kent Moore, of the University of Toronto, told Vice's Motherboard. At its peak, the Weddell Polynya measured 31,000 square miles, which is larger than the Netherlands and almost the size of the state of Maine. It went away for four decades until it reopened for a few weeks past year.

Martin says that the re-appearance of the hole at this time confirms the center's previous calculations; GEOMAR has posited a model that explains the polynya as part of natural climate processes. Moore said that this giant hole has been open for four months so far and he guessed that it would stay open for rest of the winter. In addition, scientists hope that in the near future it will be possible to simulate such a system with the help of computer simulation. Ocean currents bring the warmer water upwards, where it melts the blankets of ice that had formed on the ocean's surface. The salt increases the density of the surface water, making the surface water heavier than the water below, causing it to sink.

Usually, a very cold but fresh layer of water covers a warmer and saltier layer of water, acting as insulation.

Lead Image: Winter sea ice blankets the Weddell Sea around Antarctica with massive extra-tropical cyclones hovering over the Southern Ocean in this satellite image from September 25, 2017.

A vast hole has re-opened in Antarctica, and it could have something to teach us about climate change.



Other News

Trending Now

Freeport-McMoRan Inc (FCX) Shares Sold by CIBC World Markets Inc
Quantitative Investment Management LLC boosted its position in shares of Freeport-McMoRan by 289.3% in the third quarter. Marvin & Palmer Associates Inc acquired 12,860 shares as Eaton Corp. 123 funds opened positions while 686 raised stakes.

Harvey Weinstein Says 'I'm Not Doing OK' Amid Sexual Misconduct Scandal
Weinstein attended the world-famous festival many times and several movies he produced have been selected in the competition. A spokesman for the New York Police Department confirmed to AFP it is investigating the 2004 case, but provided no details.

Equifax may have been breached again
The company has taken part of its website offline after an independent analyst said the site may have been hacked. Richard Smith, the company's former chief executive stepped down.

James Murdoch survives close call with shareholders
Game of Thrones helped Sky increase customer numbers by 51 per cent in the first quarter, as revenue and earnings also grew. Mr Murdoch won 51% of votes cast by independent shareholders at the annual general meeting - up from 49% a year ago .

Iran warns U.S. on designating Guards terrorist group
According to him, if any side fails to stand committed to the deal, it would be tarnishing its own reputation. The aide went on to accuse Washington of supporting Islamic State (IS, formerly ISISISIL) terrorists.

Arsenal boss Wenger fears lengthy absence for Mustafi
Arsene Wenger has revealed Arsenal defender Shkodran Mustafi will be out of action until next month due to a hamstring injury. It looks like if he survives the test he is capable to play".

Half the universe's missing matter has just been finally found
This phenomenon is called the Sunyaev-Zel'dovich Effect, and causes the scattering of the photos left out after the Big Bang. The two papers are both being considered for publication in the Monthly Notices of the Royal Astronomical Society.

Turkey hopes for quick normalization of soured bilateral ties with US
Consulate in the southern province of Adana, was arrested in March for alleged links to outlawed Kurdish militants. His remarks came three days after the USA suspended non-immigrant visa services in Turkey .

Florida Gators take their mascot a little too literally
Nike has been developing the alligator-themed uniform for two years, and unveiled it Monday night. To see the unusual new look live, tune in Saturday at 7 p.m. when Florida hosts Texas A&M .

Arsene Wenger admits Gunners ARE considering selling Mesut Ozil in January
Arsenal manager Arsene Wenger today admitted that the club may sell Mesut Ozil and Alexis Sanchez in the January transfer window. Personally, I would prefer to be at home on Christmas Eve and celebrate but that could still happen if we play early on the day.